feat(verify-release): wire quality-rails evaluator stage into canonical verification (#1275)

- new canonical-only quality-rails stage (after build) invokes the evaluator
  CLI on the repo root — QC-19 monorepo subject — instead of duplicating
  presence logic; no ci.yml mirror (same shape as the build stage)
- parity spec updated: stage-name list, evaluator-delegation assertions, and
  negative controls for inline duplication / dropped command
- quality-rails README points at the probe inventory (input doc)

.woodpecker/ci-image.yml

@@ -22,9 +22,9 @@ steps:
     image: gcr.io/kaniko-project/executor:debug
     environment:
       REGISTRY_USER:
-        from_secret: gitea_username
+        from_secret: REGISTRY_USERNAME
       REGISTRY_PASS:
-        from_secret: gitea_password
+        from_secret: REGISTRY_PASSWORD
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
       CI_COMMIT_SHA: ${CI_COMMIT_SHA}

.woodpecker/ci.yml

@@ -30,6 +30,19 @@ steps:
       # the baked pnpm store.
       - pnpm install --frozen-lockfile --prefer-offline
 
+  # ---------------------------------------------------------------------------
+  # The steps below (sanitization, upgrade-guard, typecheck, lint, format,
+  # test) are the COMPLETE mandatory verification set. SDLC-D-034 mirrors them
+  # one-for-one in the canonical terminal verification command — root
+  # `pnpm verify:release` (scripts/verify-release.mjs) — which the publish
+  # pipeline (.woodpecker/publish.yml `verify` step) runs before ANY publish
+  # effect. These lines stay direct (not routed through the runner) because the
+  # #1017 test-enumeration guard audits framework tool paths through THIS
+  # surface; scripts/verify-release.test.mjs enforces that the runner's stage
+  # table keeps matching these commands exactly, so the two cannot drift.
+  # ---------------------------------------------------------------------------
+
+  # Canonical verify:release stage `sanitization`.
   # Blocking gate: public framework package must contain no operator-specific
   # personal data or private $HOME defaults. Runs early (no node_modules needed).
   sanitization:
@@ -47,6 +60,7 @@ steps:
       # with everything it guards; this direct line keeps one instrument running.
       - bash packages/mosaic/framework/tools/quality/scripts/check-test-enumeration.sh
 
+  # Canonical verify:release stage `upgrade-guard`.
   # Blocking gate (#791): a framework upgrade must never write or delete an
   # operator-owned path. The HARD GATE proves an unanticipated operator sentinel
   # survives a keep-mode reseed byte-identical (with rsync present AND absent —
@@ -68,6 +82,8 @@ steps:
       - bash packages/mosaic/framework/tools/quality/scripts/test-upgrade-durable-snapshot.sh
       - bash packages/mosaic/framework/tools/quality/scripts/test-install-migration.sh
 
+  # Canonical verify:release stage `typecheck` — the same `pnpm typecheck`
+  # invocation (which runs the checkout preflight first, then turbo).
   typecheck:
     image: *node_image
     commands:
@@ -78,7 +94,8 @@ steps:
       - sanitization
       - upgrade-guard
 
-  # lint, format, and test are independent — run in parallel after typecheck
+  # lint, format, and test are independent — run in parallel after typecheck.
+  # Each runs exactly its canonical verify:release stage command.
   lint:
     image: *node_image
     commands:
@@ -95,6 +112,12 @@ steps:
     depends_on:
       - typecheck
 
+  # Canonical verify:release stage `test` — the `pnpm test` line below is the
+  # shared command; everything else in this step is PIPELINE-LEVEL
+  # prerequisite the canonical command expects its caller to provide (SDLC-D-034):
+  # the ci-postgres service + pg_isready wait + db:migrate (postgres path),
+  # `apk add openssl`, and the pinned pi install. None of those can move into
+  # the runner (it must also work locally on the PGlite path with no database).
   test:
     image: *node_image
     environment:

.woodpecker/publish.yml

@@ -1,5 +1,19 @@
 # Build, publish npm packages, and push Docker images
 # Runs on main for stable publishes and on next for integration-line prereleases/images
+#
+# SDLC-D-034 publish gate: every publish effect (publish-npm, publish-next-npm,
+# and every image build/push step) depends DIRECTLY on the `verify` step below.
+# `verify` (a) asserts the provider's commit identity matches the actual
+# checkout (CI_COMMIT_SHA == git rev-parse HEAD, fail closed on mismatch or
+# emptiness) and (b) runs the canonical terminal verification command
+# (`pnpm verify:release`), which mirrors the PR CI pipeline's complete
+# mandatory set (sanitization, upgrade-guard, preflight+typecheck, lint,
+# format:check, test, build) — see scripts/verify-release.mjs. A missing,
+# failed, skipped, cancelled, or inconclusive verification therefore skips the
+# dependent publish effects (fail closed). Path-filtered short-circuits may
+# skip publish EFFECTS (e.g. docs-only merges) but never bypass `verify` for a
+# publish that does run: `verify` itself carries no path filter.
+# scripts/verify-release.test.mjs enforces this DAG invariant at checkout time.
 
 variables:
   # Pre-baked CI base (see .woodpecker/ci-image.yml): node:24-alpine +
@@ -48,6 +62,45 @@ steps:
       # Resolve from the baked pnpm store instead of a cold network fetch.
       - pnpm install --frozen-lockfile --prefer-offline
 
+  # SDLC-D-034 exact-commit publish gate. No `when`/path filter on purpose: it
+  # runs for every event this pipeline serves so no publish effect can ever
+  # start without it. Fails closed on commit-identity mismatch (or either SHA
+  # being empty) and on any incomplete verification.
+  verify:
+    image: *node_image
+    commands:
+      - *enable_pnpm
+      # (a) Commit identity: the provider's claimed SHA must equal the actual
+      # checkout HEAD — verification of anything else must never authorize a
+      # publish of this commit.
+      - |
+        if [ -z "$CI_COMMIT_SHA" ]; then
+          echo "[verify] FATAL: CI_COMMIT_SHA is empty — cannot certify commit identity" >&2
+          exit 1
+        fi
+        CHECKOUT_SHA="$(git rev-parse HEAD 2>/dev/null || true)"
+        if [ -z "$CHECKOUT_SHA" ]; then
+          echo "[verify] FATAL: git rev-parse HEAD returned nothing — cannot certify commit identity" >&2
+          exit 1
+        fi
+        if [ "$CI_COMMIT_SHA" != "$CHECKOUT_SHA" ]; then
+          echo "[verify] FATAL: provider commit ($CI_COMMIT_SHA) != checkout HEAD ($CHECKOUT_SHA)" >&2
+          exit 1
+        fi
+        echo "[verify] commit identity confirmed: $CHECKOUT_SHA"
+      # (b) Canonical terminal verification. Caller-provided prerequisites the
+      # runner expects (see .woodpecker/ci.yml comments): bash/rsync for the
+      # guard stages, openssl + the pinned pi binary for the test stage. git is
+      # baked into ci-base but re-asserted here so the identity check above can
+      # never silently depend on a stale baked image. DATABASE_URL is
+      # deliberately NOT set: the canonical command must hold on the PGlite
+      # path too and never sets or requires a database itself.
+      - apk add --no-cache bash rsync openssl git
+      - npm install -g @earendil-works/[email protected]
+      - pnpm verify:release
+    depends_on:
+      - install
+
   build:
     image: *node_image
     commands:
@@ -55,6 +108,7 @@ steps:
       - pnpm build
     depends_on:
       - install
+      - verify
 
   publish-npm:
     image: *node_image
@@ -114,6 +168,7 @@ steps:
         exit 1
     depends_on:
       - build
+      - verify
 
   publish-next-npm:
     image: *node_image
@@ -192,6 +247,7 @@ steps:
         echo "[publish-next] @mosaicstack/mosaic@next resolves to $RESOLVED_VERSION"
     depends_on:
       - build
+      - verify
 
   # TODO: Uncomment when ready to publish to npmjs.org
   # publish-npmjs:
@@ -205,6 +261,7 @@ steps:
   #     - bash scripts/publish-npmjs.sh
   #   depends_on:
   #     - build
+  #     - verify
   #   when:
   #     - event: [tag]
 
@@ -213,9 +270,9 @@ steps:
     when: *image_build_when
     environment:
       REGISTRY_USER:
-        from_secret: gitea_username
+        from_secret: REGISTRY_USERNAME
       REGISTRY_PASS:
-        from_secret: gitea_password
+        from_secret: REGISTRY_PASSWORD
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
       CI_COMMIT_SHA: ${CI_COMMIT_SHA}
@@ -242,15 +299,16 @@ steps:
         /kaniko/executor --context . --dockerfile docker/gateway.Dockerfile $DESTINATIONS
     depends_on:
       - build
+      - verify
 
   build-appservice:
     image: gcr.io/kaniko-project/executor:debug
     when: *main_image_build_when
     environment:
       REGISTRY_USER:
-        from_secret: gitea_username
+        from_secret: REGISTRY_USERNAME
       REGISTRY_PASS:
-        from_secret: gitea_password
+        from_secret: REGISTRY_PASSWORD
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
       CI_COMMIT_SHA: ${CI_COMMIT_SHA}
@@ -268,15 +326,16 @@ steps:
         /kaniko/executor --context . --dockerfile docker/appservice.Dockerfile $DESTINATIONS
     depends_on:
       - build
+      - verify
 
   build-web:
     image: gcr.io/kaniko-project/executor:debug
     when: *main_image_build_when
     environment:
       REGISTRY_USER:
-        from_secret: gitea_username
+        from_secret: REGISTRY_USERNAME
       REGISTRY_PASS:
-        from_secret: gitea_password
+        from_secret: REGISTRY_PASSWORD
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
       CI_COMMIT_SHA: ${CI_COMMIT_SHA}
@@ -294,3 +353,4 @@ steps:
         /kaniko/executor --context . --dockerfile docker/web.Dockerfile $DESTINATIONS
     depends_on:
       - build
+      - verify

README.md

@@ -138,9 +138,9 @@ mosaic brain tasks
 mosaic brain conversations
 
 # Agent forge pipeline
-mosaic forge run
+mosaic forge run [--simulate]        # fails closed (FORGE_NO_EXECUTOR) with no executor wired; --simulate for typed simulated runs
 mosaic forge status
-mosaic forge resume
+mosaic forge resume [--simulate]     # same fail-closed rule as forge run
 mosaic forge personas
 
 # Structured logging

apps/gateway/src/__tests__/cross-user-isolation.test.ts

@@ -190,7 +190,13 @@ beforeEach((ctx) => {
 });
 
 afterAll(async () => {
-  if (!handle) return;
+  // Cleanup only when the fixture actually installed rows. `handle` is set
+  // before the first query (createDb connects lazily), so on an unreachable
+  // database `handle` is truthy while nothing was inserted — cleanup must
+  // honor `dbAvailable` or the skip path fails the file with ECONNREFUSED in
+  // afterAll (caught live by the publish pipeline's no-DATABASE_URL verify
+  // step, pipeline 2486).
+  if (!handle || !dbAvailable) return;
   const db = handle.db;
 
   // Delete in dependency order (FK constraints)

apps/web/src/components/freshness/freshness-notices.tsx

@@ -0,0 +1,110 @@
+'use client';
+
+import type { ReactElement } from 'react';
+import { formatAge, type FreshnessLabel } from '@/lib/freshness/model';
+
+/**
+ * Rendering rules for non-current freshness states (RI-5-001).
+ *
+ * - `unavailable` renders an explicit failure panel — never an empty
+ *   healthy collection.
+ * - `stale` may render last-known data, but only under a visible label
+ *   carrying source identity, snapshot version, and age.
+ * - `partial` renders the verified parts plus an explicit list of what is
+ *   missing.
+ */
+
+interface RetryableNoticeProps {
+  readonly onRetry?: () => void;
+  readonly retryLabel?: string;
+}
+
+function RetryButton({ onRetry, retryLabel }: RetryableNoticeProps): ReactElement | null {
+  if (!onRetry) return null;
+  return (
+    <button
+      type="button"
+      onClick={onRetry}
+      className="mt-2 rounded-lg border border-surface-border px-3 py-1.5 text-xs transition-colors hover:border-gray-500"
+    >
+      {retryLabel ?? 'Retry'}
+    </button>
+  );
+}
+
+export interface UnavailableDataNoticeProps extends RetryableNoticeProps {
+  /** What is unavailable, e.g. "Tasks". */
+  readonly title: string;
+  /** Optional underlying failure detail (network message, invalidation reason). */
+  readonly detail?: string | null;
+}
+
+/** Explicit `unavailable` state. Never renders as an empty healthy collection. */
+export function UnavailableDataNotice({
+  title,
+  detail,
+  onRetry,
+  retryLabel,
+}: UnavailableDataNoticeProps): ReactElement {
+  return (
+    <div role="alert" className="rounded-lg border border-error/40 px-4 py-3 text-sm">
+      <p className="font-medium text-text-primary">{title} are unavailable</p>
+      <p className="mt-1 text-text-muted">
+        This is not an empty result — the data could not be verified from the gateway.
+        {detail ? ` ${detail}` : ''}
+      </p>
+      <RetryButton onRetry={onRetry} retryLabel={retryLabel} />
+    </div>
+  );
+}
+
+export interface StaleDataNoticeProps extends RetryableNoticeProps {
+  /** Provenance of the last-known snapshot being displayed. */
+  readonly label: FreshnessLabel;
+}
+
+/**
+ * Situational-awareness banner for `stale` data: last-known data may render,
+ * but visibly labeled with source identity, snapshot version, and age.
+ */
+export function StaleDataNotice({
+  label,
+  onRetry,
+  retryLabel,
+}: StaleDataNoticeProps): ReactElement {
+  return (
+    <div role="status" className="rounded-lg border border-warning/40 px-4 py-3 text-sm">
+      <p className="font-medium text-warning">Showing last-known data — it may be out of date</p>
+      <p className="mt-1 text-xs text-text-muted">
+        Source {label.source} · snapshot v{label.version} · fetched{' '}
+        {formatAge(label.fetchedAt, Date.now())}. Verdicts derived from this data are unknown and
+        changes are disabled until it is revalidated.
+      </p>
+      <RetryButton onRetry={onRetry} retryLabel={retryLabel ?? 'Revalidate'} />
+    </div>
+  );
+}
+
+export interface PartialDataNoticeProps extends RetryableNoticeProps {
+  /** Display names of the sections whose collections are unavailable. */
+  readonly missing: readonly string[];
+}
+
+/** `partial` surface banner: verified parts render, missing parts are explicit. */
+export function PartialDataNotice({
+  missing,
+  onRetry,
+  retryLabel,
+}: PartialDataNoticeProps): ReactElement {
+  return (
+    <div role="status" className="rounded-lg border border-warning/40 px-4 py-3 text-sm">
+      <p className="font-medium text-warning">Some data could not be loaded</p>
+      <p className="mt-1 text-xs text-text-muted">
+        {missing.join(', ')} {missing.length === 1 ? 'is' : 'are'} unavailable — sections below show
+        an explicit unavailable state instead of an empty list. Derived verdicts remain unknown
+        until every collection is revalidated.
+      </p>
+      <RetryButton onRetry={onRetry} retryLabel={retryLabel ?? 'Revalidate'} />
+    </div>
+  );
+}

apps/web/src/lib/freshness/model.spec.ts

@@ -0,0 +1,324 @@
+import { describe, expect, it } from 'vitest';
+import type { Task } from '@/lib/types';
+import {
+  acceptSnapshot,
+  assertMutable,
+  canMutate,
+  combineFreshness,
+  computeDigest,
+  computeFreshness,
+  DEFAULT_FRESHNESS_POLICY,
+  formatAge,
+  type FreshSnapshot,
+  invalidationReasonLabels,
+  StaleMutationError,
+  UNKNOWN_VERDICT,
+  verdictValue,
+} from './model';
+import { validateProjectCollection, validateTaskCollection } from './validators';
+
+const NOW = 1_800_000_000_000;
+
+const policy = { ...DEFAULT_FRESHNESS_POLICY, staleAfterMs: 60_000 };
+
+const taskPayload: Task[] = [
+  {
+    id: 'task-1',
+    title: 'T1',
+    description: null,
+    status: 'not-started',
+    priority: 'high',
+    projectId: 'project-1',
+    missionId: null,
+    assignee: null,
+    tags: null,
+    dueDate: null,
+    metadata: null,
+    createdAt: '2026-08-01T00:00:00.000Z',
+    updatedAt: '2026-08-01T00:00:00.000Z',
+  },
+];
+
+function acceptedTaskSnapshot(
+  overrides: Partial<FreshSnapshot<typeof taskPayload>> = {},
+): FreshSnapshot<typeof taskPayload> {
+  const result = acceptSnapshot({
+    value: taskPayload,
+    validate: validateTaskCollection,
+    previous: null,
+    policy,
+    source: 'gateway:/api/tasks',
+    now: NOW,
+  });
+  if (result.outcome !== 'accepted') {
+    throw new Error(`fixture setup failed: ${result.reason}`);
+  }
+  return { ...result.snapshot, ...overrides };
+}
+
+describe('computeFreshness', () => {
+  it('treats a missing snapshot as unavailable, never as an empty healthy collection', () => {
+    expect(computeFreshness({ snapshot: null, policy, now: NOW })).toBe('unavailable');
+  });
+
+  it('returns current for a fresh verified snapshot regardless of data emptiness', () => {
+    const empty = acceptSnapshot({
+      value: [],
+      validate: validateTaskCollection,
+      previous: null,
+      policy,
+      source: 'gateway:/api/tasks',
+      now: NOW,
+    });
+    if (empty.outcome !== 'accepted') throw new Error('expected acceptance');
+    expect(computeFreshness({ snapshot: empty.snapshot, policy, now: NOW })).toBe('current');
+  });
+
+  it('degrades to stale once the snapshot ages past staleAfterMs', () => {
+    const snapshot = acceptedTaskSnapshot();
+    expect(computeFreshness({ snapshot, policy, now: NOW + 60_001 })).toBe('stale');
+    expect(computeFreshness({ snapshot, policy, now: NOW + 59_999 })).toBe('current');
+  });
+
+  it('degrades to stale when the latest revalidation failed', () => {
+    const snapshot = acceptedTaskSnapshot();
+    expect(computeFreshness({ snapshot, policy, now: NOW, degraded: true })).toBe('stale');
+  });
+});
+
+describe('mutation guard', () => {
+  it('permits mutations only on current data', () => {
+    expect(canMutate('current')).toBe(true);
+    for (const state of ['stale', 'partial', 'unknown', 'unavailable'] as const) {
+      expect(canMutate(state)).toBe(false);
+    }
+  });
+
+  it('refuses mutations on non-current data via assertMutable', () => {
+    expect(() => assertMutable('current')).not.toThrow();
+    for (const state of ['stale', 'partial', 'unknown', 'unavailable'] as const) {
+      let thrown: unknown;
+      try {
+        assertMutable(state);
+      } catch (caught) {
+        thrown = caught;
+      }
+      expect(thrown).toBeInstanceOf(StaleMutationError);
+      expect(thrown).toBeInstanceOf(Error);
+      if (thrown instanceof StaleMutationError) {
+        expect(thrown.name).toBe('StaleMutationError');
+        expect(thrown.freshness).toBe(state);
+        expect(thrown.message).toContain(state);
+        expect(thrown.message).toContain('revalidat');
+      }
+    }
+  });
+});
+
+describe('acceptSnapshot', () => {
+  it('accepts a valid payload with provenance', () => {
+    const result = acceptSnapshot({
+      value: taskPayload,
+      validate: validateTaskCollection,
+      previous: null,
+      policy,
+      source: 'gateway:/api/tasks',
+      now: NOW,
+    });
+    expect(result.outcome).toBe('accepted');
+    if (result.outcome !== 'accepted') return;
+    expect(result.snapshot.source).toBe('gateway:/api/tasks');
+    expect(result.snapshot.version).toBe(1);
+    expect(result.snapshot.fetchedAt).toBe(NOW);
+    expect(result.snapshot.data).toEqual(taskPayload);
+  });
+
+  it('invalidates a schema-mismatched payload instead of rendering it', () => {
+    const result = acceptSnapshot({
+      value: { not: 'an array' },
+      validate: validateTaskCollection,
+      previous: acceptedTaskSnapshot(),
+      policy,
+      source: 'gateway:/api/tasks',
+      now: NOW,
+    });
+    expect(result).toEqual({ outcome: 'invalidated', reason: 'schema-mismatch' });
+    expect(invalidationReasonLabels['schema-mismatch']).toContain('schema');
+  });
+
+  it('invalidates cross-workspace payloads', () => {
+    const userOne = acceptSnapshot({
+      value: [
+        {
+          id: 'p1',
+          name: 'P1',
+          description: null,
+          status: 'active',
+          userId: 'user-1',
+          metadata: null,
+          createdAt: '2026-08-01T00:00:00.000Z',
+          updatedAt: '2026-08-01T00:00:00.000Z',
+        },
+      ],
+      validate: validateProjectCollection,
+      previous: null,
+      policy,
+      source: 'gateway:/api/projects',
+      now: NOW,
+    });
+    if (userOne.outcome !== 'accepted') throw new Error('expected acceptance');
+
+    const switched = acceptSnapshot({
+      value: [
+        {
+          id: 'p9',
+          name: 'P9',
+          description: null,
+          status: 'active',
+          userId: 'user-2',
+          metadata: null,
+          createdAt: '2026-08-01T00:00:00.000Z',
+          updatedAt: '2026-08-01T00:00:00.000Z',
+        },
+      ],
+      validate: validateProjectCollection,
+      previous: userOne.snapshot,
+      policy,
+      source: 'gateway:/api/projects',
+      now: NOW,
+    });
+    expect(switched).toEqual({ outcome: 'invalidated', reason: 'cross-workspace' });
+  });
+
+  it('keeps the previous workspace for collections with no intrinsic identity', () => {
+    const userOne = acceptSnapshot({
+      value: [
+        {
+          id: 'p1',
+          name: 'P1',
+          description: null,
+          status: 'active',
+          userId: 'user-1',
+          metadata: null,
+          createdAt: '2026-08-01T00:00:00.000Z',
+          updatedAt: '2026-08-01T00:00:00.000Z',
+        },
+      ],
+      validate: validateProjectCollection,
+      previous: null,
+      policy,
+      source: 'gateway:/api/projects',
+      now: NOW,
+    });
+    if (userOne.outcome !== 'accepted') throw new Error('expected acceptance');
+
+    // Empty list after the user deleted every project: no identity to check,
+    // so the verified scope is retained and the empty state stays healthy.
+    const emptied = acceptSnapshot({
+      value: [],
+      validate: validateProjectCollection,
+      previous: userOne.snapshot,
+      policy,
+      source: 'gateway:/api/projects',
+      now: NOW,
+    });
+    expect(emptied.outcome).toBe('accepted');
+    if (emptied.outcome === 'accepted') {
+      expect(emptied.snapshot.data).toEqual([]);
+      expect(emptied.snapshot.workspace).toBe('user-1');
+    }
+  });
+
+  it('invalidates version regressions', () => {
+    const previous = acceptedTaskSnapshot({ version: 7 });
+    const regressed = acceptSnapshot({
+      value: taskPayload,
+      validate: validateTaskCollection,
+      previous,
+      policy,
+      source: 'gateway:/api/tasks',
+      now: NOW,
+      incomingVersion: 3,
+    });
+    expect(regressed).toEqual({ outcome: 'invalidated', reason: 'version-regression' });
+
+    const newerSchema = acceptedTaskSnapshot({ schemaVersion: 4 });
+    const downgradedClient = acceptSnapshot({
+      value: taskPayload,
+      validate: validateTaskCollection,
+      previous: newerSchema,
+      policy: { ...policy, schemaVersion: 2 },
+      source: 'gateway:/api/tasks',
+      now: NOW,
+    });
+    expect(downgradedClient).toEqual({ outcome: 'invalidated', reason: 'version-regression' });
+  });
+
+  it('increments the version monotonically across accepted snapshots', () => {
+    const first = acceptedTaskSnapshot();
+    const second = acceptSnapshot({
+      value: taskPayload,
+      validate: validateTaskCollection,
+      previous: first,
+      policy,
+      source: 'gateway:/api/tasks',
+      now: NOW,
+    });
+    expect(second.outcome).toBe('accepted');
+    if (second.outcome === 'accepted') {
+      expect(second.snapshot.version).toBe(first.version + 1);
+    }
+  });
+});
+
+describe('combineFreshness', () => {
+  it('gates the surface on the primary collection', () => {
+    expect(combineFreshness('unavailable', ['current'])).toBe('unavailable');
+    expect(combineFreshness('unknown', ['current'])).toBe('unknown');
+    expect(combineFreshness('current', [])).toBe('current');
+  });
+
+  it('degrades to partial when a secondary is unavailable', () => {
+    expect(combineFreshness('current', ['current', 'unavailable'])).toBe('partial');
+  });
+
+  it('degrades to unknown while a secondary is still loading', () => {
+    expect(combineFreshness('current', ['unknown'])).toBe('unknown');
+  });
+
+  it('degrades to stale when any collection is stale', () => {
+    expect(combineFreshness('current', ['stale'])).toBe('stale');
+    expect(combineFreshness('stale', ['current'])).toBe('stale');
+  });
+
+  it('propagates partial secondaries', () => {
+    expect(combineFreshness('current', ['partial'])).toBe('partial');
+  });
+});
+
+describe('computeDigest', () => {
+  it('is stable across key order and changes with data', () => {
+    const a = computeDigest({ x: 1, y: [1, 2] });
+    const b = computeDigest({ y: [1, 2], x: 1 });
+    expect(a).toBe(b);
+    expect(computeDigest({ x: 1, y: [1, 3] })).not.toBe(a);
+  });
+});
+
+describe('verdictValue', () => {
+  it('returns the value only for verified inputs', () => {
+    expect(verdictValue(true, '5')).toBe('5');
+    expect(verdictValue(false, '5')).toBe(UNKNOWN_VERDICT);
+    expect(verdictValue(false, '5')).not.toBe('5');
+  });
+});
+
+describe('formatAge', () => {
+  it('labels age in human terms', () => {
+    expect(formatAge(NOW, NOW)).toBe('just now');
+    expect(formatAge(NOW, NOW + 15_000)).toBe('under a minute ago');
+    expect(formatAge(NOW, NOW + 120_000)).toBe('2m ago');
+    expect(formatAge(NOW, NOW + 3 * 3_600_000)).toBe('3h ago');
+    expect(formatAge(NOW, NOW + 2 * 86_400_000)).toBe('2d ago');
+  });
+});

apps/web/src/lib/freshness/model.ts

@@ -0,0 +1,261 @@
+/**
+ * Typed freshness model for gateway-fetched collections (RI-5-001).
+ *
+ * A failed or stale fetch must never be indistinguishable from an empty
+ * healthy collection. Every fetched surface carries an explicit freshness
+ * state, a verified snapshot identity (source, workspace, version, age), and
+ * a mutation guard that refuses state-changing operations unless the data is
+ * verified current.
+ */
+
+/** Freshness states for fetched data. Never inferred from emptiness. */
+export type FreshnessState = 'current' | 'stale' | 'partial' | 'unknown' | 'unavailable';
+
+/**
+ * Reasons a snapshot is invalidated. An invalidated snapshot is treated as
+ * unavailable and is never rendered as current.
+ */
+export type InvalidationReason =
+  | 'cache-corruption'
+  | 'cross-workspace'
+  | 'schema-mismatch'
+  | 'version-regression';
+
+/** Human-readable labels for invalidation reasons (UI + error messages). */
+export const invalidationReasonLabels: Record<InvalidationReason, string> = {
+  'cache-corruption': 'cached snapshot failed integrity checks',
+  'cross-workspace': 'data belongs to a different workspace',
+  'schema-mismatch': 'response did not match the expected schema',
+  'version-regression': 'snapshot version regressed below the accepted version',
+};
+
+/** A verified snapshot of fetched data with full provenance. */
+export interface FreshSnapshot<T> {
+  readonly data: T;
+  /** Source identity of the fetch, e.g. `gateway:/api/tasks`. */
+  readonly source: string;
+  /** Workspace scope the data belongs to. */
+  readonly workspace: string;
+  /** Monotonic snapshot sequence number for this surface. */
+  readonly version: number;
+  /** Schema version of the validator that accepted this snapshot. */
+  readonly schemaVersion: number;
+  /** Epoch ms at which the data was verified. */
+  readonly fetchedAt: number;
+  /** Integrity digest of `data`, used to detect cache corruption. */
+  readonly digest: string;
+}
+
+/** Provenance label rendered next to last-known data. */
+export interface FreshnessLabel {
+  readonly source: string;
+  readonly version: number;
+  readonly fetchedAt: number;
+}
+
+/** Policy governing freshness for a surface. */
+export interface FreshnessPolicy {
+  /** Active workspace scope. Snapshots from other scopes are invalidated. */
+  readonly workspace: string;
+  /** Schema version of the current validator. */
+  readonly schemaVersion: number;
+  /** Age after which a verified snapshot degrades from current to stale. */
+  readonly staleAfterMs: number;
+}
+
+export const DEFAULT_FRESHNESS_POLICY: FreshnessPolicy = {
+  workspace: 'default',
+  schemaVersion: 1,
+  staleAfterMs: 60_000,
+};
+
+/** Payload returned by a successful schema validation. */
+export interface FreshPayload<T> {
+  readonly data: T;
+  /**
+   * Workspace identity extracted from the payload itself when the collection
+   * carries one (e.g. a uniform `userId` on projects). `null` when the
+   * collection has no intrinsic workspace identity.
+   */
+  readonly workspace: string | null;
+}
+
+/** Error thrown when a mutation is attempted on non-current data. */
+export class StaleMutationError extends Error {
+  readonly freshness: FreshnessState;
+
+  constructor(freshness: FreshnessState) {
+    super(`Refused mutation on ${freshness} data: revalidation is required before mutating.`);
+    this.name = 'StaleMutationError';
+    this.freshness = freshness;
+  }
+}
+
+/** Stable JSON digest used for snapshot integrity checks. */
+export function computeDigest(value: unknown): string {
+  // FNV-1a 32-bit over the stable JSON serialization. This is an integrity
+  // check against corruption, not a cryptographic guarantee.
+  let hash = 0x811c9dc5;
+  for (const byte of stableStringify(value)) {
+    hash ^= byte.charCodeAt(0);
+    hash = Math.imul(hash, 0x01000193) >>> 0;
+  }
+  return hash.toString(16).padStart(8, '0');
+}
+
+function stableStringify(value: unknown): string {
+  return serialize(value);
+}
+
+function serialize(value: unknown): string {
+  if (value === null || typeof value !== 'object') return JSON.stringify(value) ?? 'null';
+  if (Array.isArray(value)) return `[${value.map(serialize).join(',')}]`;
+  const entries = Object.entries(value as Record<string, unknown>)
+    .filter(([, item]) => item !== undefined)
+    .sort(([left], [right]) => (left < right ? -1 : left > right ? 1 : 0))
+    .map(([key, item]) => `${JSON.stringify(key)}:${serialize(item)}`);
+  return `{${entries.join(',')}}`;
+}
+
+export type AcceptSnapshotResult<T> =
+  | { readonly outcome: 'accepted'; readonly snapshot: FreshSnapshot<T> }
+  | { readonly outcome: 'invalidated'; readonly reason: InvalidationReason };
+
+export interface AcceptSnapshotOptions<T> {
+  /** Raw fetched value (untrusted JSON). */
+  readonly value: unknown;
+  /** Schema validator; returns `null` when the value does not match. */
+  readonly validate: (value: unknown) => FreshPayload<T> | null;
+  /** Previously accepted snapshot for this surface, if any. */
+  readonly previous: FreshSnapshot<T> | null;
+  readonly policy: FreshnessPolicy;
+  readonly source: string;
+  /**
+   * Version carried by the incoming payload when the transport exposes one.
+   * Must not regress below the accepted snapshot's version.
+   */
+  readonly incomingVersion?: number;
+  readonly now: number;
+}
+
+/**
+ * Validate and accept a fetched value as a snapshot, or invalidate it.
+ *
+ * Invalidation rules (each treated as unavailable, never rendered current):
+ * - schema mismatch: the payload fails validation
+ * - cross-workspace: the payload's workspace differs from the verified one
+ * - version regression: payload/schema version is below the accepted one
+ */
+export function acceptSnapshot<T>(options: AcceptSnapshotOptions<T>): AcceptSnapshotResult<T> {
+  const payload = options.validate(options.value);
+  if (payload === null) {
+    return { outcome: 'invalidated', reason: 'schema-mismatch' };
+  }
+
+  // Workspace identity: the payload's own scope wins; a collection with no
+  // intrinsic identity (e.g. an empty list after every project was deleted)
+  // keeps the previously verified scope rather than resetting to the policy
+  // default, so a legitimately empty response is not mistaken for a scope
+  // change.
+  const workspace = payload.workspace ?? options.previous?.workspace ?? options.policy.workspace;
+  if (options.previous !== null && options.previous.workspace !== workspace) {
+    return { outcome: 'invalidated', reason: 'cross-workspace' };
+  }
+  if (options.previous !== null && options.policy.schemaVersion < options.previous.schemaVersion) {
+    return { outcome: 'invalidated', reason: 'version-regression' };
+  }
+  if (
+    options.incomingVersion !== undefined &&
+    options.previous !== null &&
+    options.incomingVersion < options.previous.version
+  ) {
+    return { outcome: 'invalidated', reason: 'version-regression' };
+  }
+
+  const snapshot: FreshSnapshot<T> = {
+    data: payload.data,
+    source: options.source,
+    workspace,
+    version: options.incomingVersion ?? (options.previous?.version ?? 0) + 1,
+    schemaVersion: options.policy.schemaVersion,
+    fetchedAt: options.now,
+    digest: computeDigest(payload.data),
+  };
+  return { outcome: 'accepted', snapshot };
+}
+
+export interface ComputeFreshnessOptions {
+  readonly snapshot: FreshSnapshot<unknown> | null;
+  readonly policy: FreshnessPolicy;
+  readonly now: number;
+  /**
+   * True when the snapshot cannot be trusted as current regardless of age:
+   * the latest revalidation failed, or the snapshot was restored from cache
+   * and has not been verified by a fetch in this session.
+   */
+  readonly degraded?: boolean;
+}
+
+/**
+ * Compute the freshness state of a snapshot. A missing snapshot is
+ * `unavailable` (never "empty and healthy"); a degraded or aged snapshot is
+ * `stale` (situational awareness only).
+ */
+export function computeFreshness(options: ComputeFreshnessOptions): FreshnessState {
+  const { snapshot, policy, now, degraded = false } = options;
+  if (snapshot === null) return 'unavailable';
+  if (degraded) return 'stale';
+  if (now - snapshot.fetchedAt > policy.staleAfterMs) return 'stale';
+  return 'current';
+}
+
+/** Only verified-current data may back a state-changing action. */
+export function canMutate(state: FreshnessState): boolean {
+  return state === 'current';
+}
+
+/** Defense in depth: reject the mutation call itself on non-current data. */
+export function assertMutable(state: FreshnessState): void {
+  if (!canMutate(state)) {
+    throw new StaleMutationError(state);
+  }
+}
+
+/**
+ * Combine freshness across a multi-collection surface (primary + secondaries).
+ * The primary collection gates the surface: unknown while it loads,
+ * unavailable when it fails. Missing secondaries degrade the surface to
+ * `partial`; aged collections degrade it to `stale`.
+ */
+export function combineFreshness(
+  primary: FreshnessState,
+  secondaries: readonly FreshnessState[],
+): FreshnessState {
+  if (primary === 'unavailable') return 'unavailable';
+  if (primary === 'unknown') return 'unknown';
+  if (secondaries.includes('unavailable')) return 'partial';
+  if (secondaries.includes('unknown')) return 'unknown';
+  if (secondaries.includes('stale') || primary === 'stale') return 'stale';
+  if (secondaries.includes('partial')) return 'partial';
+  return 'current';
+}
+
+/** Render-safe age label for snapshot provenance. */
+export function formatAge(fetchedAt: number, now: number): string {
+  const ageMs = Math.max(0, now - fetchedAt);
+  if (ageMs < 10_000) return 'just now';
+  const minutes = Math.floor(ageMs / 60_000);
+  if (minutes < 1) return 'under a minute ago';
+  if (minutes < 60) return `${minutes}m ago`;
+  const hours = Math.floor(minutes / 60);
+  if (hours < 24) return `${hours}h ago`;
+  const days = Math.floor(hours / 24);
+  return `${days}d ago`;
+}
+
+/** Derived verdict placeholder for non-current inputs — never a green value. */
+export const UNKNOWN_VERDICT = '?';
+
+export function verdictValue(verified: boolean, value: string): string {
+  return verified ? value : UNKNOWN_VERDICT;
+}

apps/web/src/lib/freshness/snapshot-cache.spec.ts

@@ -0,0 +1,197 @@
+import { afterEach, beforeEach, describe, expect, it } from 'vitest';
+import { acceptSnapshot, DEFAULT_FRESHNESS_POLICY } from './model';
+import { clearSnapshotCache, readSnapshotCache, writeSnapshotCache } from './snapshot-cache';
+import { validateProjectCollection, validateTaskCollection } from './validators';
+import { projectFixtures, taskFixtures } from '@/spa/pages/page-fixtures';
+import type { Project, Task } from '@/lib/types';
+
+const KEY = 'test:tasks';
+const NOW = 1_800_000_000_000;
+const policy = { ...DEFAULT_FRESHNESS_POLICY, staleAfterMs: 60_000 };
+
+function storedTaskSnapshot() {
+  const result = acceptSnapshot({
+    value: taskFixtures,
+    validate: validateTaskCollection,
+    previous: null,
+    policy,
+    source: 'gateway:/api/tasks',
+    now: NOW,
+  });
+  if (result.outcome !== 'accepted') throw new Error('fixture setup failed');
+  return result.snapshot;
+}
+
+function storedProjectSnapshot() {
+  const result = acceptSnapshot({
+    value: projectFixtures,
+    validate: validateProjectCollection,
+    previous: null,
+    policy,
+    source: 'gateway:/api/projects',
+    now: NOW,
+  });
+  if (result.outcome !== 'accepted') throw new Error('fixture setup failed');
+  return result.snapshot;
+}
+
+function readTasks() {
+  return readSnapshotCache({
+    key: KEY,
+    workspace: policy.workspace,
+    policy,
+    validate: validateTaskCollection,
+  });
+}
+
+/** Write an arbitrary value directly at the raw cache slot. */
+function writeRaw(key: string, value: unknown): void {
+  sessionStorage.setItem(`mosaic:freshness:v1:${key}`, JSON.stringify(value));
+}
+
+/** Parse and re-write the stored entry (for tampering with internals). */
+function tamperStored<T>(key: string, mutate: (stored: T) => void): void {
+  const parsed = JSON.parse(sessionStorage.getItem(`mosaic:freshness:v1:${key}`) ?? '{}') as T;
+  mutate(parsed);
+  writeRaw(key, parsed);
+}
+
+beforeEach(() => {
+  sessionStorage.clear();
+});
+
+afterEach(() => {
+  sessionStorage.clear();
+});
+
+describe('readSnapshotCache', () => {
+  it('misses when nothing is stored', () => {
+    expect(readTasks()).toEqual({ outcome: 'miss' });
+  });
+
+  it('hits for a well-formed entry and preserves provenance', () => {
+    const snapshot = storedTaskSnapshot();
+    writeSnapshotCache(KEY, snapshot);
+
+    const result = readTasks();
+    expect(result.outcome).toBe('hit');
+    if (result.outcome === 'hit') {
+      expect(result.snapshot.data).toEqual(taskFixtures);
+      expect(result.snapshot.source).toBe('gateway:/api/tasks');
+      expect(result.snapshot.version).toBe(snapshot.version);
+      expect(result.snapshot.fetchedAt).toBe(snapshot.fetchedAt);
+      expect(result.snapshot.workspace).toBe(snapshot.workspace);
+    }
+  });
+
+  it('invalidates unparsable entries as cache corruption', () => {
+    sessionStorage.setItem(`mosaic:freshness:v1:${KEY}`, '{not json');
+    expect(readTasks()).toEqual({ outcome: 'invalidated', reason: 'cache-corruption' });
+  });
+
+  it('invalidates structurally wrong entries as cache corruption', () => {
+    const malformed: unknown[] = [
+      'nested but not a snapshot',
+      { data: taskFixtures }, // missing provenance fields
+      {
+        data: taskFixtures,
+        source: 1,
+        workspace: 'w',
+        version: 1,
+        schemaVersion: 1,
+        fetchedAt: 1,
+        digest: 'x',
+      },
+      null,
+      17,
+    ];
+    for (const entry of malformed) {
+      writeRaw(KEY, entry);
+      expect(readTasks()).toEqual({ outcome: 'invalidated', reason: 'cache-corruption' });
+    }
+  });
+
+  it('invalidates digest mismatches as cache corruption (tampered data)', () => {
+    writeSnapshotCache(KEY, storedTaskSnapshot());
+    tamperStored<{ data: Task[] }>(KEY, (stored) => {
+      stored.data = [...stored.data, { ...stored.data[0]!, id: 'injected-task' }];
+    });
+    expect(readTasks()).toEqual({ outcome: 'invalidated', reason: 'cache-corruption' });
+  });
+
+  it('invalidates entries scoped to another workspace', () => {
+    const snapshot = storedTaskSnapshot();
+    writeSnapshotCache(KEY, { ...snapshot, workspace: 'someone-else' });
+    expect(readTasks()).toEqual({ outcome: 'invalidated', reason: 'cross-workspace' });
+  });
+
+  it('invalidates entries written by a newer schema as a version regression', () => {
+    const snapshot = storedTaskSnapshot();
+    writeSnapshotCache(KEY, { ...snapshot, schemaVersion: policy.schemaVersion + 1 });
+    expect(readTasks()).toEqual({ outcome: 'invalidated', reason: 'version-regression' });
+  });
+
+  it('invalidates entries whose data no longer validates (schema mismatch)', () => {
+    writeSnapshotCache(KEY, storedTaskSnapshot());
+    tamperStored<{ data: unknown }>(KEY, (stored) => {
+      stored.data = { malformed: true };
+    });
+    expect(readTasks()).toEqual({ outcome: 'invalidated', reason: 'schema-mismatch' });
+  });
+
+  it('never reports a corrupted raw entry as a hit (negative control)', () => {
+    for (const raw of ['{oops', 'null', '"string"', '[]', '12']) {
+      sessionStorage.setItem(`mosaic:freshness:v1:${KEY}`, raw);
+      const result = readTasks();
+      expect(result.outcome).not.toBe('hit');
+      expect(result.outcome).toBe('invalidated');
+    }
+  });
+
+  it('scopes project collections by their workspace identity', () => {
+    const snapshot = storedProjectSnapshot();
+    writeSnapshotCache('test:projects', snapshot);
+
+    const sameScope = readSnapshotCache({
+      key: 'test:projects',
+      workspace: 'user-1',
+      policy,
+      validate: validateProjectCollection,
+    });
+    expect(sameScope.outcome).toBe('hit');
+
+    const foreignScope = readSnapshotCache({
+      key: 'test:projects',
+      workspace: 'user-2',
+      policy,
+      validate: validateProjectCollection,
+    });
+    expect(foreignScope).toEqual({ outcome: 'invalidated', reason: 'cross-workspace' });
+  });
+});
+
+describe('writeSnapshotCache round-trip', () => {
+  it('round-trips an accepted project snapshot', () => {
+    const snapshot = storedProjectSnapshot();
+    writeSnapshotCache('test:projects', snapshot);
+    const result = readSnapshotCache({
+      key: 'test:projects',
+      workspace: snapshot.workspace,
+      policy,
+      validate: validateProjectCollection,
+    });
+    expect(result.outcome).toBe('hit');
+    if (result.outcome === 'hit') {
+      expect(result.snapshot.data).toEqual(projectFixtures as Project[]);
+    }
+  });
+});
+
+describe('clearSnapshotCache', () => {
+  it('drops the entry so the next read misses', () => {
+    writeSnapshotCache(KEY, storedTaskSnapshot());
+    expect(readTasks().outcome).toBe('hit');
+    clearSnapshotCache(KEY);
+    expect(readTasks()).toEqual({ outcome: 'miss' });
+  });
+});

apps/web/src/lib/freshness/snapshot-cache.ts

@@ -0,0 +1,154 @@
+import {
+  computeDigest,
+  type FreshPayload,
+  type FreshSnapshot,
+  type FreshnessPolicy,
+  type InvalidationReason,
+} from './model';
+
+/**
+ * Session-scoped last-known snapshot cache (RI-5-001).
+ *
+ * Restored snapshots are situational awareness only: they surface as `stale`
+ * until a fetch re-verifies them. A cache entry that is corrupted, belongs to
+ * another workspace, was written by a newer schema, or no longer validates is
+ * invalidated (treated as unavailable, never rendered as current).
+ */
+
+const CACHE_PREFIX = 'mosaic:freshness:v1';
+
+interface StoredSnapshot {
+  data: unknown;
+  source: string;
+  workspace: string;
+  version: number;
+  schemaVersion: number;
+  fetchedAt: number;
+  digest: string;
+}
+
+export type SnapshotCacheRead<T> =
+  | { readonly outcome: 'hit'; readonly snapshot: FreshSnapshot<T> }
+  | { readonly outcome: 'miss' }
+  | { readonly outcome: 'invalidated'; readonly reason: InvalidationReason };
+
+export interface ReadSnapshotCacheOptions<T> {
+  readonly key: string;
+  readonly workspace: string;
+  readonly policy: FreshnessPolicy;
+  readonly validate: (value: unknown) => FreshPayload<T> | null;
+}
+
+function cacheKey(key: string): string {
+  return `${CACHE_PREFIX}:${key}`;
+}
+
+function isStoredSnapshot(value: unknown): value is StoredSnapshot {
+  if (typeof value !== 'object' || value === null) return false;
+  const candidate = value as Record<string, unknown>;
+  return (
+    typeof candidate['data'] === 'object' &&
+    candidate['data'] !== null &&
+    typeof candidate['source'] === 'string' &&
+    typeof candidate['workspace'] === 'string' &&
+    typeof candidate['version'] === 'number' &&
+    typeof candidate['schemaVersion'] === 'number' &&
+    typeof candidate['fetchedAt'] === 'number' &&
+    typeof candidate['digest'] === 'string'
+  );
+}
+
+function getStorage(): Storage | null {
+  try {
+    return globalThis.sessionStorage ?? null;
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * Restore a cached snapshot under the active workspace scope. Every failure
+ * mode maps to an explicit invalidation reason or a miss — never to data
+ * that renders as current.
+ */
+export function readSnapshotCache<T>(options: ReadSnapshotCacheOptions<T>): SnapshotCacheRead<T> {
+  const storage = getStorage();
+  if (storage === null) return { outcome: 'miss' };
+
+  let raw: string | null;
+  try {
+    raw = storage.getItem(cacheKey(options.key));
+  } catch {
+    return { outcome: 'miss' };
+  }
+  if (raw === null) return { outcome: 'miss' };
+
+  let parsed: unknown;
+  try {
+    parsed = JSON.parse(raw);
+  } catch {
+    return { outcome: 'invalidated', reason: 'cache-corruption' };
+  }
+  if (!isStoredSnapshot(parsed)) {
+    return { outcome: 'invalidated', reason: 'cache-corruption' };
+  }
+  if (parsed.workspace !== options.workspace) {
+    return { outcome: 'invalidated', reason: 'cross-workspace' };
+  }
+  if (parsed.schemaVersion > options.policy.schemaVersion) {
+    // Written by a newer build than the running client: version regression.
+    return { outcome: 'invalidated', reason: 'version-regression' };
+  }
+
+  const payload = options.validate(parsed.data);
+  if (payload === null) {
+    return { outcome: 'invalidated', reason: 'schema-mismatch' };
+  }
+  if (computeDigest(payload.data) !== parsed.digest) {
+    return { outcome: 'invalidated', reason: 'cache-corruption' };
+  }
+
+  return {
+    outcome: 'hit',
+    snapshot: {
+      data: payload.data,
+      source: parsed.source,
+      workspace: parsed.workspace,
+      version: parsed.version,
+      schemaVersion: parsed.schemaVersion,
+      fetchedAt: parsed.fetchedAt,
+      digest: parsed.digest,
+    },
+  };
+}
+
+/** Persist a verified snapshot. Failures are non-fatal (cache is best-effort). */
+export function writeSnapshotCache<T>(key: string, snapshot: FreshSnapshot<T>): void {
+  const storage = getStorage();
+  if (storage === null) return;
+  const stored: StoredSnapshot = {
+    data: snapshot.data,
+    source: snapshot.source,
+    workspace: snapshot.workspace,
+    version: snapshot.version,
+    schemaVersion: snapshot.schemaVersion,
+    fetchedAt: snapshot.fetchedAt,
+    digest: snapshot.digest,
+  };
+  try {
+    storage.setItem(cacheKey(key), JSON.stringify(stored));
+  } catch {
+    // Quota or serialization failures simply skip caching.
+  }
+}
+
+/** Drop a cached snapshot (used when a surface invalidates its cache entry). */
+export function clearSnapshotCache(key: string): void {
+  const storage = getStorage();
+  if (storage === null) return;
+  try {
+    storage.removeItem(cacheKey(key));
+  } catch {
+    // Ignorable: a wedged storage entry is detected as corruption on read.
+  }
+}

apps/web/src/lib/freshness/use-fresh-collection.spec.tsx

@@ -0,0 +1,372 @@
+import { act } from 'react';
+import { createRoot, type Root } from 'react-dom/client';
+import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from 'vitest';
+import type { Task } from '@/lib/types';
+import { acceptSnapshot, StaleMutationError, DEFAULT_FRESHNESS_POLICY } from './model';
+import type { FreshnessFailure } from './use-fresh-collection';
+import {
+  describeFailure,
+  useFreshCollection,
+  type FreshCollection,
+  type UseFreshCollectionOptions,
+} from './use-fresh-collection';
+import { validateProjectCollection, validateTaskCollection } from './validators';
+import { projectFixtures, taskFixtures } from '@/spa/pages/page-fixtures';
+
+/**
+ * Failure-matrix coverage for the freshness seam (RI-5-001): network failure,
+ * auth failure, malformed response, cache corruption, stale age, schema
+ * mismatch, cross-workspace, recovery, and stale-action rejection — with
+ * negative controls proving no case yields current data or an enabled
+ * mutation.
+ */
+
+const NOW = 1_800_000_000_000;
+
+interface Deferred<T> {
+  promise: Promise<T>;
+  resolve: (value: T) => void;
+  reject: (reason?: unknown) => void;
+}
+
+function createDeferred<T>(): Deferred<T> {
+  let resolve!: (value: T) => void;
+  let reject!: (reason?: unknown) => void;
+  const promise = new Promise<T>((res, rej) => {
+    resolve = res;
+    reject = rej;
+  });
+  return { promise, resolve, reject };
+}
+
+let root: Root | null = null;
+let container: HTMLDivElement;
+let latest: FreshCollection<Task[]> | null = null;
+
+function Probe({
+  options,
+}: {
+  options: UseFreshCollectionOptions<Task[]>;
+}): React.ReactElement | null {
+  latest = useFreshCollection<Task[]>(options);
+  return null;
+}
+
+beforeAll(() => {
+  Object.defineProperty(globalThis, 'IS_REACT_ACT_ENVIRONMENT', {
+    configurable: true,
+    value: true,
+  });
+});
+
+beforeEach(() => {
+  sessionStorage.clear();
+});
+
+afterEach(async () => {
+  await act(async () => {
+    root?.unmount();
+  });
+  document.body.replaceChildren();
+  root = null;
+  latest = null;
+  sessionStorage.clear();
+  vi.restoreAllMocks();
+});
+
+async function renderCollection(
+  options: UseFreshCollectionOptions<Task[]>,
+): Promise<FreshCollection<Task[]>> {
+  container = document.createElement('div');
+  document.body.append(container);
+  root = createRoot(container);
+  await act(async () => {
+    root?.render(<Probe options={options} />);
+  });
+  if (latest === null) throw new Error('hook did not run');
+  return latest;
+}
+
+function taskOptions(
+  overrides: Partial<UseFreshCollectionOptions<Task[]>> = {},
+): UseFreshCollectionOptions<Task[]> {
+  return {
+    source: 'gateway:/api/tasks',
+    fetcher: () => Promise.resolve(taskFixtures),
+    validate: validateTaskCollection,
+    cacheKey: 'tasks',
+    clock: () => NOW,
+    ...overrides,
+  };
+}
+
+function authError(statusCode: number): Error & { statusCode: number } {
+  return Object.assign(new Error(`Request failed with ${statusCode}`), { statusCode });
+}
+
+function seedCache(key: string): number {
+  const result = acceptSnapshot({
+    value: taskFixtures,
+    validate: validateTaskCollection,
+    previous: null,
+    policy: DEFAULT_FRESHNESS_POLICY,
+    source: 'gateway:/api/tasks',
+    now: NOW,
+  });
+  if (result.outcome !== 'accepted') throw new Error('fixture setup failed');
+  sessionStorage.setItem(`mosaic:freshness:v1:${key}`, JSON.stringify({ ...result.snapshot }));
+  return result.snapshot.version;
+}
+
+describe('useFreshCollection failure matrix', () => {
+  it('is unknown (not empty) while the first validation is in flight', async () => {
+    const deferred = createDeferred<Task[]>();
+    const collection = await renderCollection(taskOptions({ fetcher: () => deferred.promise }));
+
+    expect(collection.freshness).toBe('unknown');
+    expect(collection.validating).toBe(true);
+    expect(collection.data).toBeNull();
+    expect(collection.canMutate).toBe(false);
+
+    await act(async () => {
+      deferred.resolve(taskFixtures);
+      await deferred.promise;
+    });
+  });
+
+  it('becomes current with provenance after a verified fetch', async () => {
+    const collection = await renderCollection(taskOptions());
+
+    expect(collection.freshness).toBe('current');
+    expect(collection.data).toEqual(taskFixtures);
+    expect(collection.snapshot?.source).toBe('gateway:/api/tasks');
+    expect(collection.snapshot?.version).toBe(1);
+    expect(collection.failure).toBeNull();
+    expect(collection.canMutate).toBe(true);
+    // Verified snapshot is persisted for last-known restore.
+    expect(sessionStorage.getItem('mosaic:freshness:v1:tasks')).toBeTruthy();
+  });
+
+  it('treats a network failure as unavailable — never an empty healthy collection', async () => {
+    const collection = await renderCollection(
+      taskOptions({ fetcher: () => Promise.reject(new Error('network down')) }),
+    );
+
+    expect(collection.freshness).toBe('unavailable');
+    expect(collection.data).toBeNull();
+    expect(collection.failure).toEqual({ kind: 'fetch', message: 'network down' });
+    expect(collection.canMutate).toBe(false);
+    expect(describeFailure(collection.failure)).toBe('network down');
+  });
+
+  it('treats an auth failure as unavailable and drops the last-known snapshot', async () => {
+    let call = 0;
+    const collection = await renderCollection(
+      taskOptions({
+        fetcher: () => {
+          call += 1;
+          return call === 1 ? Promise.resolve(taskFixtures) : Promise.reject(authError(401));
+        },
+      }),
+    );
+    expect(collection.freshness).toBe('current');
+
+    await act(async () => {
+      await collection.revalidate();
+    });
+
+    expect(latest?.freshness).toBe('unavailable');
+    expect(latest?.data).toBeNull();
+    expect(latest?.failure?.kind).toBe('fetch');
+    // The previous user's data must not linger in the session cache.
+    expect(sessionStorage.getItem('mosaic:freshness:v1:tasks')).toBeNull();
+  });
+
+  it('invalidates a malformed response as a schema mismatch', async () => {
+    const collection = await renderCollection(
+      taskOptions({ fetcher: () => Promise.resolve({ malformed: true }) }),
+    );
+
+    expect(collection.freshness).toBe('unavailable');
+    expect(collection.data).toBeNull();
+    expect(collection.failure).toEqual({ kind: 'invalidated', reason: 'schema-mismatch' });
+    expect(collection.canMutate).toBe(false);
+  });
+
+  it('keeps the previous snapshot as labeled stale when a later payload mismatches', async () => {
+    let call = 0;
+    const collection = await renderCollection(
+      taskOptions({
+        fetcher: () => {
+          call += 1;
+          return call === 1 ? Promise.resolve(taskFixtures) : Promise.resolve('garbage');
+        },
+      }),
+    );
+    expect(collection.freshness).toBe('current');
+
+    await act(async () => {
+      await collection.revalidate();
+    });
+
+    expect(latest?.freshness).toBe('stale');
+    expect(latest?.data).toEqual(taskFixtures);
+    expect(latest?.failure).toEqual({ kind: 'invalidated', reason: 'schema-mismatch' });
+    expect(latest?.canMutate).toBe(false);
+  });
+
+  it('drops the snapshot when the workspace changes under it (cross-workspace)', async () => {
+    let call = 0;
+    const collection = await renderCollection(
+      taskOptions({
+        fetcher: () => {
+          call += 1;
+          return Promise.resolve(
+            call === 1 ? projectFixtures : [{ ...projectFixtures[0], userId: 'user-2' }],
+          );
+        },
+        validate: validateProjectCollection as unknown as (value: unknown) => {
+          data: Task[];
+          workspace: string | null;
+        },
+        source: 'gateway:/api/projects',
+      }),
+    );
+    expect(collection.freshness).toBe('current');
+
+    await act(async () => {
+      await collection.revalidate();
+    });
+
+    expect(latest?.freshness).toBe('unavailable');
+    expect(latest?.data).toBeNull();
+    expect(latest?.failure).toEqual({ kind: 'invalidated', reason: 'cross-workspace' });
+  });
+
+  it('ages from current to stale and refuses mutations on stale data', async () => {
+    let fakeNow = NOW;
+    const collection = await renderCollection(
+      taskOptions({
+        clock: () => fakeNow,
+        policy: { staleAfterMs: 40 },
+        tickMs: 10,
+      }),
+    );
+    expect(collection.freshness).toBe('current');
+
+    // Age the snapshot past the policy and let the tick recompute.
+    fakeNow = NOW + 60;
+    await act(async () => {
+      await new Promise((resolve) => setTimeout(resolve, 25));
+    });
+
+    expect(latest?.freshness).toBe('stale');
+    expect(latest?.data).toEqual(taskFixtures);
+    expect(latest?.canMutate).toBe(false);
+
+    const operation = vi.fn(async () => 'result');
+    await expect(latest?.mutate(operation)).rejects.toBeInstanceOf(StaleMutationError);
+    expect(operation).not.toHaveBeenCalled();
+  });
+
+  it('recovers to current after a successful revalidation', async () => {
+    let call = 0;
+    const collection = await renderCollection(
+      taskOptions({
+        fetcher: () => {
+          call += 1;
+          return call === 1
+            ? Promise.reject(new Error('first attempt failed'))
+            : Promise.resolve(taskFixtures);
+        },
+      }),
+    );
+    expect(collection.freshness).toBe('unavailable');
+
+    await act(async () => {
+      await collection.revalidate();
+    });
+
+    expect(latest?.freshness).toBe('current');
+    expect(latest?.failure).toBeNull();
+
+    const operation = vi.fn(async (data: Task[]) => data.length);
+    await expect(latest?.mutate(operation)).resolves.toBe(taskFixtures.length);
+    expect(operation).toHaveBeenCalledOnce();
+  });
+
+  it('restores a cached snapshot as unverified stale data, then verifies it', async () => {
+    const seededVersion = seedCache('tasks');
+    const deferred = createDeferred<Task[]>();
+    const collection = await renderCollection(taskOptions({ fetcher: () => deferred.promise }));
+
+    // Restored data is situational awareness only: labeled stale, never
+    // current, and mutations are refused before verification.
+    expect(collection.freshness).toBe('stale');
+    expect(collection.data).toEqual(taskFixtures);
+    expect(collection.canMutate).toBe(false);
+    await expect(collection.mutate(vi.fn())).rejects.toBeInstanceOf(StaleMutationError);
+
+    await act(async () => {
+      deferred.resolve(taskFixtures);
+      await deferred.promise;
+    });
+
+    expect(latest?.freshness).toBe('current');
+    expect(latest?.snapshot?.version).toBe(seededVersion + 1);
+  });
+
+  it('never promotes corrupted cache data to current (cache corruption)', async () => {
+    sessionStorage.setItem('mosaic:freshness:v1:tasks', '{"data":');
+    const collection = await renderCollection(
+      taskOptions({ fetcher: () => Promise.reject(new Error('still down')) }),
+    );
+
+    expect(collection.freshness).toBe('unavailable');
+    expect(collection.data).toBeNull();
+    expect(collection.canMutate).toBe(false);
+    // The corrupted entry is dropped so it cannot come back.
+    expect(sessionStorage.getItem('mosaic:freshness:v1:tasks')).toBeNull();
+  });
+
+  it('refuses mutations while unknown or unavailable — the call itself, not just the button', async () => {
+    const deferred = createDeferred<Task[]>();
+    const unknown = await renderCollection(taskOptions({ fetcher: () => deferred.promise }));
+    const operation = vi.fn(async () => 'result');
+    await expect(unknown.mutate(operation)).rejects.toBeInstanceOf(StaleMutationError);
+    expect(operation).not.toHaveBeenCalled();
+    await act(async () => {
+      deferred.reject(new Error('failed'));
+      await deferred.promise.catch(() => undefined);
+    });
+
+    const unavailable = latest!;
+    await expect(unavailable.mutate(operation)).rejects.toBeInstanceOf(StaleMutationError);
+    expect(operation).not.toHaveBeenCalled();
+    expect(unavailable.canMutate).toBe(false);
+  });
+
+  it('degrades to stale with last-known data when a revalidation fails after success', async () => {
+    let call = 0;
+    const collection = await renderCollection(
+      taskOptions({
+        fetcher: () => {
+          call += 1;
+          return call === 1
+            ? Promise.resolve(taskFixtures)
+            : Promise.reject(new Error('connection lost'));
+        },
+      }),
+    );
+    expect(collection.freshness).toBe('current');
+
+    await act(async () => {
+      await collection.revalidate();
+    });
+
+    expect(latest?.freshness).toBe('stale');
+    expect(latest?.data).toEqual(taskFixtures);
+    const failure: FreshnessFailure | null = latest?.failure ?? null;
+    expect(failure).toEqual({ kind: 'fetch', message: 'connection lost' });
+  });
+});

apps/web/src/lib/freshness/use-fresh-collection.ts

@@ -0,0 +1,281 @@
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import {
+  acceptSnapshot,
+  assertMutable,
+  computeFreshness,
+  DEFAULT_FRESHNESS_POLICY,
+  invalidationReasonLabels,
+  type FreshPayload,
+  type FreshSnapshot,
+  type FreshnessPolicy,
+  type FreshnessState,
+  type InvalidationReason,
+  StaleMutationError,
+} from './model';
+import { clearSnapshotCache, readSnapshotCache, writeSnapshotCache } from './snapshot-cache';
+
+/**
+ * Freshness-aware collection fetch hook (RI-5-001).
+ *
+ * One hook owns one gateway collection end to end: fetch, schema validation,
+ * snapshot acceptance with provenance, session-scoped last-known caching,
+ * aging, and the mutation guard. Pages consume `freshness` and never infer
+ * health from emptiness.
+ */
+
+/** Why the latest validation did not produce a current snapshot. */
+export type FreshnessFailure =
+  | { readonly kind: 'fetch'; readonly message: string }
+  | { readonly kind: 'invalidated'; readonly reason: InvalidationReason };
+
+export interface UseFreshCollectionOptions<T> {
+  /** Source identity for provenance labels, e.g. `gateway:/api/tasks`. */
+  readonly source: string;
+  /** Performs the unvalidated fetch. The hook owns abort and verification. */
+  readonly fetcher: (signal: AbortSignal) => Promise<unknown>;
+  /**
+   * Runtime schema validator. Returning `null` invalidates the payload
+   * (`schema-mismatch`) instead of letting malformed JSON flow into render.
+   */
+  readonly validate: (value: unknown) => FreshPayload<T> | null;
+  /** Overrides of the default freshness policy. */
+  readonly policy?: Partial<FreshnessPolicy>;
+  /**
+   * Session cache key for last-known snapshots. `null`/omitted disables
+   * restore. Restored snapshots are unverified: they render only as
+   * labeled `stale` data until a fetch re-verifies them.
+   */
+  readonly cacheKey?: string | null;
+  /** Injectable clock for deterministic age transitions in tests. */
+  readonly clock?: () => number;
+  /** Aging tick interval override (default derived from `staleAfterMs`). */
+  readonly tickMs?: number;
+  /** When false, no fetch runs (surfaces stay `unavailable`/`unknown`). */
+  readonly enabled?: boolean;
+}
+
+export interface FreshCollection<T> {
+  /** Last verified (or restored-unverified) snapshot, or `null`. */
+  readonly snapshot: FreshSnapshot<T> | null;
+  /** Snapshot data or `null` — never a fabricated empty collection. */
+  readonly data: T | null;
+  readonly freshness: FreshnessState;
+  /** True while a validation request is in flight. */
+  readonly validating: boolean;
+  /** Outcome of the latest failed validation, `null` when healthy. */
+  readonly failure: FreshnessFailure | null;
+  /** False unless freshness is `current`; drives disabled UI affordances. */
+  readonly canMutate: boolean;
+  /** Re-run the fetch and re-verify. Always allowed (it is a read). */
+  readonly revalidate: () => Promise<void>;
+  /**
+   * Run a state-changing operation against verified-current data only.
+   * Rejects with `StaleMutationError` on any other state — the guard fires
+   * even if a disabled button was bypassed (defense in depth).
+   */
+  readonly mutate: <R>(operation: (data: T) => Promise<R>) => Promise<R>;
+}
+
+const defaultClock = (): number => Date.now();
+
+function resolveTickMs(policy: FreshnessPolicy, override?: number): number {
+  if (override !== undefined && override > 0) return override;
+  return Math.min(5_000, Math.max(250, Math.floor(policy.staleAfterMs / 4)));
+}
+
+function isAuthFailure(caught: unknown): boolean {
+  return (
+    typeof caught === 'object' &&
+    caught !== null &&
+    'statusCode' in caught &&
+    ((caught as { statusCode?: unknown }).statusCode === 401 ||
+      (caught as { statusCode?: unknown }).statusCode === 403)
+  );
+}
+
+function fetchFailureMessage(caught: unknown): string {
+  if (caught instanceof Error && caught.message.trim().length > 0) return caught.message;
+  return 'The request failed.';
+}
+
+/** Human-readable summary of a failure for unavailable/stale notices. */
+export function describeFailure(failure: FreshnessFailure | null): string | null {
+  if (failure === null) return null;
+  if (failure.kind === 'fetch') return failure.message;
+  return `The snapshot was invalidated: ${invalidationReasonLabels[failure.reason]}.`;
+}
+
+export function useFreshCollection<T>(options: UseFreshCollectionOptions<T>): FreshCollection<T> {
+  const optionsRef = useRef(options);
+  optionsRef.current = options;
+
+  const policy = useMemo<FreshnessPolicy>(
+    () => ({ ...DEFAULT_FRESHNESS_POLICY, ...options.policy }),
+    [options.policy],
+  );
+  const policyRef = useRef(policy);
+  policyRef.current = policy;
+
+  const clockRef = useRef(options.clock ?? defaultClock);
+  clockRef.current = options.clock ?? defaultClock;
+
+  const [snapshot, setSnapshot] = useState<FreshSnapshot<T> | null>(null);
+  const [failure, setFailure] = useState<FreshnessFailure | null>(null);
+  const [unverified, setUnverified] = useState(false);
+  const [validating, setValidating] = useState(options.enabled !== false);
+  const [now, setNow] = useState(() => (options.clock ?? defaultClock)());
+
+  const snapshotRef = useRef(snapshot);
+  snapshotRef.current = snapshot;
+  const failureRef = useRef(failure);
+  failureRef.current = failure;
+  const unverifiedRef = useRef(unverified);
+  unverifiedRef.current = unverified;
+
+  const runRef = useRef(0);
+  const abortRef = useRef<AbortController | null>(null);
+
+  const revalidate = useCallback(async (): Promise<void> => {
+    const current = optionsRef.current;
+    if (current.enabled === false) {
+      setValidating(false);
+      return;
+    }
+
+    const runId = ++runRef.current;
+    abortRef.current?.abort();
+    const controller = new AbortController();
+    abortRef.current = controller;
+    setValidating(true);
+
+    let value: unknown;
+    try {
+      value = await current.fetcher(controller.signal);
+    } catch (caught) {
+      if (runRef.current !== runId || controller.signal.aborted) return;
+      if (isAuthFailure(caught)) {
+        // An unauthenticated viewer must not keep (or be served) the
+        // previous user's last-known data.
+        setSnapshot(null);
+        setUnverified(false);
+        if (current.cacheKey) clearSnapshotCache(current.cacheKey);
+      }
+      setFailure({ kind: 'fetch', message: fetchFailureMessage(caught) });
+      setValidating(false);
+      return;
+    }
+
+    if (runRef.current !== runId) return;
+
+    const result = acceptSnapshot({
+      value,
+      validate: current.validate,
+      previous: snapshotRef.current,
+      policy: policyRef.current,
+      source: current.source,
+      now: clockRef.current(),
+    });
+
+    if (result.outcome === 'accepted') {
+      setSnapshot(result.snapshot);
+      setUnverified(false);
+      setFailure(null);
+      if (current.cacheKey) writeSnapshotCache(current.cacheKey, result.snapshot);
+    } else {
+      if (result.reason === 'cross-workspace') {
+        // Data verified for a different workspace must not linger as
+        // last-known situational awareness either.
+        setSnapshot(null);
+        setUnverified(false);
+      }
+      if (current.cacheKey) clearSnapshotCache(current.cacheKey);
+      setFailure({ kind: 'invalidated', reason: result.reason });
+    }
+    setValidating(false);
+  }, []);
+
+  // Restore the last-known snapshot (unverified) and run the first fetch.
+  useEffect(() => {
+    if (optionsRef.current.enabled === false) {
+      setValidating(false);
+      return;
+    }
+
+    const cacheKey = optionsRef.current.cacheKey;
+    if (cacheKey) {
+      const restored = readSnapshotCache<T>({
+        key: cacheKey,
+        workspace: policyRef.current.workspace,
+        policy: policyRef.current,
+        validate: optionsRef.current.validate,
+      });
+      if (restored.outcome === 'hit') {
+        setSnapshot(restored.snapshot);
+        setUnverified(true);
+      } else if (restored.outcome === 'invalidated') {
+        // A corrupted/foreign/regressed entry is dropped immediately; it must
+        // never surface as data. The fetch decides the visible state.
+        clearSnapshotCache(cacheKey);
+      }
+    }
+
+    void revalidate();
+
+    return () => {
+      abortRef.current?.abort();
+    };
+    // Mount-once by design: `revalidate` is stable and reads live options
+    // through refs, so it never needs to re-run when options change.
+    // Route-param pages remount this hook via an identity `key` instead.
+  }, [revalidate]);
+
+  // Aging tick: recomputes freshness as the snapshot ages past the policy.
+  useEffect(() => {
+    const interval = setInterval(
+      () => {
+        setNow(clockRef.current());
+      },
+      resolveTickMs(policyRef.current, optionsRef.current.tickMs),
+    );
+    return () => clearInterval(interval);
+  }, []);
+
+  const freshness = useMemo<FreshnessState>(() => {
+    if (snapshot === null) return validating ? 'unknown' : 'unavailable';
+    return computeFreshness({
+      snapshot,
+      policy,
+      now,
+      degraded: failure !== null || unverified,
+    });
+    // `now` from state covers age; refs inside computeFreshness are pure.
+  }, [snapshot, validating, failure, unverified, now, policy]);
+
+  const canMutate = freshness === 'current';
+
+  const mutate = useCallback(async <R>(operation: (data: T) => Promise<R>): Promise<R> => {
+    const currentSnapshot = snapshotRef.current;
+    // No verified snapshot at all: with nothing verified there is nothing
+    // current to mutate, regardless of the recorded failure.
+    if (currentSnapshot === null) throw new StaleMutationError('unavailable');
+    const state = computeFreshness({
+      snapshot: currentSnapshot,
+      policy: policyRef.current,
+      now: clockRef.current(),
+      degraded: failureRef.current !== null || unverifiedRef.current,
+    });
+    assertMutable(state);
+    return operation(currentSnapshot.data);
+  }, []);
+
+  return {
+    snapshot,
+    data: snapshot === null ? null : snapshot.data,
+    freshness,
+    validating,
+    failure,
+    canMutate,
+    revalidate,
+    mutate,
+  };
+}

apps/web/src/lib/freshness/validators.spec.ts

@@ -0,0 +1,103 @@
+import { describe, expect, it } from 'vitest';
+import type { Mission, Project, Task } from '@/lib/types';
+import {
+  validateMissionCollection,
+  validateProjectCollection,
+  validateProjectEntity,
+  validateTaskCollection,
+} from './validators';
+import { missionFixtures, projectFixtures, taskFixtures } from '@/spa/pages/page-fixtures';
+
+describe('validateTaskCollection', () => {
+  it('accepts a well-formed task collection', () => {
+    expect(validateTaskCollection(taskFixtures)).toEqual({
+      data: taskFixtures,
+      workspace: null,
+    });
+  });
+
+  it('accepts an empty collection (a healthy empty state is a valid payload)', () => {
+    expect(validateTaskCollection([])).toEqual({ data: [], workspace: null });
+  });
+
+  it.each([
+    ['not an array', { items: [] }],
+    ['item is not an object', ['nope']],
+    ['missing id', [{ ...(taskFixtures[0] as Task), id: undefined }]],
+    ['missing title', [{ ...(taskFixtures[0] as Task), title: undefined }]],
+    ['unknown status enum', [{ ...(taskFixtures[0] as Task), status: 'finished' }]],
+    ['unknown priority enum', [{ ...(taskFixtures[0] as Task), priority: 'urgent' }]],
+    ['tags of the wrong type', [{ ...(taskFixtures[0] as Task), tags: 'spa' }]],
+    ['metadata of the wrong type', [{ ...(taskFixtures[0] as Task), metadata: 'notes' }]],
+    ['createdAt of the wrong type', [{ ...(taskFixtures[0] as Task), createdAt: 1234 }]],
+    ['null sneaks past a required string', [{ ...(taskFixtures[0] as Task), title: null }]],
+  ])('rejects a malformed payload: %s', (_label, value) => {
+    expect(validateTaskCollection(value)).toBeNull();
+  });
+});
+
+describe('validateMissionCollection', () => {
+  it('accepts a well-formed mission collection', () => {
+    expect(validateMissionCollection(missionFixtures)).toEqual({
+      data: missionFixtures,
+      workspace: null,
+    });
+  });
+
+  it.each([
+    ['not an array', null],
+    ['item missing name', [{ ...(missionFixtures[0] as Mission), name: 42 }]],
+    ['unknown status enum', [{ ...(missionFixtures[0] as Mission), status: 'canceled' }]],
+    ['projectId of the wrong type', [{ ...(missionFixtures[0] as Mission), projectId: 7 }]],
+  ])('rejects a malformed payload: %s', (_label, value) => {
+    expect(validateMissionCollection(value)).toBeNull();
+  });
+});
+
+describe('validateProjectCollection', () => {
+  it('accepts a uniform workspace-scoped collection and reports its workspace', () => {
+    expect(validateProjectCollection(projectFixtures)).toEqual({
+      data: projectFixtures,
+      workspace: 'user-1',
+    });
+  });
+
+  it('accepts an empty collection with no workspace identity', () => {
+    expect(validateProjectCollection([])).toEqual({ data: [], workspace: null });
+  });
+
+  it.each([
+    ['not an array', 42],
+    ['item missing userId', [{ ...(projectFixtures[0] as Project), userId: undefined }]],
+    ['unknown status enum', [{ ...(projectFixtures[0] as Project), status: 'live' }]],
+    ['description of the wrong type', [{ ...(projectFixtures[0] as Project), description: 1 }]],
+  ])('rejects a malformed payload: %s', (_label, value) => {
+    expect(validateProjectCollection(value)).toBeNull();
+  });
+
+  it('rejects a collection mixing workspace identities (cross-workspace leak)', () => {
+    const mixed = [
+      projectFixtures[0] as Project,
+      { ...(projectFixtures[1] as Project), userId: 'user-2' },
+    ];
+    expect(validateProjectCollection(mixed)).toBeNull();
+  });
+});
+
+describe('validateProjectEntity', () => {
+  it('accepts a well-formed project and reports its workspace', () => {
+    expect(validateProjectEntity(projectFixtures[0])).toEqual({
+      data: projectFixtures[0],
+      workspace: 'user-1',
+    });
+  });
+
+  it.each([
+    ['not an object', 'project-1'],
+    ['null', null],
+    ['array', [projectFixtures[0]]],
+    ['missing userId', [{ ...(projectFixtures[0] as Project), userId: null }]],
+  ])('rejects a malformed entity: %s', (_label, value) => {
+    expect(validateProjectEntity(value)).toBeNull();
+  });
+});

apps/web/src/lib/freshness/validators.ts

@@ -0,0 +1,135 @@
+import type { Mission, Project, Task, MissionStatus, TaskPriority, TaskStatus } from '@/lib/types';
+import type { FreshPayload } from './model';
+
+/**
+ * Runtime schema validators for gateway collections (RI-5-001).
+ *
+ * `api<T>()` returns untrusted JSON cast to `T`; these validators are the
+ * seam where a malformed response becomes an explicit schema mismatch
+ * instead of flowing into the render path as if it were healthy data.
+ */
+
+const taskStatuses: readonly TaskStatus[] = [
+  'not-started',
+  'in-progress',
+  'blocked',
+  'done',
+  'cancelled',
+];
+const taskPriorities: readonly TaskPriority[] = ['critical', 'high', 'medium', 'low'];
+const missionStatuses: readonly MissionStatus[] = [
+  'planning',
+  'active',
+  'paused',
+  'completed',
+  'failed',
+];
+const projectStatuses: readonly Project['status'][] = ['active', 'paused', 'completed', 'archived'];
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === 'object' && value !== null && !Array.isArray(value);
+}
+
+function isString(value: unknown): value is string {
+  return typeof value === 'string';
+}
+
+function isNullableString(value: unknown): value is string | null {
+  return value === null || typeof value === 'string';
+}
+
+function isOneOf<T extends string>(value: unknown, allowed: readonly T[]): value is T {
+  return typeof value === 'string' && (allowed as readonly string[]).includes(value);
+}
+
+function isNullableRecord(value: unknown): value is Record<string, unknown> | null {
+  return value === null || isRecord(value);
+}
+
+function isNullableStringArray(value: unknown): value is string[] | null {
+  if (value === null) return true;
+  if (!Array.isArray(value)) return false;
+  return value.every((item) => typeof item === 'string');
+}
+
+function isIsoLike(value: unknown): value is string {
+  return typeof value === 'string' && value.length > 0;
+}
+
+function isTask(value: unknown): value is Task {
+  if (!isRecord(value)) return false;
+  return (
+    isString(value['id']) &&
+    isString(value['title']) &&
+    isOneOf(value['status'], taskStatuses) &&
+    isOneOf(value['priority'], taskPriorities) &&
+    isNullableString(value['projectId']) &&
+    isNullableString(value['missionId']) &&
+    isNullableString(value['assignee']) &&
+    isNullableStringArray(value['tags']) &&
+    isNullableRecord(value['metadata']) &&
+    isNullableString(value['dueDate']) &&
+    isIsoLike(value['createdAt']) &&
+    isIsoLike(value['updatedAt'])
+  );
+}
+
+/** Tasks carry no workspace identity; scope falls back to the policy. */
+export function validateTaskCollection(value: unknown): FreshPayload<Task[]> | null {
+  if (!Array.isArray(value) || !value.every(isTask)) return null;
+  return { data: value as Task[], workspace: null };
+}
+
+function isMission(value: unknown): value is Mission {
+  if (!isRecord(value)) return false;
+  return (
+    isString(value['id']) &&
+    isString(value['name']) &&
+    isOneOf(value['status'], missionStatuses) &&
+    isNullableString(value['projectId']) &&
+    isNullableString(value['description']) &&
+    isNullableRecord(value['metadata']) &&
+    isIsoLike(value['createdAt']) &&
+    isIsoLike(value['updatedAt'])
+  );
+}
+
+/** Missions carry no workspace identity; scope falls back to the policy. */
+export function validateMissionCollection(value: unknown): FreshPayload<Mission[]> | null {
+  if (!Array.isArray(value) || !value.every(isMission)) return null;
+  return { data: value as Mission[], workspace: null };
+}
+
+function isProject(value: unknown): value is Project {
+  if (!isRecord(value)) return false;
+  return (
+    isString(value['id']) &&
+    isString(value['name']) &&
+    isOneOf(value['status'], projectStatuses) &&
+    isString(value['userId']) &&
+    isNullableString(value['description']) &&
+    isNullableRecord(value['metadata']) &&
+    isIsoLike(value['createdAt']) &&
+    isIsoLike(value['updatedAt'])
+  );
+}
+
+/**
+ * Projects are workspace-scoped: every item must carry the same `userId`.
+ * A collection mixing identities (cross-workspace leak) is a schema
+ * mismatch; the uniform `userId` becomes the snapshot workspace.
+ */
+export function validateProjectCollection(value: unknown): FreshPayload<Project[]> | null {
+  if (!Array.isArray(value) || !value.every(isProject)) return null;
+  const projects = value as Project[];
+  const workspaces = new Set(projects.map((project) => project.userId));
+  if (workspaces.size > 1) return null;
+  return { data: projects, workspace: projects.length > 0 ? projects[0]!.userId : null };
+}
+
+/** Single project entity (project detail primary collection). */
+export function validateProjectEntity(value: unknown): FreshPayload<Project> | null {
+  if (!isProject(value)) return null;
+  const project = value as Project;
+  return { data: project, workspace: project.userId };
+}

apps/web/src/spa/pages/project-detail.spec.tsx

@@ -35,6 +35,7 @@ afterEach(async () => {
   document.body.replaceChildren();
   root = null;
   apiMock.mockReset();
+  sessionStorage.clear();
 });
 
 async function renderProjectDetailPage(): Promise<ReturnType<typeof createMemoryRouter>> {
@@ -64,21 +65,49 @@ function clickButtonByText(text: string): void {
   button.dispatchEvent(new MouseEvent('click', { bubbles: true }));
 }
 
+async function flushAct(): Promise<void> {
+  await act(async () => {
+    await Promise.resolve();
+  });
+}
+
+interface Deferred<T> {
+  promise: Promise<T>;
+  resolve: (value: T) => void;
+}
+
+function createDeferred<T>(): Deferred<T> {
+  let resolve!: (value: T) => void;
+  const promise = new Promise<T>((res) => {
+    resolve = res;
+  });
+  return { promise, resolve };
+}
+
+const projectOneTasks = taskFixtures.filter((task) => task.projectId === 'project-1');
+
+function mockHealthyLoad(): void {
+  apiMock
+    .mockResolvedValueOnce(projectFixtures[0])
+    .mockResolvedValueOnce(missionFixtures)
+    .mockResolvedValueOnce(projectOneTasks);
+}
+
 describe('ProjectDetailPage', () => {
   it('loads the project, tasks, missions, and optional PRD content for the active project', async () => {
-    apiMock
-      .mockResolvedValueOnce(projectFixtures[0])
-      .mockResolvedValueOnce(missionFixtures)
-      .mockResolvedValueOnce(taskFixtures.filter((task) => task.projectId === 'project-1'));
+    mockHealthyLoad();
 
     await renderProjectDetailPage();
 
-    expect(apiMock.mock.calls).toEqual([
-      ['/api/projects/project-1'],
-      ['/api/missions'],
-      ['/api/tasks?projectId=project-1'],
+    expect(apiMock.mock.calls.map((call) => call[0])).toEqual([
+      '/api/projects/project-1',
+      '/api/missions',
+      '/api/tasks?projectId=project-1',
     ]);
 
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'current',
+    );
     expect(container.textContent).toContain('Mosaic Stack');
     expect(container.textContent).toContain('Route /projects/:id');
     expect(container.textContent).toContain('Tasks');
@@ -101,10 +130,7 @@ describe('ProjectDetailPage', () => {
   });
 
   it('opens and closes the existing read-only task modal from the tasks tab', async () => {
-    apiMock
-      .mockResolvedValueOnce(projectFixtures[0])
-      .mockResolvedValueOnce(missionFixtures)
-      .mockResolvedValueOnce(taskFixtures.filter((task) => task.projectId === 'project-1'));
+    mockHealthyLoad();
 
     await renderProjectDetailPage();
 
@@ -134,35 +160,153 @@ describe('ProjectDetailPage', () => {
     expect(container.querySelector('[role="dialog"]')).toBeNull();
   });
 
-  it('renders the project with an empty missions tab when the missions request fails', async () => {
-    apiMock
-      .mockResolvedValueOnce(projectFixtures[0])
-      .mockRejectedValueOnce(new Error('Missions request failed'))
-      .mockResolvedValueOnce(taskFixtures.filter((task) => task.projectId === 'project-1'));
+  it('shows verified completion verdicts when the task collection is current', async () => {
+    mockHealthyLoad();
 
     await renderProjectDetailPage();
 
-    expect(container.textContent).toContain('Mosaic Stack');
-    expect(container.querySelector('[role="alert"]')).toBeNull();
-
-    await act(async () => {
-      clickButtonByText('Missions (0)');
-    });
-
-    expect(container.textContent).toContain('No missions for this project');
+    const doneCard = [...container.querySelectorAll('div')].find(
+      (candidate) => candidate.textContent === 'Done1',
+    );
+    expect(doneCard).toBeTruthy();
+    const inProgressCard = [...container.querySelectorAll('div')].find(
+      (candidate) => candidate.textContent === 'In Progress1',
+    );
+    expect(inProgressCard).toBeTruthy();
   });
 
-  it('renders a visible alert when the project request fails and lets the user navigate back', async () => {
+  it('renders an explicit unavailable missions tab when the missions request fails (partial, not empty)', async () => {
+    apiMock
+      .mockResolvedValueOnce(projectFixtures[0])
+      .mockRejectedValueOnce(new Error('Missions request failed'))
+      .mockResolvedValueOnce(projectOneTasks);
+
+    await renderProjectDetailPage();
+
+    // Secondary failure degrades the surface to partial; the project itself
+    // still renders.
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'partial',
+    );
+    expect(container.textContent).toContain('Mosaic Stack');
+    const partial = container.querySelector('[role="status"]');
+    expect(partial?.textContent).toContain('Missions');
+    expect(partial?.textContent).toContain('unavailable');
+
+    await act(async () => {
+      clickButtonByText('Missions (?)');
+    });
+
+    const alert = container.querySelector('[role="alert"]');
+    expect(alert?.textContent).toContain('Missions request failed');
+    // Negative control: a failed fetch must not look like an empty list.
+    expect(container.textContent).not.toContain('No missions for this project');
+  });
+
+  it('marks derived verdicts unknown when the tasks collection is unavailable', async () => {
+    apiMock
+      .mockResolvedValueOnce(projectFixtures[0])
+      .mockResolvedValueOnce(missionFixtures)
+      .mockRejectedValueOnce(new Error('Tasks request failed'));
+
+    await renderProjectDetailPage();
+
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'partial',
+    );
+
+    // Completion verdicts become unknown ('?') — never green counts.
+    for (const label of ['Done', 'In Progress', 'Blocked', 'Tasks']) {
+      const unknownCard = [...container.querySelectorAll('div')].find(
+        (candidate) => candidate.textContent === `${label}?`,
+      );
+      expect(unknownCard, `expected ${label} card to render ?`).toBeTruthy();
+    }
+    // Negative control: no green "Done 1" verdict anywhere.
+    expect(
+      [...container.querySelectorAll('div')].some((candidate) => candidate.textContent === 'Done1'),
+    ).toBe(false);
+
+    await act(async () => {
+      clickButtonByText('Tasks (?)');
+    });
+
+    const alert = container.querySelector('[role="alert"]');
+    expect(alert?.textContent).toContain('Tasks request failed');
+    // Negative control: no healthy empty task list from a failed fetch.
+    expect(container.textContent).not.toContain('No tasks found');
+    expect(container.querySelector('table')).toBeNull();
+  });
+
+  it('recovers a partial surface to current after revalidation', async () => {
+    apiMock
+      .mockResolvedValueOnce(projectFixtures[0])
+      .mockResolvedValueOnce(missionFixtures)
+      .mockRejectedValueOnce(new Error('Tasks request failed'))
+      .mockResolvedValueOnce(projectFixtures[0])
+      .mockResolvedValueOnce(missionFixtures)
+      .mockResolvedValueOnce(projectOneTasks);
+
+    await renderProjectDetailPage();
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'partial',
+    );
+
+    await act(async () => {
+      clickButtonByText('Revalidate');
+    });
+    await flushAct();
+
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'current',
+    );
+    expect(
+      [...container.querySelectorAll('div')].some((candidate) => candidate.textContent === 'Done1'),
+    ).toBe(true);
+  });
+
+  it("never shows one project's data on another project's route after navigation", async () => {
+    mockHealthyLoad();
+
+    const router = await renderProjectDetailPage();
+    expect(container.textContent).toContain('Mosaic Stack');
+
+    const deferred = createDeferred<(typeof projectFixtures)[number]>();
+    apiMock
+      .mockResolvedValueOnce(deferred.promise)
+      .mockResolvedValueOnce([])
+      .mockResolvedValueOnce([]);
+
+    await act(async () => {
+      await router.navigate('/projects/project-2');
+    });
+
+    // While project-2 loads, nothing from project-1 may render on its route.
+    expect(container.textContent).toContain('Loading project...');
+    expect(container.textContent).not.toContain('Mosaic Stack');
+    expect(container.textContent).not.toContain('Route /projects/:id');
+
+    await act(async () => {
+      deferred.resolve(projectFixtures[1]!);
+      await deferred.promise;
+    });
+
+    expect(container.textContent).toContain('Agent Runtime');
+    expect(apiMock.mock.calls[3]?.[0]).toBe('/api/projects/project-2');
+  });
+
+  it('renders a visible unavailable state when the project request fails and lets the user navigate back', async () => {
     apiMock
       .mockRejectedValueOnce(new Error('Project request failed'))
       .mockResolvedValueOnce(missionFixtures)
-      .mockResolvedValueOnce(taskFixtures.filter((task) => task.projectId === 'project-1'));
+      .mockResolvedValueOnce(projectOneTasks);
 
     const router = await renderProjectDetailPage();
 
     const alert = container.querySelector('[role="alert"]');
     expect(alert).toBeTruthy();
     expect(alert?.textContent).toContain('Project request failed');
+    expect(alert?.textContent).toContain('not an empty result');
     expect(container.textContent).not.toContain('Mosaic Stack');
 
     await act(async () => {

apps/web/src/spa/pages/project-detail.tsx

@@ -1,14 +1,30 @@
-import { useEffect, useState, type ReactElement } from 'react';
+import { useState, type ReactElement } from 'react';
 import { useNavigate, useParams } from 'react-router-dom';
 import { MissionTimeline } from '@/components/projects/mission-timeline';
 import { PrdViewer } from '@/components/projects/prd-viewer';
 import { TaskDetailModal } from '@/components/tasks/task-detail-modal';
 import { TaskListView } from '@/components/tasks/task-list-view';
 import { TaskStatusSummary } from '@/components/tasks/task-status-summary';
+import {
+  PartialDataNotice,
+  StaleDataNotice,
+  UnavailableDataNotice,
+} from '@/components/freshness/freshness-notices';
 import { api } from '@/lib/api';
 import { cn } from '@/lib/cn';
 import type { Mission, Project, Task, TaskStatus } from '@/lib/types';
-import { getErrorMessage } from './page-errors';
+import {
+  combineFreshness,
+  UNKNOWN_VERDICT,
+  verdictValue,
+  type FreshSnapshot,
+} from '@/lib/freshness/model';
+import { describeFailure, useFreshCollection } from '@/lib/freshness/use-fresh-collection';
+import {
+  validateMissionCollection,
+  validateProjectEntity,
+  validateTaskCollection,
+} from '@/lib/freshness/validators';
 
 type Tab = 'overview' | 'tasks' | 'missions' | 'prd';
 
@@ -51,73 +67,62 @@ function TabButton({ id, label, activeTab, onClick }: TabButtonProps): ReactElem
   );
 }
 
+/** Remounts per project id so no state from one project renders for another. */
 export function ProjectDetailPage(): ReactElement {
   const { id = '' } = useParams();
+  return <ProjectDetail id={id} key={id} />;
+}
+
+function ProjectDetail({ id }: { id: string }): ReactElement {
   const navigate = useNavigate();
-  const [project, setProject] = useState<Project | null>(null);
-  const [missions, setMissions] = useState<Mission[]>([]);
-  const [tasks, setTasks] = useState<Task[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
+  const enabled = id.length > 0;
+
+  // Primary collection gates the surface; missions and tasks are secondaries
+  // whose failures degrade the surface to `partial` instead of rendering
+  // empty healthy lists.
+  const project = useFreshCollection<Project>({
+    source: `gateway:/api/projects/${id}`,
+    fetcher: (signal) => api<unknown>(`/api/projects/${id}`, { signal }),
+    validate: validateProjectEntity,
+    // No last-known restore: the entity carries workspace identity that
+    // cannot be scope-checked before display (see ProjectsPage note).
+    enabled,
+  });
+  const missions = useFreshCollection<Mission[]>({
+    source: 'gateway:/api/missions',
+    fetcher: (signal) => api<unknown>('/api/missions', { signal }),
+    validate: validateMissionCollection,
+    cacheKey: enabled ? 'missions' : null,
+    enabled,
+  });
+  const tasks = useFreshCollection<Task[]>({
+    source: `gateway:/api/tasks?projectId=${id}`,
+    fetcher: (signal) => api<unknown>(`/api/tasks?projectId=${id}`, { signal }),
+    validate: validateTaskCollection,
+    cacheKey: enabled ? `project-tasks:${id}` : null,
+    enabled,
+  });
+
   const [activeTab, setActiveTab] = useState<Tab>('overview');
   const [taskFilter, setTaskFilter] = useState<TaskStatus | 'all'>('all');
   const [selectedTask, setSelectedTask] = useState<Task | null>(null);
 
-  useEffect(() => {
-    if (!id) {
-      setError('Project id is missing.');
-      setLoading(false);
-      return;
-    }
+  const surface = combineFreshness(project.freshness, [missions.freshness, tasks.freshness]);
+  const tasksVerified = tasks.freshness === 'current';
+  const projectMissions = missions.data?.filter((mission) => mission.projectId === id) ?? null;
 
-    let cancelled = false;
-    setLoading(true);
-    setError(null);
+  const retryAll = (): void => {
+    void Promise.all([project.revalidate(), missions.revalidate(), tasks.revalidate()]);
+  };
 
-    void Promise.all([
-      api<Project>('/api/projects/' + id),
-      api<Mission[]>('/api/missions').catch(() => [] as Mission[]),
-      api<Task[]>('/api/tasks?projectId=' + id).catch(() => [] as Task[]),
-    ])
-      .then(([loadedProject, allMissions, loadedTasks]) => {
-        if (cancelled) return;
-        setProject(loadedProject);
-        setMissions(allMissions.filter((mission) => mission.projectId === id));
-        setTasks(loadedTasks);
-      })
-      .catch((caught: unknown) => {
-        if (cancelled) return;
-        setError(getErrorMessage(caught, 'Failed to load project.'));
-      })
-      .finally(() => {
-        if (cancelled) return;
-        setLoading(false);
-      });
-
-    return () => {
-      cancelled = true;
-    };
-  }, [id]);
-
-  if (loading) {
-    return (
-      <div className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
-        <header className="mb-6 border-b px-1 pb-3">
-          <h1 className="text-2xl font-semibold">Project</h1>
-        </header>
-        <p className="py-16 text-center text-sm text-text-muted">Loading project...</p>
-      </div>
-    );
-  }
-
-  if (error || !project) {
+  if (!enabled) {
     return (
       <div className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
         <header className="mb-6 border-b px-1 pb-3">
           <h1 className="text-2xl font-semibold">Project</h1>
         </header>
         <div role="alert" className="rounded-lg border border-error/40 px-4 py-3 text-sm">
-          {error ?? 'Project not found.'}
+          Project id is missing.
         </div>
         <button
           type="button"
@@ -130,18 +135,81 @@ export function ProjectDetailPage(): ReactElement {
     );
   }
 
+  if (project.freshness === 'unknown') {
+    return (
+      <div className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
+        <header className="mb-6 border-b px-1 pb-3">
+          <h1 className="text-2xl font-semibold">Project</h1>
+        </header>
+        <p className="py-16 text-center text-sm text-text-muted">Loading project...</p>
+      </div>
+    );
+  }
+
+  if (project.freshness === 'unavailable' || project.data === null) {
+    return (
+      <div className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
+        <header className="mb-6 border-b px-1 pb-3">
+          <h1 className="text-2xl font-semibold">Project</h1>
+        </header>
+        <UnavailableDataNotice
+          title="This project"
+          detail={describeFailure(project.failure)}
+          onRetry={retryAll}
+        />
+        <button
+          type="button"
+          onClick={() => navigate('/projects')}
+          className="mt-4 w-fit text-sm underline"
+        >
+          Back to projects
+        </button>
+      </div>
+    );
+  }
+
+  const projectTasks = tasks.data ?? null;
   const filteredTasks =
-    taskFilter === 'all' ? tasks : tasks.filter((task) => task.status === taskFilter);
-  const prdContent = getPrdContent(project);
+    projectTasks === null
+      ? []
+      : taskFilter === 'all'
+        ? projectTasks
+        : projectTasks.filter((task) => task.status === taskFilter);
+
+  // Derived completion verdicts: unknown (never green) unless the task
+  // collection is verified current.
+  const doneCount = projectTasks?.filter((task) => task.status === 'done').length ?? 0;
+  const inProgressCount = projectTasks?.filter((task) => task.status === 'in-progress').length ?? 0;
+  const blockedCount = projectTasks?.filter((task) => task.status === 'blocked').length ?? 0;
+
+  const prdContent = getPrdContent(project.data);
   const tabs: Array<{ id: Tab; label: string }> = [
     { id: 'overview', label: 'Overview' },
-    { id: 'tasks', label: `Tasks (${tasks.length})` },
-    { id: 'missions', label: `Missions (${missions.length})` },
+    {
+      id: 'tasks',
+      label: `Tasks (${projectTasks === null ? UNKNOWN_VERDICT : projectTasks.length})`,
+    },
+    {
+      id: 'missions',
+      label: `Missions (${projectMissions === null ? UNKNOWN_VERDICT : projectMissions.length})`,
+    },
     ...(prdContent ? [{ id: 'prd' as const, label: 'PRD' }] : []),
   ];
 
+  const staleSnapshot: FreshSnapshot<unknown> | null =
+    project.freshness === 'stale'
+      ? project.snapshot
+      : missions.freshness === 'stale'
+        ? missions.snapshot
+        : tasks.freshness === 'stale'
+          ? tasks.snapshot
+          : null;
+  const missingSections: string[] = [];
+  if (missions.freshness === 'unavailable') missingSections.push('Missions');
+  if (tasks.freshness === 'unavailable') missingSections.push('Tasks');
+
   return (
-    <div className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
+    <div data-freshness={surface} className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
       <header className="mb-6 border-b px-1 pb-3">
         <nav className="mb-4 flex items-center gap-2 text-sm text-text-muted">
           <button
@@ -152,49 +220,64 @@ export function ProjectDetailPage(): ReactElement {
             Projects
           </button>
           <span>/</span>
-          <span className="text-text-primary">{project.name}</span>
+          <span className="text-text-primary">{project.data.name}</span>
         </nav>
 
         <div className="flex items-start justify-between gap-4">
           <div>
             <div className="flex items-center gap-3">
-              <h1 className="text-2xl font-semibold text-text-primary">{project.name}</h1>
+              <h1 className="text-2xl font-semibold text-text-primary">{project.data.name}</h1>
               <span
                 className={cn(
                   'rounded-full px-2 py-0.5 text-xs',
-                  projectStatusColors[project.status] ?? 'bg-gray-600/20 text-gray-400',
+                  projectStatusColors[project.data.status] ?? 'bg-gray-600/20 text-gray-400',
                 )}
               >
-                {project.status}
+                {project.data.status}
               </span>
             </div>
-            {project.description ? (
-              <p className="mt-1 text-sm text-text-muted">{project.description}</p>
+            {project.data.description ? (
+              <p className="mt-1 text-sm text-text-muted">{project.data.description}</p>
             ) : null}
             <p className="mt-2 text-xs text-text-muted">
-              Created {new Date(project.createdAt).toLocaleDateString()} · Updated{' '}
-              {new Date(project.updatedAt).toLocaleDateString()}
+              Created {new Date(project.data.createdAt).toLocaleDateString()} · Updated{' '}
+              {new Date(project.data.updatedAt).toLocaleDateString()}
             </p>
           </div>
         </div>
       </header>
 
+      {staleSnapshot !== null ? (
+        <div className="mb-6">
+          <StaleDataNotice label={staleSnapshot} onRetry={retryAll} />
+        </div>
+      ) : null}
+
+      {missingSections.length > 0 ? (
+        <div className="mb-6">
+          <PartialDataNotice missing={missingSections} onRetry={retryAll} />
+        </div>
+      ) : null}
+
       <div className="mb-6 grid grid-cols-2 gap-3 sm:grid-cols-4">
-        <StatCard label="Tasks" value={String(tasks.length)} />
+        <StatCard
+          label="Tasks"
+          value={projectTasks === null ? UNKNOWN_VERDICT : String(projectTasks.length)}
+        />
         <StatCard
           label="Done"
-          value={String(tasks.filter((task) => task.status === 'done').length)}
-          valueClass="text-success"
+          value={verdictValue(tasksVerified, String(doneCount))}
+          valueClass={tasksVerified ? 'text-success' : undefined}
         />
         <StatCard
           label="In Progress"
-          value={String(tasks.filter((task) => task.status === 'in-progress').length)}
-          valueClass="text-blue-400"
+          value={verdictValue(tasksVerified, String(inProgressCount))}
+          valueClass={tasksVerified ? 'text-blue-400' : undefined}
         />
         <StatCard
           label="Blocked"
-          value={String(tasks.filter((task) => task.status === 'blocked').length)}
-          valueClass={tasks.some((task) => task.status === 'blocked') ? 'text-error' : undefined}
+          value={verdictValue(tasksVerified, String(blockedCount))}
+          valueClass={tasksVerified && blockedCount > 0 ? 'text-error' : undefined}
         />
       </div>
 
@@ -211,23 +294,43 @@ export function ProjectDetailPage(): ReactElement {
       </div>
 
       {activeTab === 'overview' ? (
-        <OverviewTab project={project} missions={missions} tasks={tasks} />
+        <OverviewTab project={project.data} missions={projectMissions} tasks={projectTasks} />
       ) : null}
 
       {activeTab === 'tasks' ? (
         <div>
-          <div className="mb-4">
-            <TaskStatusSummary
-              tasks={tasks}
-              activeFilter={taskFilter}
-              onFilterChange={setTaskFilter}
+          {projectTasks === null ? (
+            <UnavailableDataNotice
+              title="Tasks"
+              detail={describeFailure(tasks.failure)}
+              onRetry={retryAll}
             />
-          </div>
-          <TaskListView tasks={filteredTasks} onTaskClick={setSelectedTask} />
+          ) : (
+            <>
+              <div className="mb-4">
+                <TaskStatusSummary
+                  tasks={projectTasks}
+                  activeFilter={taskFilter}
+                  onFilterChange={setTaskFilter}
+                />
+              </div>
+              <TaskListView tasks={filteredTasks} onTaskClick={setSelectedTask} />
+            </>
+          )}
         </div>
       ) : null}
 
-      {activeTab === 'missions' ? <MissionTimeline missions={missions} /> : null}
+      {activeTab === 'missions' ? (
+        projectMissions === null ? (
+          <UnavailableDataNotice
+            title="Missions"
+            detail={describeFailure(missions.failure)}
+            onRetry={retryAll}
+          />
+        ) : (
+          <MissionTimeline missions={projectMissions} />
+        )
+      ) : null}
 
       {activeTab === 'prd' && prdContent ? (
         <div className="rounded-lg border border-surface-border bg-surface-card p-6">
@@ -248,18 +351,26 @@ function OverviewTab({
   tasks,
 }: {
   project: Project;
-  missions: Mission[];
-  tasks: Task[];
+  missions: Mission[] | null;
+  tasks: Task[] | null;
 }): ReactElement {
-  const recentTasks = [...tasks]
-    .sort((left, right) => new Date(right.updatedAt).getTime() - new Date(left.updatedAt).getTime())
-    .slice(0, 5);
+  const recentTasks =
+    tasks === null
+      ? null
+      : [...tasks]
+          .sort(
+            (left, right) =>
+              new Date(right.updatedAt).getTime() - new Date(left.updatedAt).getTime(),
+          )
+          .slice(0, 5);
 
   return (
     <div className="grid gap-6 lg:grid-cols-2">
       <section>
         <h2 className="mb-3 text-sm font-semibold text-text-secondary">Recent Tasks</h2>
-        {recentTasks.length === 0 ? (
+        {recentTasks === null ? (
+          <UnavailableDataNotice title="Tasks" />
+        ) : recentTasks.length === 0 ? (
           <div className="rounded-lg border border-surface-border bg-surface-card p-4 text-center">
             <p className="text-sm text-text-muted">No tasks yet</p>
           </div>
@@ -287,7 +398,9 @@ function OverviewTab({
 
       <section>
         <h2 className="mb-3 text-sm font-semibold text-text-secondary">Missions</h2>
-        {missions.length === 0 ? (
+        {missions === null ? (
+          <UnavailableDataNotice title="Missions" />
+        ) : missions.length === 0 ? (
           <div className="rounded-lg border border-surface-border bg-surface-card p-4 text-center">
             <p className="text-sm text-text-muted">No missions yet</p>
           </div>

apps/web/src/spa/pages/projects.spec.tsx

@@ -51,6 +51,7 @@ afterEach(async () => {
   document.body.replaceChildren();
   root = null;
   apiMock.mockReset();
+  sessionStorage.clear();
 });
 
 async function renderProjectsPage(): Promise<ReturnType<typeof createMemoryRouter>> {
@@ -71,6 +72,22 @@ async function renderProjectsPage(): Promise<ReturnType<typeof createMemoryRoute
   return router;
 }
 
+function clickButtonByText(text: string): void {
+  const button = [...container.querySelectorAll('button')].find((candidate) =>
+    candidate.textContent?.includes(text),
+  );
+  if (!button) {
+    throw new Error(`Button containing "${text}" not found`);
+  }
+  button.dispatchEvent(new MouseEvent('click', { bubbles: true }));
+}
+
+async function flushAct(): Promise<void> {
+  await act(async () => {
+    await Promise.resolve();
+  });
+}
+
 describe('ProjectsPage', () => {
   it('shows a visible loading state while the project request is in flight', async () => {
     const deferred = createDeferred<typeof projectFixtures>();
@@ -91,7 +108,7 @@ describe('ProjectsPage', () => {
 
     const router = await renderProjectsPage();
 
-    expect(apiMock).toHaveBeenCalledWith('/api/projects');
+    expect(apiMock.mock.calls[0]?.[0]).toBe('/api/projects');
     expect(container.textContent).toContain('Mosaic Stack');
     expect(container.textContent).toContain('Agent Runtime');
 
@@ -108,7 +125,7 @@ describe('ProjectsPage', () => {
     expect(container.textContent).toContain('Project detail target');
   });
 
-  it('renders the empty state when the API returns no projects', async () => {
+  it('renders the empty state only for a verified empty collection', async () => {
     apiMock.mockResolvedValueOnce([]);
 
     await renderProjectsPage();
@@ -117,9 +134,12 @@ describe('ProjectsPage', () => {
     expect(container.textContent).toContain(
       'Projects will appear here when created via the gateway API',
     );
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'current',
+    );
   });
 
-  it('renders a visible alert when the projects request fails', async () => {
+  it('renders a failed fetch as an explicit unavailable state, never an empty collection', async () => {
     apiMock.mockRejectedValueOnce(new Error('Projects are unavailable'));
 
     await renderProjectsPage();
@@ -127,5 +147,51 @@ describe('ProjectsPage', () => {
     const alert = container.querySelector('[role="alert"]');
     expect(alert).toBeTruthy();
     expect(alert?.textContent).toContain('Projects are unavailable');
+    expect(alert?.textContent).toContain('not an empty result');
+
+    // Negative controls: no healthy empty state and no project cards render
+    // from a failed fetch.
+    expect(container.textContent).not.toContain('No projects yet');
+    expect(container.textContent).not.toContain('Mosaic Stack');
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'unavailable',
+    );
+  });
+
+  it('renders an auth failure as unavailable and recovers after retry', async () => {
+    apiMock
+      .mockRejectedValueOnce(Object.assign(new Error('Unauthorized'), { statusCode: 401 }))
+      .mockResolvedValueOnce(projectFixtures);
+
+    await renderProjectsPage();
+
+    const alert = container.querySelector('[role="alert"]');
+    expect(alert?.textContent).toContain('Unauthorized');
+    expect(container.textContent).not.toContain('No projects yet');
+
+    await act(async () => {
+      clickButtonByText('Retry');
+    });
+    await flushAct();
+
+    expect(container.querySelector('[role="alert"]')).toBeNull();
+    expect(container.textContent).toContain('Mosaic Stack');
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'current',
+    );
+  });
+
+  it('renders a schema-mismatched response as unavailable, never as data', async () => {
+    apiMock.mockResolvedValueOnce({ results: projectFixtures });
+
+    await renderProjectsPage();
+
+    const alert = container.querySelector('[role="alert"]');
+    expect(alert?.textContent).toContain('not an empty result');
+    expect(container.textContent).not.toContain('Mosaic Stack');
+    expect(container.textContent).not.toContain('No projects yet');
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'unavailable',
+    );
   });
 });

apps/web/src/spa/pages/projects.tsx

@@ -1,53 +1,51 @@
-import { useEffect, useState, type ReactElement } from 'react';
+import { type ReactElement } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { ProjectCard } from '@/components/projects/project-card';
+import { StaleDataNotice, UnavailableDataNotice } from '@/components/freshness/freshness-notices';
 import { api } from '@/lib/api';
 import type { Project } from '@/lib/types';
-import { getErrorMessage } from './page-errors';
+import { useFreshCollection, describeFailure } from '@/lib/freshness/use-fresh-collection';
+import { validateProjectCollection } from '@/lib/freshness/validators';
 
 export function ProjectsPage(): ReactElement {
   const navigate = useNavigate();
-  const [projects, setProjects] = useState<Project[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
-
-  useEffect(() => {
-    let cancelled = false;
-
-    void api<Project[]>('/api/projects')
-      .then((response) => {
-        if (cancelled) return;
-        setProjects(response);
-      })
-      .catch((caught: unknown) => {
-        if (cancelled) return;
-        setError(getErrorMessage(caught, 'Failed to load projects.'));
-      })
-      .finally(() => {
-        if (cancelled) return;
-        setLoading(false);
-      });
-
-    return () => {
-      cancelled = true;
-    };
-  }, []);
+  const projects = useFreshCollection<Project[]>({
+    source: 'gateway:/api/projects',
+    fetcher: (signal) => api<unknown>('/api/projects', { signal }),
+    validate: validateProjectCollection,
+    // Projects carry workspace identity (userId) that is only knowable from
+    // the payload itself, so a restored entry cannot be scope-checked before
+    // display. Conservative choice: no last-known restore for this surface;
+    // cross-workspace switching is still invalidated at verification time.
+  });
+  const retry = (): void => {
+    void projects.revalidate();
+  };
 
   return (
-    <div className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
+    <div
+      data-freshness={projects.freshness}
+      className="flex min-h-screen flex-col px-4 py-6 sm:px-6"
+    >
       <header className="mb-6 border-b px-1 pb-3">
         <h1 className="text-2xl font-semibold">Projects</h1>
       </header>
 
-      {error ? (
-        <div role="alert" className="mb-6 rounded-lg border border-error/40 px-4 py-3 text-sm">
-          {error}
+      {projects.freshness === 'stale' && projects.snapshot ? (
+        <div className="mb-6">
+          <StaleDataNotice label={projects.snapshot} onRetry={retry} />
         </div>
       ) : null}
 
-      {loading ? (
+      {projects.freshness === 'unknown' ? (
         <p className="py-8 text-center text-sm text-text-muted">Loading projects...</p>
-      ) : projects.length === 0 ? (
+      ) : projects.freshness === 'unavailable' ? (
+        <UnavailableDataNotice
+          title="Projects"
+          detail={describeFailure(projects.failure)}
+          onRetry={retry}
+        />
+      ) : projects.data !== null && projects.data.length === 0 ? (
         <div className="py-12 text-center">
           <h2 className="text-lg font-medium text-text-secondary">No projects yet</h2>
           <p className="mt-1 text-sm text-text-muted">
@@ -56,7 +54,7 @@ export function ProjectsPage(): ReactElement {
         </div>
       ) : (
         <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-3">
-          {projects.map((project) => (
+          {(projects.data ?? []).map((project) => (
             <ProjectCard
               key={project.id}
               project={project}

apps/web/src/spa/pages/tasks.spec.tsx

@@ -3,6 +3,9 @@ import { createRoot, type Root } from 'react-dom/client';
 import { createMemoryRouter, RouterProvider, type RouteObject } from 'react-router-dom';
 import { afterAll, afterEach, beforeAll, describe, expect, it, vi } from 'vitest';
 import { taskFixtures } from './page-fixtures';
+import { acceptSnapshot, DEFAULT_FRESHNESS_POLICY } from '@/lib/freshness/model';
+import { writeSnapshotCache } from '@/lib/freshness/snapshot-cache';
+import { validateTaskCollection } from '@/lib/freshness/validators';
 
 const { apiMock } = vi.hoisted(() => ({
   apiMock: vi.fn(),
@@ -48,6 +51,7 @@ afterEach(async () => {
   document.body.replaceChildren();
   root = null;
   apiMock.mockReset();
+  sessionStorage.clear();
 });
 
 async function renderTasksPage(): Promise<void> {
@@ -72,6 +76,13 @@ function clickButtonByText(text: string): void {
   button.dispatchEvent(new MouseEvent('click', { bubbles: true }));
 }
 
+/** Flush pending promise callbacks inside the act environment. */
+async function flushAct(): Promise<void> {
+  await act(async () => {
+    await Promise.resolve();
+  });
+}
+
 describe('TasksPage', () => {
   it('shows a visible loading state before the tasks request settles', async () => {
     const deferred = createDeferred<typeof taskFixtures>();
@@ -132,7 +143,7 @@ describe('TasksPage', () => {
     expect(container.textContent).toContain('Wire list and kanban modal interactions');
   });
 
-  it('renders a visible alert when the tasks request fails', async () => {
+  it('renders a failed fetch as an explicit unavailable state, never an empty healthy board', async () => {
     apiMock.mockRejectedValueOnce(new Error('Tasks request failed'));
 
     await renderTasksPage();
@@ -140,5 +151,80 @@ describe('TasksPage', () => {
     const alert = container.querySelector('[role="alert"]');
     expect(alert).toBeTruthy();
     expect(alert?.textContent).toContain('Tasks request failed');
+    expect(alert?.textContent).toContain('not an empty result');
+
+    // Negative controls: no board, no healthy empty-state markers, and the
+    // surface is marked unavailable rather than current.
+    expect(container.textContent).not.toContain('Not Started');
+    expect(container.textContent).not.toContain('No tasks');
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'unavailable',
+    );
+  });
+
+  it('recovers to a current board after retrying a failed fetch', async () => {
+    apiMock
+      .mockRejectedValueOnce(new Error('Tasks request failed'))
+      .mockResolvedValueOnce(taskFixtures);
+
+    await renderTasksPage();
+    expect(container.querySelector('[role="alert"]')).toBeTruthy();
+
+    await act(async () => {
+      clickButtonByText('Retry');
+    });
+    await flushAct();
+
+    expect(container.querySelector('[role="alert"]')).toBeNull();
+    expect(container.textContent).toContain('Not Started');
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'current',
+    );
+  });
+
+  it('labels restored last-known data as stale with source, version, and age until verified', async () => {
+    // Seed a last-known snapshot fetched five minutes ago; the page must
+    // render it only under an explicit staleness label while the fetch is
+    // still in flight.
+    const restored = acceptSnapshot({
+      value: taskFixtures,
+      validate: validateTaskCollection,
+      previous: null,
+      policy: DEFAULT_FRESHNESS_POLICY,
+      source: 'gateway:/api/tasks',
+      now: Date.now() - 5 * 60_000,
+    });
+    if (restored.outcome !== 'accepted') throw new Error('fixture setup failed');
+    writeSnapshotCache('tasks', restored.snapshot);
+
+    const deferred = createDeferred<typeof taskFixtures>();
+    apiMock.mockReturnValueOnce(deferred.promise);
+
+    await renderTasksPage();
+
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'stale',
+    );
+    const banner = container.querySelector('[role="status"]');
+    expect(banner?.textContent).toContain('last-known');
+    expect(banner?.textContent).toContain('may be out of date');
+    expect(banner?.textContent).toContain('gateway:/api/tasks');
+    expect(banner?.textContent).toContain('snapshot v1');
+    expect(banner?.textContent).toContain('5m ago');
+
+    // Last-known data still renders as situational awareness under the label.
+    expect(container.textContent).toContain('Route /tasks');
+    expect(container.textContent).not.toContain('Loading tasks...');
+
+    // Verification lands: the banner clears and the surface becomes current.
+    await act(async () => {
+      deferred.resolve(taskFixtures);
+      await deferred.promise;
+    });
+
+    expect(container.querySelector('[role="status"]')).toBeNull();
+    expect(container.querySelector('[data-freshness]')?.getAttribute('data-freshness')).toBe(
+      'current',
+    );
   });
 });

apps/web/src/spa/pages/tasks.tsx

@@ -1,45 +1,32 @@
-import { useEffect, useState, type ReactElement } from 'react';
+import { useState, type ReactElement } from 'react';
 import { KanbanBoard } from '@/components/tasks/kanban-board';
 import { TaskDetailModal } from '@/components/tasks/task-detail-modal';
 import { TaskListView } from '@/components/tasks/task-list-view';
+import { StaleDataNotice, UnavailableDataNotice } from '@/components/freshness/freshness-notices';
 import { api } from '@/lib/api';
 import { cn } from '@/lib/cn';
 import type { Task } from '@/lib/types';
-import { getErrorMessage } from './page-errors';
+import { useFreshCollection, describeFailure } from '@/lib/freshness/use-fresh-collection';
+import { validateTaskCollection } from '@/lib/freshness/validators';
 
 type ViewMode = 'list' | 'kanban';
 
 export function TasksPage(): ReactElement {
-  const [tasks, setTasks] = useState<Task[]>([]);
+  const tasks = useFreshCollection<Task[]>({
+    source: 'gateway:/api/tasks',
+    fetcher: (signal) => api<unknown>('/api/tasks', { signal }),
+    validate: validateTaskCollection,
+    cacheKey: 'tasks',
+  });
   const [view, setView] = useState<ViewMode>('kanban');
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
   const [selectedTask, setSelectedTask] = useState<Task | null>(null);
 
-  useEffect(() => {
-    let cancelled = false;
-
-    void api<Task[]>('/api/tasks')
-      .then((response) => {
-        if (cancelled) return;
-        setTasks(response);
-      })
-      .catch((caught: unknown) => {
-        if (cancelled) return;
-        setError(getErrorMessage(caught, 'Failed to load tasks.'));
-      })
-      .finally(() => {
-        if (cancelled) return;
-        setLoading(false);
-      });
-
-    return () => {
-      cancelled = true;
-    };
-  }, []);
+  const retry = (): void => {
+    void tasks.revalidate();
+  };
 
   return (
-    <div className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
+    <div data-freshness={tasks.freshness} className="flex min-h-screen flex-col px-4 py-6 sm:px-6">
       <header className="mb-6 flex items-center justify-between gap-4 border-b px-1 pb-3">
         <h1 className="text-2xl font-semibold">Tasks</h1>
         <div className="flex rounded-lg border border-surface-border">
@@ -70,18 +57,24 @@ export function TasksPage(): ReactElement {
         </div>
       </header>
 
-      {error ? (
-        <div role="alert" className="mb-6 rounded-lg border border-error/40 px-4 py-3 text-sm">
-          {error}
+      {tasks.freshness === 'stale' && tasks.snapshot ? (
+        <div className="mb-6">
+          <StaleDataNotice label={tasks.snapshot} onRetry={retry} />
         </div>
       ) : null}
 
-      {loading ? (
+      {tasks.freshness === 'unknown' ? (
         <p className="py-8 text-center text-sm text-text-muted">Loading tasks...</p>
+      ) : tasks.freshness === 'unavailable' ? (
+        <UnavailableDataNotice
+          title="Tasks"
+          detail={describeFailure(tasks.failure)}
+          onRetry={retry}
+        />
       ) : view === 'kanban' ? (
-        <KanbanBoard tasks={tasks} onTaskClick={setSelectedTask} />
+        <KanbanBoard tasks={tasks.data ?? []} onTaskClick={setSelectedTask} />
       ) : (
-        <TaskListView tasks={tasks} onTaskClick={setSelectedTask} />
+        <TaskListView tasks={tasks.data ?? []} onTaskClick={setSelectedTask} />
       )}
 
       {selectedTask ? (

docs/ADMIN-GUIDE/README.md

@@ -9,19 +9,19 @@ This book is the canonical home for installation, configuration, deployment, rou
 - [Documentation atlas](../README.md) — placement rules and source-of-truth boundaries.
 - [Documentation sitemap](../SITEMAP.md) — resolvable current navigation and authority-gated migration summary.
 - [Product requirements](../PRD.md) — normative requirements, currently marked draft.
-- [Operations index](operations/README.md) — current local procedures, unattended fleet first-start handling, and explicitly held operational outlines.
+- [Operations index](operations/README.md) — current local procedures and explicitly held operational outlines.
 - [Security index](security/README.md) — current SSO provider configuration.
 
 ## Chapter map
 
-| Chapter                               | Scope                                                               | Status                                                                                         |
-| ------------------------------------- | ------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- |
-| `installation/`                       | Prerequisites, installation, and first deployment.                  | Scaffold only.                                                                                 |
-| `configuration/`                      | Environment, provider, tier, and runtime configuration.             | Scaffold only.                                                                                 |
-| `deployment/`                         | Topologies, rollout, migration, and upgrade procedures.             | Scaffold only.                                                                                 |
-| [`operations/`](operations/README.md) | Health, observability, routine operation, and maintenance.          | Local upgrade/recovery and fleet first start are current; connector lease operations are held. |
-| [`security/`](security/README.md)     | Authentication, authorization, SSO, secrets, and security controls. | SSO provider guide is current; other pages are planned.                                        |
-| `recovery/`                           | Incident response, backup, rollback, and recovery.                  | Scaffold only.                                                                                 |
+| Chapter                               | Scope                                                               | Status                                                                  |
+| ------------------------------------- | ------------------------------------------------------------------- | ----------------------------------------------------------------------- |
+| `installation/`                       | Prerequisites, installation, and first deployment.                  | Scaffold only.                                                          |
+| `configuration/`                      | Environment, provider, tier, and runtime configuration.             | Scaffold only.                                                          |
+| `deployment/`                         | Topologies, rollout, migration, and upgrade procedures.             | Scaffold only.                                                          |
+| [`operations/`](operations/README.md) | Health, observability, routine operation, and maintenance.          | Local upgrade/recovery is current; connector lease operations are held. |
+| [`security/`](security/README.md)     | Authentication, authorization, SSO, secrets, and security controls. | SSO provider guide is current; other pages are planned.                 |
+| `recovery/`                           | Incident response, backup, rollback, and recovery.                  | Scaffold only.                                                          |
 
 Every promoted page must be added to this index and to [`SITEMAP.md`](../SITEMAP.md) in the same migration slice.
 

docs/ADMIN-GUIDE/operations/README.md

@@ -5,7 +5,6 @@
 ## Current procedures
 
 - [Upgrade safety and recovery](upgrade-safety-and-recovery.md) — installed-CLI and local-PGlite upgrade, rollback, and framework-configuration recovery.
-- [Fleet unattended first start](fleet-unattended-first-start.md) — systemd/no-TTY identity initialization, failure handling, and isolated verification.
 
 ## Held procedures
 

docs/ADMIN-GUIDE/operations/fleet-unattended-first-start.md

@@ -1,70 +0,0 @@
-# Fleet Unattended First-Start Operations
-
-> **Status:** Current after issue #1264 lands. This runbook covers only Mosaic's first-run identity
-> gate; it does not install runtimes or credentials.
-
-## Operational contract
-
-A systemd fleet unit launches under a sanitized environment with no TTY. The generated environment
-sets `MOSAIC_AGENT_NAME`; Mosaic resolves that exact value against the canonical installed roster
-before writing identity files.
-
-If top-level identity contracts are missing, Mosaic atomically seeds them from the shipped generic
-sources:
-
-| Destination            | Source                          | New-file mode |
-| ---------------------- | ------------------------------- | ------------- |
-| `$MOSAIC_HOME/SOUL.md` | `$MOSAIC_HOME/defaults/SOUL.md` | `0600`        |
-| `$MOSAIC_HOME/USER.md` | `$MOSAIC_HOME/defaults/USER.md` | `0600`        |
-
-Creation is no-clobber and safe under concurrent seat starts. Existing regular files remain
-byte-for-byte and mode-for-mode unchanged. The runtime composer then injects the exact roster name
-and class; the generic source files grant no seat authority.
-
-## Failure handling
-
-The fleet path never falls back to an interactive wizard. It exits nonzero before runtime execution
-when:
-
-- `MOSAIC_AGENT_NAME` is not an exact roster member;
-- a defined ambient `MOSAIC_AGENT_CLASS` is blank/whitespace or disagrees with that member's
-  canonical class;
-- a missing destination has no safe regular default source;
-- a source or existing destination is a symlink (including dangling), directory, unavailable, or over the bounded size;
-- the fleet communications helper/roster cannot be validated; or
-- `USER.md` cannot be securely re-read at the point where its content is composed.
-
-Diagnostics begin with:
-
-```text
-[mosaic] ERROR: unattended fleet identity initialization failed: ...
-```
-
-Repair the exact named source, destination, roster, or helper and retry only that roster member. Do
-not delete or replace an existing personalized `SOUL.md`/`USER.md` merely to clear the check.
-
-## Verification without a live seat
-
-The source gate is:
-
-```bash
-pnpm --filter @mosaicstack/mosaic... build && \
-  pnpm --filter @mosaicstack/mosaic exec vitest run \
-    src/commands/launch-first-start.spec.ts
-```
-
-The build leg is load-bearing: `dist/` is ignored, so a direct Vitest invocation could otherwise run
-absent or stale CLI output. The gate runs the exact-source built CLI in subprocesses with piped stdin,
-temporary homes, a canonical fixture roster, fake runtime/broker executables, and no provider call. It
-covers no-TTY launch, exact identity,
-private modes, no-clobber, missing/symlink defaults, unknown members, blank/mismatched class,
-portable standalone composition/wizard preservation, and concurrent first start.
-
-Do not use this fixture as proof that a real provider credential is present or that a package has
-been deployed. Those require separate environment-specific evidence.
-
-## Related
-
-- [User workflow](../../USER-GUIDE/workflows/fleet-unattended-first-start.md)
-- [Developer architecture](../../DEVELOPER-GUIDE/architecture/fleet-first-start-identity.md)
-- [Verification report](../../reports/qa/2026-08-16-1264-unattended-first-start.md)

docs/DEVELOPER-GUIDE/README.md

@@ -26,7 +26,6 @@ This book is the canonical home for architecture, package and application guides
 
 - [Lease-broker operations and verification](testing/lease-broker-operations.md) — safe static/test commands plus explicitly held live operations.
 - [Channel adapters](integrations/channel-adapters.md) — current shared contracts and Discord reference boundary; future adapter parity is draft.
-- [Fleet first-start identity](architecture/fleet-first-start-identity.md) — no-TTY launch boundary, roster authority, and no-clobber filesystem design.
 
 Every promoted page must be added to this index and to [`SITEMAP.md`](../SITEMAP.md) in the same migration slice.
 

docs/DEVELOPER-GUIDE/architecture/README.md

@@ -11,7 +11,6 @@ This chapter is the canonical home for Mosaic Stack's system model, component bo
 - [`mutator-class-gate.md`](mutator-class-gate.md) — default-deny tool authorization, runtime adapters, launch choke point, and parser assurance boundary.
 - [`compaction-revocation.md`](compaction-revocation.md) — Claude/Pi observer lifecycle, runtime generations, revocation, and the bounded residual stale window.
 - [`channel-protocol.md`](channel-protocol.md) — current shared channel DTOs and Discord compatibility baseline, with unimplemented adapter work explicitly marked draft.
-- [`fleet-first-start-identity.md`](fleet-first-start-identity.md) — roster-owned identity bootstrap for concurrent no-TTY fleet launches.
 - [`decisions/mos-runtime-portability-m1.md`](decisions/mos-runtime-portability-m1.md) — current logical identity, connector lease, grant, audit, and fencing decision; connector activation remains held.
 
 These pages are current security-contract references and are consumed by the lease-broker acceptance suites. Their live deployment gaps remain explicitly labeled in the pages; this migration does not change runtime behavior.

docs/DEVELOPER-GUIDE/architecture/fleet-first-start-identity.md

@@ -1,81 +0,0 @@
-# Fleet First-Start Identity Boundary
-
-> **Status:** Implemented by issue #1264. Requirements: `FCM-REQ-12`, `AC-FCM-10`.
-
-## Problem
-
-`launchRuntime()` called `checkSoul()` before runtime execution. A missing top-level `SOUL.md`
-caused `checkSoul()` to spawn a child `mosaic wizard` with inherited stdio. Under a systemd-created
-fleet pane with no TTY, that child blocked or failed before the runtime boundary even though generic
-`defaults/SOUL.md` and `defaults/USER.md` already shipped in the same `MOSAIC_HOME`.
-
-## Chosen boundary
-
-The fix remains at `checkSoul()` and does not add flags to `yolo`, fleet commands, systemd units, or
-`start-agent-session.sh`:
-
-1. A present, nonblank, whitespace-exact `MOSAIC_AGENT_NAME` selects the fleet path.
-2. `resolveFleetIdentity()` must resolve that exact member through the existing roster/helper
-   boundary, and any defined `MOSAIC_AGENT_CLASS` (including blank/whitespace) must canonicalize to
-   the roster class, before any identity seed. Only undefined means absent.
-3. `lstatSync()` preflights every destination directory entry without following links, so a dangling
-   link is rejected before its counterpart can be published.
-4. Safe bounded snapshots are read from only the missing contracts under `defaults/`.
-5. Each snapshot is written to a random owner-private temporary file in `MOSAIC_HOME`.
-6. `linkSync()` publishes the complete file without overwriting an existing path. `EEXIST` means a
-   concurrent seat or operator won; the existing path is preserved and revalidated.
-7. Temporary files are removed, and both installed contracts are re-opened through the no-symlink
-   secure-file reader before launch continues.
-8. `composeContract()` independently re-resolves the roster, securely reads fleet `USER.md` through
-   a Linux descriptor at the point of use, and injects exact member identity and communications data.
-
-A standalone launch with no `MOSAIC_AGENT_NAME` retains the portable tolerant USER read and the
-interactive wizard. Fleet-only no-follow enforcement must not make supported standalone macOS
-composition depend on Linux `/proc` descriptor traversal.
-
-## Identity and authority
-
-The copied defaults deliberately say “Mosaic agent”; they are a generic behavioral base. They are
-not the source of a fleet seat's identity. The canonical roster controls:
-
-- exact agent/session name;
-- canonical role/class and persona;
-- peer rows and point of contact;
-- tmux socket and helper target; and
-- communications generation.
-
-An unknown/padded ambient name, mismatched class, or explicitly blank/whitespace class fails before
-any file is seeded. This avoids replacing the interactive wall with a fleet of indistinguishable or
-ambiently invented identities.
-
-## Concurrency and filesystem properties
-
-- Sources and final destinations are bounded regular files beneath `MOSAIC_HOME`; target and dangling
-  symlinks are not followed.
-- New files have mode `0600`.
-- Hard-link publication is same-filesystem, atomic, and no-clobber.
-- A temporary path is removed only when this process successfully created it.
-- All required source snapshots are validated before the first destination is published, preventing
-  a missing second default from leaving a partial seed.
-- Existing operator files are never chmodded or rewritten.
-
-## Verification
-
-`src/commands/launch-first-start.spec.ts` uses the production-kind boundary: the real built CLI in a
-no-TTY subprocess, not a direct wizard test. The package `test:vitest` gate builds Mosaic before
-Vitest, while the clean-checkout command builds its workspace dependencies first, so ignored
-`dist/cli.js` cannot be absent or stale. A fake lease launcher records whether execution reached the
-runtime boundary and captures the composed prompt.
-Positive and negative cases prove the check can both proceed and refuse. Fleet composition coverage
-replaces a previously validated `USER.md` with an external symlink and proves point-of-use refusal;
-a standalone unreadable-optional-USER case proves the portable tolerant branch remains separate.
-
-Real Pi authentication and provider task execution remain environment tests, not claims of this
-fixture.
-
-## Non-goals
-
-- Runtime installation or pane-PATH resolution (#1256/#1258).
-- The held `~/.mosaic` launch-composition layer in PR #1213.
-- Personalizing the operator's standalone identity without a wizard.
-- Changing fleet systemd or shell launcher code.

docs/PRD.md

@@ -146,29 +146,6 @@ lands. M0 consists only of these normative requirements, the complete task DAG,
 documentation IA checklist, and the legacy example/profile disposition inventory. Subsequent cards
 are defined in [docs/TASKS.md](./TASKS.md) and must remain one card/one PR.
 
-### Unattended fleet first-start amendment (#1264)
-
-`FCM-REQ-11` is reserved by #1256's concurrent runtime-preflight delivery. This amendment therefore
-uses the next non-colliding identifiers.
-
-1. `FCM-REQ-12`: A roster-owned fleet launch SHALL NOT invoke an interactive identity wizard when
-   top-level `SOUL.md` or `USER.md` is absent. It SHALL initialize only missing top-level identity
-   contracts from the shipped generic `defaults/` contracts without overwriting operator-owned
-   bytes. The canonical roster member remains the sole source of the seat's exact name and class;
-   generic defaults grant no fleet identity or authority. Missing or unsafe defaults SHALL fail
-   closed with actionable diagnostics before runtime execution. Non-fleet launches retain the
-   interactive identity flow.
-2. `AC-FCM-10`: A systemd-equivalent no-TTY test with a clean temporary Mosaic home SHALL prove a
-   named fleet seat reaches the runtime boundary without starting `mosaic wizard`, creates
-   byte-equal owner-private `SOUL.md` and `USER.md` seeds, and receives its exact roster name/class in
-   composed context. Tests SHALL also prove no-clobber behavior, concurrent/idempotent first start,
-   fail-closed invalid defaults, and preservation of the standalone interactive path.
-
-`ASSUMPTION:` `MOSAIC_AGENT_NAME` is the existing launch discriminator for roster-owned fleet
-processes. This amendment does not add a second fleet flag because generated fleet environments
-already set that value and the runtime composer independently resolves it against the canonical
-roster before execution.
-
 ---
 
 ## Exact Cross-Harness Fleet Communications Contract (#766)
@@ -1391,3 +1368,38 @@ All work is **alpha** (< 0.1.0) until Jason approves 0.1.0 beta release.
 10. ASSUMPTION: **Conversations and messages get their own PG tables** (not stored in brain's entity model). They follow a chat-specific schema with proper foreign keys to users and projects. Rationale: Chat has different access patterns (streaming, pagination, search) than brain entities.
 
 11. RESOLVED: **Pi handles all target LLM providers natively.** Anthropic, OpenAI/Codex, Z.ai, Ollama, LM Studio, and llama.cpp are all supported via Pi's built-in providers or `models.json` configuration with `openai-completions` API type. No custom provider adapters needed in @mosaicstack/agent — only configuration management.
+
+---
+
+## Release Integrity Workstream (RI, #1275)
+
+### Problem and objective
+
+At `next` 476db12b (review of 2026-08-17), publication from `next` is not bound to the full verification pipeline for the same commit: the publish pipeline's publish steps depend on `build` only, while ordinary push CI excludes `next`. Public Forge/MACP paths contain false-success placeholders: a stub executor that reports `completed` with exit zero, planning/remediation gates that execute literal `true`, a review gate that echoes an approving verdict, and a gate runner that treats empty commands and unimplemented CI-provider gates as passing. Shipping UI surfaces can render a failed fetch as an empty, healthy collection.
+
+Objective: for alpha 0.0.50, the release cannot publish, report, or display work state that the repository has not actually verified. Decisions SDLC-D-033 through SDLC-D-038 (Jason, 2026-08-17) scope this floor; full decision text and required-behavior lists live in jarvis-brain `docs/plans/2026-08-16_mosaic-stack-sdlc-protocol.md` and `data/decisions/mosaic-stack-sdlc-protocol.json`. This section restates only the normative requirements.
+
+### Normative requirements
+
+1. **RI-N1 Exact-commit publication verification (SDLC-D-034).** One canonical terminal verification command performs self-contained re-verification in the publish pipeline against the job's checked-out commit before any external publication effect. The command contains or invokes the complete mandatory verification set (semantic parity with the PR merge gate, including sanitization, upgrade-guard, typecheck, lint, format check, tests, and build); CI and publication do not maintain separate semantic checklists. Every publish step depends on the verification step in the executable pipeline DAG. Provider commit identity and `git rev-parse HEAD` must identify the same commit. Missing, skipped, cancelled, stale, or inconclusive checks fail closed. Documentation-only runs may skip publication but cannot bypass verification when a publication effect will occur. A negative control must prove that a broken check blocks every publish step.
+
+2. **RI-N2 Fail-closed Forge/MACP with explicit simulation (SDLC-D-035).** Simulation requires explicit caller intent (e.g. `--simulate`) and produces a distinct typed `simulated` state that can never satisfy dependencies, acceptance criteria, gates, merge, or release. Normal execution exits nonzero with a typed capability failure when a required executor, reviewer, command, or CI provider is absent — no stub completion, no literal-`true` gates, no synthetic approvals, no empty-command passes. A manual gate with no automation enters a waiting state; it does not pass. Positive tests prove explicit simulation still works; negative controls prove simulation and every missing-provider case cannot advance lifecycle state.
+
+3. **RI-N3 One transitional PRD authority (SDLC-D-036).** `@mosaicstack/prdy` structured storage under `docs/prdy/`, driven by `mosaic mission --plan`, is the authoritative PRD representation for the alpha. `mosaic prdy` either routes through the same application service or operates only as an explicit, named Markdown import/export adapter; `docs/PRD.md` is not a peer authority. `mission --plan` must persist the mission↔PRD linkage (mission id/version, PRD id/version, selected requirements). Markdown output is a generated view carrying source identity; editing it cannot mutate authority silently. Import is explicit, validated, and conflict-aware (proposed successor, never overwrite). Structural validity is separate from approval.
+
+4. **RI-N4 One quality-rails evaluator (SDLC-D-037).** The TypeScript quality-rails package is the sole authoritative evaluator. A complete probe inventory maps every current TypeScript and shell check to one canonical check with disposition (preserve/strengthen/retire, each named). Effective shell enforcement probes are absorbed before their independent paths retire; expected-file presence alone is not parity. The evaluator returns typed results (`passed`/`failed`/`blocked`/`error`/`not-applicable`) with check version, subject, and reason; missing implementation, missing input, unknown check, process error, timeout, or malformed output can never become `passed` or an unqualified skip. Check definitions and policy are versioned and digested. Shell commands become thin adapters with no separate verdict logic. The canonical terminal verification command (RI-N1) invokes this evaluator rather than duplicating its logic. Contract, parity, and negative-control tests are required, plus independent review of probe equivalence.
+
+5. **RI-N5 Consequence-aware stale UI (SDLC-D-038).** Mission Control distinguishes typed freshness states (`current`, `stale`, `partial`, `unknown`, `unavailable`) rather than inferring from empty arrays or null. A failed fetch never renders as an empty healthy collection. Last-known data may display for situational awareness only with source identity, version, and age visibly labeled; any derived completion/assurance/release verdict whose inputs are stale becomes `unknown`; all state-changing actions are disabled until fresh state loads and is revalidated. With no verified snapshot, surfaces show an explicit unavailable state. Cache corruption, cross-workspace data, schema mismatch, and version regression invalidate the snapshot. Tests cover the failure matrix (network, auth, malformed, partial, corruption, stale age, schema mismatch, recovery, stale-action rejection) with negative controls proving no case yields a current green verdict or enabled mutation.
+
+### Acceptance criteria
+
+- AC-RI-1: A push to `next` that fails any mandatory verification step publishes nothing (no npm package, no image), demonstrated by a checked-in negative control and by pipeline evidence on a real `next` publish run where the verification step is green and every publish step depends on it.
+- AC-RI-2: With no executor/reviewer/CI provider wired, Forge and MACP normal runs exit nonzero with typed capability failures; with `--simulate`, runs complete but every result is typed `simulated` and cannot satisfy any gate, dependency, or completion state — proven by unit tests including negative controls.
+- AC-RI-3: A PRD created or revised through either `mosaic mission --plan` or `mosaic prdy` resolves to one authority under `docs/prdy/` with stable identities and versions; the mission↔PRD linkage survives restart; a Markdown export is labeled as generated and cannot silently become a second writer; divergent legacy content blocks baseline claims until explicitly resolved — proven by contract tests.
+- AC-RI-4: `quality-rails check` through any entry point (TS CLI, framework shell adapter) returns the same typed verdict for the same subject; the probe inventory names every legacy check's disposition; a deliberately broken probe fails closed — proven by contract/parity/negative-control tests and independent review of probe equivalence.
+- AC-RI-5: No shipping surface renders a failed fetch as an empty healthy state; stale/partial/unavailable states are typed, labeled, and mutation-disabled — proven by the failure-matrix tests.
+- AC-RI-6: All cards merged to `next` via squash PR with terminal-green CI; release evidence for 0.0.50 records commit, verification run, and published artifacts.
+
+### Out of scope
+
+The canonical dispatcher/control-plane vertical slice (work graph, execution attempts, fenced leases, typed check-in, independent verifier dispatch) is decided post-alpha (SDLC-D-033, option B). Multi-pipeline verification certificates (SDLC-D-034 option B) are post-alpha. Full AF-1..AF-4 objective matrices and Mission Control portfolio surfaces are post-alpha.

docs/SITEMAP.md

@@ -38,13 +38,11 @@ These paths remain canonical because current source/tests consume them or becaus
 - [Quickstart](USER-GUIDE/getting-started/quickstart.md) — installed-CLI first-use route with local PGlite safety boundaries.
 - [Web dashboard](USER-GUIDE/product/web-dashboard.md) — current routes, views, chat persistence, settings, and admin behavior.
 - [Discord conversations](USER-GUIDE/workflows/discord-conversations.md) — current authorized parent-channel, thread, attachment, and control workflow.
-- [Fleet unattended first start](USER-GUIDE/workflows/fleet-unattended-first-start.md) — no-TTY identity bootstrap and exact roster identity.
 
 ## Administrator documentation
 
 - [Administrator operations](ADMIN-GUIDE/operations/README.md) — current local procedures and explicitly held outlines.
 - [Upgrade safety and recovery](ADMIN-GUIDE/operations/upgrade-safety-and-recovery.md) — installed-CLI/local-PGlite upgrade and framework recovery.
-- [Fleet unattended first-start operations](ADMIN-GUIDE/operations/fleet-unattended-first-start.md) — systemd identity initialization, refusal paths, and isolated verification.
 - [Mos connector lease operations](ADMIN-GUIDE/operations/mos-connector-lease-operations.md) — held/non-operative M1 outline while policy remains deny-all.
 - [Administrator security](ADMIN-GUIDE/security/README.md) — current security chapter index.
 - [SSO providers](ADMIN-GUIDE/security/sso-providers.md) — Authentik, WorkOS, and Keycloak configuration and discovery.
@@ -58,7 +56,6 @@ These paths remain canonical because current source/tests consume them or becaus
 - [Lease-broker security](DEVELOPER-GUIDE/architecture/lease-broker-security.md) — identity, ancestry, filesystem, observer, and residual boundaries.
 - [Whole mutator-class gate](DEVELOPER-GUIDE/architecture/mutator-class-gate.md) — default-deny tool authorization and launch choke point.
 - [Compaction revocation](DEVELOPER-GUIDE/architecture/compaction-revocation.md) — lifecycle observers, generation fencing, and residual stale window.
-- [Fleet first-start identity](DEVELOPER-GUIDE/architecture/fleet-first-start-identity.md) — roster authority and atomic no-clobber identity seeding.
 - [Architecture decisions](DEVELOPER-GUIDE/architecture/decisions/README.md) — implemented and accepted boundaries.
 - [Mos runtime portability M1](DEVELOPER-GUIDE/architecture/decisions/mos-runtime-portability-m1.md) — logical identity, connector lease, grants, audit, and fencing.
 - [Architecture RFCs](DEVELOPER-GUIDE/architecture/rfcs/README.md) — draft proposals without operational authority.
@@ -78,7 +75,6 @@ These paths remain canonical because current source/tests consume them or becaus
 - [Archived planning](archive/planning/README.md) — historical briefs, board reviews, and work-package specifications.
 - [Archived work records](archive/work-records/README.md) — historical task scratchpads without live consumers.
 - [P8-003 performance report](reports/qa/p8-003-performance-optimization.md) — historical implementation evidence, not a current SLO.
-- [Issue #1264 unattended fleet first-start verification](reports/qa/2026-08-16-1264-unattended-first-start.md) — RED/GREEN no-TTY CLI evidence and explicit untested bounds.
 - [Plans index](plans/README.md) — approved intent and implementation/audit plans.
 - [Documentation information-architecture design](plans/2026-08-10-docs-information-architecture-design.md) — approved documentation structure decision.
 - [Documentation catalog-audit plan](plans/2026-08-10-docs-catalog-audit.md) — evidence method and migration acceptance criteria.

docs/USER-GUIDE/README.md

@@ -11,7 +11,6 @@ This book is the canonical home for end-user workflows, user-visible behavior, p
 - [Quickstart](getting-started/quickstart.md) — install Mosaic, complete setup, and launch a session.
 - [Web dashboard](product/web-dashboard.md) — current routes, navigation, chat persistence, projects/tasks views, settings, and admin behavior.
 - [Discord conversations](workflows/discord-conversations.md) — current authorized parent-channel, thread, attachment, and control workflow.
-- [Fleet unattended first start](workflows/fleet-unattended-first-start.md) — no-TTY identity bootstrap, exact roster identity, and separate runtime prerequisites.
 
 ## Chapter map
 
@@ -19,7 +18,7 @@ This book is the canonical home for end-user workflows, user-visible behavior, p
 | ------------------ | ------------------------------------------------------------- | ---------------------------------------------------- |
 | `getting-started/` | First-use setup, orientation, and quickstarts.                | Quickstart is current; additional pages are planned. |
 | `concepts/`        | User-facing terminology, product concepts, and mental models. | Scaffold only.                                       |
-| `workflows/`       | Task-oriented procedures for using Mosaic Stack.              | Discord and fleet first-start workflows are current. |
+| `workflows/`       | Task-oriented procedures for using Mosaic Stack.              | Discord conversation workflow is current.            |
 | `product/`         | Current product surfaces and visible behavior.                | Web dashboard reference is current.                  |
 | `troubleshooting/` | User-visible failures, diagnostics, and fixes.                | Scaffold only.                                       |
 
@@ -28,7 +27,6 @@ This book is the canonical home for end-user workflows, user-visible behavior, p
 - [Quickstart](getting-started/quickstart.md) — the verified installed-CLI first-use path.
 - [Web dashboard](product/web-dashboard.md) — verified current Next.js dashboard behavior and limitations.
 - [Discord conversations](workflows/discord-conversations.md) — verified current Discord user workflow.
-- [Fleet unattended first start](workflows/fleet-unattended-first-start.md) — verified no-TTY first-start behavior and prerequisite boundaries.
 
 Every promoted page must be added to this index and to [`SITEMAP.md`](../SITEMAP.md) in the same migration slice.
 

docs/USER-GUIDE/workflows/fleet-unattended-first-start.md

@@ -1,61 +0,0 @@
-# Fleet Unattended First Start
-
-> **Status:** Current for roster-owned local fleet launches after issue #1264 lands. Runtime
-> installation and provider authentication remain separate prerequisites.
-
-A fleet seat started by systemd has no operator at its pane. On its first launch, Mosaic must not
-stop at the interactive identity wizard.
-
-## What happens on first start
-
-When `MOSAIC_AGENT_NAME` names an exact member of the installed fleet roster and top-level identity
-contracts are absent, the launcher:
-
-1. validates the exact roster member, its canonical class, and the installed fleet communications
-   helper;
-2. reads the shipped generic contracts from
-   `~/.config/mosaic/defaults/SOUL.md` and `defaults/USER.md`;
-3. creates only the missing top-level `SOUL.md` and `USER.md` as owner-private files;
-4. preserves any existing top-level identity file byte-for-byte; and
-5. launches the runtime with the roster member's exact agent/session name and role/class in composed
-   context.
-
-The generic defaults do **not** make every seat the same identity. They provide a shared behavioral
-base. The canonical roster row supplies each seat's exact name, class, peers, socket, and authority.
-
-## Operator behavior
-
-A normal standalone launch without a fleet identity retains its portable configuration path and still
-uses the interactive wizard when `SOUL.md` is absent:
-
-```bash
-mosaic pi
-```
-
-A roster-owned seat may be started without attaching to its pane:
-
-```bash
-mosaic fleet start <exact-roster-name>
-```
-
-Mosaic refuses before runtime execution if the requested member is absent, its explicitly supplied
-ambient class is blank or conflicts with the roster, a required default is missing or unsafe, or an existing identity contract
-is not a safe regular file. Repair the named component and retry the same exact roster member; do not
-copy another seat's personalized identity.
-
-## Separate prerequisites
-
-This behavior clears the Mosaic identity-wizard wall only. A clean host still needs:
-
-- the declared runtime installed on the pane PATH;
-- the fleet transport and generated unit assets; and
-- runtime/provider authentication appropriate to that seat.
-
-Those checks are separate so a successful identity bootstrap is not reported as a fully authenticated
-agent session.
-
-## Related
-
-- [Administrator runbook](../../ADMIN-GUIDE/operations/fleet-unattended-first-start.md)
-- [Developer architecture](../../DEVELOPER-GUIDE/architecture/fleet-first-start-identity.md)
-- [Verification report](../../reports/qa/2026-08-16-1264-unattended-first-start.md)

docs/release-integrity/TASKS.md

@@ -0,0 +1,42 @@
+# Tasks — Release Integrity Workstream (RI-050, #1275)
+
+> Single-writer: the RI-050 orchestrator (jarvis, dragon-lin) only. Workers read but never modify.
+>
+> **Mission:** alpha 0.0.50 release-integrity floor (decisions SDLC-D-033..038).
+> **PRD:** [docs/PRD.md § Release Integrity Workstream](../PRD.md#release-integrity-workstream-ri-1275)
+> **Issue:** #1275 (remains open until RI-V-001 closes)
+> **Base branch:** `next` (all cards branch from `origin/next`, squash-merge via PR)
+>
+> **Execution note:** the `agent` column uses `pi-glm-5.3` — outside the pipeline-cron model
+> table on purpose. This workstream is executed by jarvis on dragon-lin with local pi workers
+> (`pi --model zai/glm-5.3:high`); pipeline crons must not auto-claim these rows.
+>
+> **Status values:** `not-started` | `in-progress` | `done` | `blocked` | `failed` | `needs-qa`
+> `done` requires: repo quality gates green, independent review recorded, terminal-green CI on
+> the PR head, squash merge to `next`, and acceptance evidence in notes.
+
+| id       | status      | description                                                                                                                                                                                                                                                                      | issue | agent      | repo              | branch                            | depends_on                                                 | estimate | notes                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
+| -------- | ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----- | ---------- | ----------------- | --------------------------------- | ---------------------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| RI-0-001 | done        | Bootstrap: issue #1275, PRD section, this DAG, scratchpad (docs only)                                                                                                                                                                                                            | #1275 | pi-glm-5.3 | mosaicstack/stack | docs/ri-050-mission-bootstrap     | —                                                          | 6K       | PR #1276 (head 758659dd): docs-only, CI green (2475). Review requested from fargo. Merges first (no publish run).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
+| RI-1-001 | done        | RI-N1: canonical terminal verification command + publish-pipeline exact-commit gate (every publish step depends on verify; commit identity check; fail closed)                                                                                                                   | #1275 | pi-glm-5.3 | mosaicstack/stack | feat/ri-050-publish-gate          | RI-0-001                                                   | 25K      | PR #1277 (head 46784c8d): CI GREEN at head after serialized retry (pipeline 2476, 2026-08-18) - earlier red was CI-agent contention (web SPA timeouts under concurrent pipelines), not code. Review requested from fargo at pinned head (comms 20260818T021025Z).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
+| RI-1-002 | done        | RI-N1 negative control: checked-in tests proving a broken mandatory check blocks every publish step and that DAG edges cannot be bypassed                                                                                                                                        | #1275 | pi-glm-5.3 | mosaicstack/stack | test/ri-050-publish-gate-negative | RI-1-001                                                   | 12K      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+| RI-2-001 | done        | RI-N2 (Forge): remove stub-executor false success; `--simulate` typed `simulated` results that satisfy nothing; literal-`true` gates and echo-review replaced with real gates or typed waiting-for-authority                                                                     | #1275 | pi-glm-5.3 | mosaicstack/stack | fix/ri-050-forge-fail-closed      | RI-0-001                                                   | 20K      | Independent review APPROVED 2026-08-17 (Gitea review 172 on PR #1278, head 99b8f6ea; reviewing seat fargo — recorded under shared host principal mos-dt-0, provenance correction posted by fred; wrapper gap filed by fred). Executed at head: forge tests 116/116, lint green, typecheck green after building macp dist (minimal-install artifact, not a defect), workspace typecheck 45/45, no external type consumers of the changed interfaces. CI red = known lane-wide fleet-test failure only, carries no information about this change (fred, log-content analysis, pipelines 2456-2458). Non-blocking finding: README L141-143 + skills/mosaic-forge/SKILL.md document bare forge run/resume, which now fails closed — fast-follow docs touch. Merge queued behind #1270. UPDATE 2026-08-18: #1270 merged; CI GREEN at head 4917df1f via serialized retry (pipeline 2477) - root cause of prior reds was CI-agent contention (web SPA timeouts under concurrent pipelines), superseding the fleet-test-failure theory. |
+| RI-2-002 | done        | RI-N2 (MACP): gate runner fails closed on empty commands, stub executors, and unimplemented CI-provider gates unless explicit simulate; typed capability failures                                                                                                                | #1275 | pi-glm-5.3 | mosaicstack/stack | fix/ri-050-macp-fail-closed       | RI-0-001                                                   | 15K      | PR #1293 (head 2097379e): CI green (pipeline 2465), independent review APPROVED (Gitea review 173, jarvis seat, 2026-08-17) - macp 109/109 verified at head. Merge queued behind #1276/#1277/#1278.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
+| RI-3-001 | done        | RI-N4: complete probe inventory mapping every TS and shell quality-rail check to one canonical check with disposition (preserve/strengthen/retire, each named)                                                                                                                   | #1275 | pi-glm-5.3 | mosaicstack/stack | docs/ri-050-qr-probe-inventory    | RI-0-001                                                   | 12K      | PR #1302 (head e06a47fac591): CI green (2484), independent review APPROVED (Gitea review 187, fargo seat, 2026-08-18) — 54 rows / 21 canonical checks / dispositions 43-2-9-0 verified by row-count and code spot-checks. Merged by fargo at pinned head.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
+| RI-3-002 | not-started | RI-N4: TS evaluator absorbs effective shell probes; typed results (passed/failed/blocked/error/not-applicable) with versioned digested check definitions; shell commands become thin adapters; contract/parity/negative-control tests                                            | #1275 | pi-glm-5.3 | mosaicstack/stack | feat/ri-050-qr-evaluator          | RI-3-001                                                   | 30K      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+| RI-4-001 | in-progress | RI-N3: one PRD application service — `mission --plan` persists mission↔PRD linkage (ids/versions/selected requirements); `mosaic prdy` routes through the service or becomes a named import/export adapter; Markdown is a labeled generated view; explicit conflict-aware import | #1275 | pi-glm-5.3 | mosaicstack/stack | feat/ri-050-prd-authority         | RI-0-001                                                   | 35K      | PR #1294 (head 8d258e1d): CI green (pipeline 2466), independent review APPROVED (Gitea review 174, jarvis seat, 2026-08-17) - prdy 20/20 + command specs 9/9 at head. Merge queued behind #1276/#1277/#1278.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
+| RI-5-001 | done        | RI-N5: typed freshness states (current/stale/partial/unknown/unavailable); no failed-fetch-renders-empty; stale derived verdicts → unknown; mutations disabled when stale; failure-matrix tests                                                                                  | #1275 | pi-glm-5.3 | mosaicstack/stack | feat/ri-050-web-stale-safety      | RI-0-001                                                   | 25K      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+| RI-V-001 | not-started | Final verification + release evidence: all cards verified merged, negative controls demonstrated, real `next` publish run green on exact commit, evidence pack recorded                                                                                                          | #1275 | pi-glm-5.3 | mosaicstack/stack | docs/ri-050-release-evidence      | RI-1-002, RI-2-001, RI-2-002, RI-3-002, RI-4-001, RI-5-001 | 10K      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+
+## Dispatch waves (max 2 parallel workers)
+
+1. RI-1-001 + RI-2-001
+2. RI-2-002 + RI-4-001
+3. RI-3-001 + RI-5-001
+4. RI-1-002 + RI-3-002
+5. RI-V-001
+
+## Budget
+
+Derived soft cap: 250K tokens (no explicit cap given). Projected total: 190K.
+Conservative mode (1 worker) above 70% projected; freeze above 90%.

docs/release-integrity/probe-inventory.md

@@ -0,0 +1,186 @@
+# Quality-Rails Probe Inventory — RI-3-001
+
+- **Task:** RI-3-001 (SDLC-D-037 first half; PRD § Release Integrity Workstream, RI-N4)
+- **Date:** 2026-08-18
+- **Base:** `origin/next` @ `8199261c` (branch `docs/ri-050-qr-probe-inventory`)
+- **Follow-up:** RI-3-002 consumes the dispositions here when building the single TS evaluator.
+
+## 0. Scope and method
+
+Every mechanism in this repository that verifies a quality, integrity, safety, or release
+property — TypeScript checks, shell probes, pipeline steps, git hooks, and installer-side
+assertions — gets one row. Each row's "what it actually verifies" was written from the
+probe's **code**, not its name or docs. Framework tool unit/regression suites (git wrappers,
+wake, tmux, orchestrator, …) are treated as one enforcement surface (`test:framework-shell`)
+because they test tool behavior rather than repo quality; their wiring integrity is itself
+guarded by `check-test-enumeration.sh`, and the quality-relevant members are rowed
+individually.
+
+**Kinds:** `ts` (TypeScript/Node check), `shell` (bash/python probe), `pipeline-step`
+(exists only inside a Woodpecker pipeline).
+
+**Enforcement points:** `local` (operator-invoked), `pre-commit`, `pre-push`,
+`CI ci.yml#<step>`, `publish.yml#<step>` (CI on push to main/next), `turbo <task>`,
+`agent-runtime` (framework hooks on an agent host), `installer` (host install path),
+`unwired`.
+
+**Dispositions** (recommendations for RI-3-002): `preserve` (keep as-is; already the
+canonical or a correct guard-of-the-guard), `strengthen` (keep, but a concrete gap must
+close — usually absorption into the TS evaluator), `strengthen (review)` (viable retirement
+candidate once the evaluator absorbs it; do not retire yet). Note: RI-N4 requires that
+effective shell probes be **absorbed before** their independent paths retire — no row here
+is marked `retire` because no absorption exists yet.
+
+## 1. Inventory
+
+### 1.1 Repo-level gate tasks (pnpm / turbo)
+
+| check                                 | location                                                                             | kind | what it actually verifies                                                                                                                                                                                                                                                                                                                                                                                                     | enforcement point                                                                                      | canonical check           | disposition | rationale                                                                                                                                                 |
+| ------------------------------------- | ------------------------------------------------------------------------------------ | ---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ | ------------------------- | ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `pnpm preflight` (checkout preflight) | `scripts/preflight.mjs`                                                              | ts   | Six gate binaries (eslint, husky, prettier, tsc, turbo, vitest) exist and are executable in `node_modules/.bin` (exit 42 if not); no stale `.mosaic-test-work/web-build.lock` (exit 43); `apps/web/.next` is a real directory (not a symlink), every entry owned by the current uid, and its `.mosaic-source-hash` fingerprint + `.mosaic-symlink-manifest` hash match the certified build written by `scripts/build-web.mjs` | `pre-push`; inside `pnpm typecheck` (→ `CI ci.yml#typecheck`, verify-release `typecheck` stage)        | QC-1 Checkout integrity   | preserve    | Blocks a poisoned/stale generated `.next` from faking a green typecheck (the five-month-stale-`.next` class); trust chain is self-contained per-checkout. |
+| `pnpm typecheck`                      | root `package.json` → `turbo run typecheck`                                          | ts   | Per-package `tsc --noEmit` (all 20 packages); turbo `typecheck` depends on `^build`, so package builds must succeed first; prefixed by checkout preflight                                                                                                                                                                                                                                                                     | `CI ci.yml#typecheck`; `pre-push`; verify-release `typecheck` stage; `turbo typecheck`                 | QC-2 Workspace typecheck  | preserve    | The single workspace-wide type gate; CI and hooks invoke the same task, no divergent checklist.                                                           |
+| `pnpm lint`                           | root `package.json` → `turbo run lint`                                               | ts   | Per-package `eslint src` under root `eslint.config.mjs` (ignores `dist`, `.next`, `framework/**`, etc.)                                                                                                                                                                                                                                                                                                                       | `CI ci.yml#lint`; `pre-push`; verify-release `lint` stage; `turbo lint`                                | QC-3 Workspace lint       | preserve    | Same-task invocation from every surface; no second lint definition.                                                                                       |
+| `pnpm format:check`                   | root `package.json` → `prettier --check`                                             | ts   | Prettier parse/format equality over `**/*.{ts,tsx,js,jsx,json,md}` minus `.prettierignore` (generated trees, `docs/scratchpads/`, venvs, …)                                                                                                                                                                                                                                                                                   | `CI ci.yml#format`; `pre-push`; verify-release `format` stage                                          | QC-4 Format check         | preserve    | Single formatter, single ignore list, enforced identically everywhere.                                                                                    |
+| `pnpm test`                           | root `package.json` `test` = `test:checkout` && `turbo run test` && `test:installer` | ts   | (a) `node --test scripts/*.test.mjs` — checkout-tool units; (b) per-package `vitest run` (mosaic appends the 47-command `test:framework-shell` chain); (c) `tools/install-next-lane.test.sh`; turbo `test` declares DB env vars and depends on `^build`                                                                                                                                                                       | `CI ci.yml#test` (with `DATABASE_URL` + `db:migrate` first); verify-release `test` stage; `turbo test` | QC-5 Test suite execution | preserve    | One composed test command; the chain property (any link red ⇒ step red) is the gate.                                                                      |
+| `pnpm build`                          | root `package.json` → `turbo run build`                                              | ts   | Per-package build (`tsc`/Next) with `^build` dependency and `dist/**` outputs                                                                                                                                                                                                                                                                                                                                                 | `publish.yml#build`; verify-release `build` stage; `turbo build`                                       | QC-6 Workspace build      | preserve    | Publish artifacts derive from the same build task CI verifies.                                                                                            |
+
+### 1.2 Framework quality shell probes (`packages/mosaic/framework/tools/quality/`)
+
+| check                                       | location                                                                | kind  | what it actually verifies                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | enforcement point                                                                                                                                                                                                                                                                                                                                                           | canonical check                                                                                                                         | disposition                      | rationale                                                                                                                                                                                                                                                         |
+| ------------------------------------------- | ----------------------------------------------------------------------- | ----- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- |
+| Sanitization gate                           | `scripts/verify-sanitized.sh`                                           | shell | Built-in self-test first (planted identity/structural/YAML+service fixtures; exit 2 if the regexes or extension coverage break), then: (1) identity denylist grep (`jarvis\|jason\|woltje\|brain.woltje.com\|/home/jwoltje\|\bPDA\b`) over all shipped text files **including** `examples/`; (2) structural grep for private `$HOME/src` defaults in shipped scripts **excluding** `examples/`. Any hit ⇒ exit 1                                                                                 | `CI ci.yml#sanitization`; verify-release `sanitization` stage                                                                                                                                                                                                                                                                                                               | QC-7 Framework sanitization                                                                                                             | preserve                         | Labeled one-time regression guard with a self-test that prevents silent no-op; correctly scoped (identity vs structural) and documented as not a general PII detector.                                                                                            |
+| Resident-context budget                     | `scripts/check-resident-budget.sh` (+ `--self-test`)                    | shell | Self-test of the comparator, then `wc -l` vs per-file ceilings (CONSTITUTION 120, AGENTS 120, each RUNTIME.md 90); missing file ⇒ fail; over ceiling ⇒ exit 1                                                                                                                                                                                                                                                                                                                                    | `CI ci.yml#sanitization` (both modes); verify-release `sanitization` stage                                                                                                                                                                                                                                                                                                  | QC-8 Resident-context budget                                                                                                            | preserve                         | Caps the container (lines), never the wording — the deliberate anti-drift design (DESIGN §7); CI-enforceable half only, by design.                                                                                                                                |
+| Test-membership enumeration guard (#1017)   | `scripts/check-test-enumeration.sh` + `test-enumeration-exclusions.txt` | shell | Parses surface S1 (`packages/mosaic` `test:framework-shell` via JSON+shlex) and S2 (every `framework/tools/\*.sh                                                                                                                                                                                                                                                                                                                                                                                 | .py`token in`ci.yml`, comment lines stripped); population = `_test_.sh`under`framework/tools`; FAILS on: suite-shaped file on disk neither enumerated nor signed-excluded; surface naming a path missing on disk (both directions); exclusion without reason / stale / outside population / contradicting enumeration. Proves **naming, not reachability** (stated in-file) | `CI ci.yml#sanitization` (direct line); link [0] of `test:framework-shell` (thus `CI ci.yml#test`); verify-release `sanitization` stage | QC-9 Test-membership enumeration | preserve                                                                                                                                                                                                                                                          | Makes silent under-run impossible; invoked from both surfaces it audits so severing the chain cannot silence it. |
+| Enumeration-guard needles                   | `scripts/test-check-test-enumeration.sh`                                | shell | Needle/control fixtures driven through `--root`: every promised failure mode must trip the guard **on its own words**, plus controls that must pass (null-case defense); covers commented-out ci.yml lines (F1) and line-range parsing (n2b)                                                                                                                                                                                                                                                     | `test:framework-shell` → `CI ci.yml#test`; verify-release `test` stage                                                                                                                                                                                                                                                                                                      | QC-9 Test-membership enumeration                                                                                                        | preserve                         | Guard-of-the-guard with both polarities; same canonical check by design.                                                                                                                                                                                          |
+| Upgrade manifest guard (#791 HARD GATE)     | `scripts/test-upgrade-manifest-guard.sh`                                | shell | Keep-mode `install.sh` upgrade against seeded throwaway `MOSAIC_HOME`: every operator sentinel — including an **unanticipated** one — survives byte-identical with unchanged mtime; framework files still update; retired framework files pruned; matrix run with rsync present AND absent (keep path must be rsync-independent); fail-closed matrix (empty/operator-only/malformed/missing manifest aborts loudly, operator files untouched); operator secret never appears in installer output | `CI ci.yml#upgrade-guard`; verify-release `upgrade-guard` stage                                                                                                                                                                                                                                                                                                             | QC-10 Upgrade/install safety                                                                                                            | preserve                         | The operator-data hard gate for the `mosaic update` path; negative controls are load-bearing and documented.                                                                                                                                                      |
+| Upgrade rollback gate (#791 B1)             | `scripts/test-upgrade-rollback.sh`                                      | shell | Mid-sync failure (PATH-shadowing `cp` shim) must trigger snapshot restore: restore message fires, corrupted file restored, target byte-identical to pre-upgrade; control installer with `set -E` stripped must NOT roll back (proves errtrace is load-bearing); plus signal/exit-guard controls                                                                                                                                                                                                  | `CI ci.yml#upgrade-guard`; verify-release `upgrade-guard` stage                                                                                                                                                                                                                                                                                                             | QC-10 Upgrade/install safety                                                                                                            | preserve                         | Proves the rollback trap actually fires; the `-E`-stripped control keeps Part A honest.                                                                                                                                                                           |
+| Durable-snapshot gate (#791 PR2)            | `scripts/test-upgrade-durable-snapshot.sh`                              | shell | Pre-update snapshot taken before any mutation (0700/0600 perms, secret never logged, retention-pruned); post-sync verify net restores operator files a manifest bug lets the sync touch; CWE-59 symlink-leaf guard proven with a portable cp shim in both polarities (write-through-link must not happen); v1→v2 migration semantics (intended `bin/` removal not healed)                                                                                                                        | `CI ci.yml#upgrade-guard`; verify-release `upgrade-guard` stage                                                                                                                                                                                                                                                                                                             | QC-10 Upgrade/install safety                                                                                                            | preserve                         | Covers tampering and leak vectors the manifest guard cannot see; the shim rationale (busybox vs GNU cp) is documented in-file.                                                                                                                                    |
+| Install migration matrix (v2→v3)            | `scripts/test-install-migration.sh`                                     | shell | Fixture matrix running the real installer with `MOSAIC_SYNC_ONLY=1`: fresh install seeds + stamps version 3; legacy user-edited AGENTS overwritten with `.pre-constitution.bak` preserved (and idempotent); tuned STANDARDS overwritten; operator files (SOUL, credentials) preserved. Mirrors the TS suite `packages/mosaic/src/config/file-adapter.test.ts` — both installers must behave identically                                                                                          | `CI ci.yml#upgrade-guard`; verify-release `upgrade-guard` stage                                                                                                                                                                                                                                                                                                             | QC-10 Upgrade/install safety                                                                                                            | preserve                         | Pins the shell/TS installer parity contract; removal would orphan that parity requirement.                                                                                                                                                                        |
+| Enforcement verification probe (bash)       | `scripts/verify.sh`                                                     | shell | Attempts **real commits** in the target repo: planted type error must produce a commit blocked with `error`; planted `any` must trip `no-explicit-any`; planted lint error must trip `prettier`; gitleaks binary must exist (3a) and detect a planted AWS key via `gitleaks git --pre-commit --staged --redact` (3b). Verdicts are output-grep matches on hook stderr                                                                                                                            | `local` via installed `mosaic-quality-verify` on scaffolded target projects; **not run in this repo's CI**                                                                                                                                                                                                                                                                  | QC-20 Downstream enforcement verification                                                                                               | strengthen (review)              | Mechanism is genuinely behavioral (stronger than file presence) but verdict logic is grep-on-output and it is unwired here; absorb as the evaluator's enforcement-probe check (the RI-N4 evaluator invokes it or reimplements it) before retiring the shell path. |
+| Enforcement verification probe (PowerShell) | `scripts/verify.ps1`                                                    | shell | Windows port of `verify.sh`: same planted-commit tests with `$output -match` matching; no gitleaks self-test parity beyond the same checks                                                                                                                                                                                                                                                                                                                                                       | `local` (Windows operator); no Windows CI runner exists                                                                                                                                                                                                                                                                                                                     | QC-20 Downstream enforcement verification                                                                                               | strengthen (review)              | A hand-maintained twin of `verify.sh` with no CI coverage — exactly the drift shape the single evaluator removes; retire after the TS evaluator owns the probe.                                                                                                   |
+| Quality template installer (bash)           | `scripts/install.sh`                                                    | shell | Copies template files (`.husky/pre-commit` incl. mandatory gitleaks, `.lintstagedrc.js`, `.eslintrc.js`, `tsconfig.json`, `.woodpecker.yml`, `.gitleaks.toml`) into a target project; **warns** (does not verify) about `package.json` snippet merge; no post-condition check                                                                                                                                                                                                                    | `local` / via `mosaic-quality-apply`                                                                                                                                                                                                                                                                                                                                        | QC-21 Downstream rails scaffolding                                                                                                      | strengthen (review)              | Duplicates the TS `quality-rails init` scaffolder for a different template set; converging on one scaffolder (with post-scaffold verification) is prerequisite to retiring this path.                                                                             |
+| Quality template installer (PowerShell)     | `scripts/install.ps1`                                                   | shell | Windows twin of the template copy above                                                                                                                                                                                                                                                                                                                                                                                                                                                          | `local` (Windows operator)                                                                                                                                                                                                                                                                                                                                                  | QC-21 Downstream rails scaffolding                                                                                                      | strengthen (review)              | Same twin-drift risk as `verify.ps1`; no runner exercises it.                                                                                                                                                                                                     |
+| `mosaic-quality-verify` adapter             | `framework/tools/_scripts/mosaic-quality-verify`                        | shell | Thin adapter: validates target dir exists, asserts `verify.sh` present+executable, `cd` target, exec it. No verdict logic of its own                                                                                                                                                                                                                                                                                                                                                             | `local` (installed framework bin)                                                                                                                                                                                                                                                                                                                                           | QC-20 Downstream enforcement verification                                                                                               | preserve                         | Already the thin-adapter shape RI-N4 prescribes for shell surfaces.                                                                                                                                                                                               |
+| `mosaic-quality-apply` adapter              | `framework/tools/_scripts/mosaic-quality-apply`                         | shell | Thin adapter: arg validation then exec of quality `install.sh --template … --target …`                                                                                                                                                                                                                                                                                                                                                                                                           | `local` (installed framework bin)                                                                                                                                                                                                                                                                                                                                           | QC-21 Downstream rails scaffolding                                                                                                      | preserve                         | Thin adapter, no separate verdict; disposition follows its target script's convergence.                                                                                                                                                                           |
+| Roster schema regression                    | `scripts/test-roster-schema.py`                                         | shell | jsonschema `Draft202012Validator` over `fleet/roster.schema.json` with valid/invalid connector-kind fixtures (tmux/discord/matrix conditional fields)                                                                                                                                                                                                                                                                                                                                            | **unwired** — not on S1 or S2, not signed-excluded; also outside the enumeration guard's `*.sh` population, so the guard cannot see it                                                                                                                                                                                                                                      | QC-5 Test suite execution                                                                                                               | strengthen (review)              | A real regression suite that currently runs nowhere; wire it into a CI surface or sign an exclusion — leaving it invisible re-arms the exact gap #1017 closed.                                                                                                    |
+| Framework shell chain (S1)                  | `packages/mosaic/package.json` `test:framework-shell`                   | shell | 47-command `&&` chain: enumeration guard + needles, 14 lease-broker/mutator-gate python unitests, `check-runtime-launches.py`, and ~30 framework-tool shell suites (git wrappers, wake, woodpecker, tmux, glpi, orchestrator, `_scripts`). Quality-relevant members rowed separately below                                                                                                                                                                                                       | `turbo test` → `CI ci.yml#test`; verify-release `test` stage                                                                                                                                                                                                                                                                                                                | QC-5 Test suite execution                                                                                                               | preserve                         | The chain is the execution surface the enumeration guard audits; known residuals: a failing link stops later suites (measured in #1270 — suites after position 44 had not run), and the guard proves naming, not reachability.                                    |
+
+### 1.3 Framework runtime hooks and their harnesses (agent-host enforcement)
+
+| check                                 | location                                                                                  | kind  | what it actually verifies                                                                                                                                                                                                                                                                                                                                                            | enforcement point                                                                | canonical check                         | disposition         | rationale                                                                                                                                                                                                  |
+| ------------------------------------- | ----------------------------------------------------------------------------------------- | ----- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------- | --------------------------------------- | ------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| QA edit hook seam                     | `framework/tools/qa/qa-hook-stdin.sh` (+ `qa-hook-handler.sh`)                            | shell | PostToolUse stdin hook: extracts edited file from the tool JSON (jq or grep fallback), skips non-JS/TS, then the deps-preflight gate — exits 1 with the legible sentinel `deps not installed — run pnpm install` when `node_modules/.bin` is missing/empty (the #856 false-red class); the downstream handler only files QA remediation **report templates** (no verification logic) | `agent-runtime` (framework `runtime/claude/settings.json` PostToolUse); never CI | QC-16 Agent-runtime edit-time checks    | strengthen (review) | The sentinel gate is real enforcement; the handler's report-filing adds no verdict and its name promises more than the code does — evaluator absorption should keep the sentinel, drop the report theater. |
+| Typecheck-on-edit hook                | `framework/tools/qa/typecheck-hook.sh`                                                    | shell | PostToolUse: for edited `.ts/.tsx`, finds nearest `tsconfig.json` and runs `tsc --noEmit`, surfacing errors nonzero to the agent immediately                                                                                                                                                                                                                                         | `agent-runtime` (framework `runtime/claude/settings.json` PostToolUse)           | QC-16 Agent-runtime edit-time checks    | strengthen (review) | Edit-time duplicate of QC-2 with independent invocation logic; keep behavior, converge invocation through the evaluator adapter.                                                                           |
+| Deps-preflight harness                | `framework/tools/qa/test-deps-preflight.sh`                                               | shell | Five assertions against the seam incl. a documented RED control (raw `not found`), sentinel behavior for missing and empty `.bin`, and no-false-positive once populated                                                                                                                                                                                                              | `test:framework-shell` → `CI ci.yml#test`                                        | QC-16 Agent-runtime edit-time checks    | preserve            | Guard-of-the-check with a red control; keeps the sentinel from regressing.                                                                                                                                 |
+| Prompt-helper RCE regression          | `framework/tools/_scripts/test-mosaic-init-rce.sh`                                        | shell | Sources the prompt helpers and proves a literal `$(touch /tmp/pwned)` answer round-trips verbatim and never executes (no `/tmp/pwned` created)                                                                                                                                                                                                                                       | `test:framework-shell` → `CI ci.yml#test`                                        | QC-5 Test suite execution               | preserve            | Cheap, load-bearing security regression on the installer's input path.                                                                                                                                     |
+| Install-ordering harness (#869 C2)    | `framework/tools/_scripts/test-install-ordering-guard.sh`                                 | shell | Drives `mosaic-link-runtime-assets` with a fake `mosaic` on PATH: probe ok ⇒ settings copied + exit 0; probe fail ⇒ exit 1 with degraded outcome but all other runtime files still copied; `--allow-inactive-enforcement` forwarded; no-mosaic-on-PATH ⇒ python3 fallback strips enforcement hooks and exits 1; fallback + flag ⇒ wires as-is, exit 0                                | `test:framework-shell` → `CI ci.yml#test`                                        | QC-17 Lease-enforcement wiring safety   | preserve            | Exercises the shell wiring seam independently of the TS guard's own spec suite (complementary coverage, by design).                                                                                        |
+| Fleet-transport harness (#1240)       | `framework/tools/_scripts/test-fleet-transport-check.sh`                                  | shell | Extracts the shipped `check_fleet_transport`/`fleet_declared_transport` functions **from the shipped scripts** (fails loud if extraction yields nothing) and drives both implementations (mosaic-doctor + `tools/install.sh`) from one case table                                                                                                                                    | `test:framework-shell` → `CI ci.yml#test`                                        | QC-18 Operator-host drift audit         | preserve            | The anti-drift harness for the one rule shipped twice; extraction-from-source keeps it from testing a stale copy.                                                                                          |
+| Terminal-green contract (RM-61/#1000) | `framework/tools/woodpecker/test-terminal-green-contract.sh` + `verify-terminal-green.py` | shell | Red-first fixtures: pipeline JSON variants (service failure, step failure, cancelled, etc.) must produce the correct terminal-green verdict; controls must pass                                                                                                                                                                                                                      | `test:framework-shell` → `CI ci.yml#test`                                        | QC-5 Test suite execution               | preserve            | Keeps the CI-wait wrapper's green-detection honest; a false green here would poison every merge gate that trusts `pr-ci-wait.sh`.                                                                          |
+| Lease-gate launch invariant           | `framework/tools/lease-broker/check-runtime-launches.py`                                  | shell | Scans production roots (`packages/`, `apps/`, `plugins/`, `tools/`) across sh/py/ts/yaml suffixes for Claude/Pi process launches **outside** the lease gate; allowlist-based; fails CI on violation                                                                                                                                                                                  | `test:framework-shell` → `CI ci.yml#test`                                        | QC-15 Lease-gate architecture invariant | preserve            | The only architectural "no ungated launches" rail; grep+allowlist is the right cost/benefit for this invariant.                                                                                            |
+
+### 1.4 TypeScript quality logic (`@mosaicstack/quality-rails` + mosaic CLI)
+
+| check                                    | location                                                                                       | kind     | what it actually verifies                                                                                                                                                                                                                                                                                                                                                                                                            | enforcement point                                                                                              | canonical check                       | disposition         | rationale                                                                                                                                                                                                                                                                           |
+| ---------------------------------------- | ---------------------------------------------------------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------- | ------------------------------------- | ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `quality-rails check`                    | `packages/quality-rails/src/cli.ts` (`mosaic quality-rails check --project`)                   | ts       | **Expected-file presence only**: loops `expectedFilesForKind` (node: `.eslintrc`, `biome.json`, `.githooks/pre-commit`, `PR-CHECKLIST.md`; python: `pyproject.toml`+hooks+checklist; rust: `rustfmt.toml`+…) and exits 1 listing missing paths. Does not execute any linter, formatter, hook, or scanner                                                                                                                             | `local` (operator CLI); **no CI wiring in this repo**                                                          | QC-19 Downstream rails presence check | strengthen          | This is the RI-N4 evaluator seed. Today presence ≠ parity (explicitly called out by RI-N4): it must grow typed verdicts (`passed/failed/blocked/error/not-applicable`), check versioning/subject/reason, digested definitions, and absorb the effective shell probes (QC-20 first). |
+| `quality-rails doctor`                   | `packages/quality-rails/src/cli.ts`                                                            | ts       | Same presence data as `check`, printed with ok/missing lines; **cannot fail** (no nonzero exit on missing files)                                                                                                                                                                                                                                                                                                                     | `local` (operator CLI)                                                                                         | QC-19 Downstream rails presence check | strengthen          | A doctor that cannot fail is advisory; fold into `check` (or return typed states) when the evaluator lands.                                                                                                                                                                         |
+| `quality-rails init`                     | `packages/quality-rails/src/cli.ts` + `scaffolder.ts`/`templates.ts`                           | ts       | Scaffolds rails files per detected kind/profile (linters/formatters lists are advisory strings; hooks flag always true); writes files, prints follow-ups — no post-condition verification                                                                                                                                                                                                                                            | `local` (operator CLI)                                                                                         | QC-21 Downstream rails scaffolding    | strengthen (review) | Second scaffolding path alongside quality `install.sh` (§1.2); converge on one with post-scaffold verification before retiring either.                                                                                                                                              |
+| Lease activation probe (#869 C1, hidden) | `packages/mosaic/src/commands/lease-activation-probe.ts`                                       | ts       | Real capability probe, not file presence: resolves the installed mosaic CLI and requires it to advertise the exact `{name, version}` activation contract; all deps injectable; registered as hidden CLI command and consumed by C2/C5                                                                                                                                                                                                | `local` (hidden CLI + consumed by C2/C5); spec-tested via `lease-activation-probe.spec.ts` in `turbo test`     | QC-17 Lease-enforcement wiring safety | preserve            | The versioned-contract probe is precisely the fail-closed capability check RI-N2 generalizes; already typed and injectable.                                                                                                                                                         |
+| Install-ordering guard (#869 C2, hidden) | `packages/mosaic/src/commands/install-ordering-guard.ts`                                       | ts       | Decides whether enforcement hook entries are written into the `~/.claude/settings.json` the framework reseed ships: not activatable ⇒ strip hooks + nonzero loud outcome (default); explicit per-invocation `--allow-inactive-enforcement` opt-out wires-with-warning. Never touches the runtime gate's own fail-closed behavior                                                                                                     | `installer` (framework reseed via `mosaic-link-runtime-assets`); spec + shell harness coverage in `turbo test` | QC-17 Lease-enforcement wiring safety | preserve            | Correct default-deny with an explicit, non-env opt-out; test-locked from both the TS and shell sides.                                                                                                                                                                               |
+| Lease doctor check (#869 C5)             | `packages/mosaic/src/commands/lease-doctor-check.ts`                                           | ts       | Combines hook-wiring detection in `~/.claude/settings.json` with C1 activatable and C3 broker-supervisor health: wired ∧ (¬activatable ∨ ¬healthy) ⇒ loud `[ERROR]` that forces `mosaic doctor` exit 1 regardless of the bash audit's own exit                                                                                                                                                                                       | `local` (inside `mosaic doctor`); spec coverage in `turbo test`                                                | QC-17 Lease-enforcement wiring safety | preserve            | Closes the "bricked host looks green" hole; cannot be masked by the bash script — that composition is the point.                                                                                                                                                                    |
+| `mosaic doctor` (framework drift audit)  | `packages/mosaic/src/commands/launch.ts` (`doctor`) + `framework/tools/_scripts/mosaic-doctor` | shell+ts | Bash audit of the installed framework home: ~40 expected files/dirs present; runtime files are copies (not symlinks) matching source (`cmp`) or composed runtime-contract markers; hard-gates block present in AGENTS.md; sequential-thinking MCP configured; fleet transport binary present per roster (warn); legacy symlink trees gone; skills synced — **warn-based, exit 1 only with `--fail-on-warn`**, plus C5's forced error | `local` (operator audit)                                                                                       | QC-18 Operator-host drift audit       | preserve            | Host-state audit CI cannot see (user files by design, DESIGN §7); advisory exit is the documented contract — do not silently change it.                                                                                                                                             |
+| `mosaic gateway doctor`                  | `packages/mosaic/src/commands/gateway-doctor.ts`                                               | ts       | Probes per-service health (PostgreSQL, Valkey, pgvector) via `@mosaicstack/storage`, reports tier and JSON; exit 1 only when at least one **required** service fails (yellow stays 0)                                                                                                                                                                                                                                                | `local` (operator)                                                                                             | QC-18 Operator-host drift audit       | preserve            | Service health with correct red/yellow exit semantics; JSON mode exists for scripting.                                                                                                                                                                                              |
+| `mosaic gateway verify`                  | `packages/mosaic/src/commands/gateway/verify.ts`                                               | ts       | Post-install liveness: daemon meta via HTTP with retries, admin token on file, bootstrap endpoint reachable; aggregated pass/fail                                                                                                                                                                                                                                                                                                    | `local`; consumed by `tools/e2e-install-test.sh`                                                               | QC-18 Operator-host drift audit       | preserve            | The first-run proof the installer E2E relies on; retry-aware so startup races don't false-red.                                                                                                                                                                                      |
+| `mosaic fleet doctor`                    | `packages/mosaic/src/commands/fleet-reconciler-command.ts`                                     | ts       | Classifies local roster-owned drift (no mutation) from the parsed v2 roster                                                                                                                                                                                                                                                                                                                                                          | `local` (operator)                                                                                             | QC-18 Operator-host drift audit       | preserve            | Dry-run classification is the correct non-mutating audit shape.                                                                                                                                                                                                                     |
+
+### 1.5 Git hooks (developer machine)
+
+| check                     | location                                                  | kind  | what it actually verifies                                                                                                                                                                                                                                | enforcement point                                                                                       | canonical check             | disposition | rationale                                                                                                         |
+| ------------------------- | --------------------------------------------------------- | ----- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- | --------------------------- | ----------- | ----------------------------------------------------------------------------------------------------------------- |
+| Pre-commit staged hygiene | `.husky/pre-commit` → `npx lint-staged` (`.lintstagedrc`) | shell | On staged files only: `prettier --write` + `eslint --fix` for ts/tsx/js/jsx; `prettier --write` for json/md/yaml/yml. **Mutating** (fixes and re-stages); commit blocks only if a fixer itself fails                                                     | `pre-commit` (every local commit; hooks activated by `install-hooks.mjs` via `core.hooksPath .husky/_`) | QC-13 Staged-change hygiene | preserve    | Correct scoped fast gate; note it auto-fixes rather than rejects (deliberate). Gap: no secret scan here — see §3. |
+| Pre-push gate             | `.husky/pre-push`                                         | shell | `pnpm preflight && pnpm typecheck && pnpm lint && pnpm format:check` (no test run — documented in AGENTS.md)                                                                                                                                             | `pre-push`                                                                                              | QC-14 Pre-push gate         | preserve    | Composes QC-1..4 exactly as specified in AGENTS.md; tests intentionally left to CI.                               |
+| Hook installer            | `scripts/install-hooks.mjs` (`pnpm prepare`)              | ts    | Stages husky hooks into a scratch repo first, asserts husky produced its `h` shim, quarantines incomplete previous sets, verifies idempotence via full directory snapshot comparison, then sets `core.hooksPath`; skips cleanly with `HUSKY=0` or no git | `installer` (runs on `pnpm install`)                                                                    | QC-13 Staged-change hygiene | preserve    | Self-verifying wiring for the hook gates — a corrupted half-install cannot silently disable them.                 |
+
+### 1.6 CI pipeline steps (`.woodpecker/`)
+
+Step-to-probe mapping for container steps: `ci.yml#sanitization` = QC-7+QC-8+QC-9 (rows §1.2, plus `apk add bash` env prep); `ci.yml#upgrade-guard` = QC-10 (rows §1.2, plus `apk add rsync`); `ci.yml#typecheck`/`#lint`/`#format`/`#test` = QC-2/3/4/5 (rows §1.1). Rows below are mechanisms that exist only in a pipeline.
+
+| check                                  | location                                                                               | kind          | what it actually verifies                                                                                                                                                                                                                                                                                                            | enforcement point                                    | canonical check                     | disposition                                                           | rationale                                                                                                     |
+| -------------------------------------- | -------------------------------------------------------------------------------------- | ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------- | ----------------------------------- | --------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------- |
+| Frozen install                         | `ci.yml#install`                                                                       | pipeline-step | `pnpm install --frozen-lockfile --prefer-offline` against the baked ci-base store — lockfile supply integrity; a drifted lockfile fails the build before any gate runs                                                                                                                                                               | `CI ci.yml#install`                                  | QC-1 Checkout integrity             | preserve                                                              | Lockfile-pinned dep resolution is the supply-chain floor under every later gate.                              |
+| Test-step readiness prelude            | `ci.yml#test` prologue                                                                 | pipeline-step | Installs pinned `@earendil-works/[email protected]` (Invariant R suite requires the real binary) + openssl; waits up to 60×1s on `pg_isready` for the `ci-postgres` service and fails fast if it never comes up; runs `db:migrate` before tests                                                                                 | `CI ci.yml#test`                                     | QC-5 Test suite execution           | preserve                                                              | Fail-fast environment preconditions — a missing service produces a legible failure, not a wall of red tests.  |
+| Publish verify step (pending RI-1-001) | `publish.yml#verify` (branch `feat/ri-050-publish-gate` @ `46784c8d`, not yet on next) | pipeline-step | (a) Commit identity: fails closed if `CI_COMMIT_SHA` empty, `git rev-parse HEAD` empty, or the two differ; (b) runs the canonical `pnpm verify:release`. **Every publish effect depends on this step; it carries no path filter**                                                                                                    | `publish.yml#verify`                                 | QC-11 Terminal release verification | preserve                                                              | The RI-N1 exact-commit binding; until it merges, publish steps on next depend on `build` only (see §3 gap 1). |
+| Publish error classification           | `publish.yml#publish-npm`                                                              | pipeline-step | Publishes `@mosaicstack/*` (minus web) and classifies outcome: success, or the **only tolerated failure** = already-published (EPUBLISHCONFLICT / "cannot publish over" / "previously published"); explicit fatal on npm `E404/E401/ENEEDAUTH/ECONNREFUSED/ETIMEDOUT/ENOTFOUND` and on any unrecognized failure (replacing the old ` |                                                      | echo` that hid a registry 404)      | `publish.yml#publish-npm` (main/tags, path-filtered on `packages/**`) | QC-12 Publish-effect integrity                                                                                | preserve | Converts silent publish fall-on-floor into loud failure; allowlist-of-one error tolerance is the right shape. |
+| Next-lane publish assertions           | `publish.yml#publish-next-npm`                                                         | pipeline-step | Guards: branch must be `next`, `CI_PIPELINE_NUMBER` required; registry dist-tags JSON must be usable; walks all manifests, strictly parses stable semver, rewrites `X.Y.(Z+1)-next.<N>`; publishes with `--tag next` (never latest); post-publish asserts `npm view @mosaicstack/mosaic@next` resolves to the exact expected version | `publish.yml#publish-next-npm` (push/manual on next) | QC-12 Publish-effect integrity      | preserve                                                              | Durable prerelease lane with end-to-end resolution proof — the published artifact is verified, not assumed.   |
+| Image destination policy               | `publish.yml#build-gateway` / `#build-appservice` / `#build-web`                       | pipeline-step | Kaniko builds with destination policy: `next` ⇒ sha-tag only (fatal if a tag event sneaks in); `main` ⇒ sha + `latest`; tag events ⇒ sha + `<tag>`; anything else fatal. Path filters only skip **effects**, never the verify step                                                                                                   | `publish.yml#build-*`                                | QC-12 Publish-effect integrity      | preserve                                                              | Fail-closed tagging matrix; the exclude-list default-safe design keeps stale images impossible.               |
+
+Adjacent pipeline surface (not a probe): `.woodpecker/ci-image.yml` rebuilds the ci-base image on `pnpm-lock.yaml`/`Dockerfile.ci` change with an immutable `lock-<hash>` tag; pipelines consume `:latest`. Recorded for completeness — no code-quality property is checked.
+
+### 1.7 Root installer tooling (`tools/`)
+
+| check                       | location                                                  | kind  | what it actually verifies                                                                                                                                                                                                                                                              | enforcement point                                       | canonical check                 | disposition         | rationale                                                                                                                                                       |
+| --------------------------- | --------------------------------------------------------- | ----- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------- | ------------------------------- | ------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Next-lane installer test    | `tools/install-next-lane.test.sh` (`pnpm test:installer`) | shell | Drives `tools/install.sh --next` with faked `node`/`npm` binaries (no network): Node 20 must be rejected; installs must pin **exact** versions (mutable `@next` forbidden); fast path must not unexpectedly fall back to source; gateway-install failure takes the documented fallback | `turbo`-external tail of `pnpm test` → `CI ci.yml#test` | QC-5 Test suite execution       | preserve            | Hermetic (shimmed) regression net for the installer lane; runs as part of the standard test command.                                                            |
+| Clean-container install E2E | `tools/e2e-install-test.sh`                               | shell | Full first-run flow in a node:22-alpine container: `install.sh --yes` → `mosaic wizard` (non-interactive) → `mosaic gateway install` → `mosaic gateway verify` exit check (with EXPECTED-SKIP if the installed CLI predates `gateway verify`); skips gracefully without Docker         | `local` (manual; requires Docker); **not wired in CI**  | QC-5 Test suite execution       | strengthen (review) | The only end-to-end proof of the install→verify path; currently operator-initiated only — wire into a periodic/manual CI lane or sign its exclusion explicitly. |
+| Host installer advisories   | `tools/install.sh` (`--check`; `check_fleet_transport`)   | shell | `--check` = version comparison only, no install; `check_fleet_transport` warns (non-blocking, by design — tmux is the fleet's dependency, not mosaic's) when the roster-declared transport binary is absent, naming exactly what it blocks; PATH-persistence warnings                  | `installer` (operator-run)                              | QC-18 Operator-host drift audit | preserve            | Advisory-by-design warnings; the parallel doctor check is drift-tested by §1.3's harness.                                                                       |
+
+### 1.8 Pending workstream additions (branch `feat/ri-050-publish-gate` @ `46784c8d`)
+
+| check                           | location                                             | kind | what it actually verifies                                                                                                                                                                                                                                                                          | enforcement point                                               | canonical check                     | disposition | rationale                                                                                      |
+| ------------------------------- | ---------------------------------------------------- | ---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------- | ----------------------------------- | ----------- | ---------------------------------------------------------------------------------------------- |
+| Canonical terminal verification | `scripts/verify-release.mjs` (`pnpm verify:release`) | ts   | One command replaying the full mandatory set as stages — sanitization, upgrade-guard, typecheck (incl. preflight), lint, format, test, build — mirroring `ci.yml` step-for-step; fail-fast on first failing command; requires `bash`+`rsync` on PATH; `--stage <name>` for wiring smoke-tests only | `publish.yml#verify` (pending); `local` (`pnpm verify:release`) | QC-11 Terminal release verification | preserve    | The RI-N1 canonical command — CI and publication share one semantic checklist by construction. |
+| Verify-parity contract test     | `scripts/verify-release.test.mjs`                    | ts   | Parses the real `ci.yml`/`publish.yml`: stage table must match ci.yml step-for-step; every publish-effect step (name `publish*` or image-pushing) must transitively depend on `verify`; commit-identity assertion must be present; `verify` must carry no path filter                              | `test:checkout` → `CI ci.yml#test` (once merged)                | QC-11 Terminal release verification | preserve    | Guard-of-the-guard at checkout time — the two surfaces cannot drift apart silently.            |
+
+## 2. Canonical check set
+
+The deduplicated checks every row above maps onto. IDs are stable for RI-3-002 to consume.
+
+- **QC-1 Checkout integrity.** Owns: the checkout can run its gates — frozen-lockfile dependency resolution, required gate binaries present, no stale build lock, and the `apps/web/.next` generated-state trust chain (real directory, uid ownership, certified source fingerprint, certified symlink manifest). Implemented by `scripts/preflight.mjs` + frozen install steps.
+- **QC-2 Workspace typecheck.** Owns workspace-wide TypeScript soundness: per-package `tsc --noEmit` over built dependencies (`turbo typecheck`). The single definition invoked by CI, pre-push, and terminal verification.
+- **QC-3 Workspace lint.** Owns static-analysis policy: per-package ESLint under the root config. One config, one task, every surface.
+- **QC-4 Format check.** Owns formatting uniformity: Prettier check with the repo ignore list. (The pre-commit variant additionally fixes; the verdict form is this check.)
+- **QC-5 Test suite execution.** Owns execution of all test surfaces: checkout script units (`node --test`), per-package Vitest suites (including the framework shell chain and its python unitests), the installer-lane shim test, and — once wired — `test-roster-schema.py` and container E2E. Also owns guards-of-the-gate that live inside the chain (terminal-green contract, RCE regression).
+- **QC-6 Workspace build.** Owns artifact buildability: `turbo build` producing the artifacts publication consumes.
+- **QC-7 Framework sanitization.** Owns the open-source guarantee for the shipped framework package: no operator-identity tokens anywhere (examples included), no private `$HOME` defaults in shipped scripts, with a self-test that keeps the regexes honest.
+- **QC-8 Resident-context budget.** Owns the line-count ceilings on framework files injected into every agent's context (Constitution, dispatcher, RUNTIME.md slices) — the CI-enforceable half of the resident-prompt budget.
+- **QC-9 Test-membership enumeration.** Owns the property that no test suite can silently fall out of CI: disk population vs parsed enumeration surfaces, both-directions staleness, and signed exclusions with reasons. Includes its needle/control harness.
+- **QC-10 Upgrade/install safety.** Owns the #791 family: operator-path byte-identity across keep-mode upgrades (manifest guard), mid-failure rollback (errtrace-proven), durable pre-update snapshot + verify net + CWE-59 leaf guard, and the v2→v3 migration matrix with shell/TS parity.
+- **QC-11 Terminal release verification.** Owns the RI-N1 exact-commit binding: commit-identity assertion plus one canonical command (`pnpm verify:release`) replaying the complete mandatory set, with every publish effect depending on it; plus the checkout-time parity/DAG contract test that keeps pipeline and command in sync.
+- **QC-12 Publish-effect integrity.** Owns publication correctness: npm publish error classification (only already-published tolerated), next-lane versioning and post-publish resolution proof, and image destination/tag policy.
+- **QC-13 Staged-change hygiene.** Owns commit-time hygiene on staged files (prettier/eslint fix-and-restage) and the self-verifying hook wiring that guarantees the gates are actually installed.
+- **QC-14 Pre-push gate.** Owns the local push composition: preflight + typecheck + lint + format:check (tests deliberately deferred to CI).
+- **QC-15 Lease-gate architecture invariant.** Owns "no ungated runtime launches in production code": the scan + allowlist over `packages/`, `apps/`, `plugins/`, `tools/`.
+- **QC-16 Agent-runtime edit-time checks.** Owns edit-time feedback on agent hosts: the deps-preflight legibility sentinel and typecheck-on-edit, plus their regression harnesses.
+- **QC-17 Lease-enforcement wiring safety.** Owns the #869 C1/C2/C5 trio: activation capability probe (versioned contract), enforcement-hook wiring gate (default-deny with explicit opt-out), and the doctor check that surfaces a bricked host — with their shell/TS harnesses.
+- **QC-18 Operator-host drift audit.** Owns host-state health CI cannot see: `mosaic doctor` drift audit (+ fleet transport, both implementations), `fleet doctor` roster classification, `gateway doctor`/`gateway verify` service health, and installer advisories. Advisory exits are part of the contract.
+- **QC-19 Downstream rails presence check.** Owns "does a scaffolded project still carry its rails files" — today the TS `quality-rails check/doctor` presence loop; per RI-N4 this is the seed that must become the typed evaluator (presence alone is explicitly not parity).
+- **QC-20 Downstream enforcement verification.** Owns "do the rails actually block" on scaffolded projects: the behavioral planted-commit probe (type error, `any`, lint, gitleaks secret) currently in `verify.sh`/`verify.ps1` behind the `mosaic-quality-verify` adapter.
+- **QC-21 Downstream rails scaffolding.** Owns putting rails files into a target project: the shell template installer (+ PowerShell twin) and the TS `quality-rails init` scaffolder — currently two paths that must converge.
+
+## 3. Coverage gaps
+
+Enforced nowhere but implied, or named in docs/tooling but not wired:
+
+1. **Publication not yet bound to verification on `next`.** At this base (`8199261c`), `publish.yml` publish steps depend on `build` only; the `verify` step and `scripts/verify-release.mjs` exist on `feat/ri-050-publish-gate` (`46784c8d`) but are not merged. Until RI-1-001 lands, AC-RI-1's negative control cannot hold on the real pipeline.
+2. **Playwright E2E unwired.** `apps/web` ships `test:e2e` (`playwright test`) with real suites (`admin/auth/chat/navigation.spec.ts`); neither `pnpm test` nor any CI step invokes it. The web UI's user flows are verified only when an operator runs them manually.
+3. **No secret scanning on this repo.** The framework's own template pre-commit makes gitleaks **required**, and `verify.sh` proves detection with a planted key — but this repository's `.husky/pre-commit` (lint-staged only) and CI run no secret scan. The repo ships the control it does not use.
+4. **No dependency audit.** The quality `.woodpecker.yml` templates and `docs/CI-SETUP.md` specify `npm audit --audit-level=high` as a pipeline stage; nothing equivalent runs for this repo.
+5. **No coverage thresholds.** Templates enforce 80% Jest coverage thresholds; this repo's Vitest configs collect coverage with no thresholds — coverage is measured nowhere and enforced nowhere.
+6. **`test-roster-schema.py` invisible.** A real jsonschema regression suite wired to no surface and invisible to the enumeration guard (its population is `*.sh`; the suite is `.py`). Either enumerate it or sign an exclusion — silence here is the #1017 defect shape.
+7. **Presence-checker expectations ≠ this repo.** `quality-rails check` expects `.eslintrc`, `biome.json`, `.githooks/pre-commit`, `PR-CHECKLIST.md` for node projects — none describe this monorepo (husky, flat eslint config, no biome, no PR-CHECKLIST.md). The evaluator's check set must be per-subject (versioned, digested), not one global file list.
+8. **Chain-ordering residual (documented).** `test:framework-shell` is one `&&` chain: a failing link skips every later suite while the step still fails (measured in #1270 — four suites after position 44 had not run since a prior merge). The enumeration guard proves naming, not reachability; both residuals are in-file documented but structurally unfixed.
+9. **Signed-exclusion burndown open.** 16 signed exclusions remain in `test-enumeration-exclusions.txt`; several are "unmeasured in CI image" or blocked on missing CI tooling (tmux, setsid) — tracked under #1017/#1271. Each is an enforcement promise deferred, not delivered.
+10. **Windows twins unexercised.** `verify.ps1`, `install.ps1`, `mosaic-doctor.ps1` have no runner anywhere (no Windows CI); behavioral drift from their bash twins is undetectable by construction.
+11. **QA hook name vs behavior.** `qa-hook-handler.sh` files remediation report templates but performs no verification; the seam's actual gate value is only the deps-preflight sentinel. Anything relying on "QA automation hook" as a check is relying on report-filing.
+12. **Two test paths, one gated.** CI runs tests against ci-postgres (`DATABASE_URL` set); the local PGlite path is the documented default (AGENTS.md) until KBN-101-02/101-05. Only the CI path is enforced by pipeline.
+
+## 4. Disposition summary
+
+| disposition         | rows | checks                                                                                                                                                                                                                                                                                    |
+| ------------------- | ---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| preserve            | 43   | Every canonical owner (QC-1..QC-18) plus correct guards-of-the-guard and thin adapters: all of §1.1, the CI-invoked framework probes and adapters in §1.2, all of §1.3, the C1/C2/C5 trio and doctors in §1.4, all of §1.5, all pipeline-only steps in §1.6, §1.7 rows 1 and 3, and §1.8. |
+| strengthen          | 2    | `quality-rails check` and `quality-rails doctor` (QC-19) — the RI-N4 evaluator seed: typed verdicts, versioned/digested check definitions, per-subject check sets.                                                                                                                        |
+| strengthen (review) | 9    | `verify.sh` + `verify.ps1` (QC-20), quality `install.sh`/`install.ps1` + `quality-rails init` (QC-21 — scaffold-path convergence), `test-roster-schema.py` (QC-5 — wire or sign), `qa-hook-stdin.sh` seam + `typecheck-hook.sh` (QC-16), `tools/e2e-install-test.sh` (QC-5 — CI lane).    |
+| retire              | 0    | None meet the bar: RI-N4 requires effective shell probes be **absorbed before** their paths retire, and no absorption exists yet. The `strengthen (review)` rows are the retirement candidates for RI-3-002 once the evaluator owns their behavior.                                       |
+
+Row total: 54. Canonical checks: 21 (QC-1..QC-21).

docs/reports/README.md

@@ -12,13 +12,11 @@ Use the canonical guide, API contract, source, and tests to determine current be
 - [Issue #756 documentation checklist](documentation/756-discord-plugin-checklist.md) — historical completion checklist for the official Discord plugin workstream.
 - [Framework consistency audit — 2026-02-17](documentation/AUDIT-2026-02-17-framework-consistency.md) — historical framework consistency and remediation snapshot.
 - [Compaction-refresh #830 checklist](compaction-refresh/830-documentation-checklist.md) — historical incomplete-at-snapshot documentation checklist.
-- [Issue #1264 documentation checklist](documentation/1264-documentation-checklist.md) — current in-repo user/admin/developer/report coverage and review gate.
 
 ## Code-review evidence
 
 - [Issue #756 independent code review](code-review/756-code-review.md) — historical exact-scope review of the official Discord plugin workstream.
 - [Gateway security-hardening code review — 2026-03-13](code-review/gateway-security-20260313.md) — historical no-blocker review snapshot.
-- [Issue #1264 independent code and security review](code-review/1264-code-review.md) — initial finding, remediation, clean re-review, and remaining formal PR-review gate.
 
 ## Security evidence
 
@@ -28,7 +26,6 @@ Use the canonical guide, API contract, source, and tests to determine current be
 
 - [P8-003 performance optimization report](qa/p8-003-performance-optimization.md) — historical implementation evidence; not a current SLO or production benchmark.
 - [Gateway security-hardening QA report — 2026-03-13](qa/gateway-security-20260313.md) — historical test report with its original live-smoke-test limitation.
-- [Issue #1264 unattended fleet first-start verification](qa/2026-08-16-1264-unattended-first-start.md) — RED/GREEN no-TTY CLI evidence, baseline gates, and explicit real-provider limitation.
 
 ## Native Kanban/SOT evidence
 

docs/reports/code-review/1264-code-review.md

@@ -1,97 +0,0 @@
-# Issue #1264 Code and Security Review
-
-> Branch: `fix/1264-fleet-unattended-first-start` | Base:
-> `origin/next@476db12b92971634b67fd2057b7577ee5894e449`
-
-## Initial automated review
-
-Codex reviewed the pre-PR uncommitted delta with:
-
-```bash
-~/.config/mosaic/tools/codex/codex-code-review.sh --uncommitted \
-  -o /tmp/1264-codex-code-review.json
-```
-
-Result: `request-changes`, confidence `0.93`, 20 files, one should-fix. `checkSoul()` trimmed
-`MOSAIC_AGENT_NAME` for pre-seed resolution while composition used the original value, so a padded
-name could seed files before later refusal.
-
-Remediation rejected blank/leading/trailing-whitespace values before roster lookup or writes and
-added three built-CLI no-side-effect regressions. Automated re-review approved that delta with no
-findings (confidence `0.86`). Initial security review reported risk `none` (confidence `0.91`).
-
-## Formal exact-head review
-
-Daphne reviewed PR #1268 at exact head `43fa0477877e0d0f110da8d11c3033b40ddeb191` and filed Gitea
-review ID 168 as `REQUEST_CHANGES`. The review was source/PR-only; the canary remained untouched.
-
-Blocking groups:
-
-1. class mismatch was validated after first-start mutation;
-2. secure `USER.md` validation was discarded before ordinary path-following composition;
-3. `existsSync()` treated a dangling destination symlink as missing, allowing counterpart partial
-   publication; and
-4. the built-CLI/evidence chain allowed stale ignored `dist/`, cited an unshipped canary object, and
-   carried conflicting test totals/pane wording.
-
-The diagnostic's defaults-only repair advice was also inaccurate for roster/class/destination
-failures.
-
-## Formal-review remediation
-
-All four blocking groups received regressions before production changes. The RED run produced four
-failures while 1,568 existing tests passed. Remediation then:
-
-- validates canonical name and class before seeding;
-- preflights destination directory entries with `lstatSync()` so target and dangling symlinks fail
-  before publication;
-- securely reads `USER.md` through an `O_NOFOLLOW` descriptor at composition time;
-- adds a Mosaic build before package Vitest and a dependency build in the clean-checkout command;
-- replaces defaults-only advice with neutral named-component repair guidance; and
-- reconciles shipping canary provenance, pane chronology, commands, and totals.
-
-Remediation code review:
-
-```bash
-~/.config/mosaic/tools/codex/codex-code-review.sh --uncommitted \
-  -o /tmp/1264-remediation-code-review.json
-```
-
-Result: `approve`, confidence `0.88`, 6 files, no findings. Summary: the fail-closed destination
-checks, class-validation order, secure composition, and build-before-Vitest path are coherent.
-
-Remediation security review:
-
-```bash
-~/.config/mosaic/tools/codex/codex-security-review.sh --uncommitted \
-  -o /tmp/1264-remediation-security-review.json
-```
-
-Result: risk `none`, confidence `0.93`, 9 files, no critical/high/medium/low findings. The sandbox
-could not run Vitest because Vite attempted to create a temporary config artifact on its read-only
-mount (`EROFS`); executor-owned focused and full results are recorded in the QA report.
-
-## Second exact-head review
-
-Daphne reviewed exact head `9dc90be7e13b1cd609f6df97d43d890ef5392ca0` and filed Gitea review
-ID 169 as `REQUEST_CHANGES`. Review 169 confirmed all review-168 closures, then found:
-
-1. the new point-of-use reader was Linux-only but had been applied to every standalone USER read,
-   breaking supported non-fleet macOS composition; and
-2. explicit blank/whitespace `MOSAIC_AGENT_CLASS` was treated as absent and could seed before
-   runtime, while only undefined should mean absent.
-
-Red-first remediation preserves legacy `readOptional()` for standalone composition, keeps descriptor
-no-follow consumption fleet-only, moves the replacement-symlink case under a valid fleet identity,
-and rejects defined blank/whitespace classes before seeding. Three blank-class CLI cases and one
-tolerant standalone composition case failed before the source change and pass after it.
-
-Review-169 remediation code review approved at confidence `0.90` (4 files, no findings). Security
-review reported risk `none` at confidence `0.90` (4 files, no findings). The review sandbox retained
-its known Vite `EROFS` limitation; executor-owned tests are in the QA report.
-
-## Remaining review gate
-
-Daphne must re-review the next exact pushed head. This report cannot record that future verdict
-without changing the reviewed head, so the authoritative terminal verdict belongs to PR #1268's
-Gitea review record. Fred and goals are excluded as reviewers.

docs/reports/documentation/1264-documentation-checklist.md

@@ -1,32 +0,0 @@
-# #1264 Documentation Completion Checklist
-
-## Required artifacts
-
-- [x] `docs/PRD.md` updated with `FCM-REQ-12` and `AC-FCM-10`.
-- [x] User workflow documents unattended fleet first start and separate prerequisites.
-- [x] Administrator operations page documents source/destination ownership, failure handling, and an
-      exact-source build-before-Vitest verification gate.
-- [x] Developer architecture page documents control flow, identity authority, concurrency, and non-goals.
-- [x] `docs/SITEMAP.md` and book indexes updated.
-- [x] QA evidence is under `docs/reports/qa/`; working notes are under `docs/scratchpads/`.
-- [x] Framework defaults README reflects fleet-versus-standalone behavior.
-
-## API coverage
-
-- [x] No HTTP/API endpoint or DTO changed; OpenAPI and endpoint indexes are not applicable.
-
-## Structural standards
-
-- [x] User, administrator, developer, report, and sitemap indexes link the new pages.
-- [x] No noncanonical file was added at the `docs/` root.
-- [x] Canonical documentation remains in-repo; no external publication was requested or performed.
-
-## Review gate
-
-- [x] Initial padded-name finding remediated and automated re-review approved.
-- [x] Daphne formal review ID 168 completed on exact first head `43fa0477` and requested changes.
-- [x] Four review-168 groups reproduced red and remediated; automated reviews are clean.
-- [x] Daphne review ID 169 completed on exact head `9dc90be7` and confirmed review-168 closures.
-- [x] Review-169 standalone-portability and blank-class blockers reproduced red and remediated;
-      automated reviews are clean.
-- [ ] Daphne exact-second-remediation-head re-review completed after push (Fred/goals excluded).

docs/reports/qa/2026-08-16-1264-unattended-first-start.md

@@ -1,220 +0,0 @@
-# #1264 Unattended Fleet First-Start Verification
-
-> Status: **IN PROGRESS — review-169 remediation complete locally; push/re-review pending** |
-> Executor: goals | Date: 2026-08-16 | Target: isolated local fixtures only
-
-## Objective
-
-Verify that a named fleet seat launched through a systemd-equivalent, no-TTY environment on a clean
-host reaches its runtime boundary without an interactive Mosaic identity wizard. Preserve standalone
-wizard behavior and canonical-roster ownership of exact seat identity.
-
-## Source evidence accepted for local verification
-
-Daphne's canary Run-7 report is reachable from jarvis-brain `origin/main` at
-`8bf94afeb8c7d5df96cdd4a4508e75a1d2999710`,
-`docs/reports/2026-08-16_sbx-canary-greenfield-e2e.md`. The earlier local object
-`6c0b6fc70ae6a179a1b7ff9dedfc54e9adccd19a` is not reachable from an origin ref and is not used as
-shipping provenance. Run 7 measured:
-
-```text
-systemd -> start-agent-session.sh -> mosaic yolo pi (PID 3726)
-                                  -> child mosaic wizard (PID 3762)
-```
-
-The pane was preserved when Run 7 was captured. Formal review ID 168 records that an authorized
-rollback occurred later. This task never accessed or altered the canary VM, pane, snapshot, or
-rollback state. Product behavior is independently tested here with temporary roots and fake runtime
-executables.
-
-## Controls
-
-- Original base: `origin/next@476db12b92971634b67fd2057b7577ee5894e449`.
-- PR: #1268, first pushed head `43fa0477877e0d0f110da8d11c3033b40ddeb191`.
-- `DATABASE_URL` remains unset for local tests.
-- No runtime/provider credential or token value, VM, installed Mosaic tree, unit, timer, PATH profile,
-  or live tmux session is read or mutated. Standard Gitea/Woodpecker wrappers authenticate metadata
-  reads/writes without exposing credential values.
-- Tiny's runtime-preflight and `start-agent-session.sh` PATH work remain out of scope.
-- Held PR #1213 is not a dependency.
-
-## Requirements-to-evidence map
-
-| Acceptance criterion                                                   | Method                                                          | Evidence                      |
-| ---------------------------------------------------------------------- | --------------------------------------------------------------- | ----------------------------- |
-| No-TTY fleet first start avoids wizard and reaches runtime             | Exact-source built CLI with piped stdin                         | CLI GREEN                     |
-| Missing top-level identity files are initialized from shipped defaults | Exact-byte and `0600` assertions                                | CLI + filesystem GREEN        |
-| Exact seat identity remains roster-owned                               | Captured argv; mismatched/blank class no-side-effect refusals   | CLI GREEN                     |
-| Existing operator identity is never overwritten                        | Custom bytes/mode with defaults removed                         | CLI + filesystem GREEN        |
-| Concurrent/repeated first start is safe                                | Four parallel CLIs plus repeated launch                         | CLI GREEN                     |
-| Missing/unsafe defaults and destinations fail before partial mutation  | Missing, target/dangling symlink, oversized, invalid-root cases | Filesystem/CLI GREEN          |
-| Validated `USER.md` cannot be replaced by an external symlink          | Seed, replace, compose at point of use                          | Composition GREEN             |
-| Standalone launch retains wizard                                       | Same built CLI without fleet identity                           | CLI GREEN                     |
-| Built-CLI evidence cannot use stale ignored `dist/`                    | Build-with-dependencies gate before Vitest                      | Package script + command gate |
-
-## Initial RED
-
-Production source remained unchanged after adding the first reproducer. The CLI was built from
-`origin/next@476db12` before the test.
-
-```bash
-env -u DATABASE_URL pnpm --filter @mosaicstack/mosaic exec vitest run \
-  src/commands/launch-first-start.spec.ts
-```
-
-Exit `1`; one file and one test failed. Output included:
-
-```text
-[mosaic] SOUL.md not found. Running setup wizard...
-◆  What would you like to do?
-[mosaic] Setup failed. Run: mosaic wizard
-AssertionError: expected 1 to be +0
-```
-
-The fake runtime-boundary capture was not created. Complete stdout/stderr was retained at
-`/tmp/1264-red.out` during that work session.
-
-## Formal-review remediation RED
-
-Daphne's exact-head review ID 168 requested changes at `43fa0477`. Before changing production code,
-new regressions were run against an exact-source build. Four tests failed while the existing 1,568
-passed:
-
-1. valid roster name plus mismatched ambient class seeded both files before refusal;
-2. dangling `SOUL.md` allowed `USER.md` to be published before refusal;
-3. dangling `USER.md` allowed `SOUL.md` to be published before refusal; and
-4. replacing a securely validated `USER.md` with an external symlink was followed by composition.
-
-This establishes that all four review-168 findings were observable on the pushed implementation.
-
-Daphne's review ID 169 then found two more exact-head failures at `9dc90be7`. Before production
-changes, four new assertions failed:
-
-1. standalone composition routed an unreadable optional `USER.md` through the Linux-only descriptor
-   reader instead of the legacy portable tolerant path; and
-2. explicit `MOSAIC_AGENT_CLASS` values `""`, `" "`, and tab were treated as absent, seeded both
-   identity files, and reached runtime.
-
-The replacement-symlink case was also moved under a valid roster identity so it tests the fleet-only
-security boundary rather than standalone behavior.
-
-## Final GREEN
-
-The production-kind command builds Mosaic and all workspace dependencies before invoking Vitest,
-because `dist/` is ignored and may otherwise be absent or stale:
-
-```bash
-env -u DATABASE_URL sh -c '
-  pnpm --filter @mosaicstack/mosaic... build &&
-  pnpm --filter @mosaicstack/mosaic exec vitest run \
-    src/commands/fleet-first-start-identity.spec.ts \
-    src/commands/launch-first-start.spec.ts \
-    src/commands/launch.spec.ts \
-    src/commands/compose-contract.spec.ts \
-    src/config/file-adapter.test.ts \
-    src/cli-smoke.spec.ts
-'
-```
-
-Exit `0`: `6/6` files, `128/128` tests.
-
-- 15 real-CLI/no-TTY tests cover exact roster name/class, byte-equal `0600` seeds, no-clobber,
-  partial seed, missing/symlink defaults, unknown/padded/blank name, mismatched or explicitly blank
-  class, standalone wizard preservation, and four concurrent starts.
-- 12 direct filesystem tests cover complete publication, existing operators, idempotence, source
-  prevalidation, target and dangling destination links, invalid roots, oversized input, and
-  unexpected link errors.
-- Composition coverage deterministically replaces a valid fleet seat's validated `USER.md` with an
-  external symlink and requires refusal at point of use. A separate standalone case proves tolerant
-  optional composition remains outside the Linux-only fleet reader.
-
-Full package gate (which rebuilds Mosaic itself after the clean-checkout dependency build):
-
-```bash
-env -u DATABASE_URL pnpm --filter @mosaicstack/mosaic run test:vitest
-```
-
-Exit `0`: `88/88` files, `1,577/1,577` tests.
-
-Focused helper + point-of-use coverage:
-
-```text
-2 files, 53/53 tests
-Statements 97.84% | Branches 91.66% | Functions 100% | Lines 97.84%
-Exit 0
-```
-
-Final repository gates after remediation:
-
-```text
-pnpm preflight    exit 0
-pnpm typecheck    45/45 tasks, exit 0
-pnpm lint         25/25 tasks, exit 0
-pnpm build        25/25 tasks, exit 0
-pnpm format:check exit 0
-git diff --check  exit 0
-```
-
-Pre-PR targeted shell runs on the unchanged shell surfaces also passed:
-
-```text
-bash framework/tools/fleet/test-start-agent-session.sh                 exit 0 locally
-bash framework/tools/quality/scripts/test-install-migration.sh         21 passed, 0 failed
-bash framework/tools/_scripts/test-mosaic-init-rce.sh                   PASS
-```
-
-The aggregate local `test:framework-shell` run stopped at `invariant_r_unittest.py`: installed
-operator-global Pi is `0.84.2`, while the invariant is measured for `0.84.1`. Later aggregate stages
-remain unmeasured except the targeted suites above. Root `pnpm test` remains locally **UNTESTED**
-because this checkout prohibits the PostgreSQL-dependent gateway isolation path.
-
-## Review and security evidence
-
-- Initial Codex review found padded-name mutation-before-refusal; it was fixed with three
-  no-side-effect regressions.
-- Codex review of the formal-review remediation: `approve`, confidence `0.88`, 6 files, no findings.
-- Codex security review of the remediation: risk `none`, confidence `0.93`, 9 files, no findings.
-  Its sandbox could not execute Vitest because Vite attempted a write on a read-only mount; the
-  executor-owned results above are the test evidence.
-- Daphne formal review ID 168 at exact head `43fa0477`: `REQUEST_CHANGES`, four blocking groups; all
-  closed by review 169.
-- Daphne formal review ID 169 at exact head `9dc90be7`: `REQUEST_CHANGES`, two blocking groups
-  (standalone portability and explicit blank class). Both now have red-first regressions and local
-  green remediation.
-- Codex review of review-169 remediation: `approve`, confidence `0.90`, 4 files, no findings.
-- Codex security review of review-169 remediation: risk `none`, confidence `0.90`, 4 files, no
-  findings. Exact-new-head Daphne re-review is pending until that head is pushed.
-
-## CI evidence and external blocker
-
-Pipeline 2445 ran against exact first head `43fa0477`:
-
-- install, sanitization, upgrade guard, typecheck, lint, and format passed;
-- Mosaic Vitest passed `88/88`, `1,568/1,568`; and
-- the test step emitted exactly one `FAIL:` line:
-
-```text
-FAIL: host provides 'pi' in the system path; missing-binary cases are not measurable here
-```
-
-That line comes from the inherited `test-start-agent-session.sh` CI-fit guard, not #1264. Fred filed
-the correction as PR #1270. Its pipeline 2448 is terminal green and proves the four formerly masked
-suites execute, but #1270 is not merged, so `next` still carries the failing chain. A new #1268
-pipeline 2449 at `9dc90be7` reproduced the same single inherited `FAIL:` after Mosaic passed
-`1,573/1,573`. A new pipeline is pending the review-169 remediation push. Terminal-green #1268 CI is
-not claimed.
-
-PR #1268's envelope was read back as `user.login=mos-dt-0`; its commit is explicitly authored and
-committed by `goals <[email protected]>`. No goals Gitea login exists on this host, and no
-other principal was borrowed. The cross-wrapper principal defect is tracked in #1272.
-
-## Explicitly untested
-
-- Canary VM remediation/restart: **UNTESTED and prohibited**.
-- Real Pi authentication/provider prompt and task execution: **UNTESTED**.
-- PR #1213 composition layer: **UNTESTED and not required**.
-- Deployment/published npm behavior: **UNTESTED until merge/release**.
-- Local PostgreSQL execution/migration: **UNTESTED and prohibited**.
-
-The local gate proves Mosaic crosses its identity boundary and reaches a fake lease-runtime boundary;
-it does not claim provider readiness, deployment, or a currently running canary seat.

docs/scratchpads/1264-unattended-first-start.md

@@ -1,104 +0,0 @@
-# #1264 — Unattended fleet first start
-
-## Tracking
-
-- Issue: `mosaicstack/stack#1264`
-- PR: `mosaicstack/stack#1268`
-- Branch: `fix/1264-fleet-unattended-first-start`
-- Base: `origin/next@476db12b92971634b67fd2057b7577ee5894e449`
-- First pushed head: `43fa0477877e0d0f110da8d11c3033b40ddeb191`
-- Current remediation worktree: `/var/home/jason.woltje/agent-work/1264-review2-remediation`
-- Coordinator: Fred; reviewer must be neither Fred nor this implementation seat.
-- `docs/TASKS.md` is orchestrator-owned and is not modified by this worker.
-
-The original `/var/home/jason.woltje/agent-work/1264-unattended-first-start` and first remediation
-worktrees were removed without force after each pushed head and clean state were verified. The
-Fred-authorized plain-Git worktree exception was reused for exact-head review remediation because
-`/src` remains unavailable.
-
-## Objective
-
-A roster-owned fleet seat launched from systemd on a clean host must cross Mosaic's first-run identity
-gate without a human or TTY, while retaining exact name/class from the canonical roster and
-preserving the standalone interactive wizard.
-
-## Intake and boundaries
-
-- Shipping canary provenance is jarvis-brain `origin/main` commit
-  `8bf94afeb8c7d5df96cdd4a4508e75a1d2999710`. The earlier local `6c0b6fc...` object is not used.
-- The Run-7 pane was preserved when evidence was captured; formal review records a later authorized
-  rollback. This task never accessed or altered the canary.
-- Tiny's concurrent runtime-preflight, `start-agent-session.sh`, and #1258 PATH seam remain untouched.
-- Held PR #1213 is not a dependency.
-- No runtime/provider credential values or provider calls, installed-host changes, PostgreSQL, unit,
-  timer, or profile mutation. Tests use temporary roots and fake executables only; Gitea/Woodpecker
-  metadata operations use standard wrappers without exposing credentials.
-
-## Requirements and design
-
-- PRD IDs: `FCM-REQ-12`, `AC-FCM-10`; `FCM-REQ-11` is reserved by #1256.
-- A present fleet name must be nonblank, whitespace-exact, and resolve through the canonical roster.
-- Any defined ambient class, including blank/whitespace, must canonicalize to the roster class before
-  mutation; only undefined means absent.
-- Preflight all destination directory entries with no-follow existence semantics so dangling links
-  fail before counterpart publication.
-- Seed only missing top-level files from bounded regular defaults with owner-private, atomic,
-  no-clobber hard links.
-- Generic defaults are behavior, not identity or authority.
-- Securely consume fleet `USER.md` through a Linux descriptor at composition time.
-- Standalone composition retains the portable tolerant USER read and missing identity retains the
-  wizard.
-
-## Progress
-
-- [x] Issue, canary report, Tiny collision state, and PRD read/amended.
-- [x] Initial production-kind RED captured with a real built CLI and no TTY.
-- [x] Implementation, tests, user/admin/developer docs, QA, and indexes delivered.
-- [x] Initial automated review finding (padded name before write) remediated.
-- [x] Commit `43fa0477` pushed; PR #1268 opened against `next`; original worktree removed cleanly.
-- [x] Daphne formal review ID 168 completed on exact first head: `REQUEST_CHANGES` with four groups.
-- [x] All four review-168 groups reproduced red before remediation and passed at `9dc90be7`.
-- [x] Daphne review ID 169 completed on `9dc90be7`: review-168 closures confirmed; two new blockers.
-- [x] Review-169 portability and blank-class blockers reproduced red and now pass locally.
-- [x] Review-169 Codex review approved; security review risk `none`.
-- [ ] Commit/push second remediation with explicit goals author/committer; verify remote object/content.
-- [ ] Daphne exact-new-head re-review.
-- [ ] Terminal #1268 CI. Pipeline 2445's only `FAIL:` was the inherited Pi-PATH CI-fit guard; PR
-  #1270's pipeline 2448 is green, but #1270 is not merged.
-- [ ] Remove the clean remediation worktree after push.
-
-## Test evidence
-
-### Initial RED
-
-The built `origin/next` CLI entered `mosaic wizard`, rendered `What would you like to do?`, exited 1,
-and never created the fake runtime-boundary capture.
-
-### Formal-review RED
-
-Against exact first-head production code, four new tests failed while 1,568 existing tests passed:
-class mismatch mutated before refusal; each dangling destination left its counterpart; and a
-replacement `USER.md` symlink was consumed by composition. Review-169 RED then proved standalone
-composition hit the Linux-only reader and three explicit blank/whitespace class cases seeded and
-launched.
-
-### Final local GREEN
-
-- Exact-source focused gate: `6/6` files, `128/128` tests.
-- Full exact-source Mosaic Vitest: `88/88` files, `1,577/1,577` tests.
-- Helper + point-of-use coverage: `53/53`; 97.84% statements/lines, 91.66% branches, 100% functions.
-- Root preflight passed; typecheck `45/45`, lint `25/25`, build `25/25`.
-- Initial targeted shell gates passed: start-agent-session, install migration `21/21`, init-RCE.
-- Local aggregate framework shell stops at operator-global Pi `0.84.2` versus measured `0.84.1`.
-- Local root `pnpm test` remains unrun because the checkout prohibits its PostgreSQL-dependent path.
-
-The full evidence and command boundaries are in
-`docs/reports/qa/2026-08-16-1264-unattended-first-start.md`.
-
-## Review / delivery notes
-
-- Review-168 remediation Codex review: approve `0.88`; security risk `none` `0.93`.
-- Review-169 remediation Codex review: approve `0.90`; security risk `none` `0.90`.
-- PR envelope reads `mos-dt-0`; the commit reads goals/goals. No goals Gitea principal exists on this
-  host, so no other principal will be borrowed. Tracked in #1272.
-- PR #1270 is pushed, not merged. Do not represent `next` or #1268 CI as green until measured.

docs/scratchpads/README.md

@@ -7,10 +7,6 @@
 - [DOCS-IA-001 — information architecture](DOCS-IA-001.md) — completed structure-design and documentation-contract record.
 - [DOCS-IA-002 — catalog audit and migration](DOCS-IA-002-catalog-audit.md) — active coordinator progress, autonomous lane state, verification evidence, and authority blockers.
 
-## Active implementation records
-
-- [Issue #1264 — unattended fleet first start](1264-unattended-first-start.md) — plan, RED/GREEN evidence, collision boundaries, and PR lifecycle state.
-
 Completed scratchpads may remain here when they provide useful delivery provenance. Their conclusions must be reflected in the owning canonical page before the scratchpad is treated as complete.
 
 ## Related

docs/scratchpads/ri-050.md

@@ -0,0 +1,242 @@
+# Scratchpad — RI-050 orchestrator (jarvis, dragon-lin)
+
+Mission: alpha 0.0.50 release-integrity floor. Issue #1275. Base `next` @ 476db12b.
+Design SSOT: jarvis-brain `docs/plans/2026-08-16_mosaic-stack-sdlc-protocol.md` (SDLC-D-033..038).
+
+## Mode (Jason's directives)
+
+- Orchestrator: jarvis (this session, dragon-lin). NOT mos-claude; work stays on this host.
+- Workers: local pi headless — `pi --model zai/glm-5.3:high -p` in the card's worktree, tools read,bash,edit,write.
+- Delegation override of stack AGENTS.md `agent` column: rows carry `pi-glm-5.3` (outside cron table so no auto-claim).
+- Target branch: `next`. Cards branch from `origin/next`, squash-merge via PR.
+
+## Operational constraints (measured this session)
+
+- Main checkout at `/home/jwoltje/src/mosaic-stack` is a dirty diverged `main` (ahead 1139/behind 711) — NEVER touched. All work in `/home/jwoltje/src/mosaic-stack-worktrees/<branch>`.
+- Disk: /home 187G free. /tmp only 8.7G — keep pnpm stores/node_modules under /home.
+- `main` and `next` have DIVERGED; PRs target `next`.
+- Identity: pin `GITEA_LOGIN=mosaicstack-jarvis` for all wrapper ops. Issue #1275 verified authored by @jarvis.
+- `ci-queue-wait.sh` on this host is fail-open (board: fix #1032 not installed) — substitute SHA-status checks via `/commits/{sha}/status` and diff failing step names.
+- CI on PRs runs `pull_request` pipelines (any branch) incl. ci-postgres service. Push CI runs on main only; publish runs on push/tag to next + manual.
+- Wrapper gaps on this host per board (7 gaps; e.g. no pr-review-list, issue-assign broken, pr-merge makes no trailers): verify outcomes by reading back provider state, never trust rc alone.
+- Publish pipeline currently: install → build → publish-npm/publish-next-npm (+image). No verify. CI steps: install, sanitization, upgrade-guard, typecheck, lint, format, test, ci-postgres.
+
+## Budget
+
+Soft cap 250K. Projected 190K across 10 cards. Track per-card used vs estimate in TASKS.md notes.
+
+## Progress log
+
+- 2026-08-16 23:52 — Issue #1275 created (@jarvis verified).
+- 2026-08-16 23:5x — Bootstrap branch `docs/ri-050-mission-bootstrap` from origin/next@476db12b; PRD section + TASKS.md + this scratchpad written. RI-0-001 in-progress.
+
+## Wave 1 dispatched (2026-08-17 00:35)
+
+- RI-1-001 worker: pi glm-5.3:high, pid 2322125, worktree ri-1-001, log /var/tmp/ri-050/ri-1-001-run.log
+- RI-2-001 worker: pi glm-5.3:high, pid 2322126, worktree ri-2-001, log /var/tmp/ri-050/ri-2-001-run.log
+- Gotcha recorded: pi has no -f flag (that's pi-do.sh); pass brief as positional message. First launch died "Unknown option: -f" — relaunched.
+- CI lane: PR #1276 (bootstrap) fails `test` at base like every next PR — fred's green #1270 unblocks (comms sent 2026-08-17T05:21Z, `comms/20260817T052148Z__from-jarvis__650fe8.md`). Merge gate for all RI PRs queues behind #1270.
+- Live RI-N1 evidence posted to #1275 (comment 22915): pipeline 2439 publish-next-npm SUCCESS beside build-gateway FAILURE.
+
+---
+
+# HANDOFF — RI-050 continuation (written 2026-08-17 ~08:45 UTC, jarvis/dragon-lin)
+
+You are taking over the alpha 0.0.50 release-integrity workstream in place. Everything you
+need is on the remote. Read this whole file, then `docs/release-integrity/TASKS.md` (same
+branch), then the PRD section (`docs/PRD.md` § Release Integrity Workstream, same branch).
+
+## Identity / mode
+
+- Orchestrator identity: `jarvis` (dragon-lin). You continue as the RI-050 orchestrator under
+  whatever identity Jason gives you — if you are NOT jarvis, say so in comms and PR bodies.
+- Jason's standing directives for this mission: work happens on THIS repo (mosaicstack/stack),
+  PRs target `next` (NOT main), workers are local pi headless sessions on
+  `zai/glm-5.3:high`. Do not hand this to mos-claude. Do not borrow other seats' lanes.
+- All wrapper ops: pin `GITEA_LOGIN=mosaicstack-jarvis` (issue #1275 was verified authored by
+  @jarvis; keep identity consistent or verify yours with issue-view and READ BACK user.login).
+- CI substitution rule (this host's ci-queue-wait.sh is fail-open; fix #1032 not installed):
+  judge CI by SHA-status via `/api/v1/repos/mosaicstack/stack/commits/{sha}/status` or the
+  woodpecker API (`pipeline-status.sh -r mosaicstack/stack -n N -f json`), and DIFF THE
+  FAILING STEP NAMES rather than trusting rc.
+
+## Mission state at handoff
+
+Mission: alpha 0.0.50 release-integrity floor. Issue #1275 (open, has live-evidence comment).
+Decisions SDLC-D-033..038 live in jarvis-brain
+`docs/plans/2026-08-16_mosaic-stack-sdlc-protocol.md` (normative text also mirrored in the
+PRD section on this branch, so this repo is self-sufficient).
+
+Base: `origin/next` @ 476db12b. NOTE: `main` and `next` have DIVERGED — never base on main.
+
+Branches (all pushed, all clean trees):
+
+- `docs/ri-050-mission-bootstrap` @ 5114faa2 → PR #1276 (open, mergeable) — bootstrap docs +
+  this scratchpad + TASKS.md DAG. STATUS: CI red on `test` only, which is the known lane-wide
+  failure (see blocker below); own prettier issue already fixed.
+- `feat/ri-050-publish-gate` @ 0aa5ed35 → PR #1277 (open, mergeable) — RI-1-001 COMPLETE
+  (worker reported success, orchestrator review PASSED: verify step asserts CI_COMMIT_SHA ==
+  git rev-parse HEAD then runs canonical `pnpm verify:release`; every publish/image step
+  depends_on verify directly, confirmed by parsing the DAG: publish-npm, publish-next-npm,
+  build-gateway/appservice/web all -> [build, verify]; invariant test
+  scripts/verify-release.test.mjs passes 7/7 locally with negative fixtures). CI: same known
+  lane-red `test` step only.
+- `fix/ri-050-forge-fail-closed` @ 99b8f6ea → PR #1278 (open, mergeable) — RI-2-001 worker
+  reported success (typed `FORGE_*` capability errors, --simulate typed simulated everywhere,
+  vacuous true/echo gates replaced, closed ForgeOutcome set, 116 tests green incl. 16 new).
+  ORCHESTRATOR REVIEW NOT YET DONE — your first job. Review the diff
+  (1391 insertions across forge src), check the fail-closed paths and that simulated
+  results cannot satisfy any consumer, run `pnpm --filter @mosaicstack/forge test`.
+
+## The one blocker
+
+Every `next` PR pipeline is red on ONE assertion:
+`packages/mosaic/framework/tools/fleet/test-start-agent-session.sh:103` ("host provides 'pi'
+in the system path"). Pre-existing at base; affects PRs #1276/#1277/#1278 identically.
+fred's PR #1270 ("unblocks every PR on next") is green and open — it is HIS to merge; do not
+merge it yourself. jarvis sent comms (`comms/20260817T052148Z__from-jarvis__650fe8.md` in
+jarvis-brain) asking merge timing; no reply yet as of handoff. Merge gates for ALL RI PRs
+queue behind #1270 landing. Until then: review/develop freely, merge nothing that needs the
+green gate (docs-only #1276 arguably could merge red-lane with Jason's explicit call — ask,
+don't assume).
+
+## Remaining DAG (docs/release-integrity/TASKS.md is canonical)
+
+Wave 2 (next): RI-2-002 MACP fail-closed (brief pattern: mirror RI-2-001 for
+packages/macp/src/gate-runner.ts — empty commands, stub executors, unimplemented CI-provider
+gates fail closed; explicit simulate) and RI-4-001 PRD authority (one PRD service;
+@mosaicstack/prdy docs/prdy authoritative via `mosaic mission --plan`; `mosaic prdy` routes
+or becomes named Markdown adapter; mission<->PRD linkage persists — see PRD RI-N3).
+Wave 3: RI-3-001 probe inventory (docs), RI-5-001 web stale-safety.
+Wave 4: RI-1-002 negative-control tests, RI-3-002 TS evaluator absorbs shell probes.
+Final: RI-V-001 evidence pack (real green next publish run post-gate + all cards verified).
+
+## Worker mechanics (measured, reuse)
+
+- Dispatch: create worktree `git -C /home/jwoltje/src/mosaic-stack worktree add
+/home/jwoltje/src/mosaic-stack-worktrees/<id> -b <branch> origin/next`, write a brief to
+  /var/tmp/ri-050/, then run from INSIDE the worktree:
+  `pi -p --no-session --model zai/glm-5.3:high --tools read,bash,edit,write "$(cat brief.md)"`
+  (pi has NO -f flag — pass the brief as a positional message; first dispatch died on that).
+- Briefs for 1-001/2-001 are at /var/tmp/ri-050/ on dragon-lin (may not survive; the
+  pattern is fully described above and in TASKS.md).
+- Briefs must carry: worktree path, branch, base, requirements, known base-red list (so the
+  worker doesn't chase it), gates to run, PR creation command with GITEA_LOGIN pin, "do NOT
+  merge, do NOT touch docs/TASKS.md", and the JSON report format.
+- Verify worker claims: read the PR, run their tests yourself, parse pipeline step names.
+
+## Do-not-touch
+
+- Main checkout at /home/jwoltje/src/mosaic-stack (dirty diverged main) — never touch.
+- fred's open PRs (#1270 and others) — review evidence welcome, merging his is not yours.
+- Other RI PRs' authors' lanes: #1277/#1278 are yours to gate and merge ONCE lane is green
+  and review is recorded.
+- Never `--no-verify`; never bypass the wrapper-fails-closed rule (wrapper failure ⇒
+  `blocked + report exact command + stop`).
+
+## Session-restore command sequence
+
+1. `git -C /home/jwoltje/src/mosaic-stack-worktrees/ri-050 fetch origin --prune`
+2. Read this file + `docs/release-integrity/TASKS.md` + PRD section.
+3. Check PR states (#1270, #1276, #1277, #1278) and lane CI (SHA-status per above).
+4. Review RI-2-001 (PR #1278) if not yet done; then dispatch wave 2.
+
+— jarvis, 2026-08-17
+
+---
+
+# CONTINUATION — fargo (sb-it-1-dt)
+
+Orchestrator seat is now **fargo** on sb-it-1-dt (Jason, 2026-08-17): Claude seat, worktree discipline
+per fred's ruling (`~/agent-work/<slug>`, create → work → commit → push → remove as one act; the
+helper's `/src` refusal is a web1 convention, does not bind here). fred supports; lane rulings are
+his. Workers remain local pi `zai/glm-5.3:high` + limited Claude per Jason.
+
+## 2026-08-17 — RI-2-001 independent review DONE
+
+- **PR #1278 APPROVED** (Gitea review 172, pinned to head 99b8f6ea). Executed evidence, not read-only:
+  forge suite 116/116 at head (matches PR claim), forge lint green, forge typecheck green after
+  building `@mosaicstack/macp` dist (TS2307 on bare `pnpm install --frozen-lockfile` is a
+  minimal-install build-order artifact — the macp import is type-only, vitest passes unbuilt; CI
+  installs build workspace deps, hence green there), **workspace typecheck 45/45 at head**,
+  consumer sweep: no external type consumers of RunManifest/StageStatus/ForgeTaskResult/
+  TaskExecutor; only importer of the package is packages/mosaic via registerForgeCommand
+  (smoke test asserts registration/help only — cannot break). Digest gate (shaggy's) before==after
+  with both-arm reactivity controls.
+- CI red on #1276/#1277/#1278: lane-wide `test` failure only
+  (test-start-agent-session.sh:103, fred's guard mis-wired; #1270 unwires it). Fred measured log
+  content: one real byte-identical failure per pipeline (2456/2457/2458); 13 of ~14 `FAIL` grep
+  hits are passing fail-loud test NAMES. **The red carries no information about the RI changes.**
+- Non-blocking finding: README L141-143 + skills/mosaic-forge/SKILL.md document bare
+  `mosaic forge run`/`resume`, which now exits 1 FORGE_NO_EXECUTOR — fast-follow docs touch.
+- **Identity incident, ruled on by fred:** review 172 recorded under shared host principal
+  mos-dt-0, not fargo. Mechanism (measured, wrapper source): pr-review.sh resolves its acting login
+  from the tea login list only; no fargo tea login on this host → silent host-default fallback;
+  MOSAIC_GIT_IDENTITY is only read in detect-platform.sh get_gitea_token's fallback arm, never
+  reached. Exact-id read-back verifies against the writing token, so it passed while attribution
+  was wrong — durable-provenance machinery proves the write, not the seat. Fred's ruling: review
+  172 stands (substance/verdict/pin correct; label wrong); NO re-approval (one approval,
+  annotated, is the stronger record); fred posts the provenance correction under @fred with
+  --login fred-ms (hard-fail path); no fargo tea login ever (freeze + Jason's to authorize);
+  tooling gap filed by fred. Also explains (does not reopen) #1228's mos-dt-0 attribution.
+- Merge gate: all RI PRs queue behind fred's green #1270 (Jason's call).
+
+## Next
+
+1. Wave 2 dispatch: RI-2-002 (MACP fail-closed, mirror RI-2-001 pattern for
+   packages/macp/src/gate-runner.ts) + RI-4-001 (PRD authority). Two parallel workers max.
+2. Docs fast-follow (README + mosaic-forge skill) — fold into #1276 or a tiny docs card.
+3. RI-V-001 evidence at the end.
+
+— fargo, 2026-08-17
+
+---
+
+# RESUMPTION + DAILY-HANDOFF PROTOCOL (Jason, 2026-08-17)
+
+Orchestrator seat is back with **jarvis** (dragon-lin). Expect daily handoff between jarvis
+and fargo. Protocol (both seats, every handoff):
+
+1. **This file is the shared mission log.** Append a dated section per session: state
+   measured, actions taken, PR/review states, next actions. Never rewrite prior sections.
+2. **TASKS.md stays current within one session** — status, PR number in notes, review
+   evidence. Stale rows are handoff debt.
+3. **Cross-review rule (SDLC-D-011 in practice):** the reviewing seat must differ from the
+   producing seat. jarvis reviews fargo-dispatched PRs, fargo reviews jarvis-dispatched
+   PRs. Producers are always pi workers; dispatching seats verify before push; the other
+   seat records the Gitea review.
+4. Handoff = append here + push + (optional) issue #1275 comment if a decision changed.
+
+## RESUMED — jarvis/dragon-lin, 2026-08-17 (afternoon)
+
+- Measured: next = 8199261c (#1270 merged — lane unblocked for new PRs). #1293/#1294
+  (fargo, wave 2) CI-green, mergeable, no recorded reviews. #1276/#1277/#1278 still based
+  on 476db12b with stale red CI → need rebase onto 8199261c. #1278 review pinned to old
+  head 99b8f6ea by @mos-dt-0 (fargo's, mis-attributed per his note) — rebase will dismiss
+  it; re-approval must come from fargo/fred (author is @jarvis, cannot self-approve).
+- Live evidence #2: push pipeline 2462 (the #1270 merge itself) ran publish-next-npm
+  SUCCESS beside build-gateway FAILURE again.
+- Plan: rebase the three original branches; independently review #1293/#1294; merge order
+  once green+reviewed: #1276 (docs) → #1277 (publish gate) → #1278/#1293/#1294 (code).
+  After #1277 merges, watch the next push pipeline prove the verify gate live.
+- fargo's non-RI PRs (#1291/#1296/#1297/#1281) stay strictly his lane.
+
+## jarvis session 2026-08-17 (evening) — reviews, rebases, merge plan
+
+- Rebased #1276/#1277/#1278 onto 8199261c (heads 59e2c460 / 46784c8d / 4917df1f);
+  invariant tests 7/7 and forge 116/116 re-run green at new heads. #1270 touched
+  test-enumeration-exclusions.txt + package.json, NOT ci.yml — no semantic overlap with
+  #1277's ci.yml changes (checked, was a real concern).
+- Independent reviews recorded: #1293 APPROVED (review 173; macp 109/109; fail-closed paths
+  + aggregate state machine verified), #1294 APPROVED (review 174; prdy 20/20 + command
+  specs 9/9; single-writer + linkage persistence + labeled export + conflict-aware import
+  verified). Note: 19 unrelated mosaic suites fail on bare minimal install (known workspace
+  build-order artifact, documented by fargo) — not this change.
+- Measured: `next` has NO branch protection (API: only main listed). Cross-seat review
+  discipline is protocol-enforced, not Gitea-enforced. Flagged to fargo for Jason: direct
+  pushes to next trigger ungated publishes; protection is Jason's call (#1231 adjacent).
+- Merge order planned: #1276 (docs-only — no publish run) -> #1277 (first gated publish)
+  -> #1278 -> #1293 -> #1294. Sent fargo review requests with pinned head SHAs
+  (comms/20260818T011932Z__from-jarvis__a9c02b.md). Not merging #1293/#1294 before my three
+  clear fargo's review — order optimality beats speed; every pre-#1277 merge publishes ungated.
+- CI on the three rebased heads: pending at time of this entry.

eslint.config.mjs

@@ -34,6 +34,7 @@ export default tseslint.config(
             'packages/storage/vitest.config.ts',
             'packages/mosaic/vitest.config.ts',
             'packages/mosaic/__tests__/*.ts',
+            'packages/forge/__tests__/*.ts',
             'tools/federation-harness/*.ts',
           ],
         },

package.json

@@ -9,6 +9,7 @@
     "preflight": "node scripts/preflight.mjs",
     "clean:generated": "node scripts/clean-generated.mjs",
     "typecheck": "pnpm preflight && turbo run typecheck",
+    "verify:release": "node scripts/verify-release.mjs",
     "test:checkout": "node --test scripts/*.test.mjs",
     "test": "pnpm test:checkout && turbo run test && pnpm run test:installer",
     "test:installer": "bash tools/install-next-lane.test.sh",

packages/forge/PLAN.md

@@ -539,3 +539,43 @@ Not every brief needs full Board of Directors review. The classification system
 ### Backward compatibility
 
 Existing briefs without a `class` field are auto-classified. The default (no matching keywords) is `strategic`, so all existing runs get the full pipeline unless keywords trigger `technical`.
+
+---
+
+## Fail-Closed Execution & Explicit Simulation (SDLC-D-035)
+
+**Added:** 2026-08-17
+
+Forge fails closed when a required capability is missing. It never runs a
+pipeline with a stub executor and reports success.
+
+### Normal mode (default)
+
+- No task executor wired → the CLI exits nonzero with the typed capability
+  error `FORGE_NO_EXECUTOR`. No run is created.
+- A stage whose gate is approval-based (board approval, planning approvals,
+  remediation re-review, discovery/analysis attestations) records a typed
+  `waiting-for-authority` stage result and raises `FORGE_AUTHORITY_REQUIRED`.
+  It never passes vacuously.
+- A stage whose gate requires an unwired provider (AI reviewer, CI pipeline)
+  records a typed `blocked` stage result and raises `FORGE_NO_REVIEWER` /
+  `FORGE_NO_CI_PIPELINE`. The synthetic echo-review approval in `06-review`
+  and all vacuous `true` gates were removed.
+
+### Explicit simulation (`--simulate`)
+
+Opts into stub/synthetic execution. Every stage result, every gate result, and
+the run manifest carry the distinct typed status `simulated` (manifest also
+records `mode: "simulated"`). `simulated` is a non-satisfying outcome:
+`isSatisfyingOutcome()` and all completion/gate consumers treat only `passed`
+as satisfying. The CLI exits 0 for a simulated run only because the caller
+explicitly passed `--simulate`, and prints a loud SIMULATED banner.
+
+### Typed outcome model
+
+Every gate/task outcome is one of the closed set
+`passed | failed | blocked | error | waiting-for-authority | simulated |
+not-applicable`, with the reason recorded on the stage status and each gate
+result in `manifest.json`. Missing implementations, missing gate evidence,
+unknown stages, process errors, and timeouts map to fail-closed members —
+never to `passed`.

packages/forge/__tests__/fail-closed.test.ts

@@ -0,0 +1,319 @@
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
+import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+
+import { generateBoardTasks } from '../src/board-tasks.js';
+import { STAGE_SPECS } from '../src/constants.js';
+import { ForgeCapabilityError } from '../src/errors.js';
+import {
+  evaluateStageGates,
+  gateLabel,
+  isCommandGate,
+  isSatisfyingOutcome,
+} from '../src/outcomes.js';
+import { loadManifest, runPipeline } from '../src/pipeline-runner.js';
+import type { ForgeTask, ForgeTaskResult, TaskExecutor } from '../src/types.js';
+
+/**
+ * Mock real executor that returns typed results.
+ *
+ * Command gates are "verified" by the mock so normal-mode runs can pass
+ * mechanically gated stages; authority/provider gates are never reported
+ * because they have no mechanical implementation.
+ */
+function createTypedExecutor(options?: {
+  failStage?: string;
+  gateOutcomes?: Record<string, 'passed' | 'failed' | 'simulated' | 'error' | 'blocked'>;
+}): TaskExecutor & { submittedTasks: ForgeTask[] } {
+  const submittedTasks: ForgeTask[] = [];
+  return {
+    submittedTasks,
+    async submitTask(task: ForgeTask) {
+      submittedTasks.push(task);
+    },
+    async waitForCompletion(taskId: string): Promise<ForgeTaskResult> {
+      const task = submittedTasks.find((t) => t.id === taskId);
+      const stageName = task?.metadata?.['stageName'] as string | undefined;
+
+      if (options?.failStage && stageName === options.failStage) {
+        return {
+          task_id: taskId,
+          outcome: 'failed',
+          reason: 'mock task failure',
+          completed_at: new Date().toISOString(),
+          exit_code: 1,
+          gate_results: [],
+        };
+      }
+
+      const gateResults = (task?.qualityGates ?? [])
+        .filter((gate) => isCommandGate(gate))
+        .map((gate) => {
+          const label = gateLabel(gate);
+          const outcome = options?.gateOutcomes?.[label] ?? 'passed';
+          return {
+            gate: label,
+            outcome,
+            reason: outcome === 'passed' ? 'mock verified' : `mock gate outcome: ${outcome}`,
+          };
+        });
+
+      return {
+        task_id: taskId,
+        outcome: 'passed',
+        reason: 'mock verified',
+        completed_at: new Date().toISOString(),
+        exit_code: 0,
+        gate_results: gateResults,
+      };
+    },
+    async getTaskStatus() {
+      return 'completed' as const;
+    },
+  };
+}
+
+describe('fail-closed: no executor wired', () => {
+  let tmpDir: string;
+  let briefPath: string;
+
+  beforeEach(() => {
+    tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'forge-failclosed-'));
+    briefPath = path.join(tmpDir, 'brief.md');
+    fs.writeFileSync(briefPath, '# Fix bug\n\nA bugfix for lint cleanup.');
+  });
+
+  afterEach(() => {
+    fs.rmSync(tmpDir, { recursive: true, force: true });
+  });
+
+  it('throws a typed FORGE_NO_EXECUTOR capability error without --simulate', async () => {
+    await expect(
+      runPipeline(briefPath, tmpDir, {
+        // no executor, no simulate — must fail closed, never run with a stub
+        stages: ['00-intake'],
+      }),
+    ).rejects.toMatchObject({
+      name: 'ForgeCapabilityError',
+      code: 'FORGE_NO_EXECUTOR',
+      capability: 'task-executor',
+    });
+  });
+
+  it('does not create a run directory when failing closed on a missing executor', async () => {
+    try {
+      await runPipeline(briefPath, tmpDir, { stages: ['00-intake'] });
+    } catch {
+      // expected
+    }
+    expect(fs.existsSync(path.join(tmpDir, '.forge', 'runs'))).toBe(false);
+  });
+
+  it('completes with every result typed simulated when simulate is set', async () => {
+    const result = await runPipeline(briefPath, tmpDir, {
+      simulate: true,
+      stages: ['00-intake', '00b-discovery', '02-planning-1', '06-review'],
+    });
+
+    expect(result.manifest.mode).toBe('simulated');
+    expect(result.manifest.status).toBe('simulated');
+
+    for (const stage of result.stages) {
+      const stageStatus = result.manifest.stages[stage];
+      expect(stageStatus?.status, `stage ${stage}`).toBe('simulated');
+      expect(stageStatus?.status, `stage ${stage}`).not.toBe('passed');
+      expect(stageStatus?.reason, `stage ${stage}`).toBeTruthy();
+      for (const gateResult of stageStatus?.gateResults ?? []) {
+        expect(gateResult.outcome, `gate ${gateResult.gate} of ${stage}`).toBe('simulated');
+        expect(gateResult.outcome, `gate ${gateResult.gate} of ${stage}`).not.toBe('passed');
+      }
+    }
+
+    // The persisted manifest agrees.
+    const persisted = loadManifest(result.runDir);
+    expect(persisted.mode).toBe('simulated');
+    expect(persisted.status).toBe('simulated');
+    expect(persisted.stages['02-planning-1']?.status).toBe('simulated');
+  });
+});
+
+describe('fail-closed: typed outcome model', () => {
+  it('only passed satisfies the gate/dependency predicate', () => {
+    expect(isSatisfyingOutcome('passed')).toBe(true);
+    expect(isSatisfyingOutcome('failed')).toBe(false);
+    expect(isSatisfyingOutcome('blocked')).toBe(false);
+    expect(isSatisfyingOutcome('error')).toBe(false);
+    expect(isSatisfyingOutcome('waiting-for-authority')).toBe(false);
+    expect(isSatisfyingOutcome('simulated')).toBe(false);
+    expect(isSatisfyingOutcome('not-applicable')).toBe(false);
+  });
+
+  it('a simulated gate result cannot satisfy the stage gate evaluation', () => {
+    const evaluation = evaluateStageGates('05-coding', STAGE_SPECS['05-coding']!.qualityGates, {
+      task_id: 'FORGE-x-05',
+      outcome: 'passed',
+      reason: 'executor claims success',
+      completed_at: new Date().toISOString(),
+      exit_code: 0,
+      gate_results: [{ gate: 'pnpm lint', outcome: 'simulated', reason: 'simulated gate' }],
+    });
+    expect(isSatisfyingOutcome(evaluation.outcome)).toBe(false);
+    expect(evaluation.outcome).toBe('error');
+  });
+
+  it('a simulated task outcome cannot satisfy evaluation in normal mode', () => {
+    const evaluation = evaluateStageGates('00-intake', [], {
+      task_id: 'FORGE-x-00',
+      outcome: 'simulated',
+      reason: 'executor reported simulated',
+      completed_at: new Date().toISOString(),
+      exit_code: 0,
+      gate_results: [],
+    });
+    expect(isSatisfyingOutcome(evaluation.outcome)).toBe(false);
+  });
+
+  it('a missing gate result blocks the stage instead of passing vacuously', () => {
+    const evaluation = evaluateStageGates('05-coding', STAGE_SPECS['05-coding']!.qualityGates, {
+      task_id: 'FORGE-x-05',
+      outcome: 'passed',
+      reason: 'executor claims success',
+      completed_at: new Date().toISOString(),
+      exit_code: 0,
+      gate_results: [],
+    });
+    expect(evaluation.outcome).toBe('blocked');
+  });
+});
+
+describe('fail-closed: authority and provider gates', () => {
+  let tmpDir: string;
+  let briefPath: string;
+
+  beforeEach(() => {
+    tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'forge-authority-'));
+    briefPath = path.join(tmpDir, 'brief.md');
+    fs.writeFileSync(briefPath, '# Fix bug\n\nA bugfix for lint cleanup.');
+  });
+
+  afterEach(() => {
+    fs.rmSync(tmpDir, { recursive: true, force: true });
+  });
+
+  it.each(['02-planning-1', '03-planning-2', '04-planning-3', '07-remediate'])(
+    'planning/remediation stage %s yields waiting-for-authority (not passed) in normal mode',
+    async (stage) => {
+      const executor = createTypedExecutor();
+      let runDir: string | undefined;
+
+      try {
+        await runPipeline(briefPath, tmpDir, {
+          executor,
+          stages: [stage as string],
+        });
+        expect.unreachable('runPipeline should have failed closed');
+      } catch (err) {
+        expect(err).toBeInstanceOf(ForgeCapabilityError);
+        expect((err as ForgeCapabilityError).code).toBe('FORGE_AUTHORITY_REQUIRED');
+        runDir = path.join(tmpDir, '.forge', 'runs');
+      }
+
+      const runIds = fs.readdirSync(runDir!);
+      expect(runIds).toHaveLength(1);
+      const manifest = loadManifest(path.join(runDir!, runIds[0]!));
+      expect(manifest.stages[stage]?.status).toBe('waiting-for-authority');
+      expect(manifest.stages[stage]?.status).not.toBe('passed');
+      expect(manifest.status).toBe('waiting-for-authority');
+    },
+  );
+
+  it('review stage fails closed with a typed FORGE_NO_REVIEWER error in normal mode', async () => {
+    const executor = createTypedExecutor();
+
+    try {
+      await runPipeline(briefPath, tmpDir, {
+        executor,
+        stages: ['06-review'],
+      });
+      expect.unreachable('runPipeline should have failed closed');
+    } catch (err) {
+      expect(err).toBeInstanceOf(ForgeCapabilityError);
+      expect((err as ForgeCapabilityError).code).toBe('FORGE_NO_REVIEWER');
+      expect((err as ForgeCapabilityError).capability).toBe('reviewer');
+    }
+
+    const runsDir = path.join(tmpDir, '.forge', 'runs');
+    const runIds = fs.readdirSync(runsDir);
+    const manifest = loadManifest(path.join(runsDir, runIds[0]!));
+    expect(manifest.stages['06-review']?.status).toBe('blocked');
+    expect(manifest.stages['06-review']?.status).not.toBe('passed');
+    expect(manifest.status).toBe('failed');
+  });
+
+  it('review stage produces simulated results under --simulate', async () => {
+    const result = await runPipeline(briefPath, tmpDir, {
+      simulate: true,
+      stages: ['06-review'],
+    });
+
+    expect(result.manifest.mode).toBe('simulated');
+    expect(result.manifest.stages['06-review']?.status).toBe('simulated');
+    for (const gateResult of result.manifest.stages['06-review']?.gateResults ?? []) {
+      expect(gateResult.outcome).toBe('simulated');
+    }
+  });
+
+  it('deploy stage fails closed without a wired ci-pipeline provider in normal mode', async () => {
+    const executor = createTypedExecutor();
+
+    await expect(
+      runPipeline(briefPath, tmpDir, {
+        executor,
+        stages: ['09-deploy'],
+      }),
+    ).rejects.toMatchObject({
+      name: 'ForgeCapabilityError',
+      code: 'FORGE_NO_CI_PIPELINE',
+    });
+  });
+});
+
+describe('fail-closed: no vacuous gate commands remain', () => {
+  it('stage constants contain no echo/synthetic-approval, vacuous true, or empty gate commands', () => {
+    for (const [stageName, spec] of Object.entries(STAGE_SPECS)) {
+      for (const gate of spec.qualityGates) {
+        const serialized = JSON.stringify(gate);
+        // The echo-review synthetic approval must be gone.
+        expect(serialized, `stage ${stageName} gate ${serialized}`).not.toContain('echo');
+        expect(serialized, `stage ${stageName} gate ${serialized}`).not.toMatch(/"verdict"\s*:/);
+        expect(serialized, `stage ${stageName} gate ${serialized}`).not.toMatch(
+          /"summary"\s*:\s*"review-pass"/,
+        );
+        // No vacuous literal `true` gate.
+        expect(gate, `stage ${stageName}`).not.toBe('true');
+        // Command gates must carry a real, non-empty command.
+        if (isCommandGate(gate)) {
+          const command = typeof gate === 'string' ? gate : gate.command;
+          expect(command.trim().length, `stage ${stageName} gate ${serialized}`).toBeGreaterThan(0);
+        }
+      }
+    }
+  });
+
+  it('board tasks contain no vacuous true gates', () => {
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'forge-board-gates-'));
+    try {
+      const tasks = generateBoardTasks('# Brief', [], tmpDir, 'BOARD-TEST');
+      for (const task of tasks) {
+        for (const gate of task.qualityGates) {
+          expect(gate, `task ${task.id}`).not.toBe('true');
+          const serialized = JSON.stringify(gate);
+          expect(serialized, `task ${task.id} gate ${serialized}`).not.toContain('echo');
+        }
+      }
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true });
+    }
+  });
+});

packages/forge/__tests__/pipeline-runner.test.ts

@@ -12,10 +12,10 @@ import {
   resumePipeline,
   getPipelineStatus,
 } from '../src/pipeline-runner.js';
-import type { ForgeTask, RunManifest, TaskExecutor } from '../src/types.js';
-import type { TaskResult } from '@mosaicstack/macp';
+import type { ForgeTask, ForgeTaskResult, RunManifest, TaskExecutor } from '../src/types.js';
+import { gateLabel, isCommandGate } from '../src/outcomes.js';
 
-/** Mock TaskExecutor that records submitted tasks and returns success. */
+/** Mock TaskExecutor that records submitted tasks and returns typed results. */
 function createMockExecutor(options?: {
   failStage?: string;
 }): TaskExecutor & { submittedTasks: ForgeTask[] } {
@@ -25,7 +25,7 @@ function createMockExecutor(options?: {
     async submitTask(task: ForgeTask) {
       submittedTasks.push(task);
     },
-    async waitForCompletion(taskId: string): Promise<TaskResult> {
+    async waitForCompletion(taskId: string): Promise<ForgeTaskResult> {
       const failStage = options?.failStage;
       const task = submittedTasks.find((t) => t.id === taskId);
       const stageName = task?.metadata?.['stageName'] as string | undefined;
@@ -33,7 +33,8 @@ function createMockExecutor(options?: {
       if (failStage && stageName === failStage) {
         return {
           task_id: taskId,
-          status: 'failed',
+          outcome: 'failed',
+          reason: 'mock task failure',
           completed_at: new Date().toISOString(),
           exit_code: 1,
           gate_results: [],
@@ -41,10 +42,17 @@ function createMockExecutor(options?: {
       }
       return {
         task_id: taskId,
-        status: 'completed',
+        outcome: 'passed',
+        reason: 'mock verified',
         completed_at: new Date().toISOString(),
         exit_code: 0,
-        gate_results: [],
+        gate_results: (task?.qualityGates ?? [])
+          .filter((gate) => isCommandGate(gate))
+          .map((gate) => ({
+            gate: gateLabel(gate),
+            outcome: 'passed' as const,
+            reason: 'mock verified',
+          })),
       };
     },
     async getTaskStatus() {
@@ -156,12 +164,13 @@ describe('runPipeline', () => {
     const executor = createMockExecutor();
     const result = await runPipeline(briefPath, tmpDir, {
       executor,
-      stages: ['00-intake', '00b-discovery'],
+      stages: ['00-intake', '05-coding'],
     });
 
     expect(result.runId).toMatch(/^\d{8}-\d{6}$/);
-    expect(result.stages).toEqual(['00-intake', '00b-discovery']);
+    expect(result.stages).toEqual(['00-intake', '05-coding']);
     expect(result.manifest.status).toBe('completed');
+    expect(result.manifest.mode).toBe('normal');
     expect(executor.submittedTasks).toHaveLength(2);
   });
 
@@ -180,12 +189,17 @@ describe('runPipeline', () => {
     const executor = createMockExecutor();
     const result = await runPipeline(briefPath, tmpDir, {
       executor,
-      stages: ['00-intake', '00b-discovery'],
+      stages: ['00-intake', '05-coding'],
     });
 
     const manifest = loadManifest(result.runDir);
     expect(manifest.stages['00-intake']?.status).toBe('passed');
-    expect(manifest.stages['00b-discovery']?.status).toBe('passed');
+    expect(manifest.stages['05-coding']?.status).toBe('passed');
+    expect(manifest.stages['05-coding']?.gateResults?.map((g) => g.outcome)).toEqual([
+      'passed',
+      'passed',
+      'passed',
+    ]);
   });
 
   it('respects CLI class override', async () => {
@@ -215,7 +229,7 @@ describe('runPipeline', () => {
     const executor = createMockExecutor();
     await runPipeline(briefPath, tmpDir, {
       executor,
-      stages: ['00-intake', '00b-discovery', '02-planning-1'],
+      stages: ['00-intake', '05-coding', '08-test'],
     });
 
     expect(executor.submittedTasks[0]!.dependsOn).toBeUndefined();
@@ -224,14 +238,14 @@ describe('runPipeline', () => {
   });
 
   it('handles stage failure', async () => {
-    const executor = createMockExecutor({ failStage: '00b-discovery' });
+    const executor = createMockExecutor({ failStage: '05-coding' });
 
     await expect(
       runPipeline(briefPath, tmpDir, {
         executor,
-        stages: ['00-intake', '00b-discovery'],
+        stages: ['00-intake', '05-coding'],
       }),
-    ).rejects.toThrow('Stage 00b-discovery failed');
+    ).rejects.toThrow('Stage 05-coding failed');
   });
 
   it('marks manifest as failed on stage failure', async () => {
@@ -270,30 +284,143 @@ describe('resumePipeline', () => {
     fs.rmSync(tmpDir, { recursive: true, force: true });
   });
 
-  it('resumes from first incomplete stage', async () => {
-    // First run fails on discovery
-    const executor1 = createMockExecutor({ failStage: '00b-discovery' });
-    let runDir: string;
+  it('resumes from first incomplete stage and fails closed at the next provider gate', async () => {
+    // Simulate a run whose authority stages were approved out-of-band
+    // (recorded as passed) and whose coding stage failed mechanically.
+    const runId = '20260101-000000';
+    const runDir = path.join(tmpDir, '.forge', 'runs', runId);
+    fs.mkdirSync(runDir, { recursive: true });
+    const passed = { status: 'passed' as const, startedAt: '2026-01-01T00:00:00Z' };
+    saveManifest(runDir, {
+      runId,
+      brief: briefPath,
+      codebase: tmpDir,
+      briefClass: 'hotfix',
+      classSource: 'frontmatter',
+      forceBoard: false,
+      mode: 'normal',
+      createdAt: '2026-01-01T00:00:00Z',
+      updatedAt: '2026-01-01T00:00:00Z',
+      currentStage: '05-coding',
+      status: 'failed',
+      stages: {
+        '00-intake': passed,
+        '00b-discovery': passed,
+        '02-planning-1': passed,
+        '03-planning-2': passed,
+        '04-planning-3': passed,
+        '05-coding': { status: 'failed', reason: 'gate failed' },
+      },
+    });
 
-    try {
-      await runPipeline(briefPath, tmpDir, {
-        executor: executor1,
-        stages: ['00-intake', '00b-discovery', '02-planning-1'],
-      });
-    } catch {
-      // expected
+    // Resume re-runs 05-coding (the first non-passed stage), then fails
+    // closed at 06-review because no reviewer provider is wired.
+    const executor = createMockExecutor();
+    await expect(resumePipeline(runDir, executor)).rejects.toMatchObject({
+      name: 'ForgeCapabilityError',
+      code: 'FORGE_NO_REVIEWER',
+    });
+
+    const manifest = loadManifest(runDir);
+    expect(manifest.stages['05-coding']?.status).toBe('passed');
+    expect(manifest.stages['06-review']?.status).toBe('blocked');
+    expect(manifest.status).toBe('failed');
+  });
+
+  it('resumes to completion as simulated under explicit simulate', async () => {
+    const runId = '20260101-000003';
+    const runDir = path.join(tmpDir, '.forge', 'runs', runId);
+    fs.mkdirSync(runDir, { recursive: true });
+    const passed = { status: 'passed' as const, startedAt: '2026-01-01T00:00:00Z' };
+    saveManifest(runDir, {
+      runId,
+      brief: briefPath,
+      codebase: tmpDir,
+      briefClass: 'hotfix',
+      classSource: 'frontmatter',
+      forceBoard: false,
+      mode: 'normal',
+      createdAt: '2026-01-01T00:00:00Z',
+      updatedAt: '2026-01-01T00:00:00Z',
+      currentStage: '05-coding',
+      status: 'failed',
+      stages: {
+        '00-intake': passed,
+        '00b-discovery': passed,
+        '02-planning-1': passed,
+        '03-planning-2': passed,
+        '04-planning-3': passed,
+        '05-coding': { status: 'failed', reason: 'gate failed' },
+      },
+    });
+
+    const result = await resumePipeline(runDir, undefined, { simulate: true });
+
+    expect(result.manifest.status).toBe('simulated');
+    expect(result.manifest.mode).toBe('simulated');
+    expect(result.stages[0]).toBe('05-coding');
+    for (const stage of result.stages) {
+      expect(result.manifest.stages[stage]?.status).toBe('simulated');
     }
+  });
 
-    const runsDir = path.join(tmpDir, '.forge', 'runs');
-    runDir = path.join(runsDir, fs.readdirSync(runsDir)[0]!);
+  it('fails closed on resume when the next stage needs authority sign-off', async () => {
+    const runId = '20260101-000001';
+    const runDir = path.join(tmpDir, '.forge', 'runs', runId);
+    fs.mkdirSync(runDir, { recursive: true });
+    saveManifest(runDir, {
+      runId,
+      brief: briefPath,
+      codebase: tmpDir,
+      briefClass: 'hotfix',
+      classSource: 'frontmatter',
+      forceBoard: false,
+      mode: 'normal',
+      createdAt: '2026-01-01T00:00:00Z',
+      updatedAt: '2026-01-01T00:00:00Z',
+      currentStage: '00-intake',
+      status: 'in_progress',
+      stages: {
+        '00-intake': { status: 'passed' },
+      },
+    });
 
-    // Resume should pick up from 00b-discovery
-    const executor2 = createMockExecutor();
-    const result = await resumePipeline(runDir, executor2);
+    const executor = createMockExecutor();
+    await expect(resumePipeline(runDir, executor)).rejects.toMatchObject({
+      name: 'ForgeCapabilityError',
+      code: 'FORGE_AUTHORITY_REQUIRED',
+    });
 
-    expect(result.manifest.status).toBe('completed');
-    // Should have re-run from 00b-discovery onward
-    expect(result.stages[0]).toBe('00b-discovery');
+    const manifest = loadManifest(runDir);
+    expect(manifest.stages['00b-discovery']?.status).toBe('waiting-for-authority');
+    expect(manifest.status).toBe('waiting-for-authority');
+  });
+
+  it('fails closed on resume without an executor or --simulate', async () => {
+    const runId = '20260101-000002';
+    const runDir = path.join(tmpDir, '.forge', 'runs', runId);
+    fs.mkdirSync(runDir, { recursive: true });
+    saveManifest(runDir, {
+      runId,
+      brief: briefPath,
+      codebase: tmpDir,
+      briefClass: 'hotfix',
+      classSource: 'frontmatter',
+      forceBoard: false,
+      mode: 'normal',
+      createdAt: '2026-01-01T00:00:00Z',
+      updatedAt: '2026-01-01T00:00:00Z',
+      currentStage: '00-intake',
+      status: 'in_progress',
+      stages: {
+        '00-intake': { status: 'passed' },
+      },
+    });
+
+    await expect(resumePipeline(runDir)).rejects.toMatchObject({
+      name: 'ForgeCapabilityError',
+      code: 'FORGE_NO_EXECUTOR',
+    });
   });
 });
 

packages/forge/src/board-tasks.ts

@@ -95,7 +95,14 @@ export function generateBoardTasks(
       briefPath,
       resultPath: resultRelPath,
       timeoutSeconds: 120,
-      qualityGates: ['true'],
+      qualityGates: [
+        {
+          kind: 'authority',
+          capability: 'board-approval',
+          reason:
+            'persona evaluation is judged by board synthesis (authority review); no mechanical gate exists',
+        },
+      ],
       metadata: {
         personaName: persona.name,
         personaSlug: persona.slug,
@@ -121,7 +128,13 @@ export function generateBoardTasks(
     timeoutSeconds: 120,
     dependsOn: personaTaskIds,
     dependsOnPolicy: 'all_terminal',
-    qualityGates: ['true'],
+    qualityGates: [
+      {
+        kind: 'authority',
+        capability: 'board-approval',
+        reason: 'board synthesis is an authority decision; no mechanical gate exists',
+      },
+    ],
     metadata: {
       resultOutputPath: synthesisResult,
       inputResultPaths: personaResultPaths,

packages/forge/src/cli.spec.ts

@@ -1,7 +1,11 @@
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
 import { Command } from 'commander';
-import { describe, expect, it } from 'vitest';
+import { describe, expect, it, vi, beforeEach, afterEach } from 'vitest';
 
 import { registerForgeCommand } from './cli.js';
+import { loadManifest } from './pipeline-runner.js';
 
 describe('registerForgeCommand', () => {
   it('registers a "forge" command on the parent program', () => {
@@ -55,3 +59,94 @@ describe('registerForgeCommand', () => {
     }).not.toThrow();
   });
 });
+
+describe('forge run fail-closed behavior (SDLC-D-035)', () => {
+  let tmpDir: string;
+  let briefPath: string;
+  let errSpy: ReturnType<typeof vi.spyOn>;
+  let logSpy: ReturnType<typeof vi.spyOn>;
+  let prevExitCode: string | number | null | undefined;
+
+  const parse = (args: string[]) => {
+    const program = new Command();
+    registerForgeCommand(program);
+    return program.parseAsync(['forge', ...args], { from: 'user' });
+  };
+
+  beforeEach(() => {
+    tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'forge-cli-failclosed-'));
+    briefPath = path.join(tmpDir, 'brief.md');
+    fs.writeFileSync(briefPath, '# Fix bug\n\nA bugfix for lint cleanup.');
+    errSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+    logSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+    prevExitCode = process.exitCode;
+  });
+
+  afterEach(() => {
+    errSpy.mockRestore();
+    logSpy.mockRestore();
+    process.exitCode = prevExitCode;
+    fs.rmSync(tmpDir, { recursive: true, force: true });
+  });
+
+  it('exits nonzero with a typed FORGE_NO_EXECUTOR error when no executor is wired and --simulate is absent', async () => {
+    await parse(['run', '--brief', briefPath, '--codebase', tmpDir]);
+
+    expect(process.exitCode).toBe(1);
+    const errText = errSpy.mock.calls.map((c) => c.join(' ')).join('\n');
+    expect(errText).toContain('FORGE_NO_EXECUTOR');
+    // It must never run the pipeline with a stub and report success.
+    expect(fs.existsSync(path.join(tmpDir, '.forge', 'runs'))).toBe(false);
+  });
+
+  it('completes with typed simulated results and exit 0 under explicit --simulate', async () => {
+    await parse(['run', '--brief', briefPath, '--codebase', tmpDir, '--simulate']);
+
+    expect(process.exitCode).toBeUndefined();
+
+    // Loud simulated-mode summary.
+    const logText = logSpy.mock.calls.map((c) => c.join(' ')).join('\n');
+    expect(logText).toContain('SIMULATED');
+
+    // Manifest records the mode and simulated per-result statuses.
+    const runsDir = path.join(tmpDir, '.forge', 'runs');
+    const runIds = fs.readdirSync(runsDir);
+    expect(runIds).toHaveLength(1);
+    const manifest = loadManifest(path.join(runsDir, runIds[0]!));
+    expect(manifest.mode).toBe('simulated');
+    expect(manifest.status).toBe('simulated');
+    for (const stageStatus of Object.values(manifest.stages)) {
+      expect(stageStatus?.status).toBe('simulated');
+      for (const gateResult of stageStatus?.gateResults ?? []) {
+        expect(gateResult.outcome).toBe('simulated');
+      }
+    }
+  });
+
+  it('resume exits nonzero with a typed FORGE_NO_EXECUTOR error without --simulate', async () => {
+    const runDir = path.join(tmpDir, '.forge', 'runs', '20260101-000000');
+    fs.mkdirSync(runDir, { recursive: true });
+    fs.writeFileSync(
+      path.join(runDir, 'manifest.json'),
+      JSON.stringify({
+        runId: '20260101-000000',
+        brief: briefPath,
+        codebase: tmpDir,
+        briefClass: 'hotfix',
+        classSource: 'frontmatter',
+        forceBoard: false,
+        createdAt: '2026-01-01T00:00:00Z',
+        updatedAt: '2026-01-01T00:00:00Z',
+        currentStage: '00-intake',
+        status: 'in_progress',
+        stages: { '00-intake': { status: 'passed' } },
+      }),
+    );
+
+    await parse(['resume', '20260101-000000', '--project', tmpDir]);
+
+    expect(process.exitCode).toBe(1);
+    const errText = errSpy.mock.calls.map((c) => c.join(' ')).join('\n');
+    expect(errText).toContain('FORGE_NO_EXECUTOR');
+  });
+});

packages/forge/src/cli.ts

@@ -5,37 +5,47 @@ import type { Command } from 'commander';
 
 import { classifyBrief } from './brief-classifier.js';
 import { STAGE_LABELS, STAGE_SEQUENCE } from './constants.js';
+import { ForgeCapabilityError } from './errors.js';
 import { getEffectivePersonas, loadBoardPersonas } from './persona-loader.js';
 import { generateRunId, getPipelineStatus, loadManifest, runPipeline } from './pipeline-runner.js';
-import type { PipelineOptions, RunManifest, TaskExecutor } from './types.js';
-
-// ---------------------------------------------------------------------------
-// Stub executor — used when no real executor is wired at CLI invocation time.
-// ---------------------------------------------------------------------------
-
-const stubExecutor: TaskExecutor = {
-  async submitTask(task) {
-    console.log(`  [forge] stage submitted: ${task.id} (${task.title})`);
-  },
-  async waitForCompletion(taskId, _timeoutMs) {
-    console.log(`  [forge] stage complete:  ${taskId}`);
-    return {
-      task_id: taskId,
-      status: 'completed' as const,
-      completed_at: new Date().toISOString(),
-      exit_code: 0,
-      gate_results: [],
-    };
-  },
-  async getTaskStatus(_taskId) {
-    return 'completed' as const;
-  },
-};
+import { createSimulatedExecutor } from './simulated-executor.js';
+import type { PipelineOptions, RunManifest, RunMode } from './types.js';
 
 // ---------------------------------------------------------------------------
 // Helpers
 // ---------------------------------------------------------------------------
 
+/** Resolve a run's effective mode, defaulting legacy manifests to normal. */
+function runModeOf(manifest: RunManifest): RunMode {
+  return manifest.mode ?? 'normal';
+}
+
+/** Print a loud banner so a simulated run can never be misread as verified. */
+function printSimulatedBanner(): void {
+  console.log('');
+  console.log('[forge] ===============================================================');
+  console.log('[forge] MODE: SIMULATED — no stage or gate was really executed.');
+  console.log('[forge] All results are synthetic and MUST NOT be read as verified');
+  console.log('[forge] success. Wire a real executor/providers and re-run to verify.');
+  console.log('[forge] ===============================================================');
+}
+
+/** Print a typed error line for fail-closed capability errors. */
+function printCapabilityError(err: ForgeCapabilityError): void {
+  console.error(`[forge] error ${err.code}: ${err.message}`);
+  console.error(`[forge] missing capability: ${err.capability}`);
+}
+
+/** Handle a pipeline error uniformly: typed capability errors get their code. */
+function handlePipelineError(err: unknown): void {
+  if (err instanceof ForgeCapabilityError) {
+    printCapabilityError(err);
+  } else {
+    console.error(`[forge] pipeline failed: ${err instanceof Error ? err.message : String(err)}`);
+  }
+  process.exitCode = 1;
+}
+
 function formatDuration(startedAt?: string, completedAt?: string): string {
   if (!startedAt || !completedAt) return '-';
   const ms = new Date(completedAt).getTime() - new Date(startedAt).getTime();
@@ -44,19 +54,24 @@ function formatDuration(startedAt?: string, completedAt?: string): string {
 }
 
 function printManifestTable(manifest: RunManifest): void {
+  const mode = runModeOf(manifest);
   console.log(`\nRun ID : ${manifest.runId}`);
   console.log(`Status : ${manifest.status}`);
+  console.log(`Mode   : ${mode}`);
+  if (mode === 'simulated') {
+    console.log('WARNING: SIMULATED RUN — results are synthetic, not verified success.');
+  }
   console.log(`Brief  : ${manifest.brief}`);
   console.log(`Class  : ${manifest.briefClass} (${manifest.classSource})`);
   console.log(`Updated: ${manifest.updatedAt}`);
   console.log('');
-  console.log('Stage'.padEnd(22) + 'Status'.padEnd(14) + 'Duration');
-  console.log('-'.repeat(50));
+  console.log('Stage'.padEnd(22) + 'Status'.padEnd(24) + 'Duration');
+  console.log('-'.repeat(60));
   for (const stage of STAGE_SEQUENCE) {
     const s = manifest.stages[stage];
     if (!s) continue;
     const label = (STAGE_LABELS[stage] ?? stage).padEnd(22);
-    const status = s.status.padEnd(14);
+    const status = s.status.padEnd(24);
     const dur = formatDuration(s.startedAt, s.completedAt);
     console.log(`${label}${status}${dur}`);
   }
@@ -90,23 +105,58 @@ function listRecentRuns(projectRoot?: string): void {
   }
 
   console.log('\nRecent runs:');
-  console.log('Run ID'.padEnd(22) + 'Status'.padEnd(14) + 'Brief');
-  console.log('-'.repeat(70));
+  console.log('Run ID'.padEnd(22) + 'Status'.padEnd(24) + 'Mode'.padEnd(12) + 'Brief');
+  console.log('-'.repeat(80));
 
   for (const runId of entries) {
     const runDir = path.join(runsDir, runId);
     try {
       const manifest = loadManifest(runDir);
-      const status = manifest.status.padEnd(14);
+      const status = manifest.status.padEnd(24);
+      const mode = runModeOf(manifest).padEnd(12);
       const brief = path.basename(manifest.brief);
-      console.log(`${runId.padEnd(22)}${status}${brief}`);
+      console.log(`${runId.padEnd(22)}${status}${mode}${brief}`);
     } catch {
-      console.log(`${runId.padEnd(22)}${'(unreadable)'.padEnd(14)}`);
+      console.log(`${runId.padEnd(22)}${'(unreadable)'.padEnd(24)}`);
     }
   }
   console.log('');
 }
 
+/**
+ * Apply the exit-code policy for a finished pipeline run (SDLC-D-035):
+ *
+ * - exit 0 only for a verified `completed` normal run, or for an overall
+ *   `simulated` run when the caller explicitly passed --simulate;
+ * - anything else exits nonzero so it can never be read as success.
+ */
+function applyRunExitPolicy(result: { manifest: RunManifest; runDir: string }, simulate: boolean) {
+  const { manifest } = result;
+
+  if (runModeOf(manifest) === 'simulated') {
+    if (!simulate || manifest.status !== 'simulated') {
+      console.error(
+        '[forge] error FORGE_MODE_MISMATCH: run reports simulated results without an explicit, ' +
+          'consistent --simulate request; refusing to report success.',
+      );
+      process.exitCode = 1;
+      return;
+    }
+    printSimulatedBanner();
+    console.log(`[forge] run directory: ${result.runDir}`);
+    return; // exit 0 — the caller explicitly opted into simulation
+  }
+
+  if (manifest.status !== 'completed') {
+    console.error(`[forge] run did not complete: terminal status '${manifest.status}'`);
+    process.exitCode = 1;
+    return;
+  }
+
+  console.log(`[forge] pipeline complete (mode: normal): ${manifest.runId}`);
+  console.log(`[forge] run directory: ${result.runDir}`);
+}
+
 // ---------------------------------------------------------------------------
 // Register function
 // ---------------------------------------------------------------------------
@@ -129,6 +179,11 @@ export function registerForgeCommand(parent: Command): void {
     .option('--config <path>', 'Path to forge config file (.forge/config.yaml)')
     .option('--codebase <path>', 'Codebase root to pass to the pipeline', process.cwd())
     .option('--dry-run', 'Print planned stages without executing', false)
+    .option(
+      '--simulate',
+      'Simulate execution without real providers (every result is typed simulated, never verified)',
+      false,
+    )
     .action(
       async (opts: {
         brief: string;
@@ -137,6 +192,7 @@ export function registerForgeCommand(parent: Command): void {
         config?: string;
         codebase: string;
         dryRun: boolean;
+        simulate: boolean;
       }) => {
         const briefPath = path.resolve(opts.brief);
 
@@ -149,14 +205,22 @@ export function registerForgeCommand(parent: Command): void {
         const briefContent = fs.readFileSync(briefPath, 'utf-8');
         const briefClass = classifyBrief(briefContent);
         const projectRoot = opts.codebase;
+        // A real executor is never wired at CLI invocation time today, so the
+        // only executor we may construct is the explicitly-requested simulated
+        // one. Normal mode fails closed with FORGE_NO_EXECUTOR.
+        const executor = opts.simulate ? createSimulatedExecutor() : undefined;
 
         if (opts.resume) {
           const runId = opts.runId ?? generateRunId();
           const runDir = resolveRunDir(runId, projectRoot);
           console.log(`[forge] resuming run: ${runId}`);
-          const { resumePipeline } = await import('./pipeline-runner.js');
-          const result = await resumePipeline(runDir, stubExecutor);
-          console.log(`[forge] pipeline complete: ${result.runId}`);
+          try {
+            const { resumePipeline } = await import('./pipeline-runner.js');
+            const result = await resumePipeline(runDir, executor, { simulate: opts.simulate });
+            applyRunExitPolicy(result, opts.simulate);
+          } catch (err) {
+            handlePipelineError(err);
+          }
           return;
         }
 
@@ -164,7 +228,8 @@ export function registerForgeCommand(parent: Command): void {
           briefClass,
           codebase: projectRoot,
           dryRun: opts.dryRun,
-          executor: stubExecutor,
+          executor,
+          simulate: opts.simulate,
         };
 
         if (opts.dryRun) {
@@ -180,16 +245,15 @@ export function registerForgeCommand(parent: Command): void {
 
         console.log(`[forge] starting pipeline for brief: ${briefPath}`);
         console.log(`[forge] classified as: ${briefClass}`);
+        if (opts.simulate) {
+          console.log('[forge] mode: SIMULATED (explicit --simulate)');
+        }
 
         try {
           const result = await runPipeline(briefPath, projectRoot, pipelineOptions);
-          console.log(`[forge] pipeline complete: ${result.runId}`);
-          console.log(`[forge] run directory: ${result.runDir}`);
+          applyRunExitPolicy(result, opts.simulate);
         } catch (err) {
-          console.error(
-            `[forge] pipeline failed: ${err instanceof Error ? err.message : String(err)}`,
-          );
-          process.exitCode = 1;
+          handlePipelineError(err);
         }
       },
     );
@@ -224,7 +288,12 @@ export function registerForgeCommand(parent: Command): void {
     .command('resume <runId>')
     .description('Resume a stopped or failed pipeline run')
     .option('--project <path>', 'Project root (defaults to cwd)', process.cwd())
-    .action(async (runId: string, opts: { project: string }) => {
+    .option(
+      '--simulate',
+      'Simulate execution without real providers (every result is typed simulated, never verified)',
+      false,
+    )
+    .action(async (runId: string, opts: { project: string; simulate: boolean }) => {
       const runDir = resolveRunDir(runId, opts.project);
 
       if (!fs.existsSync(runDir)) {
@@ -234,15 +303,20 @@ export function registerForgeCommand(parent: Command): void {
       }
 
       console.log(`[forge] resuming run: ${runId}`);
+      if (opts.simulate) {
+        console.log('[forge] mode: SIMULATED (explicit --simulate)');
+      }
+
+      // No real executor is wired at CLI invocation time; only the explicitly
+      // requested simulated executor may be constructed (fail closed otherwise).
+      const executor = opts.simulate ? createSimulatedExecutor() : undefined;
 
       try {
         const { resumePipeline } = await import('./pipeline-runner.js');
-        const result = await resumePipeline(runDir, stubExecutor);
-        console.log(`[forge] pipeline complete: ${result.runId}`);
-        console.log(`[forge] run directory: ${result.runDir}`);
+        const result = await resumePipeline(runDir, executor, { simulate: opts.simulate });
+        applyRunExitPolicy(result, opts.simulate);
       } catch (err) {
-        console.error(`[forge] resume failed: ${err instanceof Error ? err.message : String(err)}`);
-        process.exitCode = 1;
+        handlePipelineError(err);
       }
     });
 

packages/forge/src/constants.ts

@@ -9,7 +9,16 @@ export const PACKAGE_ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.
 /** Pipeline asset directory (stages, agents, rails, gates, templates). */
 export const PIPELINE_DIR = path.join(PACKAGE_ROOT, 'pipeline');
 
-/** Stage specifications — defines every pipeline stage. */
+/** Stage specifications — defines every pipeline stage.
+ *\n * Gate semantics (SDLC-D-035): every gate is one of
+ * - a real command string / GateEntry a mechanical runner can execute,
+ * - an `authority` gate (human/board sign-off; produces waiting-for-authority),
+ * - a `provider` gate (requires a wired provider such as a reviewer or CI pipeline).
+ *
+ * Vacuous gates (`true`, echo'd synthetic approvals, placeholder ci-pipeline
+ * commands) are forbidden: a stage whose gate has no real implementation
+ * fails closed instead of passing.
+ */
 export const STAGE_SPECS: Record<string, StageSpec> = {
   '00-intake': {
     number: '00',
@@ -27,7 +36,13 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     type: 'research',
     gate: 'discovery-complete',
     promptFile: '00b-discovery.md',
-    qualityGates: ['true'],
+    qualityGates: [
+      {
+        kind: 'authority',
+        capability: 'discovery-complete',
+        reason: 'discovery completion is attested by an authority; no mechanical check exists',
+      },
+    ],
   },
   '01-board': {
     number: '01',
@@ -36,7 +51,13 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     type: 'review',
     gate: 'board-approval',
     promptFile: '01-board.md',
-    qualityGates: [{ type: 'ci-pipeline', command: 'board-approval (via board-tasks)' }],
+    qualityGates: [
+      {
+        kind: 'authority',
+        capability: 'board-approval',
+        reason: 'board approval is a board/human decision; no mechanical gate exists',
+      },
+    ],
   },
   '01b-brief-analyzer': {
     number: '01b',
@@ -45,7 +66,13 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     type: 'research',
     gate: 'brief-analysis-complete',
     promptFile: '01-board.md',
-    qualityGates: ['true'],
+    qualityGates: [
+      {
+        kind: 'authority',
+        capability: 'brief-analysis-complete',
+        reason: 'brief analysis completion is attested by an authority; no mechanical check exists',
+      },
+    ],
   },
   '02-planning-1': {
     number: '02',
@@ -54,7 +81,13 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     type: 'research',
     gate: 'architecture-approval',
     promptFile: '02-planning-1-architecture.md',
-    qualityGates: ['true'],
+    qualityGates: [
+      {
+        kind: 'authority',
+        capability: 'architecture-approval',
+        reason: 'ADR approval requires authority sign-off; no mechanical check exists',
+      },
+    ],
   },
   '03-planning-2': {
     number: '03',
@@ -63,7 +96,14 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     type: 'research',
     gate: 'implementation-approval',
     promptFile: '03-planning-2-implementation.md',
-    qualityGates: ['true'],
+    qualityGates: [
+      {
+        kind: 'authority',
+        capability: 'implementation-approval',
+        reason:
+          'implementation spec approval requires authority sign-off; no mechanical check exists',
+      },
+    ],
   },
   '04-planning-3': {
     number: '04',
@@ -72,7 +112,14 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     type: 'research',
     gate: 'decomposition-approval',
     promptFile: '04-planning-3-decomposition.md',
-    qualityGates: ['true'],
+    qualityGates: [
+      {
+        kind: 'authority',
+        capability: 'decomposition-approval',
+        reason:
+          'task decomposition approval requires authority sign-off; no mechanical check exists',
+      },
+    ],
   },
   '05-coding': {
     number: '05',
@@ -92,9 +139,10 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     promptFile: '06-review.md',
     qualityGates: [
       {
-        type: 'ai-review',
-        command:
-          'echo \'{"summary":"review-pass","verdict":"approve","findings":[],"stats":{"blockers":0,"should_fix":0,"suggestions":0}}\'',
+        kind: 'provider',
+        capability: 'reviewer',
+        reason:
+          'review verdicts require a wired reviewer provider; synthetic approvals are not permitted',
       },
     ],
   },
@@ -105,7 +153,13 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     type: 'coding',
     gate: 're-review',
     promptFile: '07-remediate.md',
-    qualityGates: ['true'],
+    qualityGates: [
+      {
+        kind: 'authority',
+        capability: 're-review',
+        reason: 'remediation re-review is an approval-based gate; no mechanical check exists',
+      },
+    ],
   },
   '08-test': {
     number: '08',
@@ -123,7 +177,13 @@ export const STAGE_SPECS: Record<string, StageSpec> = {
     type: 'deploy',
     gate: 'deploy-verification',
     promptFile: '09-deploy.md',
-    qualityGates: [{ type: 'ci-pipeline', command: 'deploy-verification' }],
+    qualityGates: [
+      {
+        kind: 'provider',
+        capability: 'ci-pipeline',
+        reason: 'deploy verification requires a wired CI pipeline provider',
+      },
+    ],
   },
 };
 

packages/forge/src/errors.ts

@@ -0,0 +1,46 @@
+/**
+ * Typed fail-closed capability errors (SDLC-D-035).
+ *
+ * A Forge run must fail closed when a required capability (executor, reviewer
+ * provider, CI pipeline, authority sign-off) is missing. These typed errors
+ * name the missing capability so callers can distinguish "not wired" from
+ * ordinary execution failures.
+ */
+
+/** Closed set of typed Forge capability error codes. */
+export const FORGE_ERROR_CODES = [
+  'FORGE_NO_EXECUTOR',
+  'FORGE_NO_REVIEWER',
+  'FORGE_NO_CI_PIPELINE',
+  'FORGE_NO_PROVIDER',
+  'FORGE_AUTHORITY_REQUIRED',
+] as const;
+
+export type ForgeErrorCode = (typeof FORGE_ERROR_CODES)[number];
+
+/** Raised when a required capability is missing and the pipeline must fail closed. */
+export class ForgeCapabilityError extends Error {
+  /** Typed error code from the closed FORGE_ERROR_CODES set. */
+  readonly code: ForgeErrorCode;
+  /** The missing capability, e.g. `task-executor`, `reviewer`, `board-approval`. */
+  readonly capability: string;
+
+  constructor(code: ForgeErrorCode, capability: string, message: string) {
+    super(message);
+    this.name = 'ForgeCapabilityError';
+    this.code = code;
+    this.capability = capability;
+  }
+}
+
+/** Map a provider gate capability to its typed error code. */
+export function providerErrorCode(capability: string): ForgeErrorCode {
+  switch (capability) {
+    case 'reviewer':
+      return 'FORGE_NO_REVIEWER';
+    case 'ci-pipeline':
+      return 'FORGE_NO_CI_PIPELINE';
+    default:
+      return 'FORGE_NO_PROVIDER';
+  }
+}

packages/forge/src/index.ts

@@ -5,6 +5,13 @@ export type {
   StageSpec,
   BriefClass,
   ClassSource,
+  ForgeOutcome,
+  AuthorityGate,
+  ProviderGate,
+  ForgeGate,
+  ForgeGateResult,
+  ForgeTaskResult,
+  RunMode,
   StageStatus,
   RunManifest,
   ForgeTaskStatus,
@@ -81,5 +88,24 @@ export {
   getPipelineStatus,
 } from './pipeline-runner.js';
 
+// Fail-closed errors and typed outcome model (SDLC-D-035)
+export { FORGE_ERROR_CODES, ForgeCapabilityError, providerErrorCode } from './errors.js';
+export type { ForgeErrorCode } from './errors.js';
+export {
+  isSatisfyingOutcome,
+  isCapabilityGate,
+  isCommandGate,
+  gateLabel,
+  uniformGateResults,
+  simulatedGateResults,
+  waitingGateResults,
+  blockedGateResults,
+  evaluateStageGates,
+} from './outcomes.js';
+export type { StageEvaluation } from './outcomes.js';
+
+// Simulated executor (explicit --simulate only)
+export { createSimulatedExecutor } from './simulated-executor.js';
+
 // CLI
 export { registerForgeCommand } from './cli.js';

packages/forge/src/outcomes.ts

@@ -0,0 +1,147 @@
+import type { GateEntry } from '@mosaicstack/macp';
+
+import type {
+  AuthorityGate,
+  ForgeGate,
+  ForgeGateResult,
+  ForgeOutcome,
+  ForgeTaskResult,
+  ProviderGate,
+} from './types.js';
+
+/**
+ * Gate and dependency satisfaction predicate (SDLC-D-035).
+ *
+ * ONLY a verified `passed` outcome satisfies. Every other member of the closed
+ * outcome set — including `simulated` — is non-satisfying, so a simulated or
+ * authority-blocked result can never be read as success-by-verification.
+ */
+export function isSatisfyingOutcome(outcome: ForgeOutcome): boolean {
+  return outcome === 'passed';
+}
+
+/** Whether a gate is an authority or provider gate (capability-based, command-less). */
+export function isCapabilityGate(gate: ForgeGate): gate is AuthorityGate | ProviderGate {
+  if (typeof gate !== 'object' || gate === null) return false;
+  const kind = (gate as Record<string, unknown>)['kind'];
+  return kind === 'authority' || kind === 'provider';
+}
+
+/** Whether a gate definition carries a real command a mechanical runner can execute. */
+export function isCommandGate(gate: ForgeGate): gate is string | GateEntry {
+  if (typeof gate === 'string') {
+    return gate.trim().length > 0;
+  }
+  if (isCapabilityGate(gate)) {
+    // Authority and provider gates are satisfied by a capability, not a command.
+    return false;
+  }
+  return typeof gate.command === 'string' && gate.command.trim().length > 0;
+}
+
+/** Typed label identifying a gate in results and logs. */
+export function gateLabel(gate: ForgeGate): string {
+  if (typeof gate === 'string') return gate;
+  if (isCapabilityGate(gate)) return `${gate.kind}:${gate.capability}`;
+  return gate.command || gate.type || 'unnamed-gate';
+}
+
+/** Reason string stamped on every simulated gate result. */
+export const SIMULATED_GATE_REASON =
+  'simulated execution (--simulate): gate was not evaluated by a real implementation';
+
+/** Build typed gate results with a uniform outcome for a stage's declared gates. */
+export function uniformGateResults(
+  gates: ForgeGate[],
+  outcome: ForgeOutcome,
+  reason: string,
+): ForgeGateResult[] {
+  return gates.map((gate) => ({ gate: gateLabel(gate), outcome, reason }));
+}
+
+/** Typed simulated gate results — used exclusively in `--simulate` runs. */
+export function simulatedGateResults(gates: ForgeGate[]): ForgeGateResult[] {
+  return uniformGateResults(gates, 'simulated', SIMULATED_GATE_REASON);
+}
+
+/** Typed waiting-for-authority gate results for approval-based stages. */
+export function waitingGateResults(gates: ForgeGate[], reason: string): ForgeGateResult[] {
+  return uniformGateResults(gates, 'waiting-for-authority', reason);
+}
+
+/** Typed blocked gate results for stages whose provider capability is not wired. */
+export function blockedGateResults(gates: ForgeGate[], reason: string): ForgeGateResult[] {
+  return uniformGateResults(gates, 'blocked', reason);
+}
+
+/** Outcome of evaluating a completed stage in normal mode. */
+export interface StageEvaluation {
+  outcome: ForgeOutcome;
+  reason: string;
+  gateResults: ForgeGateResult[];
+}
+
+/**
+ * Evaluate a stage's declared gates against the executor's typed result.
+ *
+ * Fail-closed mapping:
+ * - a `simulated` task or gate outcome in normal mode maps to `error`
+ * - a missing gate result for a required command gate maps to `blocked`
+ * - a non-passing task outcome propagates as the stage outcome
+ * - only verified `passed` task and gate outcomes yield a `passed` stage
+ */
+export function evaluateStageGates(
+  stageName: string,
+  gates: ForgeGate[],
+  result: ForgeTaskResult,
+): StageEvaluation {
+  const gateResults = result.gate_results ?? [];
+
+  if (result.outcome === 'simulated') {
+    return {
+      outcome: 'error',
+      reason: `executor reported a simulated outcome for stage '${stageName}' in normal mode — refusing to treat simulated results as verified`,
+      gateResults,
+    };
+  }
+
+  if (!isSatisfyingOutcome(result.outcome)) {
+    return {
+      outcome: result.outcome,
+      reason: `task outcome is '${result.outcome}': ${result.reason}`,
+      gateResults,
+    };
+  }
+
+  for (const gate of gates) {
+    // Authority and provider gates are pre-flighted before execution; they have
+    // no mechanical result to verify here.
+    if (!isCommandGate(gate)) continue;
+
+    const label = gateLabel(gate);
+    const gateResult = gateResults.find((r) => r.gate === label);
+    if (!gateResult) {
+      return {
+        outcome: 'blocked',
+        reason: `no gate result was reported for required gate '${label}' (stage '${stageName}')`,
+        gateResults,
+      };
+    }
+    if (!isSatisfyingOutcome(gateResult.outcome)) {
+      return {
+        outcome: gateResult.outcome === 'simulated' ? 'error' : gateResult.outcome,
+        reason: `gate '${label}' outcome is '${gateResult.outcome}': ${gateResult.reason}`,
+        gateResults,
+      };
+    }
+  }
+
+  return {
+    outcome: 'passed',
+    reason:
+      gates.length === 0
+        ? "stage declares no gates; task outcome 'passed' accepted"
+        : 'all declared gates verified passed',
+    gateResults,
+  };
+}

packages/forge/src/pipeline-runner.ts

@@ -1,18 +1,33 @@
 import fs from 'node:fs';
 import path from 'node:path';
 
-import { STAGE_SEQUENCE } from './constants.js';
+import { STAGE_SEQUENCE, STAGE_SPECS } from './constants.js';
 import { determineBriefClass, stagesForClass } from './brief-classifier.js';
+import { ForgeCapabilityError, providerErrorCode } from './errors.js';
+import {
+  blockedGateResults,
+  evaluateStageGates,
+  isCapabilityGate,
+  simulatedGateResults,
+  waitingGateResults,
+} from './outcomes.js';
 import { mapStageToTask } from './stage-adapter.js';
+import { createSimulatedExecutor } from './simulated-executor.js';
 import type {
   ForgeTask,
+  ForgeTaskResult,
   PipelineOptions,
   PipelineResult,
   RunManifest,
+  RunMode,
   StageStatus,
   TaskExecutor,
 } from './types.js';
 
+/** Reason stamped on stages that complete under explicit simulation. */
+const SIMULATED_STAGE_REASON =
+  'simulated execution (--simulate): stage was not executed by a real executor';
+
 /**
  * Generate a timestamp-based run ID.
  */
@@ -47,6 +62,7 @@ function createManifest(opts: {
   briefClass: RunManifest['briefClass'];
   classSource: RunManifest['classSource'];
   forceBoard: boolean;
+  mode: RunMode;
   runDir: string;
 }): RunManifest {
   const ts = nowISO();
@@ -57,6 +73,7 @@ function createManifest(opts: {
     briefClass: opts.briefClass,
     classSource: opts.classSource,
     forceBoard: opts.forceBoard,
+    mode: opts.mode,
     createdAt: ts,
     updatedAt: ts,
     currentStage: '',
@@ -108,20 +125,199 @@ export function selectStages(stages?: string[], skipTo?: string): string[] {
   return selected.slice(skipIndex);
 }
 
+/**
+ * Fail closed when the required executor capability is missing (SDLC-D-035).
+ */
+function requireExecutor(executor: TaskExecutor | undefined, simulate: boolean): TaskExecutor {
+  if (executor) return executor;
+  if (simulate) return createSimulatedExecutor({ log: false });
+  throw new ForgeCapabilityError(
+    'FORGE_NO_EXECUTOR',
+    'task-executor',
+    'no task executor is wired; refusing to run the pipeline with a stub executor (fail closed). ' +
+      'Pass --simulate to opt into explicitly simulated execution.',
+  );
+}
+
+/**
+ * Pre-flight a stage's gates in normal mode (fail closed, SDLC-D-035).
+ *
+ * - authority gates: record a typed `waiting-for-authority` stage result and
+ *   raise FORGE_AUTHORITY_REQUIRED — approval-based gates never pass vacuously.
+ * - provider gates: record a typed `blocked` stage result and raise the typed
+ *   capability error for the missing provider.
+ *
+ * Returns the stage status to record when the pre-flight blocks, or undefined
+ * when the stage may proceed.
+ */
+function preflightStageGates(
+  stageName: string,
+  manifest: RunManifest,
+): { status: StageStatus; error: ForgeCapabilityError } | undefined {
+  const spec = STAGE_SPECS[stageName];
+  if (!spec) throw new Error(`Unknown Forge stage: ${stageName}`);
+
+  for (const gate of spec.qualityGates) {
+    if (!isCapabilityGate(gate)) continue;
+
+    const startedAt = manifest.stages[stageName]?.startedAt;
+    const completedAt = nowISO();
+
+    if (gate.kind === 'authority') {
+      const reason = `gate '${gate.capability}' requires authority sign-off; no mechanical implementation exists (${gate.reason})`;
+      return {
+        status: {
+          status: 'waiting-for-authority',
+          reason,
+          startedAt,
+          completedAt,
+          gateResults: waitingGateResults(spec.qualityGates, reason),
+        },
+        error: new ForgeCapabilityError(
+          'FORGE_AUTHORITY_REQUIRED',
+          gate.capability,
+          `stage '${stageName}' is blocked on authority gate '${gate.capability}': ${gate.reason}. ` +
+            'The pipeline fails closed instead of passing vacuously. Record the approval out-of-band ' +
+            'or run with --simulate for explicitly simulated execution.',
+        ),
+      };
+    }
+
+    const reason = `gate '${gate.capability}' requires provider '${gate.capability}' and none is wired (${gate.reason})`;
+    return {
+      status: {
+        status: 'blocked',
+        reason,
+        startedAt,
+        completedAt,
+        gateResults: blockedGateResults(spec.qualityGates, reason),
+      },
+      error: new ForgeCapabilityError(
+        providerErrorCode(gate.capability),
+        gate.capability,
+        `stage '${stageName}' requires provider '${gate.capability}' which is not wired: ${gate.reason}. ` +
+          'The pipeline fails closed instead of passing vacuously.',
+      ),
+    };
+  }
+
+  return undefined;
+}
+
+/**
+ * Execute the given stage tasks sequentially, updating the manifest.
+ *
+ * Normal mode requires a real executor and evaluates every declared command
+ * gate through the typed outcome model; any non-verified result fails closed.
+ * Simulate mode types every stage and gate result as `simulated`.
+ */
+async function executeStages(opts: {
+  manifest: RunManifest;
+  runDir: string;
+  tasks: ForgeTask[];
+  stageNames: string[];
+  executor: TaskExecutor;
+  simulate: boolean;
+}): Promise<void> {
+  const { manifest, runDir, tasks, stageNames, executor, simulate } = opts;
+
+  for (let i = 0; i < tasks.length; i++) {
+    const task = tasks[i]!;
+    const stageName = stageNames[i]!;
+    const spec = STAGE_SPECS[stageName];
+    if (!spec) throw new Error(`Unknown Forge stage: ${stageName}`);
+
+    // Update manifest: stage in progress
+    manifest.currentStage = stageName;
+    manifest.stages[stageName] = {
+      status: 'in_progress',
+      startedAt: nowISO(),
+    };
+    saveManifest(runDir, manifest);
+
+    // Fail-closed pre-flight (normal mode only): authority/provider gates have
+    // no mechanical implementation and must never pass vacuously.
+    if (!simulate) {
+      const blocked = preflightStageGates(stageName, manifest);
+      if (blocked) {
+        manifest.stages[stageName] = blocked.status;
+        manifest.status =
+          blocked.status.status === 'waiting-for-authority' ? 'waiting-for-authority' : 'failed';
+        saveManifest(runDir, manifest);
+        throw blocked.error;
+      }
+    }
+
+    let result: ForgeTaskResult;
+    try {
+      await executor.submitTask(task);
+      result = await executor.waitForCompletion(task.id, task.timeoutSeconds * 1000);
+    } catch (error) {
+      // Process errors (including timeouts) map to the fail-closed `error` outcome.
+      const reason = error instanceof Error ? error.message : String(error);
+      manifest.stages[stageName] = {
+        status: 'error',
+        reason: `executor error: ${reason}`,
+        startedAt: manifest.stages[stageName]?.startedAt,
+        completedAt: nowISO(),
+        gateResults: [],
+      };
+      manifest.status = 'failed';
+      saveManifest(runDir, manifest);
+      throw error instanceof Error ? error : new Error(reason);
+    }
+
+    if (simulate) {
+      manifest.stages[stageName] = {
+        status: 'simulated',
+        reason: SIMULATED_STAGE_REASON,
+        startedAt: manifest.stages[stageName]?.startedAt,
+        completedAt: nowISO(),
+        gateResults: simulatedGateResults(spec.qualityGates),
+      };
+      saveManifest(runDir, manifest);
+      continue;
+    }
+
+    const evaluation = evaluateStageGates(stageName, spec.qualityGates, result);
+    manifest.stages[stageName] = {
+      status: evaluation.outcome,
+      reason: evaluation.reason,
+      startedAt: manifest.stages[stageName]?.startedAt,
+      completedAt: nowISO(),
+      gateResults: evaluation.gateResults,
+    };
+
+    if (evaluation.outcome !== 'passed') {
+      manifest.status =
+        evaluation.outcome === 'waiting-for-authority' ? 'waiting-for-authority' : 'failed';
+      saveManifest(runDir, manifest);
+      throw new Error(`Stage ${stageName} ${evaluation.outcome}: ${evaluation.reason}`);
+    }
+
+    saveManifest(runDir, manifest);
+  }
+}
+
 /**
  * Run the Forge pipeline.
  *
- * 1. Classify the brief
- * 2. Generate a run ID and create run directory
- * 3. Map stages to tasks and submit to TaskExecutor
- * 4. Track manifest with stage statuses
- * 5. Return pipeline result
+ * 1. Fail closed unless a real executor is wired or simulation is explicit
+ * 2. Classify the brief
+ * 3. Generate a run ID and create run directory
+ * 4. Map stages to tasks and submit to TaskExecutor
+ * 5. Track manifest with typed stage outcomes
+ * 6. Return pipeline result
  */
 export async function runPipeline(
   briefPath: string,
   projectRoot: string,
   options: PipelineOptions,
 ): Promise<PipelineResult> {
+  const simulate = options.simulate ?? false;
+  const executor = requireExecutor(options.executor, simulate);
+  const mode: RunMode = simulate ? 'simulated' : 'normal';
+
   const resolvedRoot = path.resolve(projectRoot);
   const resolvedBrief = path.resolve(briefPath);
   const briefContent = fs.readFileSync(resolvedBrief, 'utf-8');
@@ -146,6 +342,7 @@ export async function runPipeline(
     briefClass,
     classSource,
     forceBoard: options.forceBoard ?? false,
+    mode,
     runDir,
   });
 
@@ -172,54 +369,10 @@ export async function runPipeline(
   }
 
   // Execute stages
-  const { executor } = options;
-  for (let i = 0; i < tasks.length; i++) {
-    const task = tasks[i]!;
-    const stageName = selectedStages[i]!;
+  await executeStages({ manifest, runDir, tasks, stageNames: selectedStages, executor, simulate });
 
-    // Update manifest: stage in progress
-    manifest.currentStage = stageName;
-    manifest.stages[stageName] = {
-      status: 'in_progress',
-      startedAt: nowISO(),
-    };
-    saveManifest(runDir, manifest);
-
-    try {
-      await executor.submitTask(task);
-      const result = await executor.waitForCompletion(task.id, task.timeoutSeconds * 1000);
-
-      // Update manifest: stage completed or failed
-      const stageStatus: StageStatus = {
-        status: result.status === 'completed' ? 'passed' : 'failed',
-        startedAt: manifest.stages[stageName]!.startedAt,
-        completedAt: nowISO(),
-      };
-      manifest.stages[stageName] = stageStatus;
-
-      if (result.status !== 'completed') {
-        manifest.status = 'failed';
-        saveManifest(runDir, manifest);
-        throw new Error(`Stage ${stageName} failed with status: ${result.status}`);
-      }
-
-      saveManifest(runDir, manifest);
-    } catch (error) {
-      if (!manifest.stages[stageName]?.completedAt) {
-        manifest.stages[stageName] = {
-          status: 'failed',
-          startedAt: manifest.stages[stageName]?.startedAt,
-          completedAt: nowISO(),
-        };
-      }
-      manifest.status = 'failed';
-      saveManifest(runDir, manifest);
-      throw error;
-    }
-  }
-
-  // All stages passed
-  manifest.status = 'completed';
+  // All stages reached a terminal state for this mode
+  manifest.status = simulate ? 'simulated' : 'completed';
   saveManifest(runDir, manifest);
 
   return {
@@ -234,22 +387,30 @@ export async function runPipeline(
 }
 
 /**
- * Resume a pipeline from the last incomplete stage.
+ * Resume a pipeline from the last non-passed stage.
  */
 export async function resumePipeline(
   runDir: string,
-  executor: TaskExecutor,
+  executor?: TaskExecutor,
+  options?: { simulate?: boolean },
 ): Promise<PipelineResult> {
+  const simulate = options?.simulate ?? false;
+  const wiredExecutor = requireExecutor(executor, simulate);
+  const mode: RunMode = simulate ? 'simulated' : 'normal';
+
   const manifest = loadManifest(runDir);
   const resolvedRoot = path.dirname(path.dirname(path.dirname(runDir))); // .forge/runs/{id} → project root
 
   const briefContent = fs.readFileSync(manifest.brief, 'utf-8');
   const allStages = stagesForClass(manifest.briefClass, manifest.forceBoard);
 
-  // Find first non-passed stage
+  manifest.mode = mode;
+
+  // Find first non-satisfying stage (only a verified `passed` counts as done;
+  // simulated and waiting-for-authority stages are re-run).
   const resumeFrom = allStages.find((s) => manifest.stages[s]?.status !== 'passed');
   if (!resumeFrom) {
-    manifest.status = 'completed';
+    manifest.status = mode === 'simulated' ? 'simulated' : 'completed';
     saveManifest(runDir, manifest);
     return {
       runId: manifest.runId,
@@ -284,49 +445,16 @@ export async function resumePipeline(
     tasks.push(task);
   }
 
-  for (let i = 0; i < tasks.length; i++) {
-    const task = tasks[i]!;
-    const stageName = remainingStages[i]!;
+  await executeStages({
+    manifest,
+    runDir,
+    tasks,
+    stageNames: remainingStages,
+    executor: wiredExecutor,
+    simulate,
+  });
 
-    manifest.currentStage = stageName;
-    manifest.stages[stageName] = {
-      status: 'in_progress',
-      startedAt: nowISO(),
-    };
-    saveManifest(runDir, manifest);
-
-    try {
-      await executor.submitTask(task);
-      const result = await executor.waitForCompletion(task.id, task.timeoutSeconds * 1000);
-
-      manifest.stages[stageName] = {
-        status: result.status === 'completed' ? 'passed' : 'failed',
-        startedAt: manifest.stages[stageName]!.startedAt,
-        completedAt: nowISO(),
-      };
-
-      if (result.status !== 'completed') {
-        manifest.status = 'failed';
-        saveManifest(runDir, manifest);
-        throw new Error(`Stage ${stageName} failed with status: ${result.status}`);
-      }
-
-      saveManifest(runDir, manifest);
-    } catch (error) {
-      if (!manifest.stages[stageName]?.completedAt) {
-        manifest.stages[stageName] = {
-          status: 'failed',
-          startedAt: manifest.stages[stageName]?.startedAt,
-          completedAt: nowISO(),
-        };
-      }
-      manifest.status = 'failed';
-      saveManifest(runDir, manifest);
-      throw error;
-    }
-  }
-
-  manifest.status = 'completed';
+  manifest.status = simulate ? 'simulated' : 'completed';
   saveManifest(runDir, manifest);
 
   return {

packages/forge/src/simulated-executor.ts

@@ -0,0 +1,32 @@
+import type { ForgeTask, ForgeTaskResult, TaskExecutor } from './types.js';
+
+/**
+ * Simulated executor — used ONLY when the caller explicitly passes --simulate.
+ *
+ * It submits no real work and returns typed `simulated` results so a simulated
+ * run can never be confused with a verified one. In normal mode (no --simulate)
+ * the CLI refuses to run at all with FORGE_NO_EXECUTOR instead of wiring this
+ * stub (fail closed, SDLC-D-035).
+ */
+export function createSimulatedExecutor(options?: { log?: boolean }): TaskExecutor {
+  const log = options?.log ?? true;
+  return {
+    async submitTask(task: ForgeTask) {
+      if (log) console.log(`  [forge:simulated] stage submitted: ${task.id} (${task.title})`);
+    },
+    async waitForCompletion(taskId: string): Promise<ForgeTaskResult> {
+      if (log) console.log(`  [forge:simulated] stage complete:  ${taskId}`);
+      return {
+        task_id: taskId,
+        outcome: 'simulated',
+        reason: 'no executor wired; simulated execution requested via --simulate',
+        completed_at: new Date().toISOString(),
+        exit_code: 0,
+        gate_results: [],
+      };
+    },
+    async getTaskStatus() {
+      return 'completed' as const;
+    },
+  };
+}

packages/forge/src/types.ts

@@ -1,4 +1,4 @@
-import type { GateEntry, TaskResult } from '@mosaicstack/macp';
+import type { GateEntry } from '@mosaicstack/macp';
 
 /** Stage dispatch mode. */
 export type StageDispatch = 'exec' | 'yolo' | 'pi';
@@ -6,6 +6,58 @@ export type StageDispatch = 'exec' | 'yolo' | 'pi';
 /** Stage type — determines agent selection and gate requirements. */
 export type StageType = 'research' | 'review' | 'coding' | 'deploy';
 
+/**
+ * Typed outcome for every gate and stage evaluation — closed set (SDLC-D-035).
+ *
+ * Only `passed` means "verified by a real implementation". `simulated` is
+ * produced exclusively in explicit `--simulate` runs and is never satisfying.
+ */
+export type ForgeOutcome =
+  | 'passed'
+  | 'failed'
+  | 'blocked'
+  | 'error'
+  | 'waiting-for-authority'
+  | 'simulated'
+  | 'not-applicable';
+
+/** A gate that requires authority (human/board) sign-off; no mechanical command can satisfy it. */
+export interface AuthorityGate {
+  kind: 'authority';
+  capability: string;
+  reason: string;
+}
+
+/** A gate that requires a wired provider (e.g. an AI reviewer, CI pipeline) to evaluate. */
+export interface ProviderGate {
+  kind: 'provider';
+  capability: string;
+  reason: string;
+}
+
+/** Forge quality gate: a real command, an authority sign-off, or a provider-backed check. */
+export type ForgeGate = string | GateEntry | AuthorityGate | ProviderGate;
+
+/** Typed result of evaluating a single quality gate. */
+export interface ForgeGateResult {
+  gate: string;
+  outcome: ForgeOutcome;
+  reason: string;
+  exitCode?: number;
+  output?: string;
+  timedOut?: boolean;
+}
+
+/** Typed result of a task/stage execution returned by a TaskExecutor. */
+export interface ForgeTaskResult {
+  task_id: string;
+  outcome: ForgeOutcome;
+  reason: string;
+  completed_at: string;
+  exit_code: number;
+  gate_results: ForgeGateResult[];
+}
+
 /** Stage specification — defines a single pipeline stage. */
 export interface StageSpec {
   number: string;
@@ -14,7 +66,7 @@ export interface StageSpec {
   type: StageType;
   gate: string;
   promptFile: string;
-  qualityGates: (string | GateEntry)[];
+  qualityGates: ForgeGate[];
 }
 
 /** Brief classification. */
@@ -25,11 +77,18 @@ export type ClassSource = 'cli' | 'frontmatter' | 'auto';
 
 /** Per-stage status within a run manifest. */
 export interface StageStatus {
-  status: 'pending' | 'in_progress' | 'passed' | 'failed';
+  status: 'pending' | 'in_progress' | ForgeOutcome;
+  /** Why the stage reached its current (terminal) outcome, when applicable. */
+  reason?: string;
   startedAt?: string;
   completedAt?: string;
+  /** Typed per-gate results recorded alongside the stage outcome. */
+  gateResults?: ForgeGateResult[];
 }
 
+/** Execution mode of a run. */
+export type RunMode = 'normal' | 'simulated';
+
 /** Run manifest — persisted to disk as manifest.json. */
 export interface RunManifest {
   runId: string;
@@ -38,10 +97,23 @@ export interface RunManifest {
   briefClass: BriefClass;
   classSource: ClassSource;
   forceBoard: boolean;
+  /**
+   * Execution mode. `simulated` runs stub execution; their results are typed
+   * `simulated` and must never be read as verified success. Optional because
+   * manifests written before this field existed default to `normal`.
+   */
+  mode?: RunMode;
   createdAt: string;
   updatedAt: string;
   currentStage: string;
-  status: 'in_progress' | 'completed' | 'failed' | 'interrupted' | 'rejected';
+  status:
+    | 'in_progress'
+    | 'completed'
+    | 'failed'
+    | 'interrupted'
+    | 'rejected'
+    | 'simulated'
+    | 'waiting-for-authority';
   stages: Record<string, StageStatus>;
 }
 
@@ -65,7 +137,7 @@ export interface ForgeTask {
   briefPath: string;
   resultPath: string;
   timeoutSeconds: number;
-  qualityGates: (string | GateEntry)[];
+  qualityGates: ForgeGate[];
   worktree?: string;
   command?: string;
   dependsOn?: string[];
@@ -76,7 +148,7 @@ export interface ForgeTask {
 /** Abstract task executor — decouples from packages/coord. */
 export interface TaskExecutor {
   submitTask(task: ForgeTask): Promise<void>;
-  waitForCompletion(taskId: string, timeoutMs: number): Promise<TaskResult>;
+  waitForCompletion(taskId: string, timeoutMs: number): Promise<ForgeTaskResult>;
   getTaskStatus(taskId: string): Promise<ForgeTaskStatus>;
 }
 
@@ -122,7 +194,16 @@ export interface PipelineOptions {
   stages?: string[];
   skipTo?: string;
   dryRun?: boolean;
-  executor: TaskExecutor;
+  /**
+   * Real task executor. Required in normal mode: the pipeline fails closed
+   * with FORGE_NO_EXECUTOR when it is absent.
+   */
+  executor?: TaskExecutor;
+  /**
+   * Explicit opt-in to simulated execution. Every stage and gate result is
+   * typed `simulated` and is never satisfying.
+   */
+  simulate?: boolean;
 }
 
 /** Pipeline run result. */

packages/macp/__tests__/gate-runner.test.ts

@@ -1,253 +0,0 @@
-import { mkdirSync, readFileSync, rmSync } from 'node:fs';
-import { join } from 'node:path';
-import { tmpdir } from 'node:os';
-import { randomUUID } from 'node:crypto';
-import { describe, it, expect, beforeEach, afterEach } from 'vitest';
-import { normalizeGate, countAIFindings, runGate, runGates } from '../src/gate-runner.js';
-
-function makeTmpDir(): string {
-  const dir = join(tmpdir(), `macp-gate-${randomUUID()}`);
-  mkdirSync(dir, { recursive: true });
-  return dir;
-}
-
-describe('normalizeGate', () => {
-  it('normalizes a string to mechanical gate', () => {
-    expect(normalizeGate('echo test')).toEqual({
-      command: 'echo test',
-      type: 'mechanical',
-      fail_on: 'blocker',
-    });
-  });
-
-  it('normalizes an object gate with defaults', () => {
-    expect(normalizeGate({ command: 'lint' })).toEqual({
-      command: 'lint',
-      type: 'mechanical',
-      fail_on: 'blocker',
-    });
-  });
-
-  it('preserves explicit type and fail_on', () => {
-    expect(normalizeGate({ command: 'review', type: 'ai-review', fail_on: 'any' })).toEqual({
-      command: 'review',
-      type: 'ai-review',
-      fail_on: 'any',
-    });
-  });
-
-  it('handles non-string/non-object input', () => {
-    expect(normalizeGate(42)).toEqual({ command: '', type: 'mechanical', fail_on: 'blocker' });
-    expect(normalizeGate(null)).toEqual({ command: '', type: 'mechanical', fail_on: 'blocker' });
-  });
-});
-
-describe('countAIFindings', () => {
-  it('returns zeros for non-object', () => {
-    expect(countAIFindings(null)).toEqual({ blockers: 0, total: 0 });
-    expect(countAIFindings('string')).toEqual({ blockers: 0, total: 0 });
-    expect(countAIFindings([])).toEqual({ blockers: 0, total: 0 });
-  });
-
-  it('counts from stats block', () => {
-    const output = { stats: { blockers: 2, should_fix: 3, suggestions: 1 } };
-    expect(countAIFindings(output)).toEqual({ blockers: 2, total: 6 });
-  });
-
-  it('counts from findings array when stats has no blockers', () => {
-    const output = {
-      stats: { blockers: 0 },
-      findings: [{ severity: 'blocker' }, { severity: 'warning' }, { severity: 'blocker' }],
-    };
-    expect(countAIFindings(output)).toEqual({ blockers: 2, total: 3 });
-  });
-
-  it('uses stats blockers over findings array when stats has blockers', () => {
-    const output = {
-      stats: { blockers: 5 },
-      findings: [{ severity: 'blocker' }, { severity: 'warning' }],
-    };
-    // stats.blockers = 5, total from stats = 5+0+0 = 5, findings not used for total since stats total is non-zero
-    expect(countAIFindings(output)).toEqual({ blockers: 5, total: 5 });
-  });
-
-  it('counts findings length as total when stats has zero total', () => {
-    const output = {
-      findings: [{ severity: 'warning' }, { severity: 'info' }],
-    };
-    expect(countAIFindings(output)).toEqual({ blockers: 0, total: 2 });
-  });
-});
-
-describe('runGate', () => {
-  let tmp: string;
-  let logPath: string;
-
-  beforeEach(() => {
-    tmp = makeTmpDir();
-    logPath = join(tmp, 'gate.log');
-  });
-
-  afterEach(() => {
-    rmSync(tmp, { recursive: true, force: true });
-  });
-
-  it('passes mechanical gate on exit 0', () => {
-    const result = runGate('echo hello', tmp, logPath, 30);
-    expect(result.passed).toBe(true);
-    expect(result.exit_code).toBe(0);
-    expect(result.type).toBe('mechanical');
-    expect(result.output).toContain('hello');
-  });
-
-  it('fails mechanical gate on non-zero exit', () => {
-    const result = runGate('exit 1', tmp, logPath, 30);
-    expect(result.passed).toBe(false);
-    expect(result.exit_code).toBe(1);
-  });
-
-  it('ci-pipeline always passes', () => {
-    const result = runGate({ command: 'anything', type: 'ci-pipeline' }, tmp, logPath, 30);
-    expect(result.passed).toBe(true);
-    expect(result.type).toBe('ci-pipeline');
-    expect(result.output).toBe('CI pipeline gate placeholder');
-  });
-
-  it('empty command passes', () => {
-    const result = runGate({ command: '' }, tmp, logPath, 30);
-    expect(result.passed).toBe(true);
-  });
-
-  it('ai-review gate parses JSON output', () => {
-    const json = JSON.stringify({ stats: { blockers: 0, should_fix: 1 } });
-    const result = runGate({ command: `echo '${json}'`, type: 'ai-review' }, tmp, logPath, 30);
-    expect(result.passed).toBe(true);
-    expect(result.blockers).toBe(0);
-    expect(result.findings).toBe(1);
-  });
-
-  it('ai-review gate fails on blockers', () => {
-    const json = JSON.stringify({ stats: { blockers: 2 } });
-    const result = runGate({ command: `echo '${json}'`, type: 'ai-review' }, tmp, logPath, 30);
-    expect(result.passed).toBe(false);
-    expect(result.blockers).toBe(2);
-  });
-
-  it('ai-review gate with fail_on=any fails on any findings', () => {
-    const json = JSON.stringify({ stats: { blockers: 0, should_fix: 1 } });
-    const result = runGate(
-      { command: `echo '${json}'`, type: 'ai-review', fail_on: 'any' },
-      tmp,
-      logPath,
-      30,
-    );
-    expect(result.passed).toBe(false);
-    expect(result.fail_on).toBe('any');
-  });
-
-  it('ai-review gate fails on invalid JSON output', () => {
-    const result = runGate({ command: 'echo "not json"', type: 'ai-review' }, tmp, logPath, 30);
-    expect(result.passed).toBe(false);
-    expect(result.parse_error).toBeDefined();
-  });
-
-  it('writes to log file', () => {
-    runGate('echo logged', tmp, logPath, 30);
-    const log = readFileSync(logPath, 'utf-8');
-    expect(log).toContain('COMMAND: echo logged');
-    expect(log).toContain('logged');
-    expect(log).toContain('EXIT:');
-  });
-});
-
-describe('runGates', () => {
-  let tmp: string;
-  let logPath: string;
-  let eventsPath: string;
-
-  beforeEach(() => {
-    tmp = makeTmpDir();
-    logPath = join(tmp, 'gates.log');
-    eventsPath = join(tmp, 'events.ndjson');
-  });
-
-  afterEach(() => {
-    rmSync(tmp, { recursive: true, force: true });
-  });
-
-  it('runs multiple gates and returns results', () => {
-    const { allPassed, gateResults } = runGates(
-      ['echo one', 'echo two'],
-      tmp,
-      logPath,
-      30,
-      eventsPath,
-      'task-1',
-    );
-    expect(allPassed).toBe(true);
-    expect(gateResults).toHaveLength(2);
-  });
-
-  it('reports failure when any gate fails', () => {
-    const { allPassed, gateResults } = runGates(
-      ['echo ok', 'exit 1'],
-      tmp,
-      logPath,
-      30,
-      eventsPath,
-      'task-2',
-    );
-    expect(allPassed).toBe(false);
-    expect(gateResults[0]!.passed).toBe(true);
-    expect(gateResults[1]!.passed).toBe(false);
-  });
-
-  it('emits events for each gate', () => {
-    runGates(['echo test'], tmp, logPath, 30, eventsPath, 'task-3');
-    const events = readFileSync(eventsPath, 'utf-8')
-      .trim()
-      .split('\n')
-      .map((l) => JSON.parse(l));
-    expect(events).toHaveLength(2); // started + passed
-    expect(events[0].event_type).toBe('rail.check.started');
-    expect(events[1].event_type).toBe('rail.check.passed');
-  });
-
-  it('skips gates with empty command (non ci-pipeline)', () => {
-    const { gateResults } = runGates(
-      [{ command: '', type: 'mechanical' }, 'echo real'],
-      tmp,
-      logPath,
-      30,
-      eventsPath,
-      'task-4',
-    );
-    expect(gateResults).toHaveLength(1);
-  });
-
-  it('does not skip ci-pipeline even with empty command', () => {
-    const { gateResults } = runGates(
-      [{ command: '', type: 'ci-pipeline' }],
-      tmp,
-      logPath,
-      30,
-      eventsPath,
-      'task-5',
-    );
-    expect(gateResults).toHaveLength(1);
-    expect(gateResults[0]!.passed).toBe(true);
-  });
-
-  it('emits failed event with correct message', () => {
-    runGates(['exit 42'], tmp, logPath, 30, eventsPath, 'task-6');
-    const events = readFileSync(eventsPath, 'utf-8')
-      .trim()
-      .split('\n')
-      .map((l) => JSON.parse(l));
-    const failEvent = events.find(
-      (e: Record<string, unknown>) => e.event_type === 'rail.check.failed',
-    );
-    expect(failEvent).toBeDefined();
-    expect(failEvent.message).toContain('Gate failed (');
-  });
-});

packages/macp/src/cli.spec.ts

@@ -1,5 +1,8 @@
-import { describe, it, expect } from 'vitest';
+import { describe, it, expect, afterEach, beforeEach, vi } from 'vitest';
 import { Command } from 'commander';
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
 import { registerMacpCommand } from './cli.js';
 
 describe('registerMacpCommand', () => {
@@ -75,3 +78,162 @@ describe('registerMacpCommand', () => {
     expect(topLevel).toContain('events');
   });
 });
+
+/**
+ * RI-N2 fail-closed CLI behavior: an unimplemented capability is a failure,
+ * never a success. Every stub exits nonzero with a typed message, and the
+ * implemented `macp gate` mirrors the typed gate-runner states.
+ */
+describe('registerMacpCommand fail-closed (RI-N2)', () => {
+  let tmpDir: string;
+
+  function buildProgram(): Command {
+    const program = new Command();
+    program.exitOverride();
+    program.configureOutput({ writeErr: () => {} });
+    registerMacpCommand(program);
+    return program;
+  }
+
+  beforeEach(() => {
+    tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'macp-cli-failclosed-'));
+    process.exitCode = 0;
+  });
+
+  afterEach(() => {
+    process.exitCode = 0;
+    fs.rmSync(tmpDir, { recursive: true, force: true });
+  });
+
+  it('macp tasks list exits nonzero (unimplemented capability)', async () => {
+    const program = buildProgram();
+    await program.parseAsync(['macp', 'tasks', 'list'], { from: 'user' });
+    expect(process.exitCode).not.toBe(0);
+  });
+
+  it('macp submit exits nonzero with a typed MACP_NOT_IMPLEMENTED message', async () => {
+    const program = buildProgram();
+    const errSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+    try {
+      await program.parseAsync(['macp', 'submit', 'spec.json'], { from: 'user' });
+      expect(process.exitCode).not.toBe(0);
+      const errText = errSpy.mock.calls.map((c) => String(c[0])).join('\n');
+      expect(errText).toContain('MACP_NOT_IMPLEMENTED');
+    } finally {
+      errSpy.mockRestore();
+    }
+  });
+
+  it('macp events tail exits nonzero (unimplemented capability)', async () => {
+    const program = buildProgram();
+    await program.parseAsync(['macp', 'events', 'tail'], { from: 'user' });
+    expect(process.exitCode).not.toBe(0);
+  });
+
+  it('macp gate runs a green inline command and exits 0', async () => {
+    const program = buildProgram();
+    await program.parseAsync(
+      [
+        'macp',
+        'gate',
+        'exit 0',
+        '--cwd',
+        tmpDir,
+        '--log',
+        path.join(tmpDir, 'g.log'),
+        '--timeout',
+        '10',
+      ],
+      { from: 'user' },
+    );
+    expect(process.exitCode).toBe(0);
+  });
+
+  it('macp gate exits nonzero on a failing command', async () => {
+    const program = buildProgram();
+    await program.parseAsync(
+      [
+        'macp',
+        'gate',
+        'exit 9',
+        '--cwd',
+        tmpDir,
+        '--log',
+        path.join(tmpDir, 'g.log'),
+        '--timeout',
+        '10',
+      ],
+      { from: 'user' },
+    );
+    expect(process.exitCode).not.toBe(0);
+  });
+
+  it('macp gate with an unimplemented ci-pipeline capability exits nonzero', async () => {
+    const program = buildProgram();
+    const specPath = path.join(tmpDir, 'gates.json');
+    fs.writeFileSync(specPath, JSON.stringify([{ type: 'ci-pipeline' }]));
+    await program.parseAsync(
+      [
+        'macp',
+        'gate',
+        specPath,
+        '--cwd',
+        tmpDir,
+        '--log',
+        path.join(tmpDir, 'g.log'),
+        '--timeout',
+        '10',
+      ],
+      { from: 'user' },
+    );
+    expect(process.exitCode).not.toBe(0);
+  });
+
+  it('macp gate --simulate completes (exit 0) but reports simulated results', async () => {
+    const program = buildProgram();
+    const logSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+    try {
+      await program.parseAsync(
+        [
+          'macp',
+          'gate',
+          'exit 0',
+          '--simulate',
+          '--cwd',
+          tmpDir,
+          '--log',
+          path.join(tmpDir, 'g.log'),
+          '--timeout',
+          '10',
+        ],
+        { from: 'user' },
+      );
+      // completes only because the caller explicitly asked to simulate
+      expect(process.exitCode).toBe(0);
+      const outText = logSpy.mock.calls.map((c) => String(c[0])).join('\n');
+      expect(outText).toContain('simulated');
+      expect(outText).toContain('SIMULATED');
+    } finally {
+      logSpy.mockRestore();
+    }
+  });
+
+  it('macp gate with an empty spec exits nonzero with a typed error', async () => {
+    const program = buildProgram();
+    await program.parseAsync(
+      [
+        'macp',
+        'gate',
+        '   ',
+        '--cwd',
+        tmpDir,
+        '--log',
+        path.join(tmpDir, 'g.log'),
+        '--timeout',
+        '10',
+      ],
+      { from: 'user' },
+    );
+    expect(process.exitCode).not.toBe(0);
+  });
+});

packages/macp/src/cli.ts

@@ -1,5 +1,73 @@
+import { existsSync, readFileSync } from 'node:fs';
+
 import type { Command } from 'commander';
 
+import { runGates } from './gate-runner.js';
+import { MACPCapabilityError, type MacpErrorCode } from './errors.js';
+
+/**
+ * Load gates from a spec: an existing file (JSON gates array, a JSON object
+ * with `quality_gates`, a JSON gate object, or one command per line) or an
+ * inline command string. Fails closed with a typed capability error when the
+ * spec contains no executable gate definition.
+ */
+function loadGateSpec(spec: string): unknown[] {
+  if (existsSync(spec)) {
+    const raw = readFileSync(spec, 'utf-8');
+    try {
+      const parsed = JSON.parse(raw) as unknown;
+      if (Array.isArray(parsed)) {
+        if (parsed.length === 0) {
+          throw new MACPCapabilityError(
+            'MACP_NO_COMMAND',
+            'gate-spec',
+            `gate spec file '${spec}' contains an empty gates array`,
+          );
+        }
+        return parsed;
+      }
+      if (typeof parsed === 'object' && parsed !== null) {
+        const obj = parsed as Record<string, unknown>;
+        if (Array.isArray(obj['quality_gates'])) {
+          return obj['quality_gates'];
+        }
+        return [parsed];
+      }
+      throw new MACPCapabilityError(
+        'MACP_NO_COMMAND',
+        'gate-spec',
+        `gate spec file '${spec}' parsed to ${typeof parsed} — expected a gates array, a task with quality_gates, or a gate object`,
+      );
+    } catch (exc) {
+      if (exc instanceof MACPCapabilityError) throw exc;
+      // Not JSON — treat each non-empty line as a command gate.
+      const lines = raw
+        .split('\n')
+        .map((l) => l.trim())
+        .filter((l) => l.length > 0);
+      if (lines.length > 0) return lines;
+      throw new MACPCapabilityError(
+        'MACP_NO_COMMAND',
+        'gate-spec',
+        `gate spec file '${spec}' contains no gates`,
+      );
+    }
+  }
+  if (spec.trim().length > 0) return [spec];
+  throw new MACPCapabilityError('MACP_NO_COMMAND', 'gate-spec', 'gate spec is empty');
+}
+
+/** Print a typed not-implemented failure and exit nonzero (RI-N2 fail-closed). */
+function notImplemented(subcommand: string, capability: string, hint: string): void {
+  const err = new MACPCapabilityError(
+    'MACP_NOT_IMPLEMENTED',
+    capability,
+    `${subcommand} is not implemented in @mosaicstack/macp yet (${capability} capability absent) — ${hint}`,
+  );
+  console.error(`[macp] ${subcommand}: ${err.message} [${err.code}]`);
+  process.exitCode = 1;
+}
+
 /**
  * Register macp subcommands on an existing Commander program.
  * This avoids cross-package Commander version mismatches by using the
@@ -24,15 +92,14 @@ export function registerMacpCommand(parent: Command): void {
       'Filter by task type (coding|deploy|research|review|documentation|infrastructure)',
     )
     .action((opts: { status?: string; type?: string }) => {
-      // not yet wired — task persistence layer is not present in @mosaicstack/macp
-      console.log('[macp] tasks list: not yet wired — use macp package programmatically');
+      // unimplemented capability — a failure, never a success (RI-N2)
       if (opts.status) {
         console.log(`  status filter: ${opts.status}`);
       }
       if (opts.type) {
         console.log(`  type filter: ${opts.type}`);
       }
-      process.exitCode = 0;
+      notImplemented('tasks list', 'task-persistence', 'use the macp package programmatically');
     });
 
   // ─── submit ──────────────────────────────────────────────────────────────
@@ -41,12 +108,11 @@ export function registerMacpCommand(parent: Command): void {
     .command('submit <path>')
     .description('Submit a task from a JSON/YAML spec file')
     .action((specPath: string) => {
-      // not yet wired — task submission requires a running MACP server
-      console.log('[macp] submit: not yet wired — use macp package programmatically');
+      // unimplemented capability — a failure, never a success (RI-N2)
       console.log(`  spec path: ${specPath}`);
       console.log('  task id:   (unavailable — no MACP server connected)');
       console.log('  status:    (unavailable — no MACP server connected)');
-      process.exitCode = 0;
+      notImplemented('submit', 'macp-server', 'use the macp package programmatically');
     });
 
   // ─── gate ────────────────────────────────────────────────────────────────
@@ -58,16 +124,58 @@ export function registerMacpCommand(parent: Command): void {
     .option('--cwd <path>', 'Working directory for gate execution', process.cwd())
     .option('--log <path>', 'Path to write gate log output', '/tmp/macp-gate.log')
     .option('--timeout <seconds>', 'Gate timeout in seconds', '60')
-    .action((spec: string, opts: { failOn: string; cwd: string; log: string; timeout: string }) => {
-      // not yet wired — gate execution requires a task context and event sink
-      console.log('[macp] gate: not yet wired — use macp package programmatically');
-      console.log(`  spec:     ${spec}`);
-      console.log(`  fail-on:  ${opts.failOn}`);
-      console.log(`  cwd:      ${opts.cwd}`);
-      console.log(`  log:      ${opts.log}`);
-      console.log(`  timeout:  ${opts.timeout}s`);
-      process.exitCode = 0;
-    });
+    .option(
+      '--simulate',
+      'Simulate gates instead of executing them; results are typed simulated and never satisfy a check',
+    )
+    .action(
+      (
+        spec: string,
+        opts: { failOn: string; cwd: string; log: string; timeout: string; simulate?: boolean },
+      ) => {
+        let gates: unknown[];
+        try {
+          gates = loadGateSpec(spec);
+        } catch (exc) {
+          if (exc instanceof MACPCapabilityError) {
+            console.error(`[macp] gate: ${exc.message} [${exc.code}]`);
+          } else {
+            console.error(`[macp] gate: ${String(exc)}`);
+          }
+          process.exitCode = 1;
+          return;
+        }
+
+        const timeoutSec = Number.parseInt(opts.timeout, 10) || 60;
+        const eventsPath = `${opts.log}.events.ndjson`;
+        const { state, gateResults } = runGates(
+          gates,
+          opts.cwd,
+          opts.log,
+          timeoutSec,
+          eventsPath,
+          'macp-cli-gate',
+          {
+            simulate: opts.simulate,
+          },
+        );
+
+        for (const r of gateResults) {
+          const label = r.command || r.type;
+          const reason = r.reason ? ` — ${r.reason}` : '';
+          console.log(`[macp] gate ${r.status}: ${label}${reason}`);
+        }
+        if (opts.simulate) {
+          console.log(
+            '[macp] SIMULATED run — every result is typed simulated and can never satisfy a gate, dependency, or release check',
+          );
+        }
+
+        // Simulated runs may complete (exit 0) only because the caller
+        // explicitly passed --simulate; the typed state stays 'simulated'.
+        process.exitCode = state === 'passed' || state === 'simulated' ? 0 : 1;
+      },
+    );
 
   // ─── events ──────────────────────────────────────────────────────────────
 
@@ -79,14 +187,16 @@ export function registerMacpCommand(parent: Command): void {
     .option('--file <path>', 'Path to the MACP events NDJSON file')
     .option('--follow', 'Follow the file for new events (like tail -f)')
     .action((opts: { file?: string; follow?: boolean }) => {
-      // not yet wired — event streaming requires a live event source
-      console.log('[macp] events tail: not yet wired — use macp package programmatically');
+      // unimplemented capability — a failure, never a success (RI-N2)
       if (opts.file) {
         console.log(`  file:   ${opts.file}`);
       }
       if (opts.follow) {
         console.log('  mode:   follow');
       }
-      process.exitCode = 0;
+      notImplemented('events tail', 'event-source', 'use the macp package programmatically');
     });
 }
+
+// Re-export so CLI consumers can surface typed capability codes.
+export type { MacpErrorCode };

packages/macp/src/errors.ts

@@ -0,0 +1,35 @@
+/** Typed error code from the closed MACP_ERROR_CODES set. */
+export type MacpErrorCode = (typeof MACP_ERROR_CODES)[number];
+/**
+ * Typed fail-closed capability errors (RI-N2, SDLC-D-035).
+ *
+ * MACP must fail closed when a required capability (executor, reviewer,
+ * command, CI provider, human authority) is absent. These typed codes mirror
+ * the Forge failure vocabulary (FORGE_NO_*) so both packages speak the same
+ * language: an unimplemented capability is a failure, never a stub success.
+ */
+
+/** Closed set of typed MACP capability error codes. */
+export const MACP_ERROR_CODES = [
+  'MACP_NOT_IMPLEMENTED',
+  'MACP_NO_COMMAND',
+  'MACP_NO_REVIEWER',
+  'MACP_NO_CI_PIPELINE',
+  'MACP_NO_PROVIDER',
+  'MACP_AUTHORITY_REQUIRED',
+] as const;
+
+/** Raised when a required capability is missing and execution must fail closed. */
+export class MACPCapabilityError extends Error {
+  /** Typed error code from the closed MACP_ERROR_CODES set. */
+  readonly code: MacpErrorCode;
+  /** The missing capability, e.g. `ci-provider`, `task-persistence`, `command`. */
+  readonly capability: string;
+
+  constructor(code: MacpErrorCode, capability: string, message: string) {
+    super(message);
+    this.name = 'MACPCapabilityError';
+    this.code = code;
+    this.capability = capability;
+  }
+}

packages/macp/src/gate-runner.spec.ts

@@ -0,0 +1,429 @@
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
+import { afterEach, beforeEach, describe, expect, it } from 'vitest';
+
+import { countAIFindings, normalizeGate, runGate, runGates } from './gate-runner.js';
+
+function makeTmpDir(): string {
+  return fs.mkdtempSync(path.join(os.tmpdir(), 'macp-gate-'));
+}
+
+describe('normalizeGate', () => {
+  it('normalizes a string to mechanical gate', () => {
+    expect(normalizeGate('echo test')).toEqual({
+      command: 'echo test',
+      type: 'mechanical',
+      fail_on: 'blocker',
+    });
+  });
+
+  it('normalizes an object gate with defaults', () => {
+    expect(normalizeGate({ command: 'lint' })).toEqual({
+      command: 'lint',
+      type: 'mechanical',
+      fail_on: 'blocker',
+    });
+  });
+
+  it('preserves explicit type and fail_on', () => {
+    expect(normalizeGate({ command: 'review', type: 'ai-review', fail_on: 'any' })).toEqual({
+      command: 'review',
+      type: 'ai-review',
+      fail_on: 'any',
+    });
+  });
+
+  it('handles non-string/non-object input', () => {
+    expect(normalizeGate(42)).toEqual({ command: '', type: 'mechanical', fail_on: 'blocker' });
+    expect(normalizeGate(null)).toEqual({ command: '', type: 'mechanical', fail_on: 'blocker' });
+  });
+});
+
+describe('countAIFindings', () => {
+  it('returns zeros for non-object', () => {
+    expect(countAIFindings(null)).toEqual({ blockers: 0, total: 0 });
+    expect(countAIFindings('string')).toEqual({ blockers: 0, total: 0 });
+    expect(countAIFindings([])).toEqual({ blockers: 0, total: 0 });
+  });
+
+  it('counts from stats block', () => {
+    const output = { stats: { blockers: 2, should_fix: 3, suggestions: 1 } };
+    expect(countAIFindings(output)).toEqual({ blockers: 2, total: 6 });
+  });
+
+  it('counts from findings array when stats has no blockers', () => {
+    const output = {
+      stats: { blockers: 0 },
+      findings: [{ severity: 'blocker' }, { severity: 'warning' }, { severity: 'blocker' }],
+    };
+    expect(countAIFindings(output)).toEqual({ blockers: 2, total: 3 });
+  });
+
+  it('uses stats blockers over findings array when stats has blockers', () => {
+    const output = {
+      stats: { blockers: 5 },
+      findings: [{ severity: 'blocker' }, { severity: 'warning' }],
+    };
+    // stats.blockers = 5, total from stats = 5+0+0 = 5, findings not used for total since stats total is non-zero
+    expect(countAIFindings(output)).toEqual({ blockers: 5, total: 5 });
+  });
+
+  it('counts findings length as total when stats has zero total', () => {
+    const output = {
+      findings: [{ severity: 'warning' }, { severity: 'info' }],
+    };
+    expect(countAIFindings(output)).toEqual({ blockers: 0, total: 2 });
+  });
+});
+
+describe('runGate', () => {
+  let tmp: string;
+  let logPath: string;
+
+  beforeEach(() => {
+    tmp = makeTmpDir();
+    logPath = path.join(tmp, 'gate.log');
+  });
+
+  afterEach(() => {
+    fs.rmSync(tmp, { recursive: true, force: true });
+  });
+
+  it('passes mechanical gate on exit 0', () => {
+    const result = runGate('echo hello', tmp, logPath, 30);
+    expect(result.passed).toBe(true);
+    expect(result.exit_code).toBe(0);
+    expect(result.type).toBe('mechanical');
+    expect(result.output).toContain('hello');
+  });
+
+  it('fails mechanical gate on non-zero exit', () => {
+    const result = runGate('exit 1', tmp, logPath, 30);
+    expect(result.passed).toBe(false);
+    expect(result.exit_code).toBe(1);
+  });
+
+  it('ci-pipeline fails closed without a CI provider (no placeholder pass)', () => {
+    const result = runGate({ command: 'anything', type: 'ci-pipeline' }, tmp, logPath, 30);
+    expect(result.passed).toBe(false);
+    expect(result.status).toBe('capability_failure');
+    expect(result.capability_code).toBe('MACP_NO_CI_PIPELINE');
+    expect(result.type).toBe('ci-pipeline');
+    expect(result.output).not.toBe('CI pipeline gate placeholder');
+  });
+
+  it('empty command is a typed capability failure, never a pass', () => {
+    const result = runGate({ command: '' }, tmp, logPath, 30);
+    expect(result.passed).toBe(false);
+    expect(result.status).toBe('capability_failure');
+    expect(result.capability_code).toBe('MACP_NO_COMMAND');
+  });
+
+  it('ai-review gate parses JSON output', () => {
+    const json = JSON.stringify({ stats: { blockers: 0, should_fix: 1 } });
+    const result = runGate({ command: `echo '${json}'`, type: 'ai-review' }, tmp, logPath, 30);
+    expect(result.passed).toBe(true);
+    expect(result.blockers).toBe(0);
+    expect(result.findings).toBe(1);
+  });
+
+  it('ai-review gate fails on blockers', () => {
+    const json = JSON.stringify({ stats: { blockers: 2 } });
+    const result = runGate({ command: `echo '${json}'`, type: 'ai-review' }, tmp, logPath, 30);
+    expect(result.passed).toBe(false);
+    expect(result.blockers).toBe(2);
+  });
+
+  it('ai-review gate with fail_on=any fails on any findings', () => {
+    const json = JSON.stringify({ stats: { blockers: 0, should_fix: 1 } });
+    const result = runGate(
+      { command: `echo '${json}'`, type: 'ai-review', fail_on: 'any' },
+      tmp,
+      logPath,
+      30,
+    );
+    expect(result.passed).toBe(false);
+    expect(result.fail_on).toBe('any');
+  });
+
+  it('ai-review gate fails on invalid JSON output', () => {
+    const result = runGate({ command: 'echo "not json"', type: 'ai-review' }, tmp, logPath, 30);
+    expect(result.passed).toBe(false);
+    expect(result.parse_error).toBeDefined();
+  });
+
+  it('writes to log file', () => {
+    runGate('echo logged', tmp, logPath, 30);
+    const log = fs.readFileSync(logPath, 'utf-8');
+    expect(log).toContain('COMMAND: echo logged');
+    expect(log).toContain('logged');
+    expect(log).toContain('EXIT:');
+  });
+});
+
+describe('runGates', () => {
+  let tmp: string;
+  let logPath: string;
+  let eventsPath: string;
+
+  beforeEach(() => {
+    tmp = makeTmpDir();
+    logPath = path.join(tmp, 'gates.log');
+    eventsPath = path.join(tmp, 'events.ndjson');
+  });
+
+  afterEach(() => {
+    fs.rmSync(tmp, { recursive: true, force: true });
+  });
+
+  it('runs multiple gates and returns results', () => {
+    const { allPassed, gateResults } = runGates(
+      ['echo one', 'echo two'],
+      tmp,
+      logPath,
+      30,
+      eventsPath,
+      'task-1',
+    );
+    expect(allPassed).toBe(true);
+    expect(gateResults).toHaveLength(2);
+  });
+
+  it('reports failure when any gate fails', () => {
+    const { allPassed, gateResults } = runGates(
+      ['echo ok', 'exit 1'],
+      tmp,
+      logPath,
+      30,
+      eventsPath,
+      'task-2',
+    );
+    expect(allPassed).toBe(false);
+    expect(gateResults[0]!.passed).toBe(true);
+    expect(gateResults[1]!.passed).toBe(false);
+  });
+
+  it('emits events for each gate', () => {
+    runGates(['echo test'], tmp, logPath, 30, eventsPath, 'task-3');
+    const events = fs
+      .readFileSync(eventsPath, 'utf-8')
+      .trim()
+      .split('\n')
+      .map((l) => JSON.parse(l));
+    expect(events).toHaveLength(2); // started + passed
+    expect(events[0].event_type).toBe('rail.check.started');
+    expect(events[1].event_type).toBe('rail.check.passed');
+  });
+
+  it('does not silently skip gates with empty command — they become capability failures', () => {
+    const { gateResults, allPassed, state } = runGates(
+      [{ command: '', type: 'mechanical' }, 'echo real'],
+      tmp,
+      logPath,
+      30,
+      eventsPath,
+      'task-4',
+    );
+    expect(gateResults).toHaveLength(2);
+    expect(gateResults[0]!.status).toBe('capability_failure');
+    expect(gateResults[1]!.status).toBe('passed');
+    expect(allPassed).toBe(false);
+    expect(state).toBe('capability_failure');
+  });
+
+  it('does not skip ci-pipeline even with empty command — typed capability failure', () => {
+    const { gateResults, allPassed, state } = runGates(
+      [{ command: '', type: 'ci-pipeline' }],
+      tmp,
+      logPath,
+      30,
+      eventsPath,
+      'task-5',
+    );
+    expect(gateResults).toHaveLength(1);
+    expect(gateResults[0]!.passed).toBe(false);
+    expect(gateResults[0]!.status).toBe('capability_failure');
+    expect(allPassed).toBe(false);
+    expect(state).toBe('capability_failure');
+  });
+
+  it('emits failed event with correct message', () => {
+    runGates(['exit 42'], tmp, logPath, 30, eventsPath, 'task-6');
+    const events = fs
+      .readFileSync(eventsPath, 'utf-8')
+      .trim()
+      .split('\n')
+      .map((l) => JSON.parse(l));
+    const failEvent = events.find(
+      (e: Record<string, unknown>) => e.event_type === 'rail.check.failed',
+    );
+    expect(failEvent).toBeDefined();
+    expect(failEvent.message).toContain('Gate failed (');
+  });
+});
+
+/**
+ * RI-N2 / SDLC-D-035 fail-closed controls for the MACP gate runner.
+ *
+ * Invariant under test: `passed: true` occurs ONLY when a gate really executed
+ * and really exited green (`status === 'passed'`). Absent capabilities,
+ * manual sign-offs, and simulated runs are typed distinctly and can never
+ * make the aggregate `passed`.
+ */
+describe('gate-runner fail-closed (RI-N2)', () => {
+  let tmpDir: string;
+  let logPath: string;
+  let eventsPath: string;
+
+  beforeEach(() => {
+    tmpDir = makeTmpDir();
+    logPath = path.join(tmpDir, 'gate.log');
+    eventsPath = path.join(tmpDir, 'events.ndjson');
+  });
+
+  afterEach(() => {
+    fs.rmSync(tmpDir, { recursive: true, force: true });
+  });
+
+  function run(gates: unknown[], options?: { simulate?: boolean }) {
+    return runGates(gates, tmpDir, logPath, 10, eventsPath, 'spec-task', options);
+  }
+
+  // ─── positive controls ───────────────────────────────────────────────────
+
+  it('a really-executed green command gate still passes', () => {
+    const result = run([{ command: 'exit 0', type: 'mechanical' }]);
+    expect(result.gateResults[0]!.status).toBe('passed');
+    expect(result.gateResults[0]!.passed).toBe(true);
+    expect(result.allPassed).toBe(true);
+    expect(result.state).toBe('passed');
+  });
+
+  it('explicit simulate completes and types every result simulated', () => {
+    const result = run([{ command: 'exit 0', type: 'mechanical' }, 'echo hello'], {
+      simulate: true,
+    });
+    expect(result.gateResults).toHaveLength(2);
+    for (const gate of result.gateResults) {
+      expect(gate.status).toBe('simulated');
+      expect(gate.passed).toBe(false);
+    }
+    expect(result.state).toBe('simulated');
+  });
+
+  it('a really-executed red command gate fails with typed status failed', () => {
+    const result = run([{ command: 'exit 3', type: 'mechanical' }]);
+    expect(result.gateResults[0]!.status).toBe('failed');
+    expect(result.gateResults[0]!.passed).toBe(false);
+    expect(result.allPassed).toBe(false);
+    expect(result.state).toBe('failed');
+  });
+
+  // ─── negative controls — each asserts typed status AND aggregate not passed ──
+
+  it('an empty-command gate is a capability_failure, not skipped and not passed', () => {
+    const result = run([{ command: '', type: 'mechanical' }]);
+    // runGates must not silently skip it — it produces a typed result
+    expect(result.gateResults).toHaveLength(1);
+    const gate = result.gateResults[0]!;
+    expect(gate.status).toBe('capability_failure');
+    expect(gate.capability_code).toBe('MACP_NO_COMMAND');
+    expect(gate.passed).toBe(false);
+    // aggregate is not passed
+    expect(result.allPassed).toBe(false);
+    expect(result.state).toBe('capability_failure');
+    expect(result.state).not.toBe('passed');
+  });
+
+  it('a commandless ai-review gate is a typed MACP_NO_REVIEWER capability_failure', () => {
+    const result = run([{ command: '', type: 'ai-review' }]);
+    expect(result.gateResults[0]!.status).toBe('capability_failure');
+    expect(result.gateResults[0]!.capability_code).toBe('MACP_NO_REVIEWER');
+    expect(result.allPassed).toBe(false);
+    expect(result.state).not.toBe('passed');
+  });
+
+  it('a ci-pipeline gate without a provider implementation is a capability_failure, never a placeholder pass', () => {
+    const result = run([{ command: '', type: 'ci-pipeline' }]);
+    const gate = result.gateResults[0]!;
+    expect(gate.status).toBe('capability_failure');
+    expect(gate.capability_code).toBe('MACP_NO_CI_PIPELINE');
+    expect(gate.passed).toBe(false);
+    // the old false-success placeholder must be gone
+    expect(gate.output).not.toBe('CI pipeline gate placeholder');
+    expect(result.allPassed).toBe(false);
+    expect(result.state).not.toBe('passed');
+  });
+
+  it('a ci-pipeline gate fails closed even alongside an otherwise green run', () => {
+    const result = run(['exit 0', { type: 'ci-pipeline', command: 'fake-ci' }]);
+    expect(result.gateResults[1]!.status).toBe('capability_failure');
+    expect(result.gateResults[0]!.status).toBe('passed');
+    expect(result.allPassed).toBe(false);
+    expect(result.state).toBe('capability_failure');
+  });
+
+  it('a manual gate with no automation enters typed waiting — neither pass nor fail', () => {
+    const result = run([{ type: 'manual' }]);
+    const gate = result.gateResults[0]!;
+    expect(gate.status).toBe('waiting');
+    expect(gate.passed).toBe(false);
+    expect(gate.exit_code).toBe(0);
+    // aggregate is not passed while any gate is waiting
+    expect(result.allPassed).toBe(false);
+    expect(result.state).toBe('waiting');
+    expect(result.state).not.toBe('passed');
+  });
+
+  it('a simulated result can never make the aggregate passed', () => {
+    const result = run(['exit 0', 'exit 0'], { simulate: true });
+    expect(result.gateResults.every((g) => g.status === 'simulated')).toBe(true);
+    expect(result.allPassed).toBe(false);
+    expect(result.state).toBe('simulated');
+    expect(result.state).not.toBe('passed');
+  });
+
+  it('waiting dominates an otherwise green aggregate', () => {
+    const result = run(['exit 0', { type: 'manual' }]);
+    expect(result.allPassed).toBe(false);
+    expect(result.state).toBe('waiting');
+  });
+});
+
+describe('runGate fail-closed (RI-N2)', () => {
+  let tmpDir: string;
+  let logPath: string;
+
+  beforeEach(() => {
+    tmpDir = makeTmpDir();
+    logPath = path.join(tmpDir, 'gate.log');
+  });
+
+  afterEach(() => {
+    fs.rmSync(tmpDir, { recursive: true, force: true });
+  });
+
+  it('simulate: true returns a typed simulated result without executing', () => {
+    const result = runGate('this-command-does-not-exist-xyz', tmpDir, logPath, 10, {
+      simulate: true,
+    });
+    expect(result.status).toBe('simulated');
+    expect(result.passed).toBe(false);
+    expect(result.exit_code).toBe(0);
+  });
+
+  it('normal mode executes for real and types a green gate passed', () => {
+    const result = runGate('echo ok', tmpDir, logPath, 10);
+    expect(result.status).toBe('passed');
+    expect(result.passed).toBe(true);
+    expect(result.output).toContain('ok');
+  });
+
+  it('a bare string gate normalizes to mechanical and executes', () => {
+    const result = runGate('exit 7', tmpDir, logPath, 10);
+    expect(result.type).toBe('mechanical');
+    expect(result.status).toBe('failed');
+    expect(result.passed).toBe(false);
+  });
+});

packages/macp/src/gate-runner.ts

@@ -4,7 +4,20 @@ import { dirname } from 'node:path';
 
 import { emitEvent } from './event-emitter.js';
 import { nowISO } from './event-emitter.js';
-import type { GateResult } from './types.js';
+import type { GateResult, GateStatus, RunGatesResult } from './types.js';
+
+/** Typed reason stamped on every simulated gate result. */
+export const SIMULATED_GATE_REASON =
+  'simulated execution (explicit simulate opt-in): gate was not evaluated by a real implementation';
+
+/** Options for gate execution (RI-N2 fail-closed / explicit simulation). */
+export interface RunGateOptions {
+  /**
+   * Explicit caller opt-in to simulation. Simulated gates are NOT executed;
+   * every result is typed `simulated` and never satisfies anything.
+   */
+  simulate?: boolean;
+}
 
 export interface NormalizedGate {
   command: string;
@@ -103,36 +116,91 @@ export function countAIFindings(parsedOutput: unknown): { blockers: number; tota
   return { blockers, total };
 }
 
+function simulatedResult(gateEntry: NormalizedGate): GateResult {
+  return {
+    command: gateEntry.command,
+    exit_code: 0,
+    type: gateEntry.type,
+    output: SIMULATED_GATE_REASON,
+    timed_out: false,
+    passed: false,
+    status: 'simulated',
+    reason: SIMULATED_GATE_REASON,
+  };
+}
+
+function capabilityFailureResult(
+  gateEntry: NormalizedGate,
+  code: GateResult['capability_code'],
+  reason: string,
+): GateResult {
+  return {
+    command: gateEntry.command,
+    exit_code: 1,
+    type: gateEntry.type,
+    output: '',
+    timed_out: false,
+    passed: false,
+    status: 'capability_failure',
+    capability_code: code,
+    reason,
+  };
+}
+
+function waitingResult(gateEntry: NormalizedGate, reason: string): GateResult {
+  return {
+    command: gateEntry.command,
+    exit_code: 0,
+    type: gateEntry.type,
+    output: '',
+    timed_out: false,
+    passed: false,
+    status: 'waiting',
+    capability_code: 'MACP_AUTHORITY_REQUIRED',
+    reason,
+  };
+}
+
 export function runGate(
   gate: unknown,
   cwd: string,
   logPath: string,
   timeoutSec: number,
+  options: RunGateOptions = {},
 ): GateResult {
   const gateEntry = normalizeGate(gate);
   const gateType = gateEntry.type;
   const command = gateEntry.command;
 
+  // Explicit simulation only: never executes, typed simulated, never satisfying.
+  if (options.simulate) {
+    return simulatedResult(gateEntry);
+  }
+
+  // Fail closed: no CI provider implementation exists in @mosaicstack/macp,
+  // so a ci-pipeline gate is an absent capability — never a placeholder pass.
   if (gateType === 'ci-pipeline') {
-    return {
-      command,
-      exit_code: 0,
-      type: gateType,
-      output: 'CI pipeline gate placeholder',
-      timed_out: false,
-      passed: true,
-    };
+    return capabilityFailureResult(
+      gateEntry,
+      'MACP_NO_CI_PIPELINE',
+      `ci-pipeline gate '${gateEntry.command || gateType}' has no CI provider implementation wired — refusing placeholder pass`,
+    );
   }
 
   if (!command) {
-    return {
-      command: '',
-      exit_code: 0,
-      type: gateType,
-      output: '',
-      timed_out: false,
-      passed: true,
-    };
+    // A manual gate with no automation waits for human sign-off: not pass, not fail.
+    if (gateType === 'manual') {
+      return waitingResult(
+        gateEntry,
+        `manual gate has no automation — waiting for human sign-off (type: ${gateType})`,
+      );
+    }
+    // Any other commandless gate is an absent capability — never a vacuous pass.
+    return capabilityFailureResult(
+      gateEntry,
+      gateType === 'ai-review' ? 'MACP_NO_REVIEWER' : 'MACP_NO_COMMAND',
+      `gate of type '${gateType}' has no command to execute — refusing empty-command pass`,
+    );
   }
 
   const { exitCode, output, timedOut } = runShell(command, cwd, logPath, timeoutSec);
@@ -143,10 +211,12 @@ export function runGate(
     output,
     timed_out: timedOut,
     passed: false,
+    status: 'failed',
   };
 
   if (gateType !== 'ai-review') {
     result.passed = exitCode === 0;
+    result.status = result.passed ? 'passed' : 'failed';
     return result;
   }
 
@@ -170,6 +240,7 @@ export function runGate(
   } else {
     result.passed = exitCode === 0 && blockers === 0 && !timedOut && parseError === undefined;
   }
+  result.status = result.passed ? 'passed' : 'failed';
 
   result.fail_on = failOn;
   result.blockers = blockers;
@@ -191,16 +262,19 @@ export function runGates(
   timeoutSec: number,
   eventsPath: string,
   taskId: string,
-): { allPassed: boolean; gateResults: GateResult[] } {
-  let allPassed = true;
+  options: RunGateOptions = {},
+): RunGatesResult {
   const gateResults: GateResult[] = [];
+  let hasCapabilityFailure = false;
+  let hasSimulated = false;
+  let hasFailed = false;
+  let hasWaiting = false;
 
   for (const gate of gates) {
     const gateEntry = normalizeGate(gate);
     const gateCmd = gateEntry.command;
-    if (!gateCmd && gateEntry.type !== 'ci-pipeline') continue;
-
     const label = gateCmd || gateEntry.type;
+    // NOTE: no silent skip — every gate produces a typed result (RI-N2).
     emitEvent(
       eventsPath,
       'rail.check.started',
@@ -209,10 +283,10 @@ export function runGates(
       'quality-gate',
       `Running gate: ${label}`,
     );
-    const result = runGate(gate, cwd, logPath, timeoutSec);
+    const result = runGate(gate, cwd, logPath, timeoutSec, options);
     gateResults.push(result);
 
-    if (result.passed) {
+    if (result.status === 'passed') {
       emitEvent(
         eventsPath,
         'rail.check.passed',
@@ -224,7 +298,46 @@ export function runGates(
       continue;
     }
 
-    allPassed = false;
+    if (result.status === 'waiting') {
+      hasWaiting = true;
+      emitEvent(
+        eventsPath,
+        'rail.check.waiting',
+        taskId,
+        'gated',
+        'quality-gate',
+        `Gate waiting: ${label} — ${result.reason ?? 'manual gate awaits sign-off'}`,
+      );
+      continue;
+    }
+
+    if (result.status === 'simulated') {
+      hasSimulated = true;
+      emitEvent(
+        eventsPath,
+        'rail.check.simulated',
+        taskId,
+        'gated',
+        'quality-gate',
+        `Gate simulated (non-satisfying): ${label}`,
+      );
+      continue;
+    }
+
+    if (result.status === 'capability_failure') {
+      hasCapabilityFailure = true;
+      emitEvent(
+        eventsPath,
+        'rail.check.failed',
+        taskId,
+        'gated',
+        'quality-gate',
+        `Gate capability failure (${result.capability_code ?? 'MACP_NO_PROVIDER'}): ${label} — ${result.reason ?? 'required capability is absent'}`,
+      );
+      continue;
+    }
+
+    hasFailed = true;
     let message: string;
     if (result.timed_out) {
       message = `Gate timed out after ${timeoutSec}s: ${label}`;
@@ -236,5 +349,15 @@ export function runGates(
     emitEvent(eventsPath, 'rail.check.failed', taskId, 'gated', 'quality-gate', message);
   }
 
-  return { allPassed, gateResults };
+  const state: GateStatus = hasCapabilityFailure
+    ? 'capability_failure'
+    : hasSimulated
+      ? 'simulated'
+      : hasFailed
+        ? 'failed'
+        : hasWaiting
+          ? 'waiting'
+          : 'passed';
+
+  return { allPassed: state === 'passed', gateResults, state };
 }

packages/macp/src/index.ts

@@ -6,11 +6,13 @@ export type {
   DependsOnPolicy,
   GateType,
   GateFailOn,
+  GateStatus,
   GateEntry,
   Task,
   EventType,
   MACPEvent,
   GateResult,
+  RunGatesResult,
   TaskResult,
   ProviderMeta,
   ProviderRegistry,
@@ -18,6 +20,11 @@ export type {
 
 export { CredentialError } from './types.js';
 
+// Typed fail-closed capability errors (RI-N2, SDLC-D-035)
+export { MACP_ERROR_CODES, MACPCapabilityError } from './errors.js';
+
+export type { MacpErrorCode } from './errors.js';
+
 // Credential resolver
 export {
   DEFAULT_CREDENTIALS_DIR,
@@ -35,9 +42,16 @@ export {
 export type { ResolveCredentialsOptions } from './credential-resolver.js';
 
 // Gate runner
-export { normalizeGate, runShell, countAIFindings, runGate, runGates } from './gate-runner.js';
+export {
+  normalizeGate,
+  runShell,
+  countAIFindings,
+  runGate,
+  runGates,
+  SIMULATED_GATE_REASON,
+} from './gate-runner.js';
 
-export type { NormalizedGate } from './gate-runner.js';
+export type { NormalizedGate, RunGateOptions } from './gate-runner.js';
 
 // Risk-floor (agent reflection loop — diff review classifier)
 export { evaluateRiskFloor, DEFAULT_RISK_THRESHOLD } from './risk-floor.js';

packages/macp/src/types.ts

@@ -1,3 +1,5 @@
+import type { MacpErrorCode } from './errors.js';
+
 /** Task status values. */
 export type TaskStatus = 'pending' | 'running' | 'gated' | 'completed' | 'failed' | 'escalated';
 
@@ -17,7 +19,17 @@ export type DispatchMode = 'yolo' | 'acp' | 'exec';
 export type DependsOnPolicy = 'all' | 'any' | 'all_terminal';
 
 /** Quality gate type. */
-export type GateType = 'mechanical' | 'ai-review' | 'ci-pipeline';
+export type GateType = 'mechanical' | 'ai-review' | 'ci-pipeline' | 'manual';
+
+/**
+ * Typed execution state of a gate — closed set (RI-N2, SDLC-D-035).
+ *
+ * Only `passed` means "really executed and green". `simulated` is produced
+ * exclusively under an explicit simulate opt-in and never satisfies anything.
+ * `capability_failure` means a required executor/provider/command was absent.
+ * `waiting` means a manual gate awaits human sign-off (neither pass nor fail).
+ */
+export type GateStatus = 'passed' | 'failed' | 'simulated' | 'waiting' | 'capability_failure';
 
 /** Gate fail_on mode. */
 export type GateFailOn = 'blocker' | 'any';
@@ -67,7 +79,9 @@ export type EventType =
   | 'task.retry.scheduled'
   | 'rail.check.started'
   | 'rail.check.passed'
-  | 'rail.check.failed';
+  | 'rail.check.failed'
+  | 'rail.check.waiting'
+  | 'rail.check.simulated';
 
 /** Structured event record. */
 export interface MACPEvent {
@@ -88,7 +102,14 @@ export interface GateResult {
   type: string;
   output: string;
   timed_out: boolean;
+  /** Back-compat boolean view — true ONLY when `status === 'passed'`. */
   passed: boolean;
+  /** Typed discriminator — the authoritative gate outcome (RI-N2). */
+  status: GateStatus;
+  /** Typed capability error code, set when `status === 'capability_failure'`. */
+  capability_code?: MacpErrorCode;
+  /** Why a non-executed state (simulated/waiting/capability_failure) was reached. */
+  reason?: string;
   fail_on?: string;
   blockers?: number;
   findings?: number;
@@ -96,6 +117,22 @@ export interface GateResult {
   parse_error?: string;
 }
 
+/**
+ * Aggregate outcome of `runGates` (RI-N2).
+ *
+ * `state` is the typed aggregate: it is `passed` only when every gate really
+ * executed green. A `simulated` result makes the aggregate `simulated` (never
+ * `passed`); a `waiting` manual gate keeps the aggregate `waiting`; a missing
+ * capability makes it `capability_failure`. `allPassed` is exactly
+ * `state === 'passed'`, so a simulated or waiting result can never satisfy a
+ * dependency, acceptance criterion, gate, merge, or release check.
+ */
+export interface RunGatesResult {
+  allPassed: boolean;
+  gateResults: GateResult[];
+  state: GateStatus;
+}
+
 /** Result from a completed task. */
 export interface TaskResult {
   task_id: string;

packages/mosaic/framework/defaults/README.md

@@ -102,7 +102,7 @@ mosaic yolo pi             # Launch Pi in yolo mode
 The launcher:
 
 1. Verifies `~/.config/mosaic` exists
-2. Resolves identity: standalone launches auto-run `mosaic init` when `SOUL.md` is missing; exact roster-owned fleet launches validate name/class, atomically seed only missing `SOUL.md`/`USER.md` from generic `defaults/`, securely consume `USER.md`, and never prompt
+2. Verifies `SOUL.md` exists (auto-runs `mosaic init` if missing)
 3. Injects `AGENTS.md` into the runtime
 4. Forwards all arguments to the runtime CLI
 

packages/mosaic/framework/fleet/README.md

@@ -12,6 +12,33 @@ The default tmux socket is `mosaic-fleet` so fleet commands do not touch the
 default tmux server. The roster is the desired-state authority; generated environment files are
 rebuildable projections, never a second source of configuration.
 
+## Brain-home split (fleet state vs framework templates)
+
+When a mosaic-brain clone is present, fleet **state** resolves from the brain
+home while framework templates and dispatch state stay in the config home
+(three-tree model, canon `docs/STRUCTURE-CANON.md` §2):
+
+| Path                                                                            | Without brain (legacy)                | With brain                     |
+| ------------------------------------------------------------------------------- | ------------------------------------- | ------------------------------ |
+| `fleet/agents/<seat>.env.*`                                                     | `~/.config/mosaic/fleet/agents/`      | `~/.mosaic/fleet/agents/`      |
+| `fleet/roles.local/` (overrides)                                                | `~/.config/mosaic/fleet/roles.local/` | `~/.mosaic/fleet/roles.local/` |
+| `fleet/profiles/` (working copies)                                              | `~/.config/mosaic/fleet/profiles/`    | `~/.mosaic/fleet/profiles/`    |
+| `fleet/roster.yaml`, `fleet/roles/` (baseline), `fleet/run/`, `fleet/services/` | `~/.config/mosaic/fleet/…`            | unchanged (config home)        |
+
+Activation (`packages/mosaic/src/fleet/brain-home.ts`, mirrored in
+`tools/fleet/start-agent-session.sh`):
+
+1. `MOSAIC_BRAIN_HOME` env var — explicit, always wins.
+2. Canonical `~/.mosaic` — adopted only when `MOSAIC_HOME` is the default
+   `~/.config/mosaic` AND `~/.mosaic/fleet/agents` exists. Custom
+   `--mosaic-home` values (tests, sandboxes, canaries) never adopt, keeping
+   them hermetic.
+3. Otherwise the config home (legacy single-tree behavior).
+
+Seat env dirs under a brain are subject to the same privacy boundary (0700
+dirs, 0600 files); `.env.generated` files are structure-valuable and tracked
+in the brain repo, hand-maintained `.env`/`.env.local` stay ignored and private.
+
 ## Examples
 
 - `examples/minimal.yaml` starts one local canary slot.

packages/mosaic/framework/tools/_scripts/mosaic-doctor

@@ -51,6 +51,8 @@ fix() { fix_count=$((fix_count + 1)); echo "[FIX] $*"; }
 
 warn_count=0
 warn() { warn_count=$((warn_count + 1)); echo "[WARN] $*"; }
+note() { echo "[NOTE] $*"; return 0; }
+
 pass() {
   if [[ $VERBOSE -eq 1 ]]; then
     echo "[OK] $*"
@@ -255,6 +257,80 @@ fleet_declared_transport() {
   printf '%s\n' "${declared:-tmux}"
 }
 
+# Brain-home fleet-state resolution (#1298; canon STRUCTURE-CANON §2).
+#
+# Seat launch envs, roles.local overrides, and profile working copies resolve
+# from the brain home when one is active; roster, baseline roles, run/, and
+# services stay under MOSAIC_HOME. This check surfaces which tree fleet state
+# resolves from and the drift a launch would otherwise hit at runtime:
+#
+# - a stale MOSAIC_BRAIN_HOME pointing at a directory with no fleet/agents is a
+#   misconfiguration the resolver honors (explicit wins) — warn, don't pass;
+# - a symlinked brain or agents dir defeats the managed-directory boundary;
+# - a group/world-readable agents dir violates the 0700 projection boundary;
+# - env files left in the config-home tree while a brain is active are split
+#   state — the write path rejects NEW split writes, but nothing would ever
+#   tell the operator the old files are stranded.
+resolve_brain_home() {
+  local explicit="${MOSAIC_BRAIN_HOME:-}"
+  if [[ -n "$(printf '%s' "$explicit" | tr -d '[:space:]')" ]]; then
+    printf '%s' "$explicit"
+    return
+  fi
+  if [[ "$(cd "$MOSAIC_HOME" 2>/dev/null && pwd -P)" == "$HOME/.config/mosaic" \
+     && -d "$HOME/.mosaic/fleet/agents" ]]; then
+    printf '%s' "$HOME/.mosaic"
+    return
+  fi
+  printf '%s' "$MOSAIC_HOME"
+}
+
+check_brain_home() {
+  local brain agents mode
+  brain="$(resolve_brain_home)"
+
+  if [[ "$brain" == "$MOSAIC_HOME" ]]; then
+    # Implicit-path greenfield case (#1288 comment 23133, fred's trace): nothing
+    # in product code creates ~/.mosaic/fleet/agents — the first fleet write
+    # resolves legacy (generated-env-boundary resolves before creating) and
+    # then manufactures the evidence that keeps the host legacy. On a host with
+    # ~/.mosaic but no fleet/agents, the three operator checks all agree and all
+    # point the wrong way; this doctor is the only one that can disagree, so it
+    # must say it — as a note, not a warn: nothing is broken yet.
+    if [[ "$(cd "$MOSAIC_HOME" 2>/dev/null && pwd -P)" == "$HOME/.config/mosaic" \
+       && -d "$HOME/.mosaic" && ! -d "$HOME/.mosaic/fleet/agents" ]]; then
+      note "Fleet state home: $MOSAIC_HOME (legacy). NOTE: ~/.mosaic exists but carries no fleet/agents — the first 'mosaic fleet regen' on this host locks in the legacy tree. Create ~/.mosaic/fleet/agents first to adopt the brain."
+      return
+    fi
+    pass "Fleet state home: $MOSAIC_HOME (legacy single-tree; no brain adopted)"
+    return
+  fi
+
+  agents="$brain/fleet/agents"
+  if [[ ! -d "$agents" ]]; then
+    warn "Brain home '$brain' has no fleet/agents — seat envs will not resolve from it. Point MOSAIC_BRAIN_HOME at a brain carrying fleet/agents, or unset it."
+    return
+  fi
+  if [[ -L "$brain" || -L "$agents" ]]; then
+    warn "Brain fleet-state path resolves through a symlink ($brain) — the managed-directory boundary requires regular directories."
+    return
+  fi
+
+  mode="$(stat -c '%a' -- "$agents" 2>/dev/null)" || mode=""
+  if [[ -n "$mode" ]] && (( (8#$mode & 8#077) != 0 )); then
+    warn "Brain agents dir '$agents' is group/world-accessible (mode $mode) — the projection boundary requires 0700."
+    return
+  fi
+
+  if [[ -d "$MOSAIC_HOME/fleet/agents" ]] \
+     && ls "$MOSAIC_HOME/fleet/agents/"*.env* >/dev/null 2>&1; then
+    warn "Fleet env files exist in BOTH trees — brain '$brain' is active but '$MOSAIC_HOME/fleet/agents' still carries env files (split state). Migrate them (mosaic fleet regen) and remove the config-home copies."
+    return
+  fi
+
+  pass "Fleet state home: $brain (brain active); roster + templates: $MOSAIC_HOME"
+}
+
 check_fleet_transport() {
   local transport
   transport="$(fleet_declared_transport)"
@@ -273,6 +349,8 @@ check_fleet_transport() {
 
 check_fleet_transport
 
+check_brain_home
+
 # Legacy migration surfaces should no longer contain symlink trees.
 legacy_paths=(
   "$HOME/.claude/agent-guides"

packages/mosaic/framework/tools/_scripts/test-brain-home-check.sh

@@ -0,0 +1,127 @@
+#!/usr/bin/env bash
+# Covers the brain-home fleet-state check in `mosaic-doctor` (#1298 follow-up).
+#
+# The functions are extracted from the shipped script rather than copied here
+# (same discipline as test-fleet-transport-check.sh): a test that carries its
+# own copy of the logic keeps passing after the shipped copy changes.
+# Extraction is by exact function header and a closing brace in column one.
+set -euo pipefail
+
+SCRIPT_DIR=$(cd -- "$(dirname "$0")" && pwd)
+DOCTOR="$SCRIPT_DIR/mosaic-doctor"
+
+fail() {
+  echo "FAIL: $*" >&2
+  exit 1
+}
+
+[ -f "$DOCTOR" ] || fail "missing mosaic-doctor at $DOCTOR"
+
+extract_function() {
+  local name="$1"
+  local extracted
+  extracted=$(sed -n "/^${name}() {/,/^}/p" "$DOCTOR")
+  [ -n "$extracted" ] || fail "could not extract ${name}() from mosaic-doctor — script reshaped?"
+  printf '%s\n' "$extracted"
+}
+
+for fn in resolve_brain_home check_brain_home; do
+  extract_function "$fn" >/dev/null
+done
+
+warn_count=0
+warn() { warn_count=$((warn_count + 1)); echo "[WARN] $*"; }
+pass() { echo "[OK] $*"; return 0; }
+
+eval "$(extract_function resolve_brain_home)"
+eval "$(extract_function check_brain_home)"
+
+ROOT=$(mktemp -d)
+trap 'rm -rf "$ROOT"' EXIT
+
+# note output is neither [OK] nor [WARN] — assert it directly in the case below.
+run_case() {
+  # label, expect (ok|warn|note), then env assignments as arguments.
+  # The check runs under `env` in a subshell, so its warn() also prints a
+  # sentinel the parent counts — a subshell counter would never be visible.
+  local label="$1" expect="$2"
+  shift 2
+  local out warns notes
+  out=$(env "$@" bash -c "warn() { echo \"[WARN] \$*\"; }; note() { echo \"[NOTE] \$*\"; return 0; }; pass() { echo \"[OK] \$*\"; return 0; }; $(extract_function resolve_brain_home); $(extract_function check_brain_home); check_brain_home" 2>&1)
+  warns=$(printf '%s\n' "$out" | grep -c '^\[WARN\]' || true)
+  notes=$(printf '%s\n' "$out" | grep -c '^\[NOTE\]' || true)
+  if [[ "$expect" == ok && "$warns" -eq 0 && "$notes" -eq 0 ]]; then
+    echo "ok - $label"
+  elif [[ "$expect" == warn && "$warns" -gt 0 ]]; then
+    echo "ok - $label (warned)"
+  elif [[ "$expect" == note && "$notes" -gt 0 ]]; then
+    echo "ok - $label (noted)"
+  else
+    echo "output: $out" >&2
+    fail "$label: expected $expect (warns=$warns notes=$notes)"
+  fi
+}
+
+# ── legacy: no brain, custom home never adopts ─────────────────────────────
+mkdir -p "$ROOT/legacy-mosaic/fleet/agents"
+run_case "custom home without brain stays legacy" ok \
+  MOSAIC_HOME="$ROOT/legacy-mosaic" HOME="$ROOT"
+
+# ── healthy brain at the default config home ───────────────────────────────
+mkdir -p "$ROOT/home/.config/mosaic" "$ROOT/home/.mosaic/fleet/agents"
+chmod 700 "$ROOT/home/.mosaic/fleet/agents"
+run_case "default home adopts healthy brain" ok \
+  MOSAIC_HOME="$ROOT/home/.config/mosaic" HOME="$ROOT/home"
+
+# ── explicit MOSAIC_BRAIN_HOME to a brain without fleet/agents → warn ──────
+mkdir -p "$ROOT/brain-noagents/fleet" "$ROOT/config"
+run_case "explicit brain without agents warns" warn \
+  MOSAIC_HOME="$ROOT/config" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-noagents"
+
+# ── explicit MOSAIC_BRAIN_HOME to a healthy brain → ok ─────────────────────
+mkdir -p "$ROOT/brain-ok/fleet/agents" "$ROOT/config2"
+chmod 700 "$ROOT/brain-ok/fleet/agents"
+run_case "explicit healthy brain passes" ok \
+  MOSAIC_HOME="$ROOT/config2" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-ok"
+
+# ── group-readable agents dir → warn (0700 boundary) ───────────────────────
+mkdir -p "$ROOT/brain-loose/fleet/agents" "$ROOT/config3"
+chmod 750 "$ROOT/brain-loose/fleet/agents"
+run_case "group-readable brain agents warns" warn \
+  MOSAIC_HOME="$ROOT/config3" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-loose"
+
+# ── symlinked agents dir → warn (managed-directory boundary) ───────────────
+mkdir -p "$ROOT/brain-link/real-agents" "$ROOT/brain-link/fleet" "$ROOT/config4"
+ln -s "$ROOT/brain-link/real-agents" "$ROOT/brain-link/fleet/agents"
+run_case "symlinked brain agents warns" warn \
+  MOSAIC_HOME="$ROOT/config4" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-link"
+
+# ── split state: envs in BOTH trees → warn ─────────────────────────────────
+mkdir -p "$ROOT/brain-split/fleet/agents" "$ROOT/config5/fleet/agents"
+chmod 700 "$ROOT/brain-split/fleet/agents" "$ROOT/config5/fleet/agents"
+touch "$ROOT/config5/fleet/agents/coder0.env.generated"
+run_case "env files in both trees warns (split state)" warn \
+  MOSAIC_HOME="$ROOT/config5" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-split"
+
+# ── config-home agents dir WITHOUT env files alongside a brain → ok ────────
+mkdir -p "$ROOT/brain-clean/fleet/agents" "$ROOT/config6/fleet/agents"
+chmod 700 "$ROOT/brain-clean/fleet/agents" "$ROOT/config6/fleet/agents"
+run_case "empty config-home agents dir alongside brain passes" ok \
+  MOSAIC_HOME="$ROOT/config6" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-clean"
+
+# ── greenfield brain-without-agents at the default home → note (#1288) ─────
+mkdir -p "$ROOT/gf-home/.config/mosaic/fleet" "$ROOT/gf-home/.mosaic"
+run_case "~/.mosaic without fleet/agents at default home notes the lock-in" note \
+  MOSAIC_HOME="$ROOT/gf-home/.config/mosaic" HOME="$ROOT/gf-home"
+
+# ── no ~/.mosaic at all at the default home → clean pass ─────────────────
+mkdir -p "$ROOT/plain-home/.config/mosaic/fleet"
+run_case "no ~/.mosaic at default home passes silently" ok \
+  MOSAIC_HOME="$ROOT/plain-home/.config/mosaic" HOME="$ROOT/plain-home"
+
+# ── custom (non-default) home with a stray ~/.mosaic → still silent ──────
+mkdir -p "$ROOT/custom-home/fleet/agents" "$ROOT/custom-home/.mosaic"
+run_case "custom home with stray ~/.mosaic stays silent" ok \
+  MOSAIC_HOME="$ROOT/custom-home" HOME="$ROOT/custom-home"
+
+echo "ok - mosaic-doctor brain-home check"

packages/mosaic/framework/tools/fleet/start-agent-session.sh

@@ -80,6 +80,26 @@ safe_path "$MOSAIC_HOME" || fail_env unsafe-path MOSAIC_HOME "$MOSAIC_HOME"
 
 FLEET_DIR="$MOSAIC_HOME/fleet"
 AGENT_ENV_DIR="$FLEET_DIR/agents"
+
+# Brain-home split (canon docs/STRUCTURE-CANON.md §2): seat launch envs live
+# under the brain home's fleet/agents when a brain is active; roster, roles
+# baseline, and runtime state (fleet/run) stay under MOSAIC_HOME.
+# Resolution mirrors packages/mosaic/src/fleet/brain-home.ts:
+#   1. MOSAIC_BRAIN_HOME env (explicit, always wins)
+#   2. ~/.mosaic — adopted only when MOSAIC_HOME is the default config home AND
+#      ~/.mosaic/fleet/agents exists
+#   3. MOSAIC_HOME (legacy single-tree)
+BRAIN_HOME="${MOSAIC_BRAIN_HOME:-}"
+if [ -z "$BRAIN_HOME" ]; then
+  BRAIN_HOME="$MOSAIC_HOME"
+  if [ "$(cd "$MOSAIC_HOME" 2>/dev/null && pwd -P)" = "$HOME/.config/mosaic" ] \
+     && [ -d "$HOME/.mosaic/fleet/agents" ]; then
+    BRAIN_HOME="$HOME/.mosaic"
+  fi
+fi
+if [ "$BRAIN_HOME" != "$MOSAIC_HOME" ]; then
+  AGENT_ENV_DIR="$BRAIN_HOME/fleet/agents"
+fi
 assert_managed_directory "$MOSAIC_HOME"
 assert_managed_directory "$FLEET_DIR"
 assert_private_directory "$AGENT_ENV_DIR"

packages/mosaic/framework/tools/fleet/test-start-agent-session.sh

@@ -167,6 +167,54 @@ if echo "$valid_args" | grep -qF 'bash -c'; then
   fail "launcher constructed a shell command payload"
 fi
 
+# ── Brain-home split (canon §2) ─────────────────────────────────────────
+# When MOSAIC_HOME is the default config home under $HOME and the host carries
+# $HOME/.mosaic/fleet/agents, seat envs resolve from the brain tree; the config
+# home still owns fleet/run (holder-owner) and remains a managed boundary.
+: > "$TMUX_CALLS"
+HOME_BRAIN="$ROOT/brain-home"
+CONFIG_HOME="$HOME_BRAIN/.config/mosaic"
+BRAIN="$HOME_BRAIN/.mosaic"
+mkdir -p "$CONFIG_HOME/fleet/run" "$BRAIN/fleet/agents" "$HOME_BRAIN/work"
+chmod 700 "$CONFIG_HOME" "$CONFIG_HOME/fleet" "$CONFIG_HOME/fleet/run" \
+  "$BRAIN/fleet/agents" "$HOME_BRAIN/work"
+printf '123e4567-e89b-12d3-a456-426614174000\n' > "$CONFIG_HOME/fleet/run/holder-owner"
+chmod 600 "$CONFIG_HOME/fleet/run/holder-owner"
+cat > "$BRAIN/fleet/agents/coder-brain.env.generated" <<EOF
+MOSAIC_AGENT_NAME=coder-brain
+MOSAIC_AGENT_CLASS=code
+MOSAIC_AGENT_RUNTIME=pi
+MOSAIC_AGENT_MODEL=openai-codex/gpt-5.6-sol
+MOSAIC_AGENT_REASONING=high
+MOSAIC_AGENT_TOOL_POLICY=code
+MOSAIC_AGENT_WORKDIR=$HOME_BRAIN/work
+MOSAIC_TMUX_SOCKET=mosaic-test
+EOF
+chmod 600 "$BRAIN/fleet/agents/coder-brain.env.generated"
+install_pane_binaries "$HOME_BRAIN"
+HOME="$HOME_BRAIN" PATH="$FAKE_BIN:$PATH" MOSAIC_TEST_TMUX_CALLS="$TMUX_CALLS" \
+  MOSAIC_TEST_PANE_PID=$$ MOSAIC_TEST_HOME="$HOME_BRAIN" \
+  MOSAIC_TEST_FLEET_OWNER=123e4567-e89b-12d3-a456-426614174000 \
+  MOSAIC_HOME="$CONFIG_HOME" "$START" coder-brain
+brain_args=$(tr '\0' '\n' < "$TMUX_CALLS")
+echo "$brain_args" | grep -qF new-session || fail "brain-home generated projection did not reach tmux"
+echo "$brain_args" | grep -qF 'coder-brain' || fail "brain-home agent env was not the launch source"
+[ -f "$BRAIN/fleet/agents/coder-brain.env.generated" ] || fail "brain generated env vanished"
+
+# Negative control: the SAME default-config-home shape but without
+# ~/.mosaic/fleet/agents — the config-home env tree is used directly (legacy).
+: > "$TMUX_CALLS"
+HOME_NOBRAIN="$ROOT/brainless-home"
+CONFIG_HOME_NOBRAIN="$HOME_NOBRAIN/.config/mosaic"
+write_generated "$CONFIG_HOME_NOBRAIN" "coder-legacy"
+install_pane_binaries "$HOME_NOBRAIN"
+HOME="$HOME_NOBRAIN" PATH="$FAKE_BIN:$PATH" MOSAIC_TEST_TMUX_CALLS="$TMUX_CALLS" \
+  MOSAIC_TEST_PANE_PID=$$ MOSAIC_TEST_HOME="$HOME_NOBRAIN" \
+  MOSAIC_TEST_FLEET_OWNER=123e4567-e89b-12d3-a456-426614174000 \
+  MOSAIC_HOME="$CONFIG_HOME_NOBRAIN" "$START" coder-legacy
+legacy_args=$(tr '\0' '\n' < "$TMUX_CALLS")
+echo "$legacy_args" | grep -qF new-session || fail "legacy single-tree launch regressed"
+
 # The pane must start through an absolute clean-environment boundary. Its
 # runtime command remains an argv vector, but no holder/session environment
 # control variable can pass through the pane command.

packages/mosaic/framework/tools/quality/test-enumeration-exclusions.txt

@@ -39,3 +39,20 @@ packages/mosaic/framework/tools/tmux/test-send-message-verdict.sh | requires rea
 # recorded judgement. These lines ARE that judgement, signed.)
 packages/mosaic/framework/tools/orchestrator/smoke-test.sh | behavior smoke checks for coord continue/run workflows, run manually by orchestrator seats; unmeasured in CI; #1017 burndown
 packages/mosaic/framework/tools/wake/validate-973/microtest-wake-assert.sh | #973 instrument self-test, run as a precondition of the validate-973 evidence procedure rather than as a standing CI suite; #1017 burndown candidate
+
+# --- tools/fleet: precondition is unsatisfiable in the CI image (#1271) ---
+# Signed by fred (sb-it-1-dt, 2026-08-16) at origin/next 476db12.
+# This suite asserts the launcher's behaviour when `mosaic` and `pi` are MISSING.
+# It shims fakes into $FAKE_BIN, but the constructed PANE_PATH always ends in the
+# real system path, so on a host that installs those binaries the missing-binary
+# cases cannot be measured at all. The suite's own guard (line 103) says so and
+# fails rather than reporting a pass it cannot back. That guard is correct.
+# The error was wiring the suite into CI: #1017 (c56483eb) enumerated it and
+# dropped this exclusion, and the CI image provides `pi` in the system path, so
+# it has failed on every pipeline since. Measured 2026-08-16 across pipelines
+# 2444 (#1256), 2438 (#1240) and 2441 (#1017-quality): exactly one FAIL line in
+# each full log, identical, this assertion; control `zzz-not-present-zzz` -> 0.
+# Burn-down and the full measurement are tracked in #1271; unwired by PR #1270.
+# Because test:framework-shell is one && chain and this sat at position 44 of 48,
+# the four suites after it had not run at all since the merge.
+packages/mosaic/framework/tools/fleet/test-start-agent-session.sh | precondition unsatisfiable in the CI image: asserts missing-binary behaviour, but PANE_PATH always ends in the system path and the image provides `pi` there; guard at line 103 fails by design rather than passing unmeasured. Burn down by controlling the tail of PANE_PATH inside the test. NOT by removing `pi` from the image: the CI image installs @earendil-works/[email protected] deliberately (measured in pipeline 2444's test-step log), and other suites depend on that pin. Burn-down tracked in #1271

packages/mosaic/package.json

@@ -24,9 +24,8 @@
     "build": "tsc",
     "lint": "eslint src",
     "typecheck": "tsc --noEmit",
-    "test": "pnpm run test:vitest && pnpm run test:framework-shell",
-    "test:vitest": "pnpm run build && vitest run --passWithNoTests",
-    "test:framework-shell": "bash framework/tools/quality/scripts/check-test-enumeration.sh && bash framework/tools/quality/scripts/test-check-test-enumeration.sh && python3 src/lease-broker/daemon_deadline_unittest.py && python3 src/lease-broker/normative_fragments_unittest.py && python3 src/lease-broker/promotion_binding_unittest.py && python3 src/lease-broker/promotion_trigger_unittest.py && python3 src/lease-broker/receipt_challenge_unittest.py && python3 src/lease-broker/context_recovery_unittest.py && python3 src/lease-broker/recovery_runtime_unittest.py && python3 src/lease-broker/recovery_b1_adversarial_unittest.py && python3 src/lease-broker/receipt_observer_client_unittest.py && python3 src/lease-broker/invariant_r_unittest.py && python3 src/lease-broker/framework_skill_portability_unittest.py && python3 src/mutator-gate/runtime_tools_unittest.py && python3 src/mutator-gate/runtime_launch_guard_unittest.py && python3 src/mutator-gate/version_coupling_unittest.py && python3 framework/tools/lease-broker/check-runtime-launches.py --root ../.. && bash framework/tools/codex/test-pr-diff-context.sh && bash framework/tools/qa/test-deps-preflight.sh && bash framework/tools/git/test-pr-review-gitea-comment.sh && bash framework/tools/git/test-pr-review-repo-host-override.sh && bash framework/tools/git/test-ci-queue-wait-branch-absent.sh && bash framework/tools/git/test-ci-queue-wait-tristate.sh && bash framework/tools/git/test-ci-queue-wait-github-checks.sh && bash framework/tools/git/test-pr-merge-queue-branch.sh && bash framework/tools/git/test-pr-merge-head-pin.sh && bash framework/tools/git/test-pr-merge-message-field.sh && bash framework/tools/git/test-git-credential-mosaic.sh && bash framework/tools/git/test-gitea-token-identity.sh && bash framework/tools/woodpecker/test-terminal-green-contract.sh && bash framework/tools/_scripts/test-install-ordering-guard.sh && bash framework/tools/_scripts/test-mosaic-init-rce.sh && bash framework/tools/tmux/agent-send.test.sh && bash framework/tools/wake/test-wake-store-ack.sh && bash framework/tools/wake/test-wake-store-enqueue-race.sh && bash framework/tools/wake/test-wake-digest-hmac.sh && bash framework/tools/wake/test-wake-digest-quarantine.sh && bash framework/tools/wake/test-wake-detector.sh && bash framework/tools/wake/test-wake-fn-oracle.sh && bash framework/tools/wake/test-wake-reconcile.sh && bash framework/tools/wake/test-wake-beacon.sh && bash framework/tools/wake/test-wake-preimage.sh && bash framework/tools/wake/test-wake-install.sh && bash framework/tools/fleet/test-start-agent-session.sh && bash framework/tools/glpi/test-list-http-status.sh && bash framework/tools/orchestrator/test-board-roll.sh && bash framework/tools/woodpecker/test-ci-wait-exit-matrix.sh && bash framework/tools/_scripts/test-fleet-transport-check.sh"
+    "test": "vitest run --passWithNoTests && pnpm run test:framework-shell",
+    "test:framework-shell": "bash framework/tools/quality/scripts/check-test-enumeration.sh && bash framework/tools/quality/scripts/test-check-test-enumeration.sh && python3 src/lease-broker/daemon_deadline_unittest.py && python3 src/lease-broker/normative_fragments_unittest.py && python3 src/lease-broker/promotion_binding_unittest.py && python3 src/lease-broker/promotion_trigger_unittest.py && python3 src/lease-broker/receipt_challenge_unittest.py && python3 src/lease-broker/context_recovery_unittest.py && python3 src/lease-broker/recovery_runtime_unittest.py && python3 src/lease-broker/recovery_b1_adversarial_unittest.py && python3 src/lease-broker/receipt_observer_client_unittest.py && python3 src/lease-broker/invariant_r_unittest.py && python3 src/lease-broker/framework_skill_portability_unittest.py && python3 src/mutator-gate/runtime_tools_unittest.py && python3 src/mutator-gate/runtime_launch_guard_unittest.py && python3 src/mutator-gate/version_coupling_unittest.py && python3 framework/tools/lease-broker/check-runtime-launches.py --root ../.. && bash framework/tools/codex/test-pr-diff-context.sh && bash framework/tools/qa/test-deps-preflight.sh && bash framework/tools/git/test-pr-review-gitea-comment.sh && bash framework/tools/git/test-pr-review-repo-host-override.sh && bash framework/tools/git/test-ci-queue-wait-branch-absent.sh && bash framework/tools/git/test-ci-queue-wait-tristate.sh && bash framework/tools/git/test-ci-queue-wait-github-checks.sh && bash framework/tools/git/test-pr-merge-queue-branch.sh && bash framework/tools/git/test-pr-merge-head-pin.sh && bash framework/tools/git/test-pr-merge-message-field.sh && bash framework/tools/git/test-git-credential-mosaic.sh && bash framework/tools/git/test-gitea-token-identity.sh && bash framework/tools/woodpecker/test-terminal-green-contract.sh && bash framework/tools/_scripts/test-install-ordering-guard.sh && bash framework/tools/_scripts/test-mosaic-init-rce.sh && bash framework/tools/tmux/agent-send.test.sh && bash framework/tools/wake/test-wake-store-ack.sh && bash framework/tools/wake/test-wake-store-enqueue-race.sh && bash framework/tools/wake/test-wake-digest-hmac.sh && bash framework/tools/wake/test-wake-digest-quarantine.sh && bash framework/tools/wake/test-wake-detector.sh && bash framework/tools/wake/test-wake-fn-oracle.sh && bash framework/tools/wake/test-wake-reconcile.sh && bash framework/tools/wake/test-wake-beacon.sh && bash framework/tools/wake/test-wake-preimage.sh && bash framework/tools/wake/test-wake-install.sh && bash framework/tools/glpi/test-list-http-status.sh && bash framework/tools/orchestrator/test-board-roll.sh && bash framework/tools/woodpecker/test-ci-wait-exit-matrix.sh && bash framework/tools/_scripts/test-fleet-transport-check.sh && bash framework/tools/_scripts/test-brain-home-check.sh"
   },
   "dependencies": {
     "@mosaicstack/brain": "workspace:*",

packages/mosaic/src/commands/compose-contract.spec.ts

@@ -15,7 +15,6 @@ import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { fileURLToPath } from 'node:url';
 import { FileConfigAdapter } from '../config/file-adapter.js';
-import { seedFleetIdentityDefaults } from './fleet-first-start-identity.js';
 import { composeContract } from './launch.js';
 
 /**
@@ -320,7 +319,6 @@ describe('composeContract — overlay composer', () => {
         ].join('\n'),
       );
       process.env['MOSAIC_AGENT_NAME'] = 'exact-self';
-      expect(seedFleetIdentityDefaults(installedHome)).toEqual(['SOUL.md', 'USER.md']);
 
       const composed = composeContract('pi', installedHome);
       expect(composed).toContain(sourceTools);
@@ -334,49 +332,6 @@ describe('composeContract — overlay composer', () => {
     }
   });
 
-  it('refuses a fleet USER.md replacement symlink at the point of composition', () => {
-    mkdirSync(join(fixture.home, 'fleet'), { recursive: true });
-    writeFileSync(
-      join(fixture.home, 'fleet', 'roster.yaml'),
-      [
-        'version: 1',
-        'transport: tmux',
-        'agents:',
-        '  - name: exact-user-seat',
-        '    runtime: pi',
-        '    class: worker',
-        '',
-      ].join('\n'),
-    );
-    process.env['MOSAIC_AGENT_NAME'] = 'exact-user-seat';
-    process.env['MOSAIC_AGENT_CLASS'] = 'worker';
-    writeFileSync(join(fixture.home, 'defaults', 'SOUL.md'), '# Generic soul\n');
-    writeFileSync(join(fixture.home, 'defaults', 'USER.md'), '# Generic user\n');
-    expect(seedFleetIdentityDefaults(fixture.home)).toEqual(['SOUL.md']);
-
-    const userPath = join(fixture.home, 'USER.md');
-    const external = join(fixture.root, 'attacker-user.md');
-    writeFileSync(external, 'UNSAFE-REPLACEMENT-USER-CONTENT\n');
-    rmSync(userPath);
-    symlinkSync(external, userPath);
-
-    expect(() => composeContract('pi', fixture.home)).toThrow(
-      `fleet identity installed is unavailable or unsafe: ${userPath}`,
-    );
-    expect(readFileSync(external, 'utf8')).toBe('UNSAFE-REPLACEMENT-USER-CONTENT\n');
-  });
-
-  it('preserves tolerant standalone composition when optional USER.md is unreadable', () => {
-    const userPath = join(fixture.home, 'USER.md');
-    rmSync(userPath);
-    mkdirSync(userPath);
-
-    const out = composeContract('pi', fixture.home);
-
-    expect(out).toContain(AGENTS);
-    expect(out).not.toContain('# User Profile');
-  });
-
   it.each(['claude', 'codex', 'opencode', 'pi'] as const)(
     'never injects installed TOOLS.md through a target symlink for %s',
     (runtime) => {

packages/mosaic/src/commands/fleet-agent-crud-command.ts

@@ -1,5 +1,6 @@
 import { readFile } from 'node:fs/promises';
 import { join, resolve } from 'node:path';
+import { fleetAgentEnvDir, fleetRolesLocalDir } from '../fleet/brain-home.js';
 import type { Command } from 'commander';
 import {
   executeFleetAgentMutation,
@@ -149,9 +150,9 @@ async function executeCommand(
     request,
     mosaicHome,
     rosterPath,
-    agentEnvDir: join(mosaicHome, 'fleet', 'agents'),
+    agentEnvDir: fleetAgentEnvDir(mosaicHome),
     rolesDir: join(mosaicHome, 'fleet', 'roles'),
-    overrideDir: join(mosaicHome, 'fleet', 'roles.local'),
+    overrideDir: fleetRolesLocalDir(mosaicHome),
     dryRun: forceDryRun || opts.dryRun === true,
     ...(deps.projectionApplier === undefined ? {} : { projectionApplier: deps.projectionApplier }),
   });

packages/mosaic/src/commands/fleet-first-start-identity.spec.ts

@@ -1,182 +0,0 @@
-import {
-  chmodSync,
-  existsSync,
-  mkdirSync,
-  mkdtempSync,
-  lstatSync,
-  readFileSync,
-  readdirSync,
-  rmSync,
-  statSync,
-  symlinkSync,
-  writeFileSync,
-} from 'node:fs';
-import { tmpdir } from 'node:os';
-import { dirname, join } from 'node:path';
-import { afterEach, describe, expect, it } from 'vitest';
-import {
-  linkIdentityContractNoClobber,
-  seedFleetIdentityDefaults,
-} from './fleet-first-start-identity.js';
-
-const roots: string[] = [];
-const DEFAULT_SOUL = '# Generic soul\n';
-const DEFAULT_USER = '# Generic user\n';
-
-function writeFixture(path: string, content: string | Buffer, mode: number = 0o600): void {
-  mkdirSync(dirname(path), { recursive: true, mode: 0o700 });
-  writeFileSync(path, content, { mode });
-  chmodSync(path, mode);
-}
-
-function createMosaicHome(): string {
-  const root = mkdtempSync(join(tmpdir(), 'mosaic-identity-seed-'));
-  roots.push(root);
-  const mosaicHome = join(root, 'home', '.config', 'mosaic');
-  writeFixture(join(mosaicHome, 'defaults', 'SOUL.md'), DEFAULT_SOUL);
-  writeFixture(join(mosaicHome, 'defaults', 'USER.md'), DEFAULT_USER);
-  return mosaicHome;
-}
-
-function temporarySeeds(mosaicHome: string): string[] {
-  return readdirSync(mosaicHome).filter((entry) => entry.includes('.fleet-seed-'));
-}
-
-afterEach((): void => {
-  for (const root of roots.splice(0)) rmSync(root, { recursive: true, force: true });
-});
-
-describe('linkIdentityContractNoClobber', () => {
-  it('returns false and preserves a destination that already exists', () => {
-    const mosaicHome = createMosaicHome();
-    const source = join(mosaicHome, 'source.tmp');
-    const destination = join(mosaicHome, 'destination.md');
-    writeFixture(source, 'candidate\n');
-    writeFixture(destination, 'operator\n');
-
-    expect(linkIdentityContractNoClobber(source, destination)).toBe(false);
-    expect(readFileSync(destination, 'utf8')).toBe('operator\n');
-  });
-
-  it('does not misclassify an unexpected link failure as a concurrent winner', () => {
-    const mosaicHome = createMosaicHome();
-    const missingSource = join(mosaicHome, 'missing.tmp');
-
-    expect(() =>
-      linkIdentityContractNoClobber(missingSource, join(mosaicHome, 'destination.md')),
-    ).toThrow();
-  });
-});
-
-describe('seedFleetIdentityDefaults', () => {
-  it('publishes complete owner-private default snapshots', () => {
-    const mosaicHome = createMosaicHome();
-
-    expect(seedFleetIdentityDefaults(mosaicHome)).toEqual(['SOUL.md', 'USER.md']);
-
-    for (const [entry, expected] of [
-      ['SOUL.md', DEFAULT_SOUL],
-      ['USER.md', DEFAULT_USER],
-    ] as const) {
-      const path = join(mosaicHome, entry);
-      expect(readFileSync(path, 'utf8')).toBe(expected);
-      expect(statSync(path).mode & 0o777).toBe(0o600);
-    }
-    expect(temporarySeeds(mosaicHome)).toEqual([]);
-  });
-
-  it('preserves an existing regular contract byte-for-byte and mode-for-mode', () => {
-    const mosaicHome = createMosaicHome();
-    const customSoul = '# Operator-owned soul\n';
-    writeFixture(join(mosaicHome, 'SOUL.md'), customSoul, 0o640);
-
-    expect(seedFleetIdentityDefaults(mosaicHome)).toEqual(['USER.md']);
-    expect(readFileSync(join(mosaicHome, 'SOUL.md'), 'utf8')).toBe(customSoul);
-    expect(statSync(join(mosaicHome, 'SOUL.md')).mode & 0o777).toBe(0o640);
-  });
-
-  it('is idempotent after both installed contracts exist', () => {
-    const mosaicHome = createMosaicHome();
-
-    expect(seedFleetIdentityDefaults(mosaicHome)).toEqual(['SOUL.md', 'USER.md']);
-    expect(seedFleetIdentityDefaults(mosaicHome)).toEqual([]);
-    expect(temporarySeeds(mosaicHome)).toEqual([]);
-  });
-
-  it('validates every required source before publishing any destination', () => {
-    const mosaicHome = createMosaicHome();
-    const missing = join(mosaicHome, 'defaults', 'USER.md');
-    rmSync(missing);
-
-    expect(() => seedFleetIdentityDefaults(mosaicHome)).toThrow(
-      `fleet identity default is unavailable or unsafe: ${missing}`,
-    );
-    expect(existsSync(join(mosaicHome, 'SOUL.md'))).toBe(false);
-    expect(existsSync(join(mosaicHome, 'USER.md'))).toBe(false);
-  });
-
-  it('fails closed when the configured Mosaic home is not a directory', () => {
-    const root = mkdtempSync(join(tmpdir(), 'mosaic-identity-invalid-home-'));
-    roots.push(root);
-    const mosaicHome = join(root, 'mosaic-home');
-    writeFixture(mosaicHome, 'not a directory\n');
-
-    expect(() => seedFleetIdentityDefaults(mosaicHome)).toThrow(
-      `fleet identity installed is unavailable or unsafe: ${join(mosaicHome, 'SOUL.md')}`,
-    );
-  });
-
-  it('refuses a symlinked default instead of following it', () => {
-    const mosaicHome = createMosaicHome();
-    const source = join(mosaicHome, 'defaults', 'SOUL.md');
-    rmSync(source);
-    symlinkSync(join(mosaicHome, 'defaults', 'USER.md'), source);
-
-    expect(() => seedFleetIdentityDefaults(mosaicHome)).toThrow(
-      `fleet identity default is unavailable or unsafe: ${source}`,
-    );
-    expect(existsSync(join(mosaicHome, 'SOUL.md'))).toBe(false);
-  });
-
-  it('refuses an existing symlinked destination without replacing it', () => {
-    const mosaicHome = createMosaicHome();
-    const destination = join(mosaicHome, 'SOUL.md');
-    symlinkSync(join(mosaicHome, 'defaults', 'SOUL.md'), destination);
-
-    expect(() => seedFleetIdentityDefaults(mosaicHome)).toThrow(
-      `fleet identity installed is unavailable or unsafe: ${destination}`,
-    );
-    expect(lstatSync(destination).isSymbolicLink()).toBe(true);
-    expect(existsSync(join(mosaicHome, 'USER.md'))).toBe(false);
-  });
-
-  it.each(['SOUL.md', 'USER.md'] as const)(
-    'rejects a dangling %s destination before publishing its counterpart',
-    (entry) => {
-      const mosaicHome = createMosaicHome();
-      const destination = join(mosaicHome, entry);
-      const counterpart = join(mosaicHome, entry === 'SOUL.md' ? 'USER.md' : 'SOUL.md');
-      symlinkSync(join(mosaicHome, 'missing-identity-target'), destination);
-
-      expect(existsSync(destination)).toBe(false);
-      expect(lstatSync(destination).isSymbolicLink()).toBe(true);
-      expect(() => seedFleetIdentityDefaults(mosaicHome)).toThrow(
-        `fleet identity installed is unavailable or unsafe: ${destination}`,
-      );
-      expect(lstatSync(destination).isSymbolicLink()).toBe(true);
-      expect(existsSync(counterpart)).toBe(false);
-    },
-  );
-
-  it('rejects an oversized source before publishing a partial identity', () => {
-    const mosaicHome = createMosaicHome();
-    const source = join(mosaicHome, 'defaults', 'USER.md');
-    writeFixture(source, Buffer.alloc(256 * 1024 + 1, 0x61));
-
-    expect(() => seedFleetIdentityDefaults(mosaicHome)).toThrow(
-      `fleet identity default is unavailable or unsafe: ${source}`,
-    );
-    expect(existsSync(join(mosaicHome, 'SOUL.md'))).toBe(false);
-    expect(existsSync(join(mosaicHome, 'USER.md'))).toBe(false);
-  });
-});

packages/mosaic/src/commands/fleet-first-start-identity.ts

@@ -1,120 +0,0 @@
-import { randomBytes } from 'node:crypto';
-import { linkSync, lstatSync, realpathSync, rmSync, writeFileSync } from 'node:fs';
-import { join } from 'node:path';
-import { readRegularFileSecure } from '../fleet/secure-file.js';
-
-const MAX_IDENTITY_CONTRACT_BYTES = 256 * 1024;
-export const FLEET_IDENTITY_DEFAULTS = ['SOUL.md', 'USER.md'] as const;
-
-function isFilesystemError(error: unknown, code: string): boolean {
-  return error instanceof Error && 'code' in error && error.code === code;
-}
-
-/** @internal Publish a complete temporary file without replacing any path. */
-export function linkIdentityContractNoClobber(source: string, destination: string): boolean {
-  try {
-    linkSync(source, destination);
-    return true;
-  } catch (error: unknown) {
-    if (isFilesystemError(error, 'EEXIST')) return false;
-    throw error;
-  }
-}
-
-function unsafeIdentityError(kind: 'default' | 'installed', path: string, error: unknown): Error {
-  const reason = error instanceof Error ? error.message : String(error);
-  return new Error(`fleet identity ${kind} is unavailable or unsafe: ${path} (${reason})`);
-}
-
-function readIdentityContract(
-  mosaicHome: string,
-  path: string,
-  kind: 'default' | 'installed',
-): Buffer {
-  try {
-    return readRegularFileSecure(path, {
-      root: mosaicHome,
-      maxBytes: MAX_IDENTITY_CONTRACT_BYTES,
-    }).content;
-  } catch (error: unknown) {
-    throw unsafeIdentityError(kind, path, error);
-  }
-}
-
-function installedEntryExists(path: string): boolean {
-  try {
-    lstatSync(path);
-    return true;
-  } catch (error: unknown) {
-    if (isFilesystemError(error, 'ENOENT')) return false;
-    throw unsafeIdentityError('installed', path, error);
-  }
-}
-
-/** Secure fleet point-of-use read for a top-level identity contract. */
-export function readInstalledIdentityContractAtPointOfUse(
-  mosaicHome: string,
-  entry: (typeof FLEET_IDENTITY_DEFAULTS)[number],
-): Buffer {
-  const configuredPath = join(mosaicHome, entry);
-  try {
-    // Preserve the launcher's established support for a symlinked Mosaic home,
-    // while pinning this read to the resolved directory. O_NOFOLLOW still
-    // rejects replacement of the identity file itself (or any child ancestor).
-    const canonicalHome = realpathSync(mosaicHome);
-    return readRegularFileSecure(join(canonicalHome, entry), {
-      root: canonicalHome,
-      maxBytes: MAX_IDENTITY_CONTRACT_BYTES,
-    }).content;
-  } catch (error: unknown) {
-    throw unsafeIdentityError('installed', configuredPath, error);
-  }
-}
-
-/**
- * Seed the generic identity base required by unattended fleet launches.
- *
- * Exact seat identity remains roster-owned and is injected later by the
- * runtime composer. Each destination appears atomically through a hard link to
- * a complete owner-private temporary file; a concurrent first seat may win the
- * link without allowing either process to overwrite operator content.
- */
-export function seedFleetIdentityDefaults(mosaicHome: string): string[] {
-  const snapshots = new Map<(typeof FLEET_IDENTITY_DEFAULTS)[number], Buffer>();
-
-  for (const entry of FLEET_IDENTITY_DEFAULTS) {
-    const destination = join(mosaicHome, entry);
-    if (installedEntryExists(destination)) {
-      readIdentityContract(mosaicHome, destination, 'installed');
-      continue;
-    }
-    const source = join(mosaicHome, 'defaults', entry);
-    snapshots.set(entry, readIdentityContract(mosaicHome, source, 'default'));
-  }
-
-  const seeded: string[] = [];
-  for (const [entry, content] of snapshots) {
-    const destination = join(mosaicHome, entry);
-    const temporary = join(
-      mosaicHome,
-      `.${entry}.fleet-seed-${process.pid.toString()}-${randomBytes(6).toString('hex')}`,
-    );
-    let temporaryCreated = false;
-    try {
-      writeFileSync(temporary, content, { flag: 'wx', mode: 0o600 });
-      temporaryCreated = true;
-      if (linkIdentityContractNoClobber(temporary, destination)) {
-        seeded.push(entry);
-      } else {
-        readIdentityContract(mosaicHome, destination, 'installed');
-      }
-    } finally {
-      if (temporaryCreated) rmSync(temporary, { force: true });
-    }
-  }
-
-  for (const entry of FLEET_IDENTITY_DEFAULTS) {
-    readIdentityContract(mosaicHome, join(mosaicHome, entry), 'installed');
-  }
-  return seeded;
-}

packages/mosaic/src/commands/fleet-migration-command.ts

@@ -1,5 +1,6 @@
 import { readFile } from 'node:fs/promises';
 import { join } from 'node:path';
+import { fleetAgentEnvDir, fleetRolesLocalDir } from '../fleet/brain-home.js';
 import type { Command } from 'commander';
 import {
   parseV1MigrationObservations,
@@ -120,11 +121,11 @@ export function registerFleetMigrationCommand(
           observations,
           personaDirs: {
             rolesDir: deps.rolesDir ?? join(mosaicHome, 'fleet', 'roles'),
-            overrideDir: deps.overrideDir ?? join(mosaicHome, 'fleet', 'roles.local'),
+            overrideDir: deps.overrideDir ?? fleetRolesLocalDir(mosaicHome),
           },
           environment: {
             mosaicHome,
-            agentEnvDir: join(mosaicHome, 'fleet', 'agents'),
+            agentEnvDir: fleetAgentEnvDir(mosaicHome),
           },
         });
         printJson(preview);

packages/mosaic/src/commands/fleet-personas.ts

@@ -30,19 +30,21 @@ import { lstat, readFile, readdir, stat } from 'node:fs/promises';
 import { homedir } from 'node:os';
 import { basename, isAbsolute, join, sep } from 'node:path';
 import type { Command } from 'commander';
+import { fleetRolesLocalDir } from '../fleet/brain-home.js';
 
 function defaultMosaicHome(): string {
   return process.env['MOSAIC_HOME'] ?? join(homedir(), '.config', 'mosaic');
 }
 
-/** Baseline persona role contracts (reseeded on update). */
+/** Baseline persona role contracts (reseeded on update; config home — framework). */
 export function defaultRolesDir(mosaicHome = defaultMosaicHome()): string {
   return join(mosaicHome, 'fleet', 'roles');
 }
 
-/** PRESERVE-protected override layer (survives update; wins on merge). */
+/** PRESERVE-protected override layer (survives update; wins on merge).
+ * Brain home (`~/.mosaic/fleet/roles.local`) when a brain is active. */
 export function defaultOverrideDir(mosaicHome = defaultMosaicHome()): string {
-  return join(mosaicHome, 'fleet', 'roles.local');
+  return fleetRolesLocalDir(mosaicHome);
 }
 
 /**

packages/mosaic/src/commands/fleet-profiles.ts

@@ -25,6 +25,7 @@ import { homedir } from 'node:os';
 import { basename, join } from 'node:path';
 import type { Command } from 'commander';
 import YAML from 'yaml';
+import { fleetProfilesDir } from '../fleet/brain-home.js';
 import {
   defaultOverrideDir,
   extractClassesFromDir,
@@ -36,9 +37,10 @@ function defaultMosaicHome(): string {
   return process.env['MOSAIC_HOME'] ?? join(homedir(), '.config', 'mosaic');
 }
 
-/** Directory holding the seeded profile yaml files. */
+/** Directory holding the seeded profile yaml files — brain home when active
+ * (user working copies, committed), else the config home seed. */
 export function defaultProfilesDir(mosaicHome = defaultMosaicHome()): string {
-  return join(mosaicHome, 'fleet', 'profiles');
+  return fleetProfilesDir(mosaicHome);
 }
 
 /** Directory holding the persona role contracts. */

packages/mosaic/src/commands/fleet-regen-command.ts

@@ -3,6 +3,7 @@ import { homedir } from 'node:os';
 import { join, relative, resolve } from 'node:path';
 import type { Command } from 'commander';
 import type { CommandRunner } from './fleet.js';
+import { fleetAgentEnvDir } from '../fleet/brain-home.js';
 import {
   applyPreparedGeneratedAgentEnvironmentProjection,
   prepareGeneratedAgentEnvironmentProjection,
@@ -153,7 +154,7 @@ export async function executeFleetRegen(
   options: FleetRegenOptions,
 ): Promise<FleetRegenResult> {
   const mosaicHome = defaultMosaicHome(deps);
-  const agentEnvDir = join(mosaicHome, 'fleet', 'agents');
+  const agentEnvDir = fleetAgentEnvDir(mosaicHome);
   const rosterPath = join(mosaicHome, 'fleet', 'roster.yaml');
   const readRoster = deps.readRoster ?? defaultReadRoster(deps, mosaicHome);
   const prepare = deps.prepareProjection ?? prepareGeneratedAgentEnvironmentProjection;

packages/mosaic/src/commands/fleet.ts

@@ -13,6 +13,7 @@ import {
 import { randomUUID } from 'node:crypto';
 import { homedir, hostname, userInfo } from 'node:os';
 import { dirname, join, resolve } from 'node:path';
+import { fleetAgentEnvDir } from '../fleet/brain-home.js';
 import { fileURLToPath } from 'node:url';
 import { spawn } from 'node:child_process';
 import * as readline from 'node:readline';
@@ -158,7 +159,7 @@ export function resolveFleetPaths(mosaicHome = defaultMosaicHome()): FleetPaths
     fleetToolsDir: join(mosaicHome, 'tools', 'fleet'),
     tmuxToolsDir: join(mosaicHome, 'tools', 'tmux'),
     systemdUserDir: join(homedir(), '.config', 'systemd', 'user'),
-    agentEnvDir: join(mosaicHome, 'fleet', 'agents'),
+    agentEnvDir: fleetAgentEnvDir(mosaicHome),
   };
 }
 

packages/mosaic/src/commands/launch-first-start.spec.ts

@@ -1,393 +0,0 @@
-import { spawn, spawnSync, type SpawnSyncReturns } from 'node:child_process';
-import {
-  chmodSync,
-  existsSync,
-  mkdirSync,
-  mkdtempSync,
-  readFileSync,
-  readdirSync,
-  rmSync,
-  statSync,
-  symlinkSync,
-  writeFileSync,
-} from 'node:fs';
-import { tmpdir } from 'node:os';
-import { dirname, join } from 'node:path';
-import { fileURLToPath } from 'node:url';
-import { afterEach, describe, expect, it } from 'vitest';
-
-const CLI_PATH = fileURLToPath(new URL('../../dist/cli.js', import.meta.url));
-const DEFAULT_SOUL_PATH = fileURLToPath(
-  new URL('../../framework/defaults/SOUL.md', import.meta.url),
-);
-const DEFAULT_USER_PATH = fileURLToPath(
-  new URL('../../framework/defaults/USER.md', import.meta.url),
-);
-
-interface GreenfieldFixture {
-  readonly root: string;
-  readonly home: string;
-  readonly mosaicHome: string;
-  readonly binDir: string;
-  readonly capturePath: string;
-}
-
-interface AsyncLaunchResult {
-  readonly status: number | null;
-  readonly signal: NodeJS.Signals | null;
-  readonly stdout: string;
-  readonly stderr: string;
-}
-
-const fixtures: string[] = [];
-
-function writeFixture(path: string, content: string, mode: number = 0o600): void {
-  mkdirSync(dirname(path), { recursive: true, mode: 0o700 });
-  writeFileSync(path, content, { encoding: 'utf8', mode });
-  chmodSync(path, mode);
-}
-
-function createGreenfieldFixture(): GreenfieldFixture {
-  const root = mkdtempSync(join(tmpdir(), 'mosaic-first-start-'));
-  fixtures.push(root);
-  const home = join(root, 'home');
-  const mosaicHome = join(home, '.config', 'mosaic');
-  const binDir = join(root, 'bin');
-  const capturePath = join(root, 'runtime-boundary.json');
-
-  mkdirSync(binDir, { recursive: true, mode: 0o700 });
-  writeFixture(join(mosaicHome, 'AGENTS.md'), '# Agent dispatcher\n');
-  writeFixture(join(mosaicHome, 'runtime', 'pi', 'RUNTIME.md'), '# Pi runtime\n');
-  writeFixture(join(mosaicHome, 'defaults', 'SOUL.md'), readFileSync(DEFAULT_SOUL_PATH, 'utf8'));
-  writeFixture(join(mosaicHome, 'defaults', 'USER.md'), readFileSync(DEFAULT_USER_PATH, 'utf8'));
-  writeFixture(
-    join(mosaicHome, 'fleet', 'roster.yaml'),
-    `version: 1
-transport: tmux
-tmux:
-  socket_name: mosaic-fleet
-  holder_session: _holder
-defaults:
-  working_directory: ~
-runtimes:
-  pi:
-    reset_command: /new
-agents:
-  - name: unattended-seat
-    runtime: pi
-    class: worker
-`,
-  );
-  writeFixture(
-    join(mosaicHome, 'tools', 'tmux', 'agent-send.sh'),
-    '#!/usr/bin/env bash\nexit 0\n',
-    0o755,
-  );
-  writeFixture(
-    join(mosaicHome, 'tools', 'lease-broker', 'launch-runtime.py'),
-    `#!/usr/bin/env python3
-import json
-import os
-import pathlib
-import sys
-pathlib.Path(os.environ["MOSAIC_TEST_RUNTIME_CAPTURE"]).write_text(
-    json.dumps({"argv": sys.argv[1:]}), encoding="utf-8"
-)
-`,
-    0o755,
-  );
-  // checkRuntime() must find Pi, while the fake broker boundary prevents this
-  // executable from running or making a provider call.
-  writeFixture(join(binDir, 'pi'), '#!/usr/bin/env bash\nexit 97\n', 0o755);
-
-  return { root, home, mosaicHome, binDir, capturePath };
-}
-
-function launchEnvironment(
-  fixture: GreenfieldFixture,
-  capturePath: string,
-  fleet: boolean = true,
-  agentName: string = 'unattended-seat',
-  agentClass: string = 'worker',
-): NodeJS.ProcessEnv {
-  return {
-    HOME: fixture.home,
-    MOSAIC_HOME: fixture.mosaicHome,
-    ...(fleet
-      ? {
-          MOSAIC_AGENT_NAME: agentName,
-          MOSAIC_AGENT_CLASS: agentClass,
-        }
-      : {}),
-    MOSAIC_TEST_RUNTIME_CAPTURE: capturePath,
-    PATH: `${fixture.binDir}:/usr/bin:/bin`,
-  };
-}
-
-function launchSync(
-  fixture: GreenfieldFixture,
-  options: {
-    readonly capturePath?: string;
-    readonly fleet?: boolean;
-    readonly agentName?: string;
-    readonly agentClass?: string;
-  } = {},
-): SpawnSyncReturns<string> {
-  const capturePath = options.capturePath ?? fixture.capturePath;
-  return spawnSync(process.execPath, [CLI_PATH, 'yolo', 'pi'], {
-    cwd: fixture.root,
-    encoding: 'utf8',
-    input: '',
-    timeout: 10_000,
-    env: launchEnvironment(
-      fixture,
-      capturePath,
-      options.fleet ?? true,
-      options.agentName ?? 'unattended-seat',
-      options.agentClass ?? 'worker',
-    ),
-  });
-}
-
-function launchAsync(fixture: GreenfieldFixture, capturePath: string): Promise<AsyncLaunchResult> {
-  return new Promise<AsyncLaunchResult>((resolve, reject): void => {
-    const child = spawn(process.execPath, [CLI_PATH, 'yolo', 'pi'], {
-      cwd: fixture.root,
-      env: launchEnvironment(fixture, capturePath),
-      stdio: ['pipe', 'pipe', 'pipe'],
-    });
-    let stdout = '';
-    let stderr = '';
-    child.stdout.setEncoding('utf8');
-    child.stderr.setEncoding('utf8');
-    child.stdout.on('data', (chunk: string): void => {
-      stdout += chunk;
-    });
-    child.stderr.on('data', (chunk: string): void => {
-      stderr += chunk;
-    });
-    child.on('error', reject);
-    child.on('close', (status: number | null, signal: NodeJS.Signals | null): void => {
-      resolve({ status, signal, stdout, stderr });
-    });
-    child.stdin.end();
-  });
-}
-
-function outputOf(result: { readonly stdout: string; readonly stderr: string }): string {
-  return `${result.stdout}${result.stderr}`;
-}
-
-function assertPrivateDefaultSeeds(fixture: GreenfieldFixture): void {
-  const soul = join(fixture.mosaicHome, 'SOUL.md');
-  const user = join(fixture.mosaicHome, 'USER.md');
-  expect(readFileSync(soul, 'utf8')).toBe(readFileSync(DEFAULT_SOUL_PATH, 'utf8'));
-  expect(readFileSync(user, 'utf8')).toBe(readFileSync(DEFAULT_USER_PATH, 'utf8'));
-  expect(statSync(soul).mode & 0o777).toBe(0o600);
-  expect(statSync(user).mode & 0o777).toBe(0o600);
-}
-
-function capturedArguments(path: string): string[] {
-  const capture = JSON.parse(readFileSync(path, 'utf8')) as { argv: string[] };
-  return capture.argv;
-}
-
-afterEach((): void => {
-  for (const root of fixtures.splice(0)) {
-    rmSync(root, { recursive: true, force: true });
-  }
-});
-
-describe('fleet unattended first start (#1264)', () => {
-  it('reaches the runtime boundary without a TTY or identity wizard on a clean install', () => {
-    const fixture = createGreenfieldFixture();
-    const result = launchSync(fixture);
-    const output = outputOf(result);
-
-    expect(result.error, output).toBeUndefined();
-    expect(result.status, output).toBe(0);
-    expect(output).toContain('Initialized unattended fleet identity defaults: SOUL.md, USER.md');
-    expect(output).not.toContain('Running setup wizard');
-    expect(output).not.toContain('What would you like to do?');
-    expect(existsSync(fixture.capturePath), output).toBe(true);
-    assertPrivateDefaultSeeds(fixture);
-
-    const argv = capturedArguments(fixture.capturePath);
-    expect(argv).toContain('--runtime');
-    expect(argv.join('\n')).toContain('Agent/session: `unattended-seat`');
-    expect(argv.join('\n')).toContain('Role/class: `worker`');
-  });
-
-  it('preserves existing operator identity bytes without requiring defaults', () => {
-    const fixture = createGreenfieldFixture();
-    const customSoul = '# Operator soul\nNever replace this.\n';
-    const customUser = '# Operator user\nNever replace this either.\n';
-    writeFixture(join(fixture.mosaicHome, 'SOUL.md'), customSoul, 0o640);
-    writeFixture(join(fixture.mosaicHome, 'USER.md'), customUser, 0o600);
-    rmSync(join(fixture.mosaicHome, 'defaults'), { recursive: true, force: true });
-
-    const first = launchSync(fixture);
-    const secondCapture = join(fixture.root, 'runtime-boundary-second.json');
-    const second = launchSync(fixture, { capturePath: secondCapture });
-
-    expect(first.status, outputOf(first)).toBe(0);
-    expect(second.status, outputOf(second)).toBe(0);
-    expect(readFileSync(join(fixture.mosaicHome, 'SOUL.md'), 'utf8')).toBe(customSoul);
-    expect(readFileSync(join(fixture.mosaicHome, 'USER.md'), 'utf8')).toBe(customUser);
-    expect(statSync(join(fixture.mosaicHome, 'SOUL.md')).mode & 0o777).toBe(0o640);
-    expect(existsSync(fixture.capturePath)).toBe(true);
-    expect(existsSync(secondCapture)).toBe(true);
-  });
-
-  it('seeds only the missing identity contract and leaves a custom SOUL byte-exact', () => {
-    const fixture = createGreenfieldFixture();
-    const customSoul = '# Exact custom soul bytes\n';
-    writeFixture(join(fixture.mosaicHome, 'SOUL.md'), customSoul, 0o640);
-
-    const result = launchSync(fixture);
-
-    expect(result.status, outputOf(result)).toBe(0);
-    expect(outputOf(result)).toContain('Initialized unattended fleet identity defaults: USER.md');
-    expect(readFileSync(join(fixture.mosaicHome, 'SOUL.md'), 'utf8')).toBe(customSoul);
-    expect(statSync(join(fixture.mosaicHome, 'SOUL.md')).mode & 0o777).toBe(0o640);
-    expect(readFileSync(join(fixture.mosaicHome, 'USER.md'), 'utf8')).toBe(
-      readFileSync(DEFAULT_USER_PATH, 'utf8'),
-    );
-  });
-
-  it('fails closed without a wizard or partial seed when a required default is missing', () => {
-    const fixture = createGreenfieldFixture();
-    const missingDefault = join(fixture.mosaicHome, 'defaults', 'USER.md');
-    rmSync(missingDefault);
-
-    const result = launchSync(fixture);
-    const output = outputOf(result);
-
-    expect(result.status, output).toBe(1);
-    expect(output).toContain('unattended fleet identity initialization failed');
-    expect(output).toContain(missingDefault);
-    expect(output).not.toContain('Running setup wizard');
-    expect(output).not.toContain('What would you like to do?');
-    expect(existsSync(fixture.capturePath)).toBe(false);
-    expect(existsSync(join(fixture.mosaicHome, 'SOUL.md'))).toBe(false);
-    expect(existsSync(join(fixture.mosaicHome, 'USER.md'))).toBe(false);
-  });
-
-  it('rejects a symlinked identity default without following it or prompting', () => {
-    const fixture = createGreenfieldFixture();
-    const soulDefault = join(fixture.mosaicHome, 'defaults', 'SOUL.md');
-    rmSync(soulDefault);
-    symlinkSync(DEFAULT_SOUL_PATH, soulDefault);
-
-    const result = launchSync(fixture);
-    const output = outputOf(result);
-
-    expect(result.status, output).toBe(1);
-    expect(output).toContain(`fleet identity default is unavailable or unsafe: ${soulDefault}`);
-    expect(output).not.toContain('Running setup wizard');
-    expect(existsSync(fixture.capturePath)).toBe(false);
-  });
-
-  it('refuses an unknown ambient fleet name before seeding or prompting', () => {
-    const fixture = createGreenfieldFixture();
-
-    const result = launchSync(fixture, { agentName: 'not-in-the-roster' });
-    const output = outputOf(result);
-
-    expect(result.status, output).toBe(1);
-    expect(output).toContain('canonical fleet identity is unavailable');
-    expect(output).toContain('Agent "not-in-the-roster" is not in the fleet roster');
-    expect(output).not.toContain('Running setup wizard');
-    expect(existsSync(fixture.capturePath)).toBe(false);
-    expect(existsSync(join(fixture.mosaicHome, 'SOUL.md'))).toBe(false);
-    expect(existsSync(join(fixture.mosaicHome, 'USER.md'))).toBe(false);
-  });
-
-  it('refuses a mismatched ambient fleet class before seeding or prompting', () => {
-    const fixture = createGreenfieldFixture();
-
-    const result = launchSync(fixture, { agentClass: 'reviewer' });
-    const output = outputOf(result);
-
-    expect(result.status, output).toBe(1);
-    expect(output).toContain('Refusing split identity authority');
-    expect(output).not.toContain('Running setup wizard');
-    expect(existsSync(fixture.capturePath)).toBe(false);
-    expect(existsSync(join(fixture.mosaicHome, 'SOUL.md'))).toBe(false);
-    expect(existsSync(join(fixture.mosaicHome, 'USER.md'))).toBe(false);
-  });
-
-  it.each(['', ' ', '\t'])(
-    'refuses explicit blank ambient fleet class %j before seeding',
-    (agentClass: string) => {
-      const fixture = createGreenfieldFixture();
-
-      const result = launchSync(fixture, { agentClass });
-      const output = outputOf(result);
-
-      expect(result.status, output).toBe(1);
-      expect(output).toContain('Refusing split identity authority');
-      expect(output).not.toContain('Running setup wizard');
-      expect(existsSync(fixture.capturePath)).toBe(false);
-      expect(existsSync(join(fixture.mosaicHome, 'SOUL.md'))).toBe(false);
-      expect(existsSync(join(fixture.mosaicHome, 'USER.md'))).toBe(false);
-    },
-  );
-
-  it.each([' unattended-seat', 'unattended-seat ', ''])(
-    'refuses non-exact ambient fleet name %j before seeding',
-    (agentName: string) => {
-      const fixture = createGreenfieldFixture();
-
-      const result = launchSync(fixture, { agentName });
-      const output = outputOf(result);
-
-      expect(result.status, output).toBe(1);
-      expect(output).toContain(
-        'MOSAIC_AGENT_NAME must be a non-empty exact roster name with no surrounding whitespace',
-      );
-      expect(output).not.toContain('Running setup wizard');
-      expect(existsSync(fixture.capturePath)).toBe(false);
-      expect(existsSync(join(fixture.mosaicHome, 'SOUL.md'))).toBe(false);
-      expect(existsSync(join(fixture.mosaicHome, 'USER.md'))).toBe(false);
-    },
-  );
-
-  it('keeps the interactive wizard path for a standalone launch', () => {
-    const fixture = createGreenfieldFixture();
-
-    const result = launchSync(fixture, { fleet: false });
-    const output = outputOf(result);
-
-    expect(result.status, output).toBe(1);
-    expect(output).toContain('[mosaic] SOUL.md not found. Running setup wizard...');
-    expect(output).toContain('What would you like to do?');
-    expect(output).toContain('[mosaic] Setup failed. Run: mosaic wizard');
-    expect(existsSync(fixture.capturePath)).toBe(false);
-    expect(existsSync(join(fixture.mosaicHome, 'SOUL.md'))).toBe(false);
-  });
-
-  it('allows concurrent no-TTY seats to initialize the same defaults without clobber or residue', async () => {
-    const fixture = createGreenfieldFixture();
-    const captures = Array.from({ length: 4 }, (_, index) =>
-      join(fixture.root, `runtime-boundary-${index.toString()}.json`),
-    );
-
-    const results = await Promise.all(
-      captures.map(
-        async (capturePath): Promise<AsyncLaunchResult> => launchAsync(fixture, capturePath),
-      ),
-    );
-
-    for (const result of results) {
-      expect(result.status, outputOf(result)).toBe(0);
-      expect(result.signal, outputOf(result)).toBeNull();
-      expect(outputOf(result)).not.toContain('Running setup wizard');
-    }
-    assertPrivateDefaultSeeds(fixture);
-    expect(captures.every((capturePath) => existsSync(capturePath))).toBe(true);
-    expect(
-      readdirSync(fixture.mosaicHome).filter((entry) => entry.includes('.fleet-seed-')),
-    ).toEqual([]);
-  });
-});

packages/mosaic/src/commands/launch.spec.ts

@@ -349,3 +349,90 @@ describe('registerRuntimeLaunchers — claudex (EXPERIMENTAL overlay)', () => {
     expect(mockExit).not.toHaveBeenCalled();
   });
 });
+
+// ─── Seat harness homes (MOSAIC-D-002, brain-home split) ────────────────────
+
+import { activeSeatDir, seatPersonaOverlay } from './launch.js';
+
+describe('activeSeatDir — per-agent harness home resolution', () => {
+  let root: string;
+  const savedAgentName = process.env['MOSAIC_AGENT_NAME'];
+  const savedBrainHome = process.env['MOSAIC_BRAIN_HOME'];
+
+  beforeEach(() => {
+    root = mkdtempSync(join(tmpdir(), 'mosaic-seat-home-'));
+    delete process.env['MOSAIC_BRAIN_HOME'];
+  });
+
+  afterEach(() => {
+    rmSync(root, { recursive: true, force: true });
+    if (savedAgentName === undefined) {
+      delete process.env['MOSAIC_AGENT_NAME'];
+    } else {
+      process.env['MOSAIC_AGENT_NAME'] = savedAgentName;
+    }
+    if (savedBrainHome !== undefined) {
+      process.env['MOSAIC_BRAIN_HOME'] = savedBrainHome;
+    } else {
+      delete process.env['MOSAIC_BRAIN_HOME'];
+    }
+  });
+
+  it('resolves the seat dir when MOSAIC_BRAIN_HOME carries the seat', () => {
+    const seat = join(root, 'brain', 'fleet', 'agents', 'coder0');
+    mkdirSync(seat, { recursive: true });
+    process.env['MOSAIC_AGENT_NAME'] = 'coder0';
+    process.env['MOSAIC_BRAIN_HOME'] = join(root, 'brain');
+
+    expect(activeSeatDir(join(root, 'config', 'mosaic'))).toBe(seat);
+  });
+
+  it('returns undefined without an agent name (bare launches stay shared)', () => {
+    delete process.env['MOSAIC_AGENT_NAME'];
+    expect(activeSeatDir(join(root, 'config', 'mosaic'))).toBeUndefined();
+  });
+
+  it('returns undefined when the seat dir does not exist in the brain', () => {
+    process.env['MOSAIC_AGENT_NAME'] = 'ghost';
+    process.env['MOSAIC_BRAIN_HOME'] = join(root, 'brain');
+    mkdirSync(join(root, 'brain', 'fleet', 'agents'), { recursive: true });
+
+    expect(activeSeatDir(join(root, 'config', 'mosaic'))).toBeUndefined();
+  });
+
+  it.each(['../escape', 'a/b', '.hidden-start', '', 'spaced name'])(
+    'rejects unsafe agent name %j (path traversal cannot leave the seat store)',
+    (name: string) => {
+      process.env['MOSAIC_AGENT_NAME'] = name;
+      process.env['MOSAIC_BRAIN_HOME'] = join(root, 'brain');
+
+      expect(activeSeatDir(join(root, 'config', 'mosaic'))).toBeUndefined();
+    },
+  );
+
+  it('seatPersonaOverlay renders the seat SOUL.md as an overlay block', () => {
+    const seat = join(root, 'brain', 'fleet', 'agents', 'coder0');
+    mkdirSync(seat, { recursive: true });
+    writeFileSync(join(seat, 'SOUL.md'), '# coder0 — code seat persona\n\nShips tested code.\n');
+    process.env['MOSAIC_AGENT_NAME'] = 'coder0';
+    process.env['MOSAIC_BRAIN_HOME'] = join(root, 'brain');
+
+    const overlay = seatPersonaOverlay(join(root, 'config', 'mosaic'));
+    expect(overlay).toContain('## Seat Persona');
+    expect(overlay).toContain('coder0 — code seat persona');
+  });
+
+  it('seatPersonaOverlay is empty when the seat carries no SOUL.md', () => {
+    const seat = join(root, 'brain', 'fleet', 'agents', 'coder0');
+    mkdirSync(seat, { recursive: true });
+    process.env['MOSAIC_AGENT_NAME'] = 'coder0';
+    process.env['MOSAIC_BRAIN_HOME'] = join(root, 'brain');
+
+    expect(seatPersonaOverlay(join(root, 'config', 'mosaic'))).toBe('');
+  });
+
+  it('seatPersonaOverlay is empty when no agent name is set', () => {
+    delete process.env['MOSAIC_AGENT_NAME'];
+    expect(seatPersonaOverlay(join(root, 'config', 'mosaic'))).toBe('');
+  });
+});

packages/mosaic/src/commands/launch.ts

@@ -19,7 +19,7 @@ import {
 import { createHash, randomBytes } from 'node:crypto';
 import { createRequire } from 'node:module';
 import { homedir, hostname } from 'node:os';
-import { join, dirname } from 'node:path';
+import { join, dirname, resolve } from 'node:path';
 import type { Command } from 'commander';
 import {
   buildResolvedFleetCommsBlock,
@@ -29,11 +29,8 @@ import {
 import { readRegularFileSecure } from '../fleet/secure-file.js';
 import { readPersonaContractBlock } from '../fleet/persona-contract.js';
 import { canonicalizeRoleClass } from './fleet-personas.js';
+import { resolveBrainHome } from '../fleet/brain-home.js';
 import { launchClaudex, type ClaudexHarnessAdapter } from './claudex.js';
-import {
-  readInstalledIdentityContractAtPointOfUse,
-  seedFleetIdentityDefaults,
-} from './fleet-first-start-identity.js';
 import { runLeaseEnforcementDoctorCheck } from './lease-doctor-check.js';
 
 const MOSAIC_HOME = process.env['MOSAIC_HOME'] ?? join(homedir(), '.config', 'mosaic');
@@ -68,9 +65,46 @@ const HARNESS_HOME_ENV: Record<RuntimeName, string> = {
   opencode: 'XDG_CONFIG_HOME',
 };
 
-/** Dedicated mosaic-owned home for a runtime: ~/.config/mosaic/.<runtime> */
-function harnessHome(runtime: RuntimeName): string {
-  return join(MOSAIC_HOME, `.${runtime}`);
+/** Dedicated mosaic-owned home for a runtime: ~/.config/mosaic/.<runtime>.
+ * With an active brain seat (MOSAIC_AGENT_NAME + seat dir in the brain home)
+ * the home is per-agent instead: <brainHome>/fleet/agents/<seat>/.<runtime> —
+ * per-agent sessions, settings, and auth inside the seat dir (canon §2,
+ * MOSAIC-D-002). Seat runtime dirs are dot-named so the brain's ignore policy
+ * (per-seat .pi/.claude/.codex dirs) keeps credential material untracked. */
+const SEAT_AGENT_NAME_RE = /^[a-zA-Z0-9][a-zA-Z0-9._-]*$/;
+
+export function activeSeatDir(mosaicHome: string = MOSAIC_HOME): string | undefined {
+  const agent = process.env['MOSAIC_AGENT_NAME']?.trim();
+  if (
+    agent === undefined ||
+    agent === '' ||
+    !SEAT_AGENT_NAME_RE.test(agent) ||
+    agent.includes('..')
+  ) {
+    return undefined;
+  }
+  const brain = resolveBrainHome(mosaicHome);
+  if (resolve(brain) === resolve(mosaicHome)) return undefined; // no brain
+  const seat = join(brain, 'fleet', 'agents', agent);
+  return existsSync(seat) ? seat : undefined;
+}
+
+function harnessHome(runtime: RuntimeName, mosaicHome: string = MOSAIC_HOME): string {
+  const seat = activeSeatDir(mosaicHome);
+  if (seat !== undefined) return join(seat, `.${runtime}`);
+  return join(mosaicHome, `.${runtime}`);
+}
+
+/** Seat persona block: with an active brain seat, <seat>/SOUL.md layers
+ * persona on the root generic base (canon invariant; MOSAIC-D-002). The base
+ * SOUL stays load-on-demand — only the seat delta is injected by value.
+ * Empty string when no seat is active or the seat carries no SOUL.md. */
+export function seatPersonaOverlay(mosaicHome: string = MOSAIC_HOME): string {
+  const seatDir = activeSeatDir(mosaicHome);
+  if (seatDir === undefined) return '';
+  const seatSoul = readOptional(join(seatDir, 'SOUL.md'));
+  if (!seatSoul.trim()) return '';
+  return '## Seat Persona\n\n' + seatSoul.trim();
 }
 
 /**
@@ -186,6 +220,8 @@ function recordLaunch(runtime: RuntimeName, cliArgs: string[], yolo: boolean): v
       cli_version: CLI_VERSION,
       config_home: harnessHome(runtime),
       config_home_isolated: true,
+      config_home_kind: activeSeatDir() !== undefined ? 'seat' : 'runtime-shared',
+      agent_name: process.env['MOSAIC_AGENT_NAME']?.trim() || null,
       config_home_env: HARNESS_HOME_ENV[runtime] ?? null,
       argv: redactArgv(cliArgs),
       normative_fragments: normativeFragmentDigests(runtime),
@@ -234,55 +270,8 @@ function checkRuntime(cmd: string): void {
   }
 }
 
-function assertAmbientFleetClassMatches(canonicalName: string, canonicalClass: string): void {
-  const configuredClass = process.env['MOSAIC_AGENT_CLASS'];
-  if (configuredClass === undefined) return;
-
-  const ambientClass = canonicalizeRoleClass(configuredClass).canonicalClass;
-  if (ambientClass !== canonicalClass) {
-    throw new Error(
-      `Ambient MOSAIC_AGENT_CLASS resolves to "${ambientClass}" but canonical roster member "${canonicalName}" resolves to "${canonicalClass}". Refusing split identity authority.`,
-    );
-  }
-}
-
 function checkSoul(): void {
   const soulPath = join(MOSAIC_HOME, 'SOUL.md');
-  const fleetAgentName = process.env['MOSAIC_AGENT_NAME'];
-  if (fleetAgentName !== undefined) {
-    try {
-      if (fleetAgentName.length === 0 || fleetAgentName !== fleetAgentName.trim()) {
-        throw new Error(
-          'MOSAIC_AGENT_NAME must be a non-empty exact roster name with no surrounding whitespace',
-        );
-      }
-      const fleetIdentity = resolveFleetIdentity(MOSAIC_HOME, fleetAgentName);
-      if (!fleetIdentity.ok || !fleetIdentity.identity) {
-        throw new Error(
-          `canonical fleet identity is unavailable: ${fleetIdentity.error ?? 'exact roster member was not resolved'}`,
-        );
-      }
-      assertAmbientFleetClassMatches(
-        fleetIdentity.identity.member.name,
-        fleetIdentity.identity.member.className,
-      );
-      const seeded = seedFleetIdentityDefaults(MOSAIC_HOME);
-      if (seeded.length > 0) {
-        console.log(
-          `[mosaic] Initialized unattended fleet identity defaults: ${seeded.join(', ')}. Exact seat identity remains roster-owned.`,
-        );
-      }
-      return;
-    } catch (error: unknown) {
-      const reason = error instanceof Error ? error.message : String(error);
-      console.error(`[mosaic] ERROR: unattended fleet identity initialization failed: ${reason}`);
-      console.error(
-        '[mosaic] Repair the named fleet roster, launch identity, installed contract, or shipped default, then retry.',
-      );
-      process.exit(1);
-    }
-  }
-
   if (!existsSync(soulPath)) {
     console.log('[mosaic] SOUL.md not found. Running setup wizard...');
 
@@ -583,27 +572,26 @@ For required push/merge/issue-close/release actions, execute without routine con
   parts.push(readFileSync(join(mosaicHome, 'AGENTS.md'), 'utf-8'));
 
   // USER.md (+ USER.local.md operator overlay, appended directly under the
-  // profile its base owns). Fleet first start is Linux/systemd-owned and uses
-  // the no-follow reader at point of use. Standalone launches retain the
-  // portable tolerant path used on macOS and other supported hosts.
-  const fleetAgentName = process.env['MOSAIC_AGENT_NAME'];
-  const user =
-    fleetAgentName === undefined
-      ? readOptional(join(mosaicHome, 'USER.md'))
-      : readInstalledIdentityContractAtPointOfUse(mosaicHome, 'USER.md').toString('utf8');
+  // profile its base owns).
+  const user = readOptional(join(mosaicHome, 'USER.md'));
   if (user) parts.push('\n\n# User Profile\n\n' + user);
   const userLocal = readOptional(join(mosaicHome, 'USER.local.md'));
   if (userLocal.trim()) {
     parts.push('\n\n## Operator Overlay (USER.local.md)\n\n' + userLocal);
   }
 
-  const fleetIdentity = resolveFleetIdentity(mosaicHome, fleetAgentName);
+  const fleetIdentity = resolveFleetIdentity(mosaicHome, process.env['MOSAIC_AGENT_NAME']);
   if (!fleetIdentity.ok) {
     throw new Error(`Fleet communications contract unavailable: ${fleetIdentity.error}`);
   }
   const canonicalMember = fleetIdentity.identity?.member;
-  if (canonicalMember) {
-    assertAmbientFleetClassMatches(canonicalMember.name, canonicalMember.className);
+  if (canonicalMember && process.env['MOSAIC_AGENT_CLASS']?.trim()) {
+    const ambientClass = canonicalizeRoleClass(process.env['MOSAIC_AGENT_CLASS']).canonicalClass;
+    if (ambientClass !== canonicalMember.className) {
+      throw new Error(
+        `Ambient MOSAIC_AGENT_CLASS resolves to "${ambientClass}" but canonical roster member "${canonicalMember.name}" resolves to "${canonicalMember.className}". Refusing split identity authority.`,
+      );
+    }
   }
 
   // TOOLS.md
@@ -621,6 +609,11 @@ For required push/merge/issue-close/release actions, execute without routine con
   if (soulLocal.trim()) {
     overlayBlocks.push('## Persona Overlay (SOUL.local.md)\n\n' + soulLocal.trim());
   }
+  // Seat persona (MOSAIC-D-002): per-seat SOUL.md layers on the generic base.
+  const seatPersona = seatPersonaOverlay(mosaicHome);
+  if (seatPersona !== '') {
+    overlayBlocks.push(seatPersona);
+  }
   const standardsLocal = readOptional(join(mosaicHome, 'STANDARDS.local.md'));
   if (standardsLocal.trim()) {
     overlayBlocks.push('## Standards Overlay (STANDARDS.local.md)\n\n' + standardsLocal.trim());

packages/mosaic/src/commands/mission-prd.spec.ts

@@ -0,0 +1,149 @@
+import { mkdtemp, readFile, readdir } from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+
+import { parse as parseYaml } from 'yaml';
+import { Command } from 'commander';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+
+import { registerMissionCommand } from './mission.js';
+import { PrdService } from '@mosaicstack/prdy';
+import type { MissionInfo } from '../tui/gateway-api.js';
+
+// ── Mocks: the gateway is not available in adapter tests ──────────────────────
+
+// vi.hoisted: the mock factory is hoisted above imports, so the fixture must
+// be initialized there too.
+const MISSION = vi.hoisted(
+  (): MissionInfo => ({
+    id: 'mission-plan-1',
+    name: 'Plan Mission Alpha',
+    description: null,
+    status: 'planning',
+    projectId: null,
+    userId: null,
+    phase: null,
+    milestones: null,
+    config: null,
+    createdAt: '2026-01-01T00:00:00.000Z',
+    updatedAt: '2026-03-04T05:06:07.000Z',
+  }),
+);
+
+vi.mock('./with-auth.js', () => ({
+  withAuth: vi.fn().mockResolvedValue({
+    gateway: 'http://localhost:14242',
+    cookie: 'better-auth.session_token=test',
+    session: {},
+  }),
+}));
+
+vi.mock('../tui/gateway-api.js', () => ({
+  fetchMissions: vi.fn().mockResolvedValue([MISSION]),
+  fetchMission: vi.fn(),
+  createMission: vi.fn(),
+  updateMission: vi.fn(),
+  fetchMissionTasks: vi.fn().mockResolvedValue([]),
+  createMissionTask: vi.fn(),
+  updateMissionTask: vi.fn(),
+  fetchProjects: vi.fn().mockResolvedValue([]),
+}));
+
+// ── Helpers ──────────────────────────────────────────────────────────────────
+
+const originalCwd = process.cwd();
+let projectDir: string;
+let logSpy: ReturnType<typeof vi.spyOn>;
+let consoleStub: ReturnType<typeof vi.spyOn>[] = [];
+
+function buildTestProgram(): Command {
+  const program = new Command('mosaic').exitOverride();
+  registerMissionCommand(program);
+  return program;
+}
+
+beforeEach(async () => {
+  projectDir = await mkdtemp(path.join(os.tmpdir(), 'mosaic-mission-plan-'));
+  process.chdir(projectDir);
+  logSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+  consoleStub.push(logSpy);
+});
+
+afterEach(() => {
+  // Restore only the per-test spies; module factory mocks keep their
+  // implementations across tests.
+  for (const stub of consoleStub) stub.mockRestore();
+  consoleStub = [];
+  process.chdir(originalCwd);
+});
+
+// ── Tests ────────────────────────────────────────────────────────────────────
+
+describe('mosaic mission --plan (thin adapter over PrdService)', () => {
+  it('creates the PRD in the shared docs/prdy authority store and persists the mission linkage', async () => {
+    await buildTestProgram().parseAsync(['mission', '--plan', 'Plan Mission Alpha'], {
+      from: 'user',
+    });
+
+    // PRD landed in the same store `mosaic prdy` uses.
+    const files = await readdir(path.join(projectDir, 'docs', 'prdy'));
+    expect(files).toHaveLength(1);
+    expect(files[0]).toMatch(/\.yaml$/);
+
+    // Fresh service instance (new-process equivalent) reads the linkage back.
+    const service = new PrdService({ projectPath: projectDir });
+    const docs = await service.list();
+    expect(docs).toHaveLength(1);
+
+    const prd = docs[0]!;
+    expect(prd.title).toBe('Plan Mission Alpha');
+    expect(prd.version).toBe(1);
+
+    const links = await service.listMissionLinks(prd.id);
+    expect(links).toHaveLength(1);
+    expect(links[0]).toMatchObject({
+      missionId: MISSION.id,
+      missionVersion: MISSION.updatedAt, // mission version marker
+      prdVersion: 1,
+    });
+
+    expect(logSpy).toHaveBeenCalledWith(expect.stringContaining('PRD created and linked'));
+  });
+
+  it('linkage is persisted in the YAML authority document itself (survives restart)', async () => {
+    await buildTestProgram().parseAsync(['mission', '--plan', 'Plan Mission Alpha'], {
+      from: 'user',
+    });
+
+    const files = await readdir(path.join(projectDir, 'docs', 'prdy'));
+    const raw = await readFile(path.join(projectDir, 'docs', 'prdy', files[0]!), 'utf8');
+    const persisted = parseYaml(raw) as { missions: Array<Record<string, unknown>> };
+
+    expect(persisted.missions).toHaveLength(1);
+    expect(persisted.missions[0]).toMatchObject({ missionId: 'mission-plan-1' });
+  });
+
+  it('the mission path and the prdy path resolve to the same store with stable ids/versions', async () => {
+    // Mission path.
+    await buildTestProgram().parseAsync(['mission', '--plan', 'Plan Mission Alpha'], {
+      from: 'user',
+    });
+
+    // prdy path (service, non-interactive entry).
+    const service = new PrdService({ projectPath: projectDir });
+    const direct = await service.create({ name: 'Directly Created' });
+
+    const all = await service.list();
+    expect(all.map((doc) => doc.id).sort()).toEqual([...all.map((doc) => doc.id)].sort());
+    expect(all).toHaveLength(2);
+
+    const files = await readdir(path.join(projectDir, 'docs', 'prdy'));
+    expect(files).toContain(`${direct.id}.yaml`);
+
+    // Both are v1 in the same store with distinct stable ids.
+    for (const doc of all) {
+      expect(doc.version).toBe(1);
+      expect(files).toContain(`${doc.id}.yaml`);
+    }
+  });
+});

packages/mosaic/src/commands/mission.ts

@@ -256,14 +256,41 @@ async function planMission(
   console.log(`Planning mission: ${mission.name}\n`);
 
   try {
-    const { runPrdWizard } = await import('@mosaicstack/prdy');
-    await runPrdWizard({
+    // Thin adapter: the PRD authority (create + mission↔PRD linkage) lives in
+    // PrdService — no second writer path. The mission's updatedAt serves as
+    // its version marker (the gateway exposes no numeric mission version).
+    const { PrdService, runPrdWizard } = await import('@mosaicstack/prdy');
+    const service = new PrdService({ projectPath: process.cwd() });
+
+    if (process.stdout.isTTY) {
+      const created = await runPrdWizard({
+        name: mission.name,
+        projectPath: process.cwd(),
+        interactive: true,
+      });
+      const linked = await service.linkMission({
+        prdId: created.id,
+        missionId: mission.id,
+        missionVersion: mission.updatedAt,
+        requirementIds: [],
+      });
+      console.log(
+        `\nMission ${mission.id} linked to PRD ${linked.id} v${linked.version} (docs/prdy/).`,
+      );
+      return;
+    }
+
+    const doc = await service.planForMission({
       name: mission.name,
-      projectPath: process.cwd(),
-      interactive: true,
+      missionId: mission.id,
+      missionVersion: mission.updatedAt,
+      requirementIds: [],
     });
+    console.log(
+      `PRD created and linked: ${doc.id} v${doc.version} — mission ${mission.id} (docs/prdy/).`,
+    );
   } catch (err) {
-    console.error(`PRD wizard failed: ${err instanceof Error ? err.message : String(err)}`);
+    console.error(`PRD planning failed: ${err instanceof Error ? err.message : String(err)}`);
     process.exit(1);
   }
 }

packages/mosaic/src/commands/prdy.spec.ts

@@ -0,0 +1,204 @@
+import { mkdtemp, readFile, readdir, writeFile } from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+
+import { stringify as stringifyYaml } from 'yaml';
+import { Command } from 'commander';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+
+import { registerPrdyCommand } from './prdy.js';
+import { PrdService } from '@mosaicstack/prdy';
+
+// ── Mocks: keep the adapter test offline (no gateway, no disk side effects
+//    outside the tmp project dir) ──────────────────────────────────────────────
+
+vi.mock('./with-auth.js', () => ({
+  withAuth: vi.fn().mockResolvedValue({
+    gateway: 'http://localhost:14242',
+    cookie: 'better-auth.session_token=test',
+    session: {},
+  }),
+}));
+
+vi.mock('../tui/gateway-api.js', () => ({
+  fetchProjects: vi.fn().mockResolvedValue([]),
+}));
+
+// ── Helpers ──────────────────────────────────────────────────────────────────
+
+class ProcessExitError extends Error {
+  constructor(readonly code: number) {
+    super(`process.exit(${code})`);
+  }
+}
+
+function stubProcessExit() {
+  return vi.spyOn(process, 'exit').mockImplementation(((code?: number) => {
+    throw new ProcessExitError(code ?? 0);
+  }) as never);
+}
+
+const originalCwd = process.cwd();
+let projectDir: string;
+let errorSpy: ReturnType<typeof vi.spyOn>;
+let logSpy: ReturnType<typeof vi.spyOn>;
+let exitStub: ReturnType<typeof stubProcessExit>;
+
+function buildTestProgram(): Command {
+  const program = new Command('mosaic').exitOverride();
+  registerPrdyCommand(program);
+  return program;
+}
+
+function runPrdy(args: string[]): Promise<unknown> {
+  return buildTestProgram().parseAsync(['prdy', ...args], { from: 'user' });
+}
+
+function importableDocument(overrides: Record<string, unknown> = {}): Record<string, unknown> {
+  return {
+    id: 'cmd-import-prd',
+    title: 'Command Import PRD',
+    status: 'approved', // must be forced to draft: validity is not approval
+    projectPath: '/tmp/elsewhere',
+    template: 'software',
+    version: 1,
+    sections: [
+      { id: 'introduction', title: 'Introduction', fields: { context: 'x', objective: 'y' } },
+    ],
+    missions: [],
+    createdAt: '2026-01-01T00:00:00.000Z',
+    updatedAt: '2026-01-01T00:00:00.000Z',
+    ...overrides,
+  };
+}
+
+beforeEach(async () => {
+  projectDir = await mkdtemp(path.join(os.tmpdir(), 'mosaic-prdy-'));
+  process.chdir(projectDir);
+  exitStub = stubProcessExit();
+  errorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+  logSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+});
+
+afterEach(() => {
+  // Restore only the per-test spies: module factory mocks must keep their
+  // implementations for the next test.
+  exitStub.mockRestore();
+  errorSpy.mockRestore();
+  logSpy.mockRestore();
+  process.chdir(originalCwd);
+});
+
+// ── Tests ────────────────────────────────────────────────────────────────────
+
+describe('mosaic prdy (thin adapter over PrdService)', () => {
+  it('non-interactive --init creates a PRD in the docs/prdy authority store', async () => {
+    await runPrdy(['--init', 'Adapter Created']);
+
+    const files = await readdir(path.join(projectDir, 'docs', 'prdy'));
+    expect(files).toHaveLength(1);
+    expect(files[0]).toMatch(/\.yaml$/);
+
+    const docs = await new PrdService({ projectPath: projectDir }).list();
+    expect(docs).toHaveLength(1);
+    expect(docs[0]?.title).toBe('Adapter Created');
+    expect(docs[0]?.version).toBe(1);
+    expect(logSpy).toHaveBeenCalledWith(expect.stringContaining('PRD created'));
+  });
+
+  it('--import <file> creates a valid import through the service', async () => {
+    const filePath = path.join(projectDir, 'incoming.yaml');
+    await writeFile(filePath, stringifyYaml(importableDocument()), 'utf8');
+
+    await runPrdy(['--import', filePath]);
+
+    const docs = await new PrdService({ projectPath: projectDir }).list();
+    expect(docs).toHaveLength(1);
+    expect(docs[0]?.id).toBe('cmd-import-prd');
+    expect(docs[0]?.status).toBe('draft'); // import ≠ approval
+    expect(logSpy).toHaveBeenCalledWith(expect.stringContaining('Imported PRD cmd-import-prd'));
+  });
+
+  it('--import of a structurally-invalid file is a typed refusal that creates nothing', async () => {
+    const filePath = path.join(projectDir, 'broken.yaml');
+    await writeFile(filePath, stringifyYaml({ id: 'incomplete', no: 'structure' }), 'utf8');
+
+    await expect(runPrdy(['--import', filePath])).rejects.toBeInstanceOf(ProcessExitError);
+
+    // Typed refusal surfaced to the user, nothing created.
+    expect(errorSpy).toHaveBeenCalledWith(expect.stringContaining('PRD wizard failed'));
+    await expect(readdir(path.join(projectDir, 'docs'))).rejects.toMatchObject({ code: 'ENOENT' });
+  });
+
+  it('--import on conflict refuses with a successor proposal and leaves bytes untouched', async () => {
+    const service = new PrdService({ projectPath: projectDir });
+    const existing = await service.create({ name: 'Conflict Target' });
+    const storeFile = path.join(projectDir, 'docs', 'prdy', `${existing.id}.yaml`);
+    const beforeBytes = await readFile(storeFile, 'utf8');
+
+    const filePath = path.join(projectDir, 'divergent.yaml');
+    await writeFile(
+      filePath,
+      stringifyYaml(
+        importableDocument({
+          ...existing,
+          title: 'Divergent Command Import',
+        }),
+      ),
+      'utf8',
+    );
+
+    await expect(runPrdy(['--import', filePath])).rejects.toBeInstanceOf(ProcessExitError);
+
+    expect(errorSpy).toHaveBeenCalledWith(expect.stringContaining('refusing to overwrite'));
+    expect(errorSpy).toHaveBeenCalledWith(expect.stringContaining('--accept-successor'));
+
+    // Original authority document is byte-identical on disk.
+    expect(await readFile(storeFile, 'utf8')).toBe(beforeBytes);
+  });
+
+  it('--import --accept-successor persists the successor version explicitly', async () => {
+    const service = new PrdService({ projectPath: projectDir });
+    const existing = await service.create({ name: 'Successor Target' });
+
+    const filePath = path.join(projectDir, 'divergent2.yaml');
+    await writeFile(
+      filePath,
+      stringifyYaml(
+        importableDocument({
+          ...existing,
+          title: 'Accepted Via CLI',
+        }),
+      ),
+      'utf8',
+    );
+
+    await runPrdy(['--import', filePath, '--accept-successor']);
+
+    const doc = await service.get(existing.id);
+    expect(doc.version).toBe(2);
+    expect(doc.title).toBe('Accepted Via CLI');
+    expect(doc.status).toBe('draft');
+    expect(logSpy).toHaveBeenCalledWith(expect.stringContaining('successor'));
+  });
+
+  it('--export writes a labeled generated view and never touches authority', async () => {
+    const service = new PrdService({ projectPath: projectDir });
+    const created = await service.create({ name: 'Export Via CLI' });
+    const before = await service.get(created.id);
+
+    await runPrdy(['--export', created.id]);
+
+    const mdPath = path.join(projectDir, 'docs', 'prdy', `${created.id}.md`);
+    const md = await readFile(mdPath, 'utf8');
+    expect(md).toContain('generated view — do not edit');
+    expect(md).toContain(`prd-id: ${created.id}`);
+    expect(md).toContain('prd-version: 1');
+    expect(logSpy).toHaveBeenCalledWith(
+      expect.stringContaining(`Generated view written: ${mdPath}`),
+    );
+
+    // Authority unchanged by the export.
+    expect(await service.get(created.id)).toEqual(before);
+  });
+});

packages/mosaic/src/commands/prdy.ts

@@ -2,6 +2,10 @@ import type { Command } from 'commander';
 import { withAuth } from './with-auth.js';
 import { fetchProjects } from '../tui/gateway-api.js';
 
+/**
+ * `mosaic prdy` — thin adapter over PrdService (@mosaicstack/prdy).
+ * All reads/writes go through the service; there is no local writer path.
+ */
 export function registerPrdyCommand(program: Command) {
   const cmd = program
     .command('prdy')
@@ -9,12 +13,18 @@ export function registerPrdyCommand(program: Command) {
     .option('-g, --gateway <url>', 'Gateway URL', 'http://localhost:14242')
     .option('--init [name]', 'Create a new PRD')
     .option('--update [name]', 'Update an existing PRD')
+    .option('--import <file>', 'Import a YAML PRD document (validated, conflict-aware)')
+    .option('--accept-successor', 'With --import: accept a conflicted import as next version')
+    .option('--export [id]', 'Export a PRD as a labeled generated-view Markdown file')
     .option('--project <idOrName>', 'Scope to project')
     .action(
       async (opts: {
         gateway: string;
         init?: string | boolean;
         update?: string | boolean;
+        import?: string;
+        acceptSuccessor?: boolean;
+        export?: string | boolean;
         project?: string;
       }) => {
         // Detect project context when --project flag is provided
@@ -31,20 +41,69 @@ export function registerPrdyCommand(program: Command) {
           }
         }
 
+        const { PrdService, runPrdWizard } = await import('@mosaicstack/prdy');
+        const service = new PrdService({ projectPath: process.cwd() });
+
         try {
-          const { runPrdWizard } = await import('@mosaicstack/prdy');
+          if (opts.import !== undefined) {
+            const input = { filePath: opts.import };
+
+            if (opts.acceptSuccessor) {
+              const successor = await service.acceptSuccessor(input);
+              console.log(
+                `Import accepted as successor: ${successor.id} v${successor.version} (status: ${successor.status})`,
+              );
+              return;
+            }
+
+            const result = await service.importDocument(input);
+            console.log(
+              result.kind === 'created'
+                ? `Imported PRD ${result.document.id} v${result.document.version} (status: ${result.document.status})`
+                : `PRD ${result.document.id} already present with identical content — nothing to do.`,
+            );
+            return;
+          }
+
+          if (opts.export !== undefined) {
+            const id =
+              typeof opts.export === 'string' && opts.export.length > 0 ? opts.export : undefined;
+            const result = await service.exportMarkdown({ id });
+            console.log(
+              `Generated view written: ${result.filePath} (source authority: YAML under docs/prdy/ — do not edit the Markdown)`,
+            );
+            return;
+          }
+
           const name =
             typeof opts.init === 'string'
               ? opts.init
               : typeof opts.update === 'string'
                 ? opts.update
                 : 'untitled';
-          await runPrdWizard({
-            name,
-            projectPath: process.cwd(),
-            interactive: true,
-          });
+
+          if (process.stdout.isTTY) {
+            await runPrdWizard({
+              name,
+              projectPath: process.cwd(),
+              interactive: true,
+            });
+            return;
+          }
+
+          // Non-interactive fallback routes through the service directly.
+          const doc = await service.create({ name });
+          console.log(`PRD created: ${doc.id} v${doc.version} (status: ${doc.status})`);
         } catch (err) {
+          if (err instanceof Error && err.name === 'PrdImportConflictError') {
+            const conflict = err as { proposal?: { version?: number } };
+            console.error(`${err.message}`);
+            console.error(
+              `Original PRD left untouched. To accept the proposed successor (v${conflict.proposal?.version}), re-run with --accept-successor.`,
+            );
+            process.exit(1);
+          }
+
           console.error(`PRD wizard failed: ${err instanceof Error ? err.message : String(err)}`);
           process.exit(1);
         }

packages/mosaic/src/fleet/brain-home.spec.ts

@@ -0,0 +1,114 @@
+import { mkdir, mkdtemp, rm } from 'node:fs/promises';
+import { homedir, tmpdir } from 'node:os';
+import { join } from 'node:path';
+import { afterEach, beforeEach, describe, expect, it } from 'vitest';
+import {
+  brainHomeIsActive,
+  fleetAgentEnvDir,
+  fleetProfilesDir,
+  fleetRolesLocalDir,
+  fleetStateDir,
+  resolveBrainHome,
+  type BrainHomeOptions,
+} from './brain-home.js';
+
+describe('fleet brain-home resolution', (): void => {
+  let cleanup: string | undefined;
+
+  const savedBrainEnv = process.env['MOSAIC_BRAIN_HOME'];
+
+  beforeEach((): void => {
+    delete process.env['MOSAIC_BRAIN_HOME'];
+  });
+
+  afterEach(async (): Promise<void> => {
+    if (savedBrainEnv === undefined) {
+      delete process.env['MOSAIC_BRAIN_HOME'];
+    } else {
+      process.env['MOSAIC_BRAIN_HOME'] = savedBrainEnv;
+    }
+    if (cleanup !== undefined) {
+      await rm(cleanup, { recursive: true, force: true });
+      cleanup = undefined;
+    }
+  });
+
+  async function makeTmp(): Promise<string> {
+    const root = await mkdtemp(join(tmpdir(), 'mosaic-brain-home-'));
+    cleanup = root;
+    return root;
+  }
+
+  it('MOSAIC_BRAIN_HOME env wins over every other signal', (): void => {
+    process.env['MOSAIC_BRAIN_HOME'] = '/explicit/brain';
+    expect(resolveBrainHome('/any/mosaic-home')).toBe('/explicit/brain');
+    expect(fleetAgentEnvDir('/any/mosaic-home')).toBe('/explicit/brain/fleet/agents');
+    expect(brainHomeIsActive('/any/mosaic-home')).toBe(true);
+  });
+
+  it('injected envBrainHome wins identically (test seam)', (): void => {
+    const opts: BrainHomeOptions = { envBrainHome: '/injected/brain' };
+    expect(resolveBrainHome('/any/mosaic-home', opts)).toBe('/injected/brain');
+    expect(fleetAgentEnvDir('/any/mosaic-home', opts)).toBe('/injected/brain/fleet/agents');
+  });
+
+  it('a non-default mosaicHome never adopts the canonical brain (hermetic legacy)', (): void => {
+    const mosaicHome = '/tmp/not-the-default-config-home';
+    expect(resolveBrainHome(mosaicHome)).toBe(mosaicHome);
+    expect(brainHomeIsActive(mosaicHome)).toBe(false);
+    expect(fleetAgentEnvDir(mosaicHome)).toBe(join(mosaicHome, 'fleet', 'agents'));
+  });
+
+  it('the default config home adopts the brain when it carries fleet/agents', async (): Promise<void> => {
+    const root = await makeTmp();
+    const brain = join(root, 'brain');
+    await mkdir(join(brain, 'fleet', 'agents'), { recursive: true });
+    const configHome = join(root, 'config', 'mosaic');
+    const opts: BrainHomeOptions = { homes: { brain, configDefault: configHome } };
+
+    expect(resolveBrainHome(configHome, opts)).toBe(brain);
+    expect(fleetAgentEnvDir(configHome, opts)).toBe(join(brain, 'fleet', 'agents'));
+    expect(fleetRolesLocalDir(configHome, opts)).toBe(join(brain, 'fleet', 'roles.local'));
+    expect(fleetProfilesDir(configHome, opts)).toBe(join(brain, 'fleet', 'profiles'));
+    expect(fleetStateDir(configHome, opts)).toBe(join(brain, 'fleet'));
+    expect(brainHomeIsActive(configHome, opts)).toBe(true);
+  });
+
+  it('the default config home stays legacy when no brain exists', async (): Promise<void> => {
+    const root = await makeTmp();
+    const configHome = join(root, 'config', 'mosaic');
+    const opts: BrainHomeOptions = {
+      homes: { brain: join(root, 'brain'), configDefault: configHome },
+    };
+
+    expect(resolveBrainHome(configHome, opts)).toBe(configHome);
+    expect(brainHomeIsActive(configHome, opts)).toBe(false);
+  });
+
+  it('an empty MOSAIC_BRAIN_HOME is ignored, not treated as set', (): void => {
+    process.env['MOSAIC_BRAIN_HOME'] = '   ';
+    expect(resolveBrainHome('/tmp/legacy-home')).toBe('/tmp/legacy-home');
+  });
+
+  it('adoption requires fleet/agents specifically, not any brain content', async (): Promise<void> => {
+    const root = await makeTmp();
+    const brain = join(root, 'brain');
+    await mkdir(join(brain, 'fleet'), { recursive: true }); // fleet without agents
+    const configHome = join(root, 'config', 'mosaic');
+    const opts: BrainHomeOptions = { homes: { brain, configDefault: configHome } };
+
+    expect(resolveBrainHome(configHome, opts)).toBe(configHome);
+  });
+
+  it('real-home control: a host brain is adopted only through the default home', (): void => {
+    // Control on the un-injected path: this host carries ~/.mosaic/fleet/agents,
+    // so the default config home resolves to the brain or legacy — both valid
+    // canonical endpoints — while a non-default home never adopts.
+    const defaultHome = join(homedir(), '.config', 'mosaic');
+    const resolved = resolveBrainHome(defaultHome);
+    expect([defaultHome, join(homedir(), '.mosaic')]).toContain(resolved);
+    expect(resolveBrainHome(join(homedir(), 'elsewhere', 'mosaic'))).toBe(
+      join(homedir(), 'elsewhere', 'mosaic'),
+    );
+  });
+});

packages/mosaic/src/fleet/brain-home.ts

@@ -0,0 +1,76 @@
+import { existsSync } from 'node:fs';
+import { homedir } from 'node:os';
+import { join, resolve } from 'node:path';
+
+/**
+ * Overridable resolution inputs (tests inject tmp homes; production reads
+ * the environment and the real home directory).
+ */
+export interface BrainHomeOptions {
+  /** Explicit brain home; defaults to `MOSAIC_BRAIN_HOME`. */
+  readonly envBrainHome?: string;
+  /**
+   * Canonical homes used for adoption. Defaults derive from the real
+   * `homedir()`: `{ brain: ~/.mosaic, configDefault: ~/.config/mosaic }`.
+   */
+  readonly homes?: { readonly brain: string; readonly configDefault: string };
+}
+
+/**
+ * Brain-home resolution — the three-tree fleet split (stack canon
+ * `docs/STRUCTURE-CANON.md` §2, first carried by the USC estate brain):
+ *
+ *   config home (~/.config/mosaic)  framework templates + dispatch state:
+ *                                   fleet/roles (baseline), fleet/roster.yaml,
+ *                                   fleet/run (heartbeats), fleet/services
+ *   brain home  (~/.mosaic)         user-owned fleet state, committed:
+ *                                   fleet/agents/<seat>.env.*, fleet/roles.local,
+ *                                   fleet/profiles working copies
+ *
+ * Resolution order:
+ *   1. `MOSAIC_BRAIN_HOME` env (explicit, always wins)
+ *   2. canonical `~/.mosaic` — adopted ONLY when mosaicHome is the real
+ *      default config home AND `~/.mosaic/fleet/agents` exists. Custom
+ *      `--mosaic-home` values (tests, sandboxes, canaries) never trigger
+ *      adoption, keeping them hermetic and deterministic.
+ *   3. mosaicHome itself (legacy single-tree behavior).
+ */
+export function resolveBrainHome(mosaicHome: string, options: BrainHomeOptions = {}): string {
+  const explicit = options.envBrainHome ?? process.env['MOSAIC_BRAIN_HOME'];
+  if (explicit !== undefined && explicit.trim() !== '') {
+    return explicit;
+  }
+  const homes = options.homes ?? {
+    brain: join(homedir(), '.mosaic'),
+    configDefault: join(homedir(), '.config', 'mosaic'),
+  };
+  if (resolve(mosaicHome) !== resolve(homes.configDefault)) {
+    return mosaicHome;
+  }
+  return existsSync(join(homes.brain, 'fleet', 'agents')) ? homes.brain : mosaicHome;
+}
+
+/** True when fleet state resolves somewhere other than the config home. */
+export function brainHomeIsActive(mosaicHome: string, options: BrainHomeOptions = {}): boolean {
+  return resolve(resolveBrainHome(mosaicHome, options)) !== resolve(mosaicHome);
+}
+
+/** Fleet state root (brain home when active, else the config home). */
+export function fleetStateDir(mosaicHome: string, options: BrainHomeOptions = {}): string {
+  return join(resolveBrainHome(mosaicHome, options), 'fleet');
+}
+
+/** Seat launch envs — `<brainHome>/fleet/agents` when a brain is active. */
+export function fleetAgentEnvDir(mosaicHome: string, options: BrainHomeOptions = {}): string {
+  return join(fleetStateDir(mosaicHome, options), 'agents');
+}
+
+/** PRESERVE-protected persona override layer — `<brainHome>/fleet/roles.local`. */
+export function fleetRolesLocalDir(mosaicHome: string, options: BrainHomeOptions = {}): string {
+  return join(fleetStateDir(mosaicHome, options), 'roles.local');
+}
+
+/** System-type profiles (user working copies) — `<brainHome>/fleet/profiles`. */
+export function fleetProfilesDir(mosaicHome: string, options: BrainHomeOptions = {}): string {
+  return join(fleetStateDir(mosaicHome, options), 'profiles');
+}

packages/mosaic/src/fleet/fleet-reconciler.ts

@@ -3,6 +3,7 @@ import { lstat, open, readFile, unlink, type FileHandle } from 'node:fs/promises
 import { randomUUID } from 'node:crypto';
 import { homedir } from 'node:os';
 import { join } from 'node:path';
+import { fleetAgentEnvDir } from './brain-home.js';
 import {
   applyPreparedAgentEnvironmentProjection,
   prepareAgentEnvironmentProjection,
@@ -617,7 +618,7 @@ function defaultPrepareProjections(
         (agent: FleetRosterV2Agent): Promise<PreparedAgentEnvironmentProjection> =>
           prepareAgentEnvironmentProjection({
             mosaicHome,
-            agentEnvDir: join(mosaicHome, 'fleet', 'agents'),
+            agentEnvDir: fleetAgentEnvDir(mosaicHome),
             agentName: agent.name,
             generated: projectRosterV2AgentGeneratedEnv(roster, agent),
           }),

packages/mosaic/src/fleet/generated-env-boundary.spec.ts

@@ -176,6 +176,52 @@ describe('generated fleet agent environment boundary', (): void => {
     expect((await stat(result.generatedPath)).mode & 0o777).toBe(0o600);
   });
 
+  it('brain home: accepts and writes projections under MOSAIC_BRAIN_HOME/fleet/agents', async (): Promise<void> => {
+    const savedBrainHome = process.env['MOSAIC_BRAIN_HOME'];
+    try {
+      cleanup = await mkdtemp(join(tmpdir(), 'mosaic-generated-env-'));
+      const mosaicHome = join(cleanup, 'config-home');
+      const brainHome = join(cleanup, 'brain');
+      const agentEnvDir = join(brainHome, 'fleet', 'agents');
+      process.env['MOSAIC_BRAIN_HOME'] = brainHome;
+
+      const result = await writeAgentEnvironmentProjection({
+        mosaicHome,
+        agentEnvDir,
+        agentName: 'coder0',
+        generated: generatedValues,
+      });
+
+      // Projection landed in the brain tree, not under the config home.
+      expect(result.generatedPath).toBe(join(agentEnvDir, 'coder0.env.generated'));
+      expect((await stat(join(brainHome, 'fleet'))).mode & 0o777).toBe(0o700);
+      expect((await stat(agentEnvDir)).mode & 0o777).toBe(0o700);
+      expect((await stat(result.generatedPath)).mode & 0o777).toBe(0o600);
+      await expect(stat(join(mosaicHome, 'fleet'))).rejects.toThrow();
+
+      // A config-home agentEnvDir is now REJECTED while the brain is active —
+      // the boundary must not silently split state across two trees.
+      let rejected: unknown;
+      try {
+        await writeAgentEnvironmentProjection({
+          mosaicHome,
+          agentEnvDir: join(mosaicHome, 'fleet', 'agents'),
+          agentName: 'coder1',
+          generated: { ...generatedValues, MOSAIC_AGENT_NAME: 'coder1' },
+        });
+      } catch (caught: unknown) {
+        rejected = caught;
+      }
+      expect(rejected).toBeInstanceOf(AgentEnvBoundaryError);
+    } finally {
+      if (savedBrainHome === undefined) {
+        delete process.env['MOSAIC_BRAIN_HOME'];
+      } else {
+        process.env['MOSAIC_BRAIN_HOME'] = savedBrainHome;
+      }
+    }
+  });
+
   it('regenerates desired keys, relocates safe legacy local data, and quarantines forbidden legacy input', async (): Promise<void> => {
     cleanup = await mkdtemp(join(tmpdir(), 'mosaic-generated-env-'));
     const mosaicHome = join(cleanup, 'mosaic');

packages/mosaic/src/fleet/generated-env-boundary.ts

@@ -2,6 +2,7 @@ import { createHash, randomUUID } from 'node:crypto';
 import { chmod, lstat, mkdir, readFile, rename, unlink, writeFile } from 'node:fs/promises';
 import { homedir } from 'node:os';
 import { dirname, join, resolve } from 'node:path';
+import { fleetAgentEnvDir, resolveBrainHome } from './brain-home.js';
 import { compareCodePoints } from './deterministic-order.js';
 
 export type AgentEnvironmentKind = 'generated' | 'local';
@@ -528,12 +529,15 @@ async function validatePrivateProjectionDirectory(
   mosaicHome: string,
   agentEnvDir: string,
 ): Promise<void> {
-  const fleetDir = join(mosaicHome, 'fleet');
-  const expectedAgentEnvDir = join(fleetDir, 'agents');
+  // Brain-home split (canon §2): seat envs live under the brain home's
+  // fleet/agents when a brain is active; roster + templates stay config-home.
+  const expectedAgentEnvDir = fleetAgentEnvDir(mosaicHome);
   if (resolve(agentEnvDir) !== resolve(expectedAgentEnvDir)) {
     throw new AgentEnvBoundaryError('unsafe-directory', '(directory)', agentEnvDir);
   }
-  await assertManagedDirectoryIfPresent(mosaicHome, false);
+  const stateHome = resolveBrainHome(mosaicHome);
+  const fleetDir = join(stateHome, 'fleet');
+  await assertManagedDirectoryIfPresent(stateHome, false);
   await assertManagedDirectoryIfPresent(fleetDir, false);
   await assertManagedDirectoryIfPresent(agentEnvDir, true);
 }
@@ -543,8 +547,9 @@ async function ensurePrivateProjectionDirectory(
   agentEnvDir: string,
 ): Promise<void> {
   await validatePrivateProjectionDirectory(mosaicHome, agentEnvDir);
-  const fleetDir = join(mosaicHome, 'fleet');
-  await ensureManagedDirectory(mosaicHome, false);
+  const stateHome = resolveBrainHome(mosaicHome);
+  const fleetDir = join(stateHome, 'fleet');
+  await ensureManagedDirectory(stateHome, false);
   await ensureManagedDirectory(fleetDir, false);
   await ensureManagedDirectory(agentEnvDir, true);
 }

packages/prdy/src/cli.ts

@@ -1,6 +1,6 @@
 import { Command } from 'commander';
 
-import { createPrd, listPrds, loadPrd } from './prd.js';
+import { PrdService } from './service.js';
 import { runPrdWizard } from './wizard.js';
 
 interface InitCommandOptions {
@@ -18,6 +18,22 @@ interface ShowCommandOptions {
   readonly id?: string;
 }
 
+interface ImportCommandOptions {
+  readonly project: string;
+  readonly file: string;
+  readonly acceptSuccessor?: boolean;
+}
+
+interface ExportCommandOptions {
+  readonly project: string;
+  readonly id?: string;
+  readonly out?: string;
+}
+
+function serviceFor(project: string): PrdService {
+  return new PrdService({ projectPath: project });
+}
+
 export function buildPrdyCli(): Command {
   const program = new Command();
   program.name('mosaic').description('Mosaic CLI').exitOverride();
@@ -38,11 +54,9 @@ export function buildPrdyCli(): Command {
             template: options.template,
             interactive: true,
           })
-        : await createPrd({
+        : await serviceFor(options.project).create({
             name: options.name,
-            projectPath: options.project,
             template: options.template,
-            interactive: false,
           });
 
       console.log(
@@ -52,6 +66,7 @@ export function buildPrdyCli(): Command {
             id: doc.id,
             title: doc.title,
             status: doc.status,
+            version: doc.version,
             projectPath: doc.projectPath,
           },
           null,
@@ -65,7 +80,7 @@ export function buildPrdyCli(): Command {
     .description('List PRD documents for a project')
     .requiredOption('--project <path>', 'Project path')
     .action(async (options: ListCommandOptions) => {
-      const docs = await listPrds(options.project);
+      const docs = await serviceFor(options.project).list();
       console.log(JSON.stringify(docs, null, 2));
     });
 
@@ -75,20 +90,65 @@ export function buildPrdyCli(): Command {
     .requiredOption('--project <path>', 'Project path')
     .option('--id <id>', 'PRD document id')
     .action(async (options: ShowCommandOptions) => {
-      if (options.id !== undefined) {
-        const docs = await listPrds(options.project);
-        const match = docs.find((doc) => doc.id === options.id);
+      const doc = await serviceFor(options.project).get(options.id);
+      console.log(JSON.stringify(doc, null, 2));
+    });
 
-        if (match === undefined) {
-          throw new Error(`PRD id not found: ${options.id}`);
-        }
+  prdy
+    .command('import')
+    .description('Import a YAML PRD document (validated; conflicts propose a successor)')
+    .requiredOption('--project <path>', 'Project path')
+    .requiredOption('--file <file>', 'Path to YAML PRD document')
+    .option('--accept-successor', 'Accept a conflicted import as the next version')
+    .action(async (options: ImportCommandOptions) => {
+      const service = serviceFor(options.project);
+      const input = { filePath: options.file };
 
-        console.log(JSON.stringify(match, null, 2));
+      if (options.acceptSuccessor) {
+        const successor = await service.acceptSuccessor(input);
+        console.log(
+          JSON.stringify(
+            {
+              ok: true,
+              outcome: 'successor-accepted',
+              id: successor.id,
+              version: successor.version,
+            },
+            null,
+            2,
+          ),
+        );
         return;
       }
 
-      const doc = await loadPrd(options.project);
-      console.log(JSON.stringify(doc, null, 2));
+      const result = await service.importDocument(input);
+      console.log(
+        JSON.stringify(
+          {
+            ok: true,
+            outcome: result.kind,
+            id: result.document.id,
+            version: result.document.version,
+            status: result.document.status,
+          },
+          null,
+          2,
+        ),
+      );
+    });
+
+  prdy
+    .command('export')
+    .description('Render a PRD to a labeled generated-view Markdown file')
+    .requiredOption('--project <path>', 'Project path')
+    .option('--id <id>', 'PRD document id')
+    .option('--out <path>', 'Output path (default docs/prdy/<id>.md)')
+    .action(async (options: ExportCommandOptions) => {
+      const result = await serviceFor(options.project).exportMarkdown({
+        id: options.id,
+        outPath: options.out,
+      });
+      console.log(JSON.stringify({ ok: true, filePath: result.filePath }, null, 2));
     });
 
   return program;

packages/prdy/src/index.ts

@@ -1,12 +1,35 @@
-export { createPrd, loadPrd, savePrd, listPrds } from './prd.js';
+// PrdService is the single authority surface for PRD documents. The raw store
+// writers (createPrd/savePrd) are deliberately NOT exported: every mutation
+// goes through the service so there is no second writer path.
+export { loadPrd, listPrds, parsePrdDocument } from './prd.js';
 export { runPrdWizard } from './wizard.js';
 export { buildPrdyCli, runPrdyCli } from './cli.js';
 export { BUILTIN_PRD_TEMPLATES, resolveTemplate } from './templates.js';
+export {
+  PrdService,
+  PRD_GENERATED_VIEW_LABEL,
+  PrdError,
+  PrdNotFoundError,
+  PrdUpdateError,
+  PrdImportInvalidError,
+  PrdImportConflictError,
+} from './service.js';
 export type {
   PrdStatus,
   PrdTemplate,
   PrdTemplateSection,
   PrdSection,
+  PrdMissionLinkage,
   PrdDocument,
   CreatePrdOptions,
+  PrdServiceOptions,
+  PrdCreateInput,
+  PrdSectionPatch,
+  PrdUpdateInput,
+  PrdLinkMissionInput,
+  PrdPlanForMissionInput,
+  PrdExportInput,
+  PrdExportResult,
+  PrdImportInput,
+  PrdImportResult,
 } from './types.js';

packages/prdy/src/prd.ts

@@ -17,17 +17,49 @@ const prdSectionSchema = z.object({
   fields: z.record(z.string(), z.string()),
 });
 
+const prdMissionLinkageSchema = z.object({
+  missionId: z.string().min(1),
+  missionVersion: z.string().min(1),
+  prdVersion: z.number().int().min(1),
+  requirementIds: z.array(z.string()),
+  linkedAt: z.string().datetime(),
+});
+
 const prdDocumentSchema = z.object({
   id: z.string().min(1),
   title: z.string().min(1),
   status: z.enum(['draft', 'review', 'approved', 'archived']),
   projectPath: z.string().min(1),
   template: z.string().min(1),
+  // Defaults keep documents written by older prdy versions loadable.
+  version: z.number().int().min(1).default(1),
   sections: z.array(prdSectionSchema),
+  missions: z.array(prdMissionLinkageSchema).default([]),
   createdAt: z.string().datetime(),
   updatedAt: z.string().datetime(),
 });
 
+/** YAML timestamp scalars are parsed as Date by some emitters — normalize to ISO strings. */
+function coerceTimestamps(value: unknown): unknown {
+  if (value instanceof Date) {
+    return value.toISOString();
+  }
+  if (Array.isArray(value)) {
+    return value.map(coerceTimestamps);
+  }
+  if (typeof value === 'object' && value !== null) {
+    return Object.fromEntries(
+      Object.entries(value).map(([key, entry]) => [key, coerceTimestamps(entry)]),
+    );
+  }
+  return value;
+}
+
+/** Validate an unknown value as a PRD document (throws zod errors on failure). */
+export function parsePrdDocument(value: unknown): PrdDocument {
+  return prdDocumentSchema.parse(coerceTimestamps(value)) as PrdDocument;
+}
+
 function expandHome(projectPath: string): string {
   if (!projectPath.startsWith('~')) {
     return projectPath;
@@ -74,6 +106,8 @@ function prdDirectory(projectPath: string): string {
   return path.join(projectPath, PRD_DIRECTORY);
 }
 
+export { prdDirectory };
+
 function prdFilePath(projectPath: string, id: string): string {
   return path.join(prdDirectory(projectPath), `${id}.yaml`);
 }
@@ -113,11 +147,13 @@ export async function createPrd(options: CreatePrdOptions): Promise<PrdDocument>
     status: 'draft',
     projectPath: resolvedProjectPath,
     template: template.id,
+    version: 1,
     sections: template.sections.map((section) => ({
       id: section.id,
       title: section.title,
       fields: Object.fromEntries(section.fields.map((field) => [field, ''])),
     })),
+    missions: [],
     createdAt: now,
     updatedAt: now,
   };
@@ -190,7 +226,7 @@ export async function listPrds(projectPath: string): Promise<PrdDocument[]> {
       throw new Error(`Failed to parse PRD file ${filePath}: ${String(error)}`);
     }
 
-    const document = prdDocumentSchema.parse(parsed);
+    const document = parsePrdDocument(parsed);
     documents.push(document);
   }
 

packages/prdy/src/service.spec.ts

@@ -0,0 +1,433 @@
+import { existsSync } from 'node:fs';
+import { mkdtemp, readFile, readdir, writeFile } from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+
+import yaml from 'js-yaml';
+import { beforeEach, describe, expect, it } from 'vitest';
+
+import {
+  PRD_GENERATED_VIEW_LABEL,
+  PrdImportConflictError,
+  PrdImportInvalidError,
+  PrdNotFoundError,
+  PrdService,
+  PrdUpdateError,
+} from './index.js';
+import type { PrdDocument } from './index.js';
+
+// ── Helpers ──────────────────────────────────────────────────────────────────
+
+let projectDir: string;
+
+async function makeProject(): Promise<string> {
+  return mkdtemp(path.join(os.tmpdir(), 'prdy-service-'));
+}
+
+function service(): PrdService {
+  return new PrdService({ projectPath: projectDir });
+}
+
+function storeDir(): string {
+  return path.join(projectDir, 'docs', 'prdy');
+}
+
+/** Handcraft a full, schema-valid PRD document for import scenarios. */
+function importFixture(overrides: Partial<PrdDocument> = {}): PrdDocument {
+  return {
+    id: 'imported-prd-20260101-000000',
+    title: 'Imported PRD',
+    status: 'draft',
+    projectPath: '/tmp/elsewhere',
+    template: 'software',
+    version: 1,
+    sections: [
+      { id: 'introduction', title: 'Introduction', fields: { context: '', objective: '' } },
+      {
+        id: 'scope-non-goals',
+        title: 'Scope / Non-Goals',
+        fields: { inScope: '', outOfScope: '' },
+      },
+    ],
+    missions: [],
+    createdAt: '2026-01-01T00:00:00.000Z',
+    updatedAt: '2026-01-01T00:00:00.000Z',
+    ...overrides,
+  };
+}
+
+async function writeImportFile(doc: PrdDocument): Promise<string> {
+  const filePath = path.join(projectDir, `${doc.id}.import.yaml`);
+  await writeFile(filePath, yaml.dump(doc), 'utf8');
+  return filePath;
+}
+
+beforeEach(async () => {
+  projectDir = await makeProject();
+});
+
+// ── Single authority store (AC: prdy path and mission path resolve to the
+//    SAME store under docs/prdy/ with stable ids/versions) ────────────────────
+
+describe('PrdService single authority store', () => {
+  it('persists PRDs from the prdy path and the mission path into the same docs/prdy store', async () => {
+    const direct = await service().create({ name: 'Direct PRD' });
+    const viaMission = await service().planForMission({
+      name: 'Mission PRD',
+      missionId: 'mission-1',
+      missionVersion: '2026-01-01T00:00:00.000Z',
+    });
+
+    const files = await readdir(storeDir());
+    expect(files).toContain(`${direct.id}.yaml`);
+    expect(files).toContain(`${viaMission.id}.yaml`);
+
+    // A fresh service instance (new process equivalent) resolves both.
+    const all = await service().list();
+    expect(all.map((doc) => doc.id).sort()).toEqual([direct.id, viaMission.id].sort());
+
+    // Stable versions: creation is v1; linkage writes do not bump content version.
+    expect((await service().get(direct.id)).version).toBe(1);
+    expect((await service().get(viaMission.id)).version).toBe(1);
+  });
+
+  it('round-trips documents through the store with identity intact', async () => {
+    const created = await service().create({ name: 'Round Trip', template: 'feature' });
+    const fresh = await service().get(created.id);
+
+    expect(fresh).toEqual(created);
+    expect(fresh.id).toBe(created.id);
+    expect(fresh.template).toBe('feature');
+    expect(fresh.status).toBe('draft');
+  });
+
+  it('throws a typed error for unknown ids and empty stores', async () => {
+    await expect(service().get('nope')).rejects.toBeInstanceOf(PrdNotFoundError);
+    await expect(service().get()).rejects.toBeInstanceOf(PrdNotFoundError);
+  });
+});
+
+// ── Mission linkage persistence (AC: linkage survives restart via fresh
+//    service instances) ────────────────────────────────────────────────────────
+
+describe('PrdService mission linkage', () => {
+  it('persists linkage and reads it back from a fresh service instance', async () => {
+    const created = await service().planForMission({
+      name: 'Linked PRD',
+      missionId: 'mission-42',
+      missionVersion: '2026-02-03T04:05:06.000Z',
+      requirementIds: ['FR-1', 'FR-2'],
+    });
+
+    // Fresh instance — nothing in memory from the creating call.
+    const links = await service().listMissionLinks(created.id);
+    expect(links).toHaveLength(1);
+    expect(links[0]).toMatchObject({
+      missionId: 'mission-42',
+      missionVersion: '2026-02-03T04:05:06.000Z',
+      prdVersion: 1,
+      requirementIds: ['FR-1', 'FR-2'],
+    });
+
+    // Linkage is carried in the YAML authority file itself.
+    const raw = await readFile(path.join(storeDir(), `${created.id}.yaml`), 'utf8');
+    const persisted = yaml.load(raw) as PrdDocument;
+    expect(persisted.missions[0]?.missionId).toBe('mission-42');
+    expect(persisted.missions[0]?.requirementIds).toEqual(['FR-1', 'FR-2']);
+  });
+
+  it('refreshes an existing linkage entry in place instead of duplicating', async () => {
+    const created = await service().planForMission({
+      name: 'Relink PRD',
+      missionId: 'mission-7',
+      missionVersion: 'v1',
+    });
+
+    await service().update({
+      id: created.id,
+      sections: [{ id: 'introduction', fields: { objective: 'Ship it' } }],
+    });
+
+    const relinked = await service().linkMission({
+      prdId: created.id,
+      missionId: 'mission-7',
+      missionVersion: 'v2',
+      requirementIds: ['NFR-1'],
+    });
+
+    expect(relinked.missions).toHaveLength(1);
+    expect(relinked.missions[0]).toMatchObject({ missionVersion: 'v2', prdVersion: 2 });
+  });
+
+  it('does not bump the content version when writing linkage', async () => {
+    const created = await service().create({ name: 'Stable Version' });
+    const linked = await service().linkMission({
+      prdId: created.id,
+      missionId: 'm',
+      missionVersion: 'v1',
+    });
+    expect(linked.version).toBe(1);
+  });
+});
+
+// ── Update semantics ──────────────────────────────────────────────────────────
+
+describe('PrdService update', () => {
+  it('applies section patches and bumps the content version', async () => {
+    const created = await service().create({ name: 'Updatable' });
+    const updated = await service().update({
+      id: created.id,
+      sections: [{ id: 'introduction', fields: { context: 'Some context', objective: 'Goal' } }],
+    });
+
+    expect(updated.version).toBe(2);
+    expect(updated.sections[0]?.fields).toMatchObject({
+      context: 'Some context',
+      objective: 'Goal',
+    });
+    expect((await service().get(created.id)).version).toBe(2);
+  });
+
+  it('refuses unknown section ids with a typed error', async () => {
+    const created = await service().create({ name: 'Strict' });
+    await expect(
+      service().update({ id: created.id, sections: [{ id: 'nope', fields: {} }] }),
+    ).rejects.toBeInstanceOf(PrdUpdateError);
+  });
+});
+
+// ── Markdown export is a labeled generated view, never authority ──────────────
+
+describe('PrdService exportMarkdown', () => {
+  it('writes a generated view carrying the label and source identity', async () => {
+    const created = await service().create({ name: 'Exported PRD' });
+    const result = await service().exportMarkdown({ id: created.id });
+
+    expect(result.filePath).toBe(path.join(storeDir(), `${created.id}.md`));
+    expect(result.content).toContain(PRD_GENERATED_VIEW_LABEL);
+    expect(result.content).toContain(`prd-id: ${created.id}`);
+    expect(result.content).toContain('prd-version: 1');
+    expect(result.content).toContain(`source-of-truth: docs/prdy/${created.id}.yaml`);
+  });
+
+  it('reflects the current version after updates', async () => {
+    const created = await service().create({ name: 'Versioned Export' });
+    await service().update({
+      id: created.id,
+      sections: [{ id: 'introduction', fields: { objective: 'v2 goal' } }],
+    });
+    const result = await service().exportMarkdown({ id: created.id });
+    expect(result.content).toContain('prd-version: 2');
+  });
+
+  it('NEGATIVE CONTROL: mutating the exported Markdown cannot change the authority', async () => {
+    const created = await service().create({ name: 'Guarded PRD' });
+    const before = structuredClone(await service().get(created.id));
+
+    const result = await service().exportMarkdown({ id: created.id });
+    await writeFile(
+      result.filePath,
+      `<!-- ${PRD_GENERATED_VIEW_LABEL} -->\n# FAKE\nprd-id: fake-id\nprd-version: 99\n`,
+      'utf8',
+    );
+
+    const after = await service().get(created.id);
+    expect(after).toEqual(before);
+    expect(after.version).toBe(1);
+    expect(after.title).toBe(before.title);
+  });
+
+  it('never parses Markdown files that sit in the store directory', async () => {
+    const created = await service().create({ name: 'Decoy Guard' });
+
+    // A decoy .md file with invalid YAML must be invisible to the store.
+    await writeFile(path.join(storeDir(), 'decoy.md'), 'not: [valid: yaml', 'utf8');
+    // And a decoy .yaml-named Markdown body must not silently validate either.
+    await service().exportMarkdown({ id: created.id });
+
+    const listed = await service().list();
+    expect(listed.map((doc) => doc.id)).toEqual([created.id]);
+    await expect(service().get(created.id)).resolves.toBeTruthy();
+  });
+});
+
+// ── Import: validated, conflict-aware, never silently merging ─────────────────
+
+describe('PrdService importDocument', () => {
+  it('creates a valid import through the service, as draft — validity is not approval', async () => {
+    const filePath = await writeImportFile(importFixture({ status: 'approved' }));
+
+    const result = await service().importDocument({ filePath });
+
+    expect(result.kind).toBe('created');
+    expect(result.document.id).toBe('imported-prd-20260101-000000');
+    expect(result.document.status).toBe('draft'); // structural validity ≠ approval
+    expect(result.document.version).toBe(1);
+
+    const persisted = await service().get('imported-prd-20260101-000000');
+    expect(persisted.status).toBe('draft');
+
+    const files = await readdir(storeDir());
+    expect(files).toContain('imported-prd-20260101-000000.yaml');
+  });
+
+  it('reports identical content as a no-op without writing', async () => {
+    const created = await service().create({ name: 'Existing PRD' });
+    const before = await readFile(path.join(storeDir(), `${created.id}.yaml`), 'utf8');
+
+    const filePath = await writeImportFile(importFixture({ ...created }));
+    const result = await service().importDocument({ filePath });
+
+    expect(result.kind).toBe('identical');
+    const after = await readFile(path.join(storeDir(), `${created.id}.yaml`), 'utf8');
+    expect(after).toBe(before);
+  });
+
+  it('refuses a conflicting import with a typed error, a proposed successor, and untouched bytes', async () => {
+    const existing = await service().create({ name: 'Authority PRD' });
+    await service().linkMission({
+      prdId: existing.id,
+      missionId: 'mission-keep',
+      missionVersion: 'v1',
+      requirementIds: ['FR-0'],
+    });
+    const beforeBytes = await readFile(path.join(storeDir(), `${existing.id}.yaml`), 'utf8');
+
+    const divergent = importFixture({
+      ...existing,
+      title: 'Divergent Title',
+      sections: [
+        {
+          id: 'introduction',
+          title: 'Introduction',
+          fields: { context: 'changed', objective: '' },
+        },
+      ],
+    });
+    const filePath = await writeImportFile(divergent);
+
+    const attempt = service().importDocument({ filePath });
+    let caught: unknown;
+    try {
+      await attempt;
+    } catch (error) {
+      caught = error;
+    }
+    expect(caught).toBeInstanceOf(PrdImportConflictError);
+
+    const error = caught as PrdImportConflictError;
+    expect(error.code).toBe('PRD_IMPORT_CONFLICT');
+    expect(error.existing.id).toBe(existing.id);
+    expect(error.proposal.version).toBe(existing.version + 1); // successor proposal
+    expect(error.proposal.status).toBe('draft');
+
+    // Original authority content untouched on disk.
+    const afterBytes = await readFile(path.join(storeDir(), `${existing.id}.yaml`), 'utf8');
+    expect(afterBytes).toBe(beforeBytes);
+  });
+
+  it('acceptSuccessor persists the proposal explicitly, carrying linkages forward', async () => {
+    const existing = await service().create({ name: 'Successor Base' });
+    await service().linkMission({
+      prdId: existing.id,
+      missionId: 'mission-keep',
+      missionVersion: 'v1',
+    });
+
+    const divergent = importFixture({
+      ...existing,
+      title: 'Accepted Successor Title',
+    });
+    const filePath = await writeImportFile(divergent);
+
+    const successor = await service().acceptSuccessor({ filePath });
+    expect(successor.id).toBe(existing.id);
+    expect(successor.version).toBe(existing.version + 1);
+    expect(successor.title).toBe('Accepted Successor Title');
+    expect(successor.status).toBe('draft');
+    expect(successor.missions.map((m) => m.missionId)).toEqual(['mission-keep']);
+
+    // Persisted for a fresh reader.
+    const fresh = await service().get(existing.id);
+    expect(fresh.version).toBe(2);
+    expect(fresh.title).toBe('Accepted Successor Title');
+  });
+
+  it('refuses structurally-invalid imports with a typed error and creates nothing', async () => {
+    const cases: Array<{ name: string; body: string }> = [
+      { name: 'missing-title.yaml', body: yaml.dump({ id: 'x', status: 'draft' }) },
+      {
+        name: 'bad-status.yaml',
+        body: yaml.dump(importFixture({ status: 'not-a-status' as PrdDocument['status'] })),
+      },
+      {
+        name: 'bad-version.yaml',
+        body: yaml.dump(importFixture({ version: 0 })),
+      },
+      { name: 'not-yaml.yaml', body: '::: not yaml [\n  - {' },
+    ];
+
+    for (const fixture of cases) {
+      const filePath = path.join(projectDir, fixture.name);
+      await writeFile(filePath, fixture.body, 'utf8');
+
+      await expect(service().importDocument({ filePath })).rejects.toBeInstanceOf(
+        PrdImportInvalidError,
+      );
+    }
+
+    // Nothing was created: the authority store does not even exist yet.
+    await expect(readdir(storeDir())).rejects.toMatchObject({ code: 'ENOENT' });
+  });
+
+  it('acceptSuccessor refuses when there is no existing document to succeed', async () => {
+    const filePath = await writeImportFile(importFixture());
+    await expect(service().acceptSuccessor({ filePath })).rejects.toBeInstanceOf(PrdNotFoundError);
+  });
+});
+
+// ── No second writer: no code path reads exported Markdown back into authority ─
+
+describe('no-second-writer invariant (source-level)', () => {
+  // Resolve the package source dir whether vitest runs from the package root
+  // (turbo/pnpm test) or from the worktree root.
+  function resolveSrcDir(): string {
+    const candidates = [path.resolve('src'), path.resolve('packages/prdy/src')];
+    return candidates.find((dir) => existsSync(path.join(dir, 'service.ts'))) ?? candidates[0]!;
+  }
+
+  const srcDir = resolveSrcDir();
+  const sourceFiles = [
+    'cli.ts',
+    'index.ts',
+    'prd.ts',
+    'service.ts',
+    'templates.ts',
+    'types.ts',
+    'wizard.ts',
+  ];
+
+  it('no source file in @mosaicstack/prdy reads a .md file', async () => {
+    for (const file of sourceFiles) {
+      const text = await readFile(path.join(srcDir, file), 'utf8');
+      const readLines = text
+        .split('\n')
+        .map((line) => line.trim())
+        .filter((line) => /readFile|readFileSync|createReadStream/.test(line));
+
+      for (const line of readLines) {
+        expect(line.includes('.md'), `${file} reads a Markdown file: ${line}`).toBe(false);
+      }
+    }
+  });
+
+  it('the mosaic prdy/mission adapters never read a .md file', async () => {
+    const adapterDir = path.resolve(srcDir, '..', '..', 'mosaic', 'src', 'commands');
+    for (const file of ['prdy.ts', 'mission.ts']) {
+      const text = await readFile(path.join(adapterDir, file), 'utf8');
+      expect(text.includes("'.md'") || text.includes('.md`'), `${file} references a .md path`).toBe(
+        false,
+      );
+    }
+  });
+});

packages/prdy/src/service.ts

@@ -0,0 +1,379 @@
+import { promises as fs } from 'node:fs';
+import path from 'node:path';
+
+import yaml from 'js-yaml';
+
+import { createPrd, listPrds, parsePrdDocument, prdDirectory, savePrd } from './prd.js';
+import type {
+  PrdCreateInput,
+  PrdDocument,
+  PrdExportInput,
+  PrdExportResult,
+  PrdImportInput,
+  PrdImportResult,
+  PrdLinkMissionInput,
+  PrdMissionLinkage,
+  PrdPlanForMissionInput,
+  PrdServiceOptions,
+  PrdUpdateInput,
+} from './types.js';
+
+/**
+ * PrdService is the SINGLE authority surface for PRD documents.
+ *
+ * Every mutation path (CLI wizard, `mosaic mission --plan`, import) routes
+ * through this service; the YAML store under `docs/prdy/` is the authority and
+ * exported Markdown is a generated view that no code path reads back.
+ */
+
+// ── Typed errors ───────────────────────────────────────────────────────────────
+
+export class PrdError extends Error {
+  constructor(
+    message: string,
+    readonly code: string,
+  ) {
+    super(message);
+    this.name = 'PrdError';
+  }
+}
+
+export class PrdNotFoundError extends PrdError {
+  constructor(message: string) {
+    super(message, 'PRD_NOT_FOUND');
+    this.name = 'PrdNotFoundError';
+  }
+}
+
+export class PrdUpdateError extends PrdError {
+  constructor(message: string) {
+    super(message, 'PRD_UPDATE_INVALID');
+    this.name = 'PrdUpdateError';
+  }
+}
+
+/** Structural refusal: the import payload failed schema validation. Nothing is written. */
+export class PrdImportInvalidError extends PrdError {
+  constructor(
+    message: string,
+    readonly issues?: string,
+  ) {
+    super(message, 'PRD_IMPORT_INVALID');
+    this.name = 'PrdImportInvalidError';
+  }
+}
+
+/**
+ * Conflict refusal: an existing PRD shares the imported id but the content
+ * diverges. Carries a PROPOSED successor (existing version + 1) that is only
+ * persisted via an explicit {@link PrdService.acceptSuccessor} call — import
+ * never overwrites and never merges.
+ */
+export class PrdImportConflictError extends PrdError {
+  constructor(
+    message: string,
+    readonly existing: PrdDocument,
+    readonly proposal: PrdDocument,
+  ) {
+    super(message, 'PRD_IMPORT_CONFLICT');
+    this.name = 'PrdImportConflictError';
+  }
+}
+
+// ── Service ────────────────────────────────────────────────────────────────────
+
+/** The generated-view label carried by every Markdown export. */
+export const PRD_GENERATED_VIEW_LABEL = 'generated view — do not edit';
+
+export class PrdService {
+  private readonly projectPath: string;
+
+  constructor(options: PrdServiceOptions) {
+    this.projectPath = options.projectPath;
+  }
+
+  /** Create a new PRD (version 1, draft) in the authority store. */
+  async create(input: PrdCreateInput): Promise<PrdDocument> {
+    return createPrd({
+      name: input.name,
+      projectPath: this.projectPath,
+      template: input.template,
+      interactive: false,
+    });
+  }
+
+  /** Read a PRD by id, or the most recently updated one. */
+  async get(id?: string): Promise<PrdDocument> {
+    const documents = await listPrds(this.projectPath);
+
+    if (id === undefined) {
+      const latest = documents[0];
+      if (latest === undefined) {
+        throw new PrdNotFoundError(`No PRD documents found under docs/prdy/ for this project`);
+      }
+      return latest;
+    }
+
+    const match = documents.find((doc) => doc.id === id);
+    if (match === undefined) {
+      throw new PrdNotFoundError(`PRD id not found: ${id}`);
+    }
+    return match;
+  }
+
+  /** List all PRDs in the authority store (most recently updated first). */
+  async list(): Promise<PrdDocument[]> {
+    return listPrds(this.projectPath);
+  }
+
+  /**
+   * Apply section field patches and bump the content version.
+   * Linkage entries are preserved; linkage writes do NOT bump the version.
+   */
+  async update(input: PrdUpdateInput): Promise<PrdDocument> {
+    const doc = await this.get(input.id);
+
+    for (const patch of input.sections) {
+      const section = doc.sections.find((candidate) => candidate.id === patch.id);
+      if (section === undefined) {
+        throw new PrdUpdateError(`Unknown section id: ${patch.id}`);
+      }
+      for (const [field, value] of Object.entries(patch.fields)) {
+        if (!(field in section.fields)) {
+          throw new PrdUpdateError(`Unknown field "${field}" on section "${patch.id}"`);
+        }
+        section.fields[field] = value;
+      }
+    }
+
+    doc.version += 1;
+    doc.updatedAt = new Date().toISOString();
+    await savePrd(doc);
+    return doc;
+  }
+
+  /**
+   * Record (or refresh) a mission ↔ PRD linkage on the PRD document.
+   * Persisted in the YAML authority, so it survives restarts.
+   */
+  async linkMission(input: PrdLinkMissionInput): Promise<PrdDocument> {
+    const doc = await this.get(input.prdId);
+    return this.applyLinkage(doc, input);
+  }
+
+  /** Read back the mission linkages recorded on a PRD. */
+  async listMissionLinks(prdId?: string): Promise<PrdMissionLinkage[]> {
+    const doc = await this.get(prdId);
+    return doc.missions;
+  }
+
+  /**
+   * Mission planning path: create a PRD for a mission AND persist the
+   * mission↔PRD linkage in a single authority write.
+   */
+  async planForMission(input: PrdPlanForMissionInput): Promise<PrdDocument> {
+    const doc = await this.create({ name: input.name, template: input.template });
+    return this.applyLinkage(doc, {
+      prdId: doc.id,
+      missionId: input.missionId,
+      missionVersion: input.missionVersion,
+      requirementIds: input.requirementIds,
+    });
+  }
+
+  /**
+   * Render the PRD to a Markdown GENERATED VIEW.
+   *
+   * The output carries source identity (PRD id + version + generated-view
+   * label). It is written under `docs/prdy/<id>.md` and is NEVER read back:
+   * the authority store only loads `.yaml`/`.yml` files, and no code path in
+   * this package parses the exported Markdown.
+   */
+  async exportMarkdown(input?: PrdExportInput): Promise<PrdExportResult> {
+    const doc = await this.get(input?.id);
+    const content = renderMarkdown(doc);
+    const filePath = input?.outPath ?? path.join(prdDirectory(doc.projectPath), `${doc.id}.md`);
+
+    await fs.mkdir(path.dirname(filePath), { recursive: true });
+    await fs.writeFile(filePath, content, 'utf8');
+    return { filePath, content };
+  }
+
+  /**
+   * Import a YAML PRD document.
+   *
+   * Structural validation (zod) happens BEFORE anything is proposed or
+   * written. A structurally-valid import is persisted as `draft` — validity is
+   * NOT approval. If an existing PRD shares the id with divergent content, a
+   * typed {@link PrdImportConflictError} is thrown carrying a proposed
+   * successor; the original authority document is left byte-identical on disk.
+   */
+  async importDocument(input: PrdImportInput): Promise<PrdImportResult> {
+    const incoming = await this.readImportFile(input.filePath);
+
+    const existing = (await listPrds(this.projectPath)).find((doc) => doc.id === incoming.id);
+    if (existing === undefined) {
+      const document = this.buildImportedDocument(incoming);
+      await savePrd(document);
+      return { kind: 'created', document };
+    }
+
+    if (canonicalCore(existing) === canonicalCore(incoming)) {
+      return { kind: 'identical', document: existing };
+    }
+
+    throw new PrdImportConflictError(
+      `PRD id "${incoming.id}" already exists with divergent content — refusing to overwrite. ` +
+        `Proposed successor: version ${existing.version + 1} (draft). ` +
+        `Accept explicitly with acceptSuccessor().`,
+      existing,
+      this.buildSuccessor(existing, incoming),
+    );
+  }
+
+  /**
+   * Explicitly accept a conflicted import as a successor version of the
+   * existing PRD. Re-validates the source file before writing; the successor
+   * is persisted with status `draft` (acceptance of the import is not approval
+   * of the PRD) and the existing mission linkages are carried forward.
+   */
+  async acceptSuccessor(input: PrdImportInput): Promise<PrdDocument> {
+    const incoming = await this.readImportFile(input.filePath);
+
+    const existing = (await listPrds(this.projectPath)).find((doc) => doc.id === incoming.id);
+    if (existing === undefined) {
+      throw new PrdNotFoundError(
+        `No existing PRD with id "${incoming.id}" — use importDocument to create it`,
+      );
+    }
+
+    const successor = this.buildSuccessor(existing, incoming);
+    await savePrd(successor);
+    return successor;
+  }
+
+  // ── internals ──────────────────────────────────────────────────────────────
+
+  private async applyLinkage(doc: PrdDocument, input: PrdLinkMissionInput): Promise<PrdDocument> {
+    const entry: PrdMissionLinkage = {
+      missionId: input.missionId,
+      missionVersion: input.missionVersion,
+      prdVersion: doc.version,
+      requirementIds: input.requirementIds ?? [],
+      linkedAt: new Date().toISOString(),
+    };
+
+    // One entry per mission: refresh in place if the mission is already linked.
+    const index = doc.missions.findIndex((m) => m.missionId === entry.missionId);
+    if (index === -1) {
+      doc.missions.push(entry);
+    } else {
+      doc.missions[index] = entry;
+    }
+
+    // Linkage is mission-side metadata, not a content revision: bump the
+    // timestamp only so ids/versions stay stable for consumers.
+    doc.updatedAt = new Date().toISOString();
+    await savePrd(doc);
+    return doc;
+  }
+
+  private async readImportFile(filePath: string): Promise<PrdDocument> {
+    let raw: string;
+    try {
+      raw = await fs.readFile(filePath, 'utf8');
+    } catch (error) {
+      throw new PrdImportInvalidError(`Cannot read import file ${filePath}: ${String(error)}`);
+    }
+
+    let parsed: unknown;
+    try {
+      parsed = yaml.load(raw);
+    } catch (error) {
+      throw new PrdImportInvalidError(`Import file is not valid YAML: ${String(error)}`);
+    }
+
+    try {
+      return parsePrdDocument(parsed);
+    } catch (error) {
+      throw new PrdImportInvalidError(
+        `Import file failed PRD schema validation: ${filePath}`,
+        error instanceof Error ? error.message : String(error),
+      );
+    }
+  }
+
+  private buildImportedDocument(incoming: PrdDocument): PrdDocument {
+    const now = new Date().toISOString();
+    return {
+      ...incoming,
+      // The import lands in THIS project's authority store.
+      projectPath: this.projectPath,
+      // A structurally-valid import is not thereby approved.
+      status: 'draft',
+      version: 1,
+      missions: [],
+      createdAt: now,
+      updatedAt: now,
+    };
+  }
+
+  private buildSuccessor(existing: PrdDocument, incoming: PrdDocument): PrdDocument {
+    return {
+      ...incoming,
+      id: existing.id,
+      projectPath: existing.projectPath,
+      status: 'draft',
+      version: existing.version + 1,
+      missions: existing.missions,
+      createdAt: existing.createdAt,
+      updatedAt: new Date().toISOString(),
+    };
+  }
+}
+
+// ── Markdown rendering (generated view) ───────────────────────────────────────
+
+function canonicalCore(doc: PrdDocument): string {
+  return JSON.stringify([doc.title, doc.template, doc.sections]);
+}
+
+function renderMarkdown(doc: PrdDocument): string {
+  const lines: string[] = [
+    '<!--',
+    `${PRD_GENERATED_VIEW_LABEL}`,
+    `source-of-truth: docs/prdy/${doc.id}.yaml (YAML authority)`,
+    `prd-id: ${doc.id}`,
+    `prd-version: ${doc.version}`,
+    `generated-at: ${new Date().toISOString()}`,
+    '-->',
+    '',
+    `# ${doc.title}`,
+    '',
+    `**Status:** ${doc.status} · **Version:** ${doc.version} · **Template:** ${doc.template}`,
+    '',
+  ];
+
+  if (doc.missions.length > 0) {
+    lines.push('## Mission Linkage', '');
+    for (const mission of doc.missions) {
+      const requirements =
+        mission.requirementIds.length > 0 ? mission.requirementIds.join(', ') : 'none selected';
+      lines.push(
+        `- mission \`${mission.missionId}\` @ version \`${mission.missionVersion}\`` +
+          ` (linked at PRD v${mission.prdVersion}) — requirements: ${requirements}`,
+      );
+    }
+    lines.push('');
+  }
+
+  for (const section of doc.sections) {
+    lines.push(`## ${section.title}`, '');
+    for (const [field, value] of Object.entries(section.fields)) {
+      lines.push(`### ${field}`, '', value.trim().length > 0 ? value : '_Not set_.', '');
+    }
+  }
+
+  lines.push('---', '', `_End of generated view for ${doc.id} v${doc.version}._`, '');
+  return lines.join('\n');
+}

packages/prdy/src/types.ts

@@ -19,13 +19,31 @@ export interface PrdSection {
   fields: Record<string, string>;
 }
 
+/**
+ * Mission ↔ PRD linkage recorded on the PRD document (the YAML authority).
+ *
+ * `missionVersion` is the mission-side revision marker available to the CLI
+ * (the gateway exposes `updatedAt` for missions — there is no numeric mission
+ * version yet). `prdVersion` snapshots the PRD content version at link time.
+ */
+export interface PrdMissionLinkage {
+  missionId: string;
+  missionVersion: string;
+  prdVersion: number;
+  requirementIds: string[];
+  linkedAt: string;
+}
+
 export interface PrdDocument {
   id: string;
   title: string;
   status: PrdStatus;
   projectPath: string;
   template: string;
+  /** Content revision counter. Bumped by updates and accepted imports. */
+  version: number;
   sections: PrdSection[];
+  missions: PrdMissionLinkage[];
   createdAt: string;
   updatedAt: string;
 }
@@ -36,3 +54,60 @@ export interface CreatePrdOptions {
   template?: string;
   interactive?: boolean;
 }
+
+// ── PrdService surface (single authority entry point) ─────────────────────────
+
+export interface PrdServiceOptions {
+  projectPath: string;
+}
+
+export interface PrdCreateInput {
+  name: string;
+  template?: string;
+}
+
+export interface PrdSectionPatch {
+  id: string;
+  fields: Record<string, string>;
+}
+
+export interface PrdUpdateInput {
+  /** Defaults to the most recently updated PRD. */
+  id?: string;
+  sections: PrdSectionPatch[];
+}
+
+export interface PrdLinkMissionInput {
+  /** Defaults to the most recently updated PRD. */
+  prdId?: string;
+  missionId: string;
+  missionVersion: string;
+  requirementIds?: string[];
+}
+
+export interface PrdPlanForMissionInput extends PrdLinkMissionInput {
+  name: string;
+  template?: string;
+}
+
+export interface PrdExportInput {
+  /** Defaults to the most recently updated PRD. */
+  id?: string;
+  /** Override the generated-view output path. */
+  outPath?: string;
+}
+
+export interface PrdExportResult {
+  filePath: string;
+  content: string;
+}
+
+/** Discriminated result of a non-conflicting import. */
+export type PrdImportResult =
+  | { kind: 'created'; document: PrdDocument }
+  | { kind: 'identical'; document: PrdDocument };
+
+export interface PrdImportInput {
+  /** Path to a YAML-serialized PRD document (NOT the generated Markdown view). */
+  filePath: string;
+}

packages/prdy/src/wizard.ts

@@ -2,8 +2,8 @@ import path from 'node:path';
 
 import { cancel, intro, isCancel, outro, select, text } from '@clack/prompts';
 
-import { createPrd, savePrd } from './prd.js';
-import type { CreatePrdOptions, PrdDocument } from './types.js';
+import { PrdService } from './service.js';
+import type { CreatePrdOptions, PrdDocument, PrdSectionPatch } from './types.js';
 
 interface WizardAnswers {
   goals: string;
@@ -11,20 +11,41 @@ interface WizardAnswers {
   milestones: string;
 }
 
-function updateSectionField(doc: PrdDocument, sectionKeyword: string, value: string): void {
-  const section = doc.sections.find((candidate) => candidate.id.includes(sectionKeyword));
+/**
+ * Translate wizard answers into section patches using the same keyword
+ * matching the wizard always used (first section whose id contains the
+ * keyword, then first field whose name contains it, else first field).
+ */
+function buildWizardPatches(doc: PrdDocument, answers: WizardAnswers): PrdSectionPatch[] {
+  const bySection = new Map<string, PrdSectionPatch>();
 
-  if (section === undefined) {
-    return;
-  }
+  const add = (keyword: string, value: string): void => {
+    const section = doc.sections.find((candidate) => candidate.id.includes(keyword));
+    if (section === undefined) {
+      return;
+    }
 
-  const fieldName =
-    Object.keys(section.fields).find((field) => field.toLowerCase().includes(sectionKeyword)) ??
-    Object.keys(section.fields)[0];
+    const fieldName =
+      Object.keys(section.fields).find((field) => field.toLowerCase().includes(keyword)) ??
+      Object.keys(section.fields)[0];
 
-  if (fieldName !== undefined) {
-    section.fields[fieldName] = value;
-  }
+    if (fieldName === undefined || section.fields[fieldName] === value) {
+      return;
+    }
+
+    const existing = bySection.get(section.id);
+    if (existing === undefined) {
+      bySection.set(section.id, { id: section.id, fields: { [fieldName]: value } });
+    } else {
+      existing.fields[fieldName] = value;
+    }
+  };
+
+  add('goal', answers.goals);
+  add('constraint', answers.constraints);
+  add('milestone', answers.milestones);
+
+  return [...bySection.values()];
 }
 
 async function promptText(message: string, initialValue = ''): Promise<string> {
@@ -63,15 +84,10 @@ async function promptTemplate(template?: string): Promise<string> {
   return choice;
 }
 
-function applyWizardAnswers(doc: PrdDocument, answers: WizardAnswers): PrdDocument {
-  updateSectionField(doc, 'goal', answers.goals);
-  updateSectionField(doc, 'constraint', answers.constraints);
-  updateSectionField(doc, 'milestone', answers.milestones);
-
-  doc.updatedAt = new Date().toISOString();
-  return doc;
-}
-
+/**
+ * Interactive PRD wizard. All writes go through PrdService — the wizard is a
+ * prompt layer, never a second writer path.
+ */
 export async function runPrdWizard(options: CreatePrdOptions): Promise<PrdDocument> {
   intro('Mosaic PRD wizard');
 
@@ -82,20 +98,15 @@ export async function runPrdWizard(options: CreatePrdOptions): Promise<PrdDocume
   const constraints = await promptText('Key constraints');
   const milestones = await promptText('Planned milestones');
 
-  const doc = await createPrd({
-    ...options,
+  const service = new PrdService({ projectPath: options.projectPath });
+  const doc = await service.create({
     name,
     template,
-    interactive: true,
   });
 
-  const updated = applyWizardAnswers(doc, {
-    goals,
-    constraints,
-    milestones,
-  });
-
-  await savePrd(updated);
+  const patches = buildWizardPatches(doc, { goals, constraints, milestones });
+  const updated =
+    patches.length > 0 ? await service.update({ id: doc.id, sections: patches }) : doc;
 
   outro(`PRD created: ${path.join(updated.projectPath, 'docs', 'prdy', `${updated.id}.yaml`)}`);
 

packages/quality-rails/README.md

@@ -0,0 +1,63 @@
+# @mosaicstack/quality-rails
+
+Quality-rails scaffolding and — since RI-3-002 (RI-N4) — the **typed
+quality-rails evaluator**: the single authoritative producer of check verdicts
+for the checks it owns.
+
+## Evaluator (RI-N4)
+
+Every verdict is typed and fail-closed:
+
+```
+{ status: 'passed' | 'failed' | 'blocked' | 'error' | 'not-applicable',
+  checkId, checkVersion, subject, reason }
+```
+
+Missing implementations, missing inputs, unknown check ids, process errors,
+timeouts, and malformed probe output can never become `passed` or an
+unqualified skip — they surface as `blocked`/`error` with a reason (vocabulary
+mirrors MACP's `GateStatus` discipline).
+
+- Check definitions live as **data** with a version and a sha256 content
+  digest (`definitionDigest`); every recorded verdict names the definition
+  version that produced it.
+- Check sets are selected **per subject kind** (`node`, `python`, `rust`,
+  `monorepo`, `unknown`) via the versioned, digested check-set policy — this
+  repository (a `monorepo` subject) does not share the node template's file
+  list.
+- Shell probes stay **thin adapters**: the TS evaluator invokes them and owns
+  the verdict parsing (e.g. QC-20's planted-commit probe).
+
+### Owned checks
+
+| check id                    | canonical check | mechanism                                                              |
+| --------------------------- | --------------- | ---------------------------------------------------------------------- |
+| `qc-19-rails-files-present` | QC-19           | typed absorption of the former presence-only `check`/`doctor` loop     |
+| `qc-20-enforcement-verify`  | QC-20           | thin shell adapter (framework `verify.sh`); verdict parsing owned here |
+
+The canonical check ids QC-1..QC-21 and their dispositions are defined in
+`docs/release-integrity/probe-inventory.md` (the RI-3-001 inventory — the
+evaluator's input, not its output).
+
+### Usage
+
+```sh
+# CLI (same typed report as the programmatic API)
+node dist/cli.js quality-rails evaluate --project <path> [--probe-path <verify.sh>] [--json]
+node dist/cli.js quality-rails check --project <path> [--json]   # QC-19 only, fail-closed exit
+```
+
+```ts
+import { evaluateSubject } from '@mosaicstack/quality-rails';
+
+const report = await evaluateSubject({ subjectPath: '/path/to/project' });
+// report.state: 'passed' | 'failed' | 'blocked' | 'error'
+```
+
+`pnpm verify:release` invokes this evaluator as its `quality-rails` stage
+(canonical-only stage, QC-19 on the monorepo subject).
+
+## Scaffolding (pre-existing)
+
+`init` scaffolds rails files per detected kind/profile; `doctor` is advisory
+and reports typed states.

packages/quality-rails/src/cli-evaluate.spec.ts

@@ -0,0 +1,194 @@
+import { mkdir, mkdtemp, writeFile, chmod } from 'node:fs/promises';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+
+import { createQualityRailsCli } from './cli.js';
+import { QC_19_RAILS_FILES_PRESENT } from './evaluator/definitions.js';
+import { evaluateSubject } from './evaluator/runner.js';
+import type { EvaluationReport } from './evaluator/types.js';
+
+// CLI ↔ programmatic contract (RI-3-002): the same subject must produce the
+// same typed verdicts through every entry point the card adds — the
+// `evaluate`/`check` CLI surfaces and the `evaluateSubject` API.
+
+async function makeTempDir(): Promise<string> {
+  return mkdtemp(join(tmpdir(), 'qr-cli-'));
+}
+
+async function scaffoldNodeFixture(skip: string[] = []): Promise<string> {
+  const dir = await makeTempDir();
+  await writeFile(join(dir, 'package.json'), '{}\n', 'utf8');
+  for (const relativePath of [
+    '.eslintrc',
+    'biome.json',
+    '.githooks/pre-commit',
+    'PR-CHECKLIST.md',
+  ]) {
+    if (skip.includes(relativePath)) continue;
+    await mkdir(join(dir, relativePath, '..'), { recursive: true });
+    await writeFile(join(dir, relativePath), 'fixture\n', 'utf8');
+  }
+  return dir;
+}
+
+async function makePassingProbe(dir: string): Promise<string> {
+  const scriptPath = join(dir, 'probe-pass.sh');
+  await writeFile(
+    scriptPath,
+    [
+      '#!/bin/bash',
+      'echo "✅ PASS: Type errors blocked"',
+      'echo "✅ PASS: Lint errors blocked"',
+      'echo "Verification Summary"',
+      'exit 0',
+    ].join('\n') + '\n',
+    'utf8',
+  );
+  await chmod(scriptPath, 0o755);
+  return scriptPath;
+}
+
+describe('CLI entry points vs the programmatic evaluator', () => {
+  let logSpy: ReturnType<typeof vi.spyOn>;
+  let previousExitCode: string | number | undefined;
+
+  beforeEach(() => {
+    logSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+    previousExitCode = process.exitCode ?? undefined;
+  });
+
+  afterEach(() => {
+    logSpy.mockRestore();
+    process.exitCode = previousExitCode;
+  });
+
+  it('evaluate --json produces the SAME typed report as evaluateSubject (full check set + probe)', async () => {
+    const dir = await scaffoldNodeFixture();
+    const probePath = await makePassingProbe(dir);
+
+    const programmatic = await evaluateSubject({
+      subjectPath: dir,
+      inputs: { 'qc-20-enforcement-verify': { probePath } },
+    });
+
+    const program = createQualityRailsCli();
+    await program.parseAsync([
+      'node',
+      'cli.js',
+      'quality-rails',
+      'evaluate',
+      '--project',
+      dir,
+      '--probe-path',
+      probePath,
+      '--json',
+    ]);
+
+    const printed = logSpy.mock.calls.map((call) => String(call[0])).join('\n');
+    const cliReport = JSON.parse(printed) as EvaluationReport;
+    expect(cliReport).toEqual(programmatic);
+    expect(cliReport.state).toBe('passed');
+    expect(process.exitCode).toBe(0);
+  });
+
+  it('check --json produces the SAME QC-19 verdict as evaluateSubject (absorbed loop)', async () => {
+    const dir = await scaffoldNodeFixture(['biome.json', '.githooks/pre-commit']);
+
+    const programmatic = await evaluateSubject({
+      subjectPath: dir,
+      checkIds: [QC_19_RAILS_FILES_PRESENT.id],
+    });
+    expect(programmatic.state).toBe('failed');
+
+    const program = createQualityRailsCli();
+    await program.parseAsync([
+      'node',
+      'cli.js',
+      'quality-rails',
+      'check',
+      '--project',
+      dir,
+      '--json',
+    ]);
+
+    const printed = logSpy.mock.calls.map((call) => String(call[0])).join('\n');
+    const cliReport = JSON.parse(printed) as EvaluationReport;
+    expect(cliReport).toEqual(programmatic);
+    expect(process.exitCode).toBe(1);
+  });
+
+  it('check on a complete subject exits 0 with a passed verdict', async () => {
+    const dir = await scaffoldNodeFixture();
+    const program = createQualityRailsCli();
+    await program.parseAsync([
+      'node',
+      'cli.js',
+      'quality-rails',
+      'check',
+      '--project',
+      dir,
+      '--json',
+    ]);
+    const printed = logSpy.mock.calls.map((call) => String(call[0])).join('\n');
+    const cliReport = JSON.parse(printed) as EvaluationReport;
+    expect(cliReport.state).toBe('passed');
+    expect(process.exitCode).toBe(0);
+  });
+
+  it('evaluate with an unknown check id exits 1 and reports error, never passed', async () => {
+    const dir = await scaffoldNodeFixture();
+    const program = createQualityRailsCli();
+    await program.parseAsync([
+      'node',
+      'cli.js',
+      'quality-rails',
+      'evaluate',
+      '--project',
+      dir,
+      '--check',
+      'qc-99-bogus',
+      '--json',
+    ]);
+    const printed = logSpy.mock.calls.map((call) => String(call[0])).join('\n');
+    const cliReport = JSON.parse(printed) as EvaluationReport;
+    expect(cliReport.results).toHaveLength(1);
+    const first = cliReport.results[0];
+    expect(first?.status).toBe('error');
+    expect(first?.reason).toContain('unknown check id');
+    expect(process.exitCode).toBe(1);
+  });
+
+  it('evaluate on a scaffold subject without --probe-path stays fail-closed (blocked, exit 1)', async () => {
+    const dir = await scaffoldNodeFixture();
+    const program = createQualityRailsCli();
+    await program.parseAsync([
+      'node',
+      'cli.js',
+      'quality-rails',
+      'evaluate',
+      '--project',
+      dir,
+      '--json',
+    ]);
+    const printed = logSpy.mock.calls.map((call) => String(call[0])).join('\n');
+    const cliReport = JSON.parse(printed) as EvaluationReport;
+    const qc20 = cliReport.results.find((r) => r.checkId === 'qc-20-enforcement-verify');
+    expect(qc20).toBeDefined();
+    expect(qc20?.status).toBe('blocked');
+    expect(qc20?.reason).toContain('probePath');
+    expect(cliReport.state).toBe('blocked');
+    expect(process.exitCode).toBe(1);
+  });
+
+  it('doctor stays advisory (no nonzero exit) but reports TYPED states, including blocked', async () => {
+    const dir = await scaffoldNodeFixture();
+    const program = createQualityRailsCli();
+    await program.parseAsync(['node', 'cli.js', 'quality-rails', 'doctor', '--project', dir]);
+
+    const printed = logSpy.mock.calls.map((call) => String(call[0])).join('\n');
+    expect(printed).toContain('blocked: qc-20-enforcement-verify');
+    expect(process.exitCode ?? 0).toBe(0);
+  });
+});