fix(sys1): count project system types in the restore guard and admit the CLI verbs

Sol review sys1-review-r1 (changes 3): - P1: project_system_types joins stack-release.sh COUNTED and the T45 LISTED pin; the post-backup refusal and in-run recount tests now cover it. - P2: the CLI channel admits project.system-types and project.system-types.set; a new test drives both through run() and the real channel module (1/1 red without the fix). - P2: the #811 migration-reader pin moves to 19 steps ending 3t-3u.
feat(plugins,organization): system types as a plug-in kind (REQ-SYS-1, #1873 )
2026-11-09 18:46:36 -06:00 · 2026-11-09 18:46:35 -06:00 · 2026-11-09 18:22:27 -06:00 · 2026-11-09 17:54:06 -06:00 · 2026-11-09 17:38:26 -06:00
65 changed files with 1566 additions and 131 deletions
@@ -6343,3 +6343,5 @@ R5 quote fallback room (#797 D3, 2026-11-06, MVP3 lead): r4 review P2 found that
 2026-11-09 UTC | Organizations friction round, landings #1876-#1881 (#1873) | Before: refactor 00ef0bd30. A Console launched by a relative path showed Request status unavailable, the overview printed the north star as raw markdown, packages/business and the business command spellings were the only names, Quick Setup ended with no route to a north star, an archived org could not be restored from a fresh page, and a dead bus after setup had no browser control. After, each through one Codex Sol xhigh review round plus a lead or builder fix round: #1876 re-execs a relative Console launch with its absolute script path (build 744753d7e, reproduced 121/0; review APPROVE 0/0/1). #1877 F1 renders the north star as sanitized markdown with a short preview (review APPROVE 0/0/1; live retest 4/0 twice). #1878 rename stage B moves packages/business to packages/organization and adds the org command spellings, keeping the business ones and their messages (builder 6828/6, see report; review CHANGES 0/1/0, fixed in e19db4009). #1879 F2 adds the onboarding interview after Quick Setup and on the project page, with human-only north-star approval (`mosaic project north-star --approve`) and no new agent grant (builder 411/0; review CHANGES 0/1/1: a refused start left its button disabled, fixed in 5937a977f along with the P3 stale approval capability). #1880 lands the U0 unified workspace samples, approved by Jason with the four-tile logo kept; the module names stay undecided at his request. #1881 E2E round 5 fixes restore from a fresh page, show an owner bus Start whenever the org list reads the bus down, say room changes are unavailable on org Consoles and recover the composer (builder 258/0; review CHANGES 0/1/0, 231/0: Settings kept Done after the bus died because only opening the org reread health). Lead fix fdd6658a6: every org list read is announced and the open setup redraws on a flip, and app.js reads the list before bus-status so a failed bus-status read cannot skip it; regression red on 8a8edc44b, 18 touched webui files 199/0 (Node 26.12.1, one file at a time). uiorg redeployed at fdd6658a6, 19:53Z. Open follow-ups: a down bus offers both the F3 banner Restart and the Settings Start, focus can move when setup redraws, and a Console stop also stops the org buses it started. Reports: /mnt/storage/scratch/mosaic-lead/reports/org-{reqget-2,f1,rename-b,f2,u0-design,e2e5}-*.md.

 2026-11-09 UTC, organizations F3 (#1873, PR #1884, a8f9f0957). The WebUI restarts the Console (supervised Consoles exit and `mosaic console start` relaunches them), restarts an organization's bus from the bus-down banner with a done receipt, and sends the owner's routing, agent, instance, name, assistant, limits and model proxy writes to the selected organization's bus. Routing apply lists how a change reaches each saved agent and offers Restart NAME now. Console restarts, bus restarts and routing, agent and instance changes append to `<dataRoot>/console/actions.jsonl`. Builder plus two refactor merges: combined list 354/0 on 999d173fd. Sol review CHANGES 1/0/1. P1: on a `--dev-local-owner` Console a local agent can send the right Origin and Fetch Metadata headers and reach these controls. The pinned startup warning and the accepted no-auth dev flags already cover this, but the README claimed no agent reaches them. Lead decision: correct the README and file the cooperative local-agent peer refusal as #1883, without building it in this round. P3: the instances route wrote no trail line. Fixed in 0a73279d6; the regression test fails on 999d173fd and passes on the fix. After the refactor merge, 25 touched or README-reading files 195/0 (Node 26.12.1, one file at a time, env -i). uiorg redeployed at a8f9f0957, 22:45Z; live config offers consoleRestart and org settingsSend. Correction to this session's process: after the test run completed I replied "No response requested" and stopped until Jason asked. Open follow-ups: defect l (a bus restart after adding a credentialed agent can refuse to start), the bus restart refusal code, a stale-lock Recover control, one control for banner Restart and Settings Start, #1883. Report: /mnt/storage/scratch/mosaic-lead/reports/org-f3-review.md.
+
+2026-11-09 UTC, PRD 1.20 and defect l (#1873, #1886; PRs #1887 03fe321b1 and #1888 7a97cfc4f). PRD 1.20: Jason approved draft 2 at 22:57Z ("The file looks fine other than that"; the Montage module name stays deferred). The PRD now has 118 requirements, with REQ-WS-1..8, REQ-AGENT-1..3, REQ-SYS-1..2, REQ-ACCT-1..2 and REQ-SETUP-1..2 added and REQ-ASSIST-1, REQ-USER-1, REQ-TASK-1 and REQ-WEB-3 amended. Builder Codex Terra xhigh declined to commit because stack-copy failed 20/1 (node-gyp missing from the test Node's npm); that failure is pre-existing on 483eccb3d, so the lead committed. Sol review APPROVE 0 (word-for-word diff against draft 2, catalog order, both requirements tests). Defect l: before, an agent that declared a store credential made the next bus start refuse, because Credentials refuses a missing store root and only issue() created it. After: start creates the root 0700 when any reference names the store; a root that exists with loose modes or as a symlink still refuses. Two new credential-verbs tests fail on the parent. Bus suite 171 files one at a time, 1713/0 (Node 26.12.1, env -i). Sol review APPROVE 0. uiorg redeployed at 7a97cfc4f, 23:15Z. Follow-up: the stack-copy node-gyp test environment. Reports: /mnt/storage/scratch/mosaic-lead/reports/{prd120-land,prd120-review,defectl-review}.md.
@@ -2122,3 +2122,4 @@ are never rewritten or removed; corrections are new entries.
 2026-11-07 UTC | Claude implementation sub-agent | Organizations S6 WebUI create and guided setup on org/s6 | Settings > Organizations: template form with JSON preview, C2 create/update with if-revision, setup cards for checkout, repositories and bus; webui suite 974/975 (inherited dev-owner test failure). Report and screenshots: /mnt/storage/scratch/mosaic-lead/uidev/org-release/report-s6.md. No push, merge or deployment.
 2026-11-07 UTC | Codex implementation sub-agent | Organizations release fix round 1 on ui-org-r1 | Local candidate for independent review; verification and findings recorded in /mnt/storage/scratch/mosaic-lead/uidev/org-release/report-fix-r1.md. Queue refused linked worktree; no push, merge or deployment.
 2026-11-09 UTC | Mos (lead, Claude Opus 5.5) | Organizations F3 fix round and landing (#1873) | PR #1884 merged a8f9f0957; review P3 fixed, P1 README corrected with follow-up #1883; 195/0 focused suite; uiorg redeployed 22:45Z.
+2026-11-09 UTC | Mos (lead, Claude Opus 5.5) | PRD 1.20 landing and defect l (#1873, #1886) | PR #1887 merged 03fe321b1, PR #1888 merged 7a97cfc4f; both Sol reviews APPROVE 0; bus suite 1713/0; uiorg redeployed 23:15Z; U1, U2 and U4a builds dispatched.
@@ -311,7 +311,8 @@ scripts/mosaic decide <decision> <option> [--note <text>] [--yes]
 scripts/mosaic trail <task|decision> [--json]
 scripts/mosaic bus start <business> [--pm | --no-launch] [--dev-local-owner] | stop | status [--json]
 scripts/mosaic console start [--dev-local-owner [--dev-insecure-bind ADDR --dev-allow-host NAME[,NAME...]]] [--detach] [--port auto|N]
-scripts/mosaic console stop | status
+scripts/mosaic console stop | status | restart
+scripts/mosaic org reload <org>
 scripts/mosaic talk <role> <text> [--wait SECONDS] [--business <id>]
 scripts/mosaic project create <name> [--repo <repo>] | list [--json]
 scripts/mosaic threads [--project <project>] [--json] [--tester]
@@ -332,6 +333,8 @@ For local development on a named instance only, `mosaic bus start BUSINESS --dev

 `mosaic console start --dev-local-owner --dev-insecure-bind ADDR --dev-allow-host NAME[,NAME...]` opens that dev owner Console to other machines, for UI testing from another device on a trusted LAN. It has no sign-in: anyone who can reach ADDR:PORT acts as the owner. Start, and `mosaic console status` while that Console runs, print `WARNING: dev owner Console listens on ADDR:PORT with no sign-in; anyone who can reach it acts as the owner.` on stderr. ADDR is `0.0.0.0` or an IPv4 address, and a specific address must also be one of the names. NAME is a host name or IPv4 address without a port; give several as one comma-separated value. The Console answers only `NAME:<bound port>` and the loopback names, and takes a write only when Origin is `http://` plus that same Host. A browser on such an http origin sends no Fetch Metadata, so for an allowed NAME a write with that exact Origin and no `Sec-Fetch-Site` counts as same-origin; a `Sec-Fetch-Site` the browser did send is still checked. Both flags are refused without `--dev-local-owner`, and `--dev-insecure-bind` is refused without a `--dev-allow-host`. SSO, preview and tester Consoles stay on loopback. The Console state file records `bind` and `allowHosts`. `mosaic console status` prints the state as JSON (`bind` is `127.0.0.1` for a loopback Console) and never moves a stale state file.

+`mosaic console restart` and `mosaic org reload ORG` are the Console's Settings controls (F3) from a terminal (U1, #1873). Each sends one request to the running Console named in the instance's console state, as the page sends it (the Console's own Host and Origin, `Sec-Fetch-Site: same-origin`, a JSON `{}` body), so the Console applies the same owner, `--send` and origin checks and writes the same action trail, `<dataRoot>/console/actions.jsonl`. Both refuse inside an agent run (exit 3) before reading anything, and refuse with exit 3 when no Console runs. `console restart` works only for a Console started in the foreground by `mosaic console start` (otherwise the Console answers `not-supervised`); it waits up to 30 seconds for the relaunched Console to answer and prints `{"outcome":"restarted","from":OLD,"boot":NEW}`. `org reload ORG` restarts a running bus or starts a stopped one and prints the Console's done receipt. A request that left but got no answer is reported as outcome unknown (exit 1) and is never retried; check `mosaic console status`, `mosaic bus status ORG` and the trail. `mosaic bus restart ORG` remains the trail-less host verb.
+
 The instance processing switch is separate from per-business launches off/on.
 `mosaic halt` durably stops managed processing across every business in the
 selected configuration's data root. The bus stays up for reads and human
@@ -639,3 +639,19 @@ CREATE TRIGGER request_snapshot_events_no_replace BEFORE INSERT ON request_snaps
 CREATE TRIGGER request_project_events_no_update BEFORE UPDATE ON request_project_events BEGIN SELECT RAISE(ABORT, 'request_project_events is append-only'); END;
 CREATE TRIGGER request_project_events_no_delete BEFORE DELETE ON request_project_events BEGIN SELECT RAISE(ABORT, 'request_project_events is append-only'); END;
 CREATE TRIGGER request_project_events_no_replace BEFORE INSERT ON request_project_events WHEN EXISTS (SELECT 1 FROM request_project_events WHERE seq=NEW.seq OR (business=NEW.business AND project=NEW.project AND revision=NEW.revision)) BEGIN SELECT RAISE(ABORT, 'request_project_events is append-only'); END;
+-- Per-project selections are a human-authored append-only settings trail.
+CREATE TABLE project_system_types (
+  seq INTEGER PRIMARY KEY AUTOINCREMENT,
+  at TEXT NOT NULL,
+  business TEXT NOT NULL,
+  project TEXT NOT NULL REFERENCES projects(id),
+  types TEXT NOT NULL,
+  by TEXT NOT NULL
+) STRICT;
+CREATE INDEX project_system_types_project ON project_system_types (business, project, seq);
+CREATE TRIGGER project_system_types_no_update BEFORE UPDATE ON project_system_types BEGIN SELECT RAISE(ABORT, 'project_system_types is append-only'); END;
+CREATE TRIGGER project_system_types_no_delete BEFORE DELETE ON project_system_types BEGIN SELECT RAISE(ABORT, 'project_system_types is append-only'); END;
+CREATE TRIGGER project_system_types_no_replace BEFORE INSERT ON project_system_types WHEN EXISTS (SELECT 1 FROM project_system_types WHERE seq = NEW.seq) BEGIN SELECT RAISE(ABORT, 'project_system_types is append-only'); END;
+CREATE TRIGGER project_system_types_business BEFORE INSERT ON project_system_types
+  WHEN (SELECT business FROM projects WHERE id = NEW.project) IS NOT NEW.business
+  BEGIN SELECT RAISE(ABORT, 'a system types row belongs to its project business'); END;
@@ -165,7 +165,7 @@ export const USER_VERBS = Object.freeze(['project.list', 'thread.create', 'threa
  'thread.share', 'thread.unshare', 'thread.shares']);
 // Row 252 (#1753, design sections 2-3): the only verbs a Console owner cap reaches. Every other verb
 // refuses it human-required before its own checks, and these refuse every other cap.
-export const CONSOLE_VERBS = Object.freeze(['project.remote.get.console', 'project.remote.set.console', 'request.workspace.console', 'request.artifact.console', 'decision.preview.console', 'decision.resolve.console', 'prd.revoke.console', 'request.mode.console', 'request.draft.console',
+export const CONSOLE_VERBS = Object.freeze(['system-types.console', 'project.remote.get.console', 'project.remote.set.console', 'request.workspace.console', 'request.artifact.console', 'decision.preview.console', 'decision.resolve.console', 'prd.revoke.console', 'request.mode.console', 'request.draft.console',
  // Task 3 (#1839): and the owner's intake controls. The reads and writes are the same lifecycle methods the PM's
  // unsuffixed verbs reach, with the owner's verified (provider, iss, sub) as the only caller; the PM-only
  // request.question and the PM's own reads keep their unsuffixed names and refuse a console cap.
@@ -5560,6 +5560,28 @@ export class Broker {
          return result;
        }).catch(e => { throw this.#refused(s, e instanceof BusError ? e : new BusError(e.code ?? 'request-failed'), request); });
      }
+      if (request.verb === 'system-types.console') {
+        if (!s.console || s.human !== this.#business(s.business).human) fail('human-required');
+        keys(args, ['project']);
+        if (!this.#organization) fail('not-configured');
+        const enabled = this.#organization(s.business, 'system-types.current', {}, s.human);
+        if (!Array.isArray(enabled)) fail('not-configured');
+        let project = null;
+        if (args.project !== undefined) {
+          const id = identifier(args.project);
+          if (!this.#store.get('SELECT 1 FROM projects WHERE id=? AND business=?', id, s.business)) fail('project-not-found');
+          const row = this.#store.get('SELECT types FROM project_system_types WHERE business=? AND project=? ORDER BY seq DESC LIMIT 1', s.business, id);
+          const selected = row ? JSON.parse(row.types) : [];
+          project = { project: id, selected, active: selected.filter(x => enabled.includes(x)), inactive: selected.filter(x => !enabled.includes(x)) };
+        }
+        return Promise.resolve(this.#organization(s.business, 'system-types.installed', {}, s.human))
+          .then(installed => {
+            if (!Array.isArray(installed)) fail('not-configured');
+            const result = { installed, enabled, project };
+            this.#secretCheck(result);
+            return result;
+          });
+      }
      if (request.verb === 'project.remote.get.console' || request.verb === 'project.remote.set.console') {
        if (!s.console || s.human !== this.#business(s.business).human) fail('human-required');
        if (!this.#organization) fail('not-configured');
@@ -5666,7 +5688,7 @@ export class Broker {
        if (["limits", "plugins", "instances", "routes", "organization.revision"].includes(request.verb)) keys(args, []);
        else if (request.verb === "plugins.set") {
          keys(args, ["revision", "plugins", "usage"], ["revision", "plugins"]);
-          if (s.tester && object(args.plugins) && Object.hasOwn(args.plugins, 'model-provider')) fail('human-required');
+          if (s.tester && object(args.plugins) && (Object.hasOwn(args.plugins, 'model-provider') || Object.hasOwn(args.plugins, 'system-type'))) fail('human-required');
        }
        // Row 165 (#1662): instances.set is human-only and outside ORGANIZATION_KEYS, so
        // organization.set and the chief of staff's tool never reach it (sage-0918).
@@ -7566,6 +7588,25 @@ export class Broker {
          .filter((p) => !s.user || this.#granted(s, 'project.list', p.id, null))
          .map((p) => (p.state === 'archive' ? { id: p.id, at: p.at, name: p.name, repo: p.repo, archived: true } : { id: p.id, at: p.at, name: p.name, repo: p.repo }));
      }
+      case 'project.system-types':
+      case 'project.system-types.set': {
+        this.#human(s);
+        const write = verb === 'project.system-types.set';
+        keys(a, write ? ['project', 'systemTypes'] : ['project'], write ? ['project', 'systemTypes'] : ['project']);
+        const project = identifier(a.project);
+        if (!this.#store.get('SELECT 1 FROM projects WHERE id=? AND business=?', project, s.business)) fail('project-not-found');
+        // When configured, read the trusted file each time; a stale bus snapshot must not reactivate a disabled type.
+        const enabled = this.#organization ? this.#organization(s.business, 'system-types.current', {}, s.human) : (b.plugins?.['system-type'] ?? []);
+        if (!Array.isArray(enabled)) fail('not-configured');
+        if (write) {
+          if (!Array.isArray(a.systemTypes) || a.systemTypes.some(x => typeof x !== 'string') || new Set(a.systemTypes).size !== a.systemTypes.length) fail('invalid-request');
+          if (a.systemTypes.some(x => !enabled.includes(x))) fail('system-type-not-enabled');
+          this.#store.run('INSERT INTO project_system_types(at,business,project,types,by) VALUES(?,?,?,?,?)', this.#now(), s.business, project, JSON.stringify(a.systemTypes), this.#owner(s));
+        }
+        const row = this.#store.get('SELECT types FROM project_system_types WHERE business=? AND project=? ORDER BY seq DESC LIMIT 1', s.business, project);
+        const selected = row ? JSON.parse(row.types) : [];
+        return { project, selected, active: selected.filter(x => enabled.includes(x)), inactive: selected.filter(x => !enabled.includes(x)) };
+      }
      // #797 MVP3 (owner report 2026-11-06): the owner's reversible retirement of a project. The
      // human gate is project.create's minus the tester carve-out: tester, user and agent sessions
      // are refused here. Each verb appends one project_archives row (the audit trail) and deletes
@@ -0,0 +1,16 @@
+-- Per-project selections are a human-authored append-only settings trail.
+CREATE TABLE project_system_types (
+  seq INTEGER PRIMARY KEY AUTOINCREMENT,
+  at TEXT NOT NULL,
+  business TEXT NOT NULL,
+  project TEXT NOT NULL REFERENCES projects(id),
+  types TEXT NOT NULL,
+  by TEXT NOT NULL
+) STRICT;
+CREATE INDEX project_system_types_project ON project_system_types (business, project, seq);
+CREATE TRIGGER project_system_types_no_update BEFORE UPDATE ON project_system_types BEGIN SELECT RAISE(ABORT, 'project_system_types is append-only'); END;
+CREATE TRIGGER project_system_types_no_delete BEFORE DELETE ON project_system_types BEGIN SELECT RAISE(ABORT, 'project_system_types is append-only'); END;
+CREATE TRIGGER project_system_types_no_replace BEFORE INSERT ON project_system_types WHEN EXISTS (SELECT 1 FROM project_system_types WHERE seq = NEW.seq) BEGIN SELECT RAISE(ABORT, 'project_system_types is append-only'); END;
+CREATE TRIGGER project_system_types_business BEFORE INSERT ON project_system_types
+  WHEN (SELECT business FROM projects WHERE id = NEW.project) IS NOT NEW.business
+  BEGIN SELECT RAISE(ABORT, 'a system types row belongs to its project business'); END;
@@ -22,6 +22,7 @@ import { readSessions, sessionsFile, stopSession } from '../../seat/src/session.
 import { compactionCount, storeDir } from '../../seat/src/compactions.mjs';
 import { publishRemote, workingRepo, WorkingError } from '../../seat/src/working.mjs';
 import { createLoader, hasModule } from '../../plugins/src/loader.mjs';
+import { installedSystemTypes } from '../../plugins/src/system-types.mjs';
 import { pluginSettings } from '../../organization/src/plugin-settings.mjs';
 import { loadManagementClient } from '../../model-proxy/src/client.mjs';
 import { ProxyPage } from './proxy-page.mjs';
@@ -751,6 +752,8 @@ export async function startBroker({
          known.set(id, canonicalJson(next.projects));
          return getProjectRemote(writer, id, args.project);
        }
+        if (verb === 'system-types.installed') return installedSystemTypes();
+        if (verb === 'system-types.current') return settings.current(id).plugins?.['system-type'] ?? [];
        if(verb==='limits')return withTokens(id,settings.read(id));
        if(verb==='plugins')return {...plugins.read(id), available:{harness:levels.names ?? []}};
        // Row 256 (#1761): the actor is the reader, so endProtected is the delete check for that reader.
@@ -13,8 +13,8 @@ import { join, isAbsolute } from 'node:path';
 import { createHash } from 'node:crypto';

 const ddl = readFileSync(new URL('../schema.sql', import.meta.url), 'utf8');
-export const SCHEMA_SHA256 = '1cec88b0b697c648bcab18b45f86d85526aa1701a7619046367e16c38476aee8';
-export const SCHEMA_VERSION = '3t';
+export const SCHEMA_SHA256 = '6f6f0c0fd471b7895648a71aa9f320a769b145da792c4152ee8282006eff30c7';
+export const SCHEMA_VERSION = '3u';
 // Ordered, named offline steps. New schema changes append a step and keep prior DDL pinned.
 const legacyDDL = readFileSync(new URL('./migrations/3b.sql', import.meta.url), 'utf8');
 const LEGACY_SHA256 = '179ffe356d4ff19a49b5ebad39b6c6bfd7771deb8e1b7c55b5e746f039d69e65';
@@ -112,6 +112,9 @@ const migrations = [{
  // and its guards; no existing row changes and nothing is deleted.
  from: '3s', to: '3t',
  sql: readFileSync(new URL('./migrations/3s-3t.sql', import.meta.url), 'utf8'),
+}, {
+  from: '3t', to: '3u',
+  sql: readFileSync(new URL('./migrations/3t-3u.sql', import.meta.url), 'utf8'),
 }];
 const timedTables = [
  'events',
@@ -138,6 +141,7 @@ const timedTables = [
  'request_snapshot_events',
  'request_project_events',
  'project_archives',
+  'project_system_types',
 ];
 const hex = (value) => createHash('sha256').update(value).digest('hex');
 if (hex(ddl) !== SCHEMA_SHA256) throw Error('schema-source-mismatch');
@@ -19,7 +19,7 @@ const here = (p) => new URL(p, import.meta.url);
 const SESSIONS_3L = ['sessions', 'session_defaults', 'thread_claims', 'message_threads', 'thread_opens'];
 // Row 206 (#1704): and the 3l→3m step's thread_shares. thread-shares.test.mjs tests it.
 // Row 271 (#1776): and the 3m→3n step's session_ops and message_cancels. session-clear.test.mjs tests them.
-const later3l = (r) => [...SESSIONS_3L, 'thread_shares', 'session_ops', 'message_cancels', 'project_archives', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events'].includes(r.tbl_name) || ['delivery_same_thread', 'delivery_same_session', 'threads_id_not_session'].includes(r.name);
+const later3l = (r) => [...SESSIONS_3L, 'thread_shares', 'session_ops', 'message_cancels', 'project_archives', 'project_system_types', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events'].includes(r.tbl_name) || ['delivery_same_thread', 'delivery_same_session', 'threads_id_not_session'].includes(r.name);
 function source3h(t) {
  const root = mkdtempSync(join(tmpdir(), 'account-migrate-'));
  t.after(() => rmSync(root, { recursive: true, force: true }));
@@ -94,6 +94,7 @@ async function engine(root, name, { store, schema, step = (s) => s }) {
  copyFileSync(here('../src/migrations/3q-3r.sql'), join(moduleRoot, 'src/migrations/3q-3r.sql'));
  copyFileSync(here('../src/migrations/3r-3s.sql'), join(moduleRoot, 'src/migrations/3r-3s.sql'));
  copyFileSync(here('../src/migrations/3s-3t.sql'), join(moduleRoot, 'src/migrations/3s-3t.sql'));
+  copyFileSync(here('../src/migrations/3t-3u.sql'), join(moduleRoot, 'src/migrations/3t-3u.sql'));
  return (await import(pathToFileURL(join(moduleRoot, 'src/store.mjs')))).Store;
 }

@@ -101,7 +102,7 @@ test('REQ-LIMIT-4 3h copy migrates to 3i: every row keeps its seq, the sequence
  const { root, path } = source3h(t), before = snapshot(path), was = master(path);
  assert.throws(() => new Store(root), /schema-mismatch/);
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  // Every table's rows as they were, usage_records with its seq values and sqlite_sequence with 50.
  assert.deepEqual(migrated3l(snapshot(path, before.columns).rows), before.rows);
  assert.deepEqual(before.rows.usage_records.map(r => r.seq), [1, 2, 3]);
@@ -151,7 +152,7 @@ test('REQ-LIMIT-4 a 3h→3i step that fails partway leaves the store at 3h with
  assert.deepEqual(snapshot(path, before.columns).rows, before.rows);
  // Still a whole 3h store: the real step migrates it.
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(migrated3l(snapshot(path, before.columns).rows), before.rows);
 });

@@ -163,14 +164,14 @@ test('REQ-LIMIT-4 the 3h engine refuses a migrated store, migrating or not, and
    schema: ddl3h,
    store: (source) => source
      .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3h).digest('hex')}';`)
-      .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3h';")
+      .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3h';")
      .replace(/\}, \{\n {2}\/\/ Row 126 \(#1620\)[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables'),
  });
  const pinned = readFileSync(join(root, 'engine-3h/src/store.mjs'), 'utf8');
  assert.ok(pinned.includes("export const SCHEMA_VERSION = '3h';") && !pinned.includes('3h-3i'), 'the 3h engine has no 3h→3i step');
  assert.throws(() => new Store3h(root), /schema-mismatch/);
  assert.throws(() => new Store3h(root, { migrateSchema: true }), /schema-mismatch/);
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(master(path), was);
  assert.deepEqual(snapshot(path, after.columns).rows, after.rows);
 });
@@ -35,7 +35,9 @@ const baselines = {
 // Row 239 (#1745): outcome-unknown-revoked joins OPEN (duckworth-0165 C1), and STATUS gets
 // revision-conflict-revoked 409 and outcome-unknown-revoked 503; no proof or transport change.
 // #1839: artifact Console replies alone may use 2 MiB; the proof and other limits are unchanged.
- "packages/webui/src/bus.mjs": "34fa64ffa17886d86243d7712fdb6f632c22b96412b642d785ddbc05fbd79692",
+ // #1873 U1: humanCall, busCaller, userCall and userCaller take an optional signal and absolute
+ // deadline; userCall shares transport(). Nonces, argv and limits are unchanged.
+ "packages/webui/src/bus.mjs": "3ef8064dd7911f9eee4475b52c74a1d551583a065474b1bcee968cd45f722747",
 };
 const repoFile = path => new URL("../../../" + path, import.meta.url);

@@ -616,7 +616,7 @@ async function database3c(t) {
  let source = readFileSync(here('../src/store.mjs'), 'utf8');
  const pinned = source
    .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3c).digest('hex')}';`)
-    .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3c';")
+    .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3c';")
    .replace(/\}, \{\n {2}from: '3c',[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables');
  assert.notEqual(pinned, source);
  assert.ok(!pinned.includes('3c-3d'), 'the 3c engine has no 3c→3d step');
@@ -640,7 +640,7 @@ test('REQ-ROLE-2, REQ-COS-1: the 3c→3d migration lets the chief of staff end a
  assert.throws(() => new Store(root), /schema-mismatch/);
  const store = new Store(root, { migrateSchema: true });
  t.after(() => store.close());
-  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3t');
+  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
  assert.equal(store.get("SELECT body FROM events WHERE id='preserved'").body, '{"fixture":true}');
  assert.equal(store.get("SELECT holder_run FROM role_claims WHERE role='coder'").holder_run, 'coder-run');
  const b = new Broker({ store, businesses: demo(), organization: null });
@@ -33,7 +33,7 @@ test('explicit 3b copy migration preserves evidence and opens as 3g; normal star
  const original = readFileSync(source);
  assert.throws(() => new Store(root), /schema-mismatch/);
  const store = new Store(root, { migrateSchema: true });
-  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3t');
+  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
  assert.equal(store.get("SELECT body FROM events WHERE id='preserved'").body, '{"fixture":true}');
  assert.equal(store.get('SELECT count(*) n FROM task_comment_cursors').n, 0);
  const epoch = store.get("SELECT value FROM meta WHERE key='comment_cursor_epoch'").value;
@@ -75,15 +75,15 @@ test('named migration registry chains 3b through 3g to a fixture-only future ver
  const sha = createHash('sha256').update(futureDDL).digest('hex');
  let source = readFileSync(new URL('../src/store.mjs', import.meta.url), 'utf8');
  source = source.replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${sha}';`)
-    .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3u';")
-    .replace('}];\nconst timedTables', `}, { from: '3t', to: '3u', sql: ${JSON.stringify(futureSQL)} }];\nconst timedTables`);
+    .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3v';")
+    .replace('}];\nconst timedTables', `}, { from: '3u', to: '3v', sql: ${JSON.stringify(futureSQL)} }];\nconst timedTables`);
  writeFileSync(join(moduleRoot, 'src/store.mjs'), source);
  writeFileSync(join(moduleRoot, 'schema.sql'), futureDDL);
-  for (const name of ['3b.sql', '3b-3c.sql', '3c-3d.sql', '3d-3e.sql', '3e-3f.sql', '3f-3g.sql', '3g-3h.sql', '3h-3i.sql', '3i-3j.sql', '3j-3k.sql', '3k-3l.sql', '3l-3m.sql', '3m-3n.sql', '3n-3o.sql', '3o-3p.sql', '3p-3q.sql', '3q-3r.sql', '3r-3s.sql', '3s-3t.sql'])
+  for (const name of ['3b.sql', '3b-3c.sql', '3c-3d.sql', '3d-3e.sql', '3e-3f.sql', '3f-3g.sql', '3g-3h.sql', '3h-3i.sql', '3i-3j.sql', '3j-3k.sql', '3k-3l.sql', '3l-3m.sql', '3m-3n.sql', '3n-3o.sql', '3o-3p.sql', '3p-3q.sql', '3q-3r.sql', '3r-3s.sql', '3s-3t.sql', '3t-3u.sql'])
    copyFileSync(new URL('../src/migrations/' + name, import.meta.url), join(moduleRoot, 'src/migrations', name));
  const { Store: FutureStore } = await import(pathToFileURL(join(moduleRoot, 'src/store.mjs')));
  const future = new FutureStore(root, { migrateSchema: true });
-  assert.equal(future.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
+  assert.equal(future.get("SELECT value FROM meta WHERE key='schema_version'").value, '3v');
  assert.equal(future.get("SELECT name FROM sqlite_master WHERE name='future_fixture'").name, 'future_fixture');
  assert.equal(future.get("SELECT count(*) n FROM task_comment_cursors").n, 0);
  assert.equal(future.get("SELECT id FROM events").id, 'preserved');
@@ -109,7 +109,7 @@ test('offline command migrates only the supplied fixture root and reports usage
  const command = new URL('../src/migrate-schema.mjs', import.meta.url).pathname;
  const migrated = spawnSync(process.execPath, [command, root], { encoding: 'utf8' });
  assert.equal(migrated.status, 0, migrated.stderr);
-  assert.match(migrated.stdout, /bus schema 3t ready/);
+  assert.match(migrated.stdout, /bus schema 3u ready/);
  new Store(root).close();
  const usage = spawnSync(process.execPath, [command], { encoding: 'utf8' });
  assert.equal(usage.status, 2);
@@ -89,7 +89,7 @@ function setup(t) {
 // #797 / #1839 adds the owner-only artifact read to the existing decision and request controls;
 // no unsuffixed verb is ever a console verb.
 test('N4: owner Console verbs have an explicit immutable whitelist and exclude decision.resolve', () => {
-  assert.deepEqual([...CONSOLE_VERBS], ['project.remote.get.console', 'project.remote.set.console', 'request.workspace.console', 'request.artifact.console', 'decision.preview.console', 'decision.resolve.console', 'prd.revoke.console', 'request.mode.console', 'request.draft.console',
+  assert.deepEqual([...CONSOLE_VERBS], ['system-types.console', 'project.remote.get.console', 'project.remote.set.console', 'request.workspace.console', 'request.artifact.console', 'decision.preview.console', 'decision.resolve.console', 'prd.revoke.console', 'request.mode.console', 'request.draft.console',
    'request.get.console', 'request.projects.console', 'request.answer.console', 'request.attach.console', 'request.cancel.console']);
  assert.ok(CONSOLE_VERBS.every(verb => verb.endsWith('.console')));
  assert.equal(CONSOLE_VERBS.includes('decision.resolve'), false);
@@ -36,11 +36,11 @@ function source3j(t) {
 const SESSIONS_3L = ['sessions', 'session_defaults', 'thread_claims', 'message_threads', 'thread_opens'];
 // Row 206 (#1704): and the 3l→3m step's thread_shares. thread-shares.test.mjs tests it.
 // Row 271 (#1776): and the 3m→3n step's session_ops and message_cancels. session-clear.test.mjs tests them.
-const later3l = (r) => [...SESSIONS_3L, 'thread_shares', 'session_ops', 'message_cancels', 'project_archives', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events'].includes(r.tbl_name) || ['delivery_same_thread', 'delivery_same_session', 'threads_id_not_session'].includes(r.name);
+const later3l = (r) => [...SESSIONS_3L, 'thread_shares', 'session_ops', 'message_cancels', 'project_archives', 'project_system_types', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events'].includes(r.tbl_name) || ['delivery_same_thread', 'delivery_same_session', 'threads_id_not_session'].includes(r.name);
 function rows(path) {
  const db = new DatabaseSync(path, { readOnly: true });
  try {
-    return Object.fromEntries(db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name NOT IN ('gitea_users','gitea_grants','sessions','session_defaults','thread_shares','session_ops','message_cancels','request_events','request_effects','request_snapshots','request_snapshot_events','request_project_events','project_archives')").all()
+    return Object.fromEntries(db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name NOT IN ('gitea_users','gitea_grants','sessions','session_defaults','thread_shares','session_ops','message_cancels','request_events','request_effects','request_snapshots','request_snapshot_events','request_project_events','project_archives','project_system_types')").all()
      .map(({ name }) => [name, db.prepare(`SELECT * FROM ${name} ORDER BY rowid`).all()
        .filter(r => name !== 'meta' || !['schema_version', 'schema_digest'].includes(r.key)).map(r => ({ ...r }))]));
  } finally { db.close(); }
@@ -84,6 +84,7 @@ async function engine(root, name, { store, schema, step = (s) => s }) {
  copyFileSync(here('../src/migrations/3q-3r.sql'), join(moduleRoot, 'src/migrations/3q-3r.sql'));
  copyFileSync(here('../src/migrations/3r-3s.sql'), join(moduleRoot, 'src/migrations/3r-3s.sql'));
  copyFileSync(here('../src/migrations/3s-3t.sql'), join(moduleRoot, 'src/migrations/3s-3t.sql'));
+  copyFileSync(here('../src/migrations/3t-3u.sql'), join(moduleRoot, 'src/migrations/3t-3u.sql'));
  return (await import(pathToFileURL(join(moduleRoot, 'src/store.mjs')))).Store;
 }
 function fresh(t) {
@@ -105,7 +106,7 @@ test('3j copy migrates to 3k: every row kept, and sqlite_master gains only the t
  const { root, path } = source3j(t), before = rows(path), was = master(path);
  assert.throws(() => new Store(root), /schema-mismatch/);
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(migrated3l(rows(path)), before);
  const now = master(path);
  assert.deepEqual(now.filter(r => !NEW.includes(r.name) && !later3l(r)), was.filter(r => !later3l(r)));
@@ -131,7 +132,7 @@ test('a 3j→3k step that fails partway leaves the store at 3j with every row an
  assert.deepEqual(master(path), was);
  assert.deepEqual(rows(path), before);
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
 });

 test('the 3j engine refuses a migrated store, migrating or not, and leaves it as it was', async t => {
@@ -142,14 +143,14 @@ test('the 3j engine refuses a migrated store, migrating or not, and leaves it as
    schema: ddl3j,
    store: (source) => source
      .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3j).digest('hex')}';`)
-      .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3j';")
+      .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3j';")
      .replace(/\}, \{\n {2}\/\/ Row 236 \(#1742[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables'),
  });
  const pinned = readFileSync(join(root, 'engine-3j/src/store.mjs'), 'utf8');
  assert.ok(pinned.includes("export const SCHEMA_VERSION = '3j';") && !pinned.includes('3j-3k'), 'the 3j engine has no 3j→3k step');
  assert.throws(() => new Store3j(root), /schema-mismatch/);
  assert.throws(() => new Store3j(root, { migrateSchema: true }), /schema-mismatch/);
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(master(path), was);
  assert.deepEqual(rows(path), after);
 });
@@ -22,7 +22,7 @@ const LATER = ['gitea_users', 'gitea_grants', 'sqlite_autoindex_gitea_users_1',
 const SESSIONS_3L = ['sessions', 'session_defaults', 'thread_claims', 'message_threads', 'thread_opens'];
 // Row 206 (#1704): and the 3l→3m step's thread_shares. thread-shares.test.mjs tests it.
 // Row 271 (#1776): and the 3m→3n step's session_ops and message_cancels. session-clear.test.mjs tests them.
-const later3l = (r) => [...SESSIONS_3L, 'thread_shares', 'session_ops', 'message_cancels', 'project_archives', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events'].includes(r.tbl_name) || ['delivery_same_thread', 'delivery_same_session', 'threads_id_not_session'].includes(r.name);
+const later3l = (r) => [...SESSIONS_3L, 'thread_shares', 'session_ops', 'message_cancels', 'project_archives', 'project_system_types', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events'].includes(r.tbl_name) || ['delivery_same_thread', 'delivery_same_session', 'threads_id_not_session'].includes(r.name);
 function source3i(t) {
  const root = mkdtempSync(join(tmpdir(), 'grant-migrate-'));
  t.after(() => rmSync(root, { recursive: true, force: true }));
@@ -42,7 +42,7 @@ function source3i(t) {
 function rows(path) {
  const db = new DatabaseSync(path, { readOnly: true });
  try {
-    return Object.fromEntries(db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name NOT IN ('hosts','host_grants','gitea_users','gitea_grants','sessions','session_defaults','thread_shares','session_ops','message_cancels','request_events','request_effects','request_snapshots','request_snapshot_events','request_project_events','project_archives')").all()
+    return Object.fromEntries(db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name NOT IN ('hosts','host_grants','gitea_users','gitea_grants','sessions','session_defaults','thread_shares','session_ops','message_cancels','request_events','request_effects','request_snapshots','request_snapshot_events','request_project_events','project_archives','project_system_types')").all()
      .map(({ name }) => [name, db.prepare(`SELECT * FROM ${name} ORDER BY rowid`).all()
        .filter(r => name !== 'meta' || !['schema_version', 'schema_digest'].includes(r.key)).map(r => ({ ...r }))]));
  } finally { db.close(); }
@@ -87,6 +87,7 @@ async function engine(root, name, { store, schema, step = (s) => s }) {
  copyFileSync(here('../src/migrations/3q-3r.sql'), join(moduleRoot, 'src/migrations/3q-3r.sql'));
  copyFileSync(here('../src/migrations/3r-3s.sql'), join(moduleRoot, 'src/migrations/3r-3s.sql'));
  copyFileSync(here('../src/migrations/3s-3t.sql'), join(moduleRoot, 'src/migrations/3s-3t.sql'));
+  copyFileSync(here('../src/migrations/3t-3u.sql'), join(moduleRoot, 'src/migrations/3t-3u.sql'));
  return (await import(pathToFileURL(join(moduleRoot, 'src/store.mjs')))).Store;
 }
 function fresh(t) {
@@ -110,7 +111,7 @@ test('3i copy migrates to 3j: every row kept, and sqlite_master gains only the t
  const { root, path } = source3i(t), before = rows(path), was = master(path);
  assert.throws(() => new Store(root), /schema-mismatch/);
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(migrated3l(rows(path)), before);
  const now = master(path).filter(r => !LATER.includes(r.name));
  assert.deepEqual(now.filter(r => !NEW.includes(r.name) && !later3l(r)), was.filter(r => !later3l(r)));
@@ -135,7 +136,7 @@ test('a 3i→3j step that fails partway leaves the store at 3i with every row an
  assert.deepEqual(master(path), was);
  assert.deepEqual(rows(path), before);
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
 });

 test('the 3i engine refuses a migrated store, migrating or not, and leaves it as it was', async t => {
@@ -146,14 +147,14 @@ test('the 3i engine refuses a migrated store, migrating or not, and leaves it as
    schema: ddl3i,
    store: (source) => source
      .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3i).digest('hex')}';`)
-      .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3i';")
+      .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3i';")
      .replace(/\}, \{\n {2}\/\/ Row 234 \(#1740\)[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables'),
  });
  const pinned = readFileSync(join(root, 'engine-3i/src/store.mjs'), 'utf8');
  assert.ok(pinned.includes("export const SCHEMA_VERSION = '3i';") && !pinned.includes('3i-3j'), 'the 3i engine has no 3i→3j step');
  assert.throws(() => new Store3i(root), /schema-mismatch/);
  assert.throws(() => new Store3i(root, { migrateSchema: true }), /schema-mismatch/);
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(master(path), was);
  assert.deepEqual(rows(path), after);
 });
@@ -65,7 +65,7 @@ test('3f copy migrates to 3g preserving every old column/row, with an empty inst
  assert.throws(() => new Store(root), /schema-mismatch/);
  const store = new Store(root, { migrateSchema: true });
  try {
-    assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3t');
+    assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
    assert.deepEqual({ ...store.get('SELECT to_name FROM messages') }, { to_name: null });
    assert.equal(store.get('SELECT count(*) AS n FROM instance_names').n, 0);
    assert.deepEqual({ ...store.get('SELECT spec_path,spec_commit FROM decisions') }, { spec_path: 'docs/spec.md', spec_commit: 'c'.repeat(40) });
@@ -198,6 +198,7 @@ test('3p through 3s migration preserves existing request rows and the append-onl
  const path = join(root, 'bus/bus.sqlite'), ddl = readFileSync(new URL('../schema.sql', import.meta.url), 'utf8')
    // 3s-3t (#797) adds project_archives; the 3p fixture predates it and the replayed chain recreates it.
    .replace(readFileSync(new URL('../src/migrations/3s-3t.sql', import.meta.url), 'utf8'), '')
+    .replace(readFileSync(new URL('../src/migrations/3t-3u.sql', import.meta.url), 'utf8'), '')
    .replace(",'prd.submitted','prd.activated','prd.invalidated','question.asked','question.answered','attach.selected','mode.changed','advanced'", '');
  const db = new DatabaseSync(path); db.exec(ddl);
  const at = '2026-11-03T00:00:00.000Z';
@@ -213,7 +214,7 @@ test('3p through 3s migration preserves existing request rows and the append-onl
  assert.throws(() => new Store(root), /schema-mismatch/);
  const store = new Store(root, { migrateSchema: true }); t.after(() => store.close());
  assert.deepEqual(store.all('SELECT * FROM request_events'), before);
-  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3t');
+  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
  store.run("INSERT INTO request_events(business,request,revision,kind,at,body) VALUES('demo','r',2,'prd.submitted',?,'{}')", at);
  assert.throws(() => store.run('DELETE FROM request_events'), /append-only/);
  assert.throws(() => store.run("UPDATE request_events SET body='{}'"), /append-only/);
@@ -143,7 +143,7 @@ const here = (p) => new URL(p, import.meta.url);
 const migrationSQL = readFileSync(here('../src/migrations/3s-3t.sql'), 'utf8');
 const currentDDL = readFileSync(here('../schema.sql'), 'utf8');
 assert.equal(currentDDL.split(migrationSQL).length, 2, 'schema.sql holds the 3s→3t step exactly once');
-const ddl3s = currentDDL.replace(migrationSQL, '');
+const ddl3s = currentDDL.replace(migrationSQL, '').replace(readFileSync(here('../src/migrations/3t-3u.sql'), 'utf8'), '');

 function source3s(t) {
  const root = mkdtempSync(join(tmpdir(), 'project-archive-3s-'));
@@ -178,7 +178,7 @@ test('a 3s store migrates to 3t: project_archives is new and empty, every row st
  assert.deepEqual(master(path), was, 'the refused open changed nothing');
  const store = new Store(root, { migrateSchema: true });
  t.after(() => store.close());
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.equal(store.get("SELECT id FROM events").id, 'preserved');
  assert.equal(store.get("SELECT name FROM projects").name, 'kept');
  assert.deepEqual(store.all('SELECT seq,at,business,project,op,by FROM project_archives'), []);
@@ -211,7 +211,7 @@ test('the 3s engine refuses a 3t store, migrating or not, and leaves it as it wa
  const source = readFileSync(here('../src/store.mjs'), 'utf8');
  const edited = source
    .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3s).digest('hex')}';`)
-    .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3s';")
+    .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3s';")
    .replace(/\}, \{\n {2}\/\/ #797 MVP3[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables');
  assert.ok(edited.includes("export const SCHEMA_VERSION = '3s';") && edited.includes('3r-3s') && !edited.includes('3s-3t'), 'the 3s engine has no 3s→3t step');
  writeFileSync(join(moduleRoot, 'src/store.mjs'), edited);
@@ -221,7 +221,7 @@ test('the 3s engine refuses a 3t store, migrating or not, and leaves it as it wa
  const Store3s = (await import(pathToFileURL(join(moduleRoot, 'src/store.mjs')))).Store;
  assert.throws(() => new Store3s(root), /schema-mismatch/);
  assert.throws(() => new Store3s(root, { migrateSchema: true }), /schema-mismatch/);
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(master(path), was);
  // The same engine opens a fresh 3s store, so the refusal is the version's and not a broken copy.
  const { root: old } = source3s(t);
@@ -90,7 +90,7 @@ const ask = (x, state, extra = {}) => x.call('pm', 'request.question', { request
  options: [{ key: 'web', text: 'Web' }, { key: 'cli', text: 'CLI' }], ...extra });

 test('the console verb list includes the artifact read and existing owner controls', () => {
-  assert.deepEqual([...CONSOLE_VERBS], ['project.remote.get.console', 'project.remote.set.console', 'request.workspace.console', 'request.artifact.console', 'decision.preview.console', 'decision.resolve.console', 'prd.revoke.console', 'request.mode.console', 'request.draft.console',
+  assert.deepEqual([...CONSOLE_VERBS], ['system-types.console', 'project.remote.get.console', 'project.remote.set.console', 'request.workspace.console', 'request.artifact.console', 'decision.preview.console', 'decision.resolve.console', 'prd.revoke.console', 'request.mode.console', 'request.draft.console',
    'request.get.console', 'request.projects.console', 'request.answer.console', 'request.attach.console', 'request.cancel.console']);
 });

@@ -302,7 +302,7 @@ test('a cancel is refused when the owner-to-PM edge closed, with no withdrawn de
 });

 test('3q through 3s widens the kind list to the union, keeps every 3q kind, row, seq and guard, and the chain matches the fresh digest', t => {
-  assert.equal(SCHEMA_VERSION, '3t');
+  assert.equal(SCHEMA_VERSION, '3u');
  const root = mkdtempSync(join(tmpdir(), 'request-migration-3r-'));
  t.after(() => rmSync(root, { recursive: true, force: true })); mkdirSync(join(root, 'bus'), { mode: 0o700 });
  const path = join(root, 'bus/bus.sqlite'), AT = '2026-11-03T00:00:00.000Z';
@@ -311,7 +311,7 @@ test('3q through 3s widens the kind list to the union, keeps every 3q kind, row,
  // the replayed chain recreates it, so the step's text is removed here like the kinds are.
  const step3t = readFileSync(new URL('../src/migrations/3s-3t.sql', import.meta.url), 'utf8');
  // 3p-3q shipped the PRD kinds and mode.changed; 3q-3r adds the three Task 3 kinds after them.
-  const ddl3q = current.replace(step3t, '').replace(",'advanced'", '').replace("'prd.invalidated','question.asked','question.answered','attach.selected','mode.changed','cancelled'", "'prd.invalidated','mode.changed','cancelled'");
+  const ddl3q = current.replace(step3t, '').replace(readFileSync(new URL('../src/migrations/3t-3u.sql', import.meta.url), 'utf8'), '').replace(",'advanced'", '').replace("'prd.invalidated','question.asked','question.answered','attach.selected','mode.changed','cancelled'", "'prd.invalidated','mode.changed','cancelled'");
  assert.notEqual(ddl3q, current, 'the fixture is the narrower schema');
  const migration = readFileSync(new URL('../src/migrations/3q-3r.sql', import.meta.url), 'utf8');
  assert.ok(migration.includes("'prd.submitted','prd.activated','prd.invalidated','question.asked','question.answered','attach.selected','mode.changed','cancelled'"), 'the step carries every 3q kind plus its own');
@@ -328,7 +328,7 @@ test('3q through 3s widens the kind list to the union, keeps every 3q kind, row,
  db.close(); chmodSync(path, 0o600);
  assert.throws(() => new Store(root), /schema-mismatch/);
  const cli = spawnSync(process.execPath, [new URL('../src/migrate-schema.mjs', import.meta.url).pathname, root], { encoding: 'utf8' });
-  assert.equal(cli.status, 0, cli.stderr); assert.equal(cli.stdout, 'bus schema 3t ready\n');
+  assert.equal(cli.status, 0, cli.stderr); assert.equal(cli.stdout, 'bus schema 3u ready\n');
  const store = new Store(root);
  assert.deepEqual(store.all('SELECT * FROM request_events ORDER BY seq'), before, 'every row keeps its seq and bytes, including the 3q kinds');
  const fresh = new DatabaseSync(':memory:'); fresh.exec(current);
@@ -230,6 +230,7 @@ test('3r to 3s migration preserves journal and sequence and admits only the new
  // 3s-3t (#797) adds project_archives; the 3r fixture predates it and the replayed chain recreates it.
  db.exec(readFileSync(new URL('../schema.sql', import.meta.url), 'utf8')
    .replace(readFileSync(new URL('../src/migrations/3s-3t.sql', import.meta.url), 'utf8'), '')
+    .replace(readFileSync(new URL('../src/migrations/3t-3u.sql', import.meta.url), 'utf8'), '')
    .replace(",'advanced'", ''));
  db.prepare('INSERT INTO meta VALUES(?,?)').run('schema_version', '3r');
  db.prepare('INSERT INTO meta VALUES(?,?)').run('schema_digest', schemaDigest(db));
@@ -250,7 +251,7 @@ test('3r to 3s migration preserves journal and sequence and admits only the new
  assert.deepEqual(store.all('SELECT * FROM request_events ORDER BY seq'), before);
  assert.deepEqual(store.all("SELECT name,sql FROM sqlite_master WHERE type='trigger' AND tbl_name IN ('request_events','request_effects') ORDER BY name"), guards);
  assert.equal(store.get("SELECT name FROM sqlite_master WHERE type='index' AND name='request_events_request'").name, 'request_events_request');
-  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3t');
+  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
  store.run("INSERT INTO request_events(business,request,revision,kind,at,body) VALUES('demo','r',16,'advanced',?,'{}')", at);
  assert.equal(store.get("SELECT max(seq) n FROM request_events").n, 42);
  assert.throws(() => store.run("UPDATE request_events SET kind='opened'"), /append-only/);
@@ -278,6 +278,7 @@ test('3n_to_3o_is_explicit_offline_preserves_rows_and_old_engine_refuses_new_sch
    // 3s-3t (#797) adds project_archives after the request tables; the pre-3t fixtures below
    // predate it and the replayed chain recreates it, so the step's text comes out here too.
    .replace(readFileSync(new URL('../src/migrations/3s-3t.sql', import.meta.url), 'utf8'), '')
+    .replace(readFileSync(new URL('../src/migrations/3t-3u.sql', import.meta.url), 'utf8'), '')
    .replace("'setup.wait','bootstrap.stale','bootstrap.completed','prd.submitted','prd.activated','prd.invalidated','question.asked','question.answered','attach.selected','mode.changed','advanced','cancelled'", "'setup.wait','cancelled'");
  const newDDL = readFileSync(new URL('../src/migrations/3n-3o.sql', import.meta.url), 'utf8');
  assert.ok(currentDDL.endsWith(newDDL)); const oldDDL = currentDDL.slice(0, -newDDL.length);
@@ -290,7 +291,7 @@ test('3n_to_3o_is_explicit_offline_preserves_rows_and_old_engine_refuses_new_sch
  db.close(); chmodSync(path, 0o600); const before = readFileSync(path);
  assert.throws(() => new Store(root), /schema-mismatch/); assert.deepEqual(readFileSync(path), before);
  const cli = spawnSync(process.execPath, [new URL('../src/migrate-schema.mjs', import.meta.url).pathname, root], { encoding: 'utf8' });
-  assert.equal(cli.status, 0, cli.stderr); assert.equal(cli.stdout, 'bus schema 3t ready\n'); assert.equal(SCHEMA_VERSION, '3t');
+  assert.equal(cli.status, 0, cli.stderr); assert.equal(cli.stdout, 'bus schema 3u ready\n'); assert.equal(SCHEMA_VERSION, '3u');
  const store = new Store(root); assert.equal(store.get("SELECT id FROM events").id, 'preserved');
  for (const table of ['request_events','request_effects','request_snapshots','request_snapshot_events','request_project_events']) assert.equal(store.get(`SELECT count(*) n FROM ${table}`).n, 0);
  store.close(); assert.equal(spawnSync(process.execPath, [new URL('../src/migrate-schema.mjs', import.meta.url).pathname, root]).status, 0);
@@ -313,6 +314,7 @@ test('3o_to_3p_widens_only_the_event_kinds_and_keeps_rows_seq_and_guards', t =>
  // The 3o schema is the current one with the narrower kind list.
  const ddl3o = readFileSync(new URL('../schema.sql', import.meta.url), 'utf8')
    .replace(readFileSync(new URL('../src/migrations/3s-3t.sql', import.meta.url), 'utf8'), '')
+    .replace(readFileSync(new URL('../src/migrations/3t-3u.sql', import.meta.url), 'utf8'), '')
    .replace("'setup.wait','bootstrap.stale','bootstrap.completed','prd.submitted','prd.activated','prd.invalidated','question.asked','question.answered','attach.selected','mode.changed','advanced','cancelled'", "'setup.wait','cancelled'");
  const { schemaDigest } = awaitImportStore, AT = '2026-11-03T00:00:00.000Z';
  const db = new DatabaseSync(path); db.exec(ddl3o);
@@ -329,7 +331,7 @@ test('3o_to_3p_widens_only_the_event_kinds_and_keeps_rows_seq_and_guards', t =>
  db.close(); chmodSync(path, 0o600);
  assert.throws(() => new Store(root), /schema-mismatch/);
  const cli = spawnSync(process.execPath, [new URL('../src/migrate-schema.mjs', import.meta.url).pathname, root], { encoding: 'utf8' });
-  assert.equal(cli.status, 0, cli.stderr); assert.equal(cli.stdout, 'bus schema 3t ready\n');
+  assert.equal(cli.status, 0, cli.stderr); assert.equal(cli.stdout, 'bus schema 3u ready\n');
  const store = new Store(root);
  assert.deepEqual(store.all('SELECT * FROM request_events ORDER BY seq'), before, 'every row keeps its seq and bytes');
  assert.deepEqual(store.all('SELECT * FROM request_effects ORDER BY seq'), effects);
@@ -527,7 +527,8 @@ test('v3b prototype refusals, views and append-only mutations', (t) => {
  // #797 / #1839 Task 1 adds five append-only lifecycle tables and eighteen guards.
  // Task 4 (3p to 3q), Task 3 (3q to 3r) and Task 6b (3r to 3s) widen request_events.kind in place.
  // #797 MVP3 (3s to 3t) adds project_archives and its five guards; project-archive.test.mjs tests them.
-  assert.equal(count('table') - 1, 31);
-  assert.equal(count('trigger'), 119);
+  // 3t to 3u adds project_system_types and four guards.
+  assert.equal(count('table') - 1, 32);
+  assert.equal(count('trigger'), 123);
  assert.equal(count('view'), 5);
 });
@@ -530,9 +530,9 @@ test('T4 schema: a 3m store migrates to 3n, session_ops and message_cancels are
  const before = tables(path);
  assert.throws(() => new Store(root), /schema-mismatch/);
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  const after = tables(path);
-  for (const name of ['session_ops', 'message_cancels', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events', 'project_archives']) {
+  for (const name of ['session_ops', 'message_cancels', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events', 'project_archives', 'project_system_types']) {
    assert.deepEqual(after[name], [], name);
    delete after[name];
  }
@@ -571,7 +571,7 @@ async function engine3m(root) {
  const source = readFileSync(here('../src/store.mjs'), 'utf8');
  const edited = source
    .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3m).digest('hex')}';`)
-    .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3m';")
+    .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3m';")
    .replace(/\}, \{\n {2}\/\/ Row 271 \(#1776\)[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables');
  assert.ok(edited.includes("export const SCHEMA_VERSION = '3m';") && edited.includes('3l-3m') && !edited.includes('3m-3n'), 'the 3m engine has no 3m→3n step');
  writeFileSync(join(moduleRoot, 'src/store.mjs'), edited);
@@ -588,7 +588,7 @@ test('T4 schema: the 3m engine refuses a 3n store, migrating or not, and leaves
  const Store3m = await engine3m(root);
  assert.throws(() => new Store3m(root), /schema-mismatch/);
  assert.throws(() => new Store3m(root, { migrateSchema: true }), /schema-mismatch/);
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(master(path), was);
  assert.deepEqual(tables(path), before);
  // The same engine opens a fresh 3m store, so the refusal is the version's and not a broken copy.
@@ -374,7 +374,7 @@ test('T7: a 3k store migrates to 3l, each thread\'s default session has the thre
  const { root, path } = source3k(t);
  assert.throws(() => new Store(root), /schema-mismatch/);
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  // The migrated schema is the fresh one, object for object.
  const freshRoot = mkdtempSync(join(tmpdir(), 'sessions-fresh-'));
  t.after(() => rmSync(freshRoot, { recursive: true, force: true }));
@@ -430,7 +430,7 @@ async function engine3k(root) {
  const source = readFileSync(here('../src/store.mjs'), 'utf8');
  const edited = source
    .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3k).digest('hex')}';`)
-    .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3k';")
+    .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3k';")
    .replace(/\}, \{\n {2}\/\/ Row 264a \(#1769\)[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables');
  assert.ok(edited.includes("export const SCHEMA_VERSION = '3k';") && edited.includes('3j-3k') && !edited.includes('3k-3l'), 'the 3k engine has no 3k→3l step');
  writeFileSync(join(moduleRoot, 'src/store.mjs'), edited);
@@ -447,7 +447,7 @@ test('T7 D9: the 3k engine refuses a 3l store, migrating or not, and leaves it a
  const Store3k = await engine3k(root);
  assert.throws(() => new Store3k(root), /schema-mismatch/);
  assert.throws(() => new Store3k(root, { migrateSchema: true }), /schema-mismatch/);
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(master(path), was);
  assert.deepEqual(rows(path), before);
  // The same engine opens a fresh 3k store, so the refusal is the version's and not a broken copy.
@@ -63,7 +63,7 @@ test('3e copy migrates through 3f to 3g preserving every old column/row and addi
  assert.throws(() => new Store(root), /schema-mismatch/);
  const store = new Store(root, { migrateSchema: true });
  try {
-    assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3t');
+    assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
    assert.deepEqual({ ...store.get('SELECT spec_path,spec_commit FROM decisions') }, { spec_path: null, spec_commit: null });
    assert.equal(store.get('PRAGMA quick_check').quick_check, 'ok');
    assert.deepEqual(store.all('PRAGMA foreign_key_check'), []);
@@ -0,0 +1,107 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { mkdtempSync, rmSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import { Store } from '../src/store.mjs';
+import { Broker } from '../src/broker.mjs';
+import { installedSystemTypes } from '../../plugins/src/system-types.mjs';
+
+test('project selections require enabled types, retain inactive selections, and only the owner writes', t => {
+  const root = mkdtempSync(join(tmpdir(), 'sys-'));
+  const store = new Store(root); t.after(() => { store.close(); rmSync(root, { recursive: true, force: true }); });
+  const business = { id: 'demo', human: 'jason', arbiters: { technical: 'chief', delivery: 'chief' }, roles: { chief: { definition: 'chief-of-staff', authority: { withinRole: [], crossRole: [] } } }, projects: {}, plugins: { 'system-type': ['coding'] }, vars: { 'bus.tester': true } };
+  const broker = new Broker({ store, businesses: { demo: business } });
+  const owner = broker.bindHuman({ business: 'demo', human: 'jason', via: 'cli', outsideAgent: true });
+  const tester = broker.bindTester({ business: 'demo' });
+  const agent = broker.bindLaunch({ business: 'demo', role: 'chief', run: 'chief-run', harness: 'pi' });
+  const call = (verb, args = {}, cap = owner) => broker.request(cap, { verb, args });
+  const project = call('project.create', { name: 'example' }).id;
+  assert.deepEqual(call('project.system-types', { project }), { project, selected: [], active: [], inactive: [] });
+  assert.throws(() => call('project.system-types.set', { project, systemTypes: ['montage'] }), /system-type-not-enabled/);
+  assert.throws(() => call('project.system-types.set', { project, systemTypes: ['coding'] }, tester), /tester-refused/);
+  assert.throws(() => call('project.system-types.set', { project, systemTypes: ['coding'] }, agent), /human-required/);
+  assert.throws(() => call('project.system-types.set', { project, systemTypes: ['coding', 'coding'] }), /invalid-request/);
+  call('project.system-types.set', { project, systemTypes: ['coding'] });
+  assert.deepEqual(call('project.system-types', { project }).active, ['coding']);
+  broker.reloadBusiness('demo', { ...business, plugins: { 'system-type': [] } });
+  assert.deepEqual(call('project.system-types', { project }), { project, selected: ['coding'], active: [], inactive: ['coding'] });
+  assert.deepEqual(store.all('SELECT by FROM project_system_types').map(r => r.by), ['jason']);
+  assert.throws(() => store.run("UPDATE project_system_types SET types='[]'"), /append-only/);
+  assert.throws(() => store.run('DELETE FROM project_system_types'), /append-only/);
+  assert.throws(() => store.run("INSERT INTO project_system_types(at,business,project,types,by) VALUES(?,?,?,?,?)", new Date().toISOString(), 'other', project, '[]', 'jason'), /belongs to its project/);
+});
+
+test('console owner can read system types but cannot write project selections', async t => {
+  const root = mkdtempSync(join(tmpdir(), 'sys-'));
+  const store = new Store(root); t.after(() => { store.close(); rmSync(root, { recursive: true, force: true }); });
+  const business = { id: 'demo', human: 'jason', arbiters: { technical: 'chief', delivery: 'chief' }, roles: { chief: { definition: 'chief-of-staff', authority: { withinRole: [], crossRole: [] } } }, projects: {}, plugins: { 'system-type': ['coding'] }, vars: { 'bus.tester': true } };
+  let discoveries = 0, enabled = ['coding'];
+  const broker = new Broker({ store, businesses: { demo: business }, organization: (_id, verb) => { if (verb === 'system-types.current') return enabled; if (verb === 'system-types.installed') { discoveries++; return installedSystemTypes(); } } });
+  const owner = broker.bindHuman({ business: 'demo', human: 'jason', via: 'cli', outsideAgent: true });
+  const consoleOwner = broker.bindConsole({ business: 'demo', human: 'jason', subject: { provider: 'test', iss: 'test', sub: 'owner' } });
+  const tester = broker.bindTester({ business: 'demo' });
+  assert.throws(() => broker.request(tester, { verb: 'plugins.set', args: { revision: 'a'.repeat(64), plugins: { 'system-type': ['coding'] } } }), /human-required/);
+  const project = broker.request(owner, { verb: 'project.create', args: { name: 'example' } }).id;
+  const result = await broker.request(consoleOwner, { verb: 'system-types.console', args: { project } });
+  assert.deepEqual(result.enabled, ['coding']);
+  assert.equal(result.installed.length, 5);
+  assert.equal(discoveries, 1);
+  broker.request(owner, { verb: 'project.system-types.set', args: { project, systemTypes: ['coding'] } });
+  enabled = [];
+  assert.deepEqual(broker.request(owner, { verb: 'project.system-types', args: { project } }).inactive, ['coding']);
+  assert.throws(() => broker.request(owner, { verb: 'project.system-types.set', args: { project, systemTypes: ['coding'] } }), /system-type-not-enabled/);
+  assert.deepEqual(result.project, { project, selected: [], active: [], inactive: [] });
+  assert.throws(() => broker.request(consoleOwner, { verb: 'project.system-types.set', args: { project, systemTypes: ['coding'] } }), /human-required/);
+});
+
+test('3t store migrates offline without altering existing project rows', async t => {
+  const { DatabaseSync } = await import('node:sqlite');
+  const { readFileSync, mkdirSync, chmodSync } = await import('node:fs');
+  const { schemaDigest } = await import('../src/store.mjs');
+  const root = mkdtempSync(join(tmpdir(), 'sys-migration-'));
+  t.after(() => rmSync(root, { recursive: true, force: true }));
+  mkdirSync(join(root, 'bus'), { mode: 0o700 });
+  const dbpath = join(root, 'bus/bus.sqlite');
+  const db = new DatabaseSync(dbpath);
+  const ddl = readFileSync(new URL('../schema.sql', import.meta.url), 'utf8');
+  const step = readFileSync(new URL('../src/migrations/3t-3u.sql', import.meta.url), 'utf8');
+  assert.equal(ddl.split(step).length, 2);
+  db.exec(ddl.replace(step, ''));
+  db.prepare('INSERT INTO meta VALUES(?,?)').run('schema_version', '3t');
+  db.prepare('INSERT INTO meta VALUES(?,?)').run('schema_digest', schemaDigest(db));
+  db.prepare('INSERT INTO meta VALUES(?,?)').run('comment_cursor_epoch', '2026-01-01T00:00:00.000Z');
+  db.prepare('INSERT INTO projects(id,at,business,name,repo,created_by) VALUES(?,?,?,?,?,?)').run('old', '2026-01-01T00:00:00.000Z', 'demo', 'old', null, 'jason');
+  db.close(); chmodSync(dbpath, 0o600);
+  assert.throws(() => new Store(root), /schema-mismatch/);
+  const migrated = new Store(root, { migrateSchema: true }); t.after(() => migrated.close());
+  assert.equal(migrated.get('SELECT name FROM projects WHERE id=?', 'old').name, 'old');
+  assert.equal(migrated.get('SELECT count(*) AS n FROM project_system_types').n, 0);
+  assert.equal(migrated.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
+});
+
+test('runtime reads the current organization file for project selections and console discovery', async t => {
+  const { mkdirSync } = await import('node:fs');
+  const { startBroker } = await import('../src/runtime.mjs');
+  const { businessDoc, rolesCopy, systemFor, writeJson } = await import('../../organization/tests/helpers.mjs');
+  const root = mkdtempSync(join(tmpdir(), 'sys-runtime-'));
+  const rolesDir = rolesCopy(root), doc = businessDoc(root, 'demo');
+  doc.plugins = { 'system-type': ['coding'] };
+  writeJson(join(root, 'businesses/demo.json'), doc);
+  mkdirSync(join(root, 'data'), { mode: 0o700 });
+  const business = { id: 'demo', human: 'jason', arbiters: { technical: 'coder', delivery: 'coder' }, roles: { coder: { authority: { withinRole: [], crossRole: [] } } } };
+  const bus = await startBroker({ dataRoot: join(root, 'data'), businesses: { demo: business }, organization: { dir: root, rolesDir, system: systemFor(root) } });
+  t.after(async () => { await bus.close(); rmSync(root, { recursive: true, force: true }); });
+  const human = bus.broker.bindHuman({ business: 'demo', human: 'jason', via: 'cli', outsideAgent: true });
+  const consoleOwner = bus.broker.bindConsole({ business: 'demo', human: 'jason', subject: { provider: 'test', iss: 'test', sub: 'owner' } });
+  const call = (verb, args = {}, cap = human) => bus.broker.request(cap, { verb, args });
+  const project = call('project.create', { name: 'example' }).id;
+  call('project.system-types.set', { project, systemTypes: ['coding'] });
+  const view = await call('system-types.console', { project }, consoleOwner);
+  assert.deepEqual(view.enabled, ['coding']);
+  assert.deepEqual(view.project.active, ['coding']);
+  assert.equal(view.installed.length, 5);
+  const plugins = call('plugins');
+  call('plugins.set', { revision: plugins.revision, plugins: { 'system-type': [] } });
+  assert.deepEqual(call('project.system-types', { project }).inactive, ['coding']);
+});
@@ -49,7 +49,7 @@ async function database3d(t) {
  const source = readFileSync(here('../src/store.mjs'), 'utf8');
  const pinned = source
    .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3d).digest('hex')}';`)
-    .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3d';")
+    .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3d';")
    .replace(/\}, \{\n {2}from: '3d',[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables');
  assert.ok(!pinned.includes('3d-3e'), 'the 3d engine has no 3d→3e step');
  writeFileSync(join(moduleRoot, 'src/store.mjs'), pinned);
@@ -101,7 +101,7 @@ test('REQ-THREAD-1 REQ-ORG-2: the 3d→3e migration adds the thread tables and l
  assert.throws(() => new Store(root), /schema-mismatch/);
  const store = new Store(root, { migrateSchema: true });
  t.after(() => store.close());
-  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3t');
+  assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
  for (const table of ['projects', 'threads', 'thread_claims', 'message_threads', 'thread_opens'])
    assert.equal(store.get(`SELECT count(*) n FROM ${table}`).n, 0, table);
  // Parked: the undelivered ones are counted per business and role, and none is changed or given a thread.
@@ -161,5 +161,5 @@ test('REQ-THREAD-1: the offline command prints the kept-message counts before th
  const command = new URL('../src/migrate-schema.mjs', import.meta.url).pathname;
  const migrated = spawnSync(process.execPath, [command, root], { encoding: 'utf8' });
  assert.equal(migrated.status, 0, migrated.stderr);
-  assert.equal(migrated.stdout, [...REPORT, 'bus schema 3t ready', ''].join('\n'));
+  assert.equal(migrated.stdout, [...REPORT, 'bus schema 3u ready', ''].join('\n'));
 });
@@ -403,12 +403,12 @@ test('a 3l store migrates to 3m: thread_shares is new and empty, and every other
  const before = tables(path);
  assert.throws(() => new Store(root), /schema-mismatch/);
  new Store(root, { migrateSchema: true }).close();
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  const after = tables(path);
  assert.deepEqual(after.thread_shares, []);
  delete after.thread_shares;
  // Row 271 (#1776): the 3m→3n step's session_ops and message_cancels, new and empty too.
-  for (const name of ['session_ops', 'message_cancels', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events', 'project_archives']) {
+  for (const name of ['session_ops', 'message_cancels', 'request_events', 'request_effects', 'request_snapshots', 'request_snapshot_events', 'request_project_events', 'project_archives', 'project_system_types']) {
    assert.deepEqual(after[name], [], name);
    delete after[name];
  }
@@ -439,7 +439,7 @@ async function engine3l(root) {
  const source = readFileSync(here('../src/store.mjs'), 'utf8');
  const edited = source
    .replace(/export const SCHEMA_SHA256 = '[a-f0-9]+';/, `export const SCHEMA_SHA256 = '${createHash('sha256').update(ddl3l).digest('hex')}';`)
-    .replace("export const SCHEMA_VERSION = '3t';", "export const SCHEMA_VERSION = '3l';")
+    .replace("export const SCHEMA_VERSION = '3u';", "export const SCHEMA_VERSION = '3l';")
    .replace(/\}, \{\n {2}\/\/ Row 206 \(193b2[\s\S]*?\}\];\nconst timedTables/, '}];\nconst timedTables');
  assert.ok(edited.includes("export const SCHEMA_VERSION = '3l';") && edited.includes('3k-3l') && !edited.includes('3l-3m'), 'the 3l engine has no 3l→3m step');
  writeFileSync(join(moduleRoot, 'src/store.mjs'), edited);
@@ -456,7 +456,7 @@ test('the 3l engine refuses a 3m store, migrating or not, and leaves it as it wa
  const Store3l = await engine3l(root);
  assert.throws(() => new Store3l(root), /schema-mismatch/);
  assert.throws(() => new Store3l(root, { migrateSchema: true }), /schema-mismatch/);
-  assert.equal(version(path), '3t');
+  assert.equal(version(path), '3u');
  assert.deepEqual(master(path), was);
  assert.deepEqual(tables(path), before);
  // The same engine opens a fresh 3l store, so the refusal is the version's and not a broken copy.
@@ -68,7 +68,7 @@ test('REQ-LIMIT-4 3g copy migrates through 3h, 3i, 3j and 3k to 3l preserving ev
  assert.throws(() => new Store(root), /schema-mismatch/);
  const store = new Store(root, { migrateSchema: true });
  try {
-    assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3t');
+    assert.equal(store.get("SELECT value FROM meta WHERE key='schema_version'").value, '3u');
    assert.deepEqual({ ...store.get('SELECT to_name FROM messages') }, { to_name: null });
    assert.equal(store.get('SELECT count(*) AS n FROM usage_records').n, 0);
    assert.equal(store.get('SELECT name FROM instance_names').name, 'Builder');
@@ -1289,3 +1289,12 @@ first attempt. Completed moves are not rolled back. A held lifecycle lock can
 mean a bus start is still in progress; if a process crashed and left its lock,
 inspect it before removing it and resuming. Moves use rename and therefore
 require the source and deleted folder to be on the same filesystem.
+
+System types are installed plug-ins. `mosaic org system-types installed` prints
+module metadata; `mosaic org system-types enabled ID` prints an organization's enabled
+ids. The owner changes the enabled list through the existing organization file
+update or `mosaic plugins set`. `mosaic project system-types PROJECT --org ID`
+shows selected, active and inactive ids. The owner replaces the selection with
+`mosaic project system-types-set PROJECT --types coding,montage --org ID`; an
+empty `--types ''` clears it. Disabled selections stay recorded but become
+inactive. Project settings changes are append-only and require human proof.
@@ -74,7 +74,7 @@ export function readAccounting({ dataRoot,business,start,end }) {
  const db = new DatabaseSync(join(dataRoot,'bus/bus.sqlite'),{readOnly:true});
  try {
    db.exec('BEGIN');
-    if (!['3s','3t'].includes(db.prepare("SELECT value FROM meta WHERE key='schema_version'").get()?.value)) fail('test-store-schema-refused');
+    if (!['3s','3t','3u'].includes(db.prepare("SELECT value FROM meta WHERE key='schema_version'").get()?.value)) fail('test-store-schema-refused');
    const store = { all:(sql,...args) => db.prepare(sql).all(...args) };
    const records = turnRecords(store,business);
    const raw = store.all("SELECT * FROM usage_records WHERE business=? AND source<>'@proxy/cliproxy-queue' ORDER BY seq",business);
@@ -79,7 +79,7 @@ test('accounting reads a real store at the current bus schema version',t=>{
  const records=readAccounting({dataRoot:f.dataRoot,business:f.c.business,start:f.c.start,end:f.c.end});
  assert.equal(records.length,1);assert.equal(records[0].input,1);
 });
-for(const version of ['3s','3r','3u',null]) test(`accounting ${version==='3s'?'accepts':'refuses'} schema ${version??'missing'}`,t=>{
+for(const version of ['3s','3r','3v',null]) test(`accounting ${version==='3s'?'accepts':'refuses'} schema ${version??'missing'}`,t=>{
  const f=setup(t,100);
  // Only this disposable fixture is altered; the production meta table is append-only.
  f.store.run('DROP TRIGGER meta_no_update');f.store.run('DROP TRIGGER meta_no_delete');
@@ -43,7 +43,7 @@ import { SeatError } from "../../seat/src/seat.mjs";
 import { OrgError, resolveOrg, withOrgLifecycle } from "../../organization/src/org-registry.mjs";
 import { orgSelector } from "./org-selector.mjs";
 import { busStart, busStatus, busStop, busRestart, busRecover } from "./org-bus.mjs";
-import { consoleStart, consoleStatus, consoleStop } from "./org-console.mjs";
+import { consoleRestart, consoleStart, consoleStatus, consoleStop } from "./org-console.mjs";

 import { usageCommand, USAGE_USAGE } from "./usage.mjs";
 import { orgCommand, ORG_USAGE } from "./org.mjs";
@@ -91,6 +91,7 @@ export const USAGE = `usage:
  mosaic bus status <id> [--json]
  mosaic console start [--dev-local-owner [--dev-insecure-bind ADDR --dev-allow-host NAME[,NAME...]]] [--detach] [--port auto|N]
  mosaic console stop|status
+  mosaic console restart
  ${DEV_USAGE}
  ${RUN_USAGE}`;

@@ -571,6 +572,14 @@ async function consoleCommand(rest, io, deps) {
    io.stdout.write(`${JSON.stringify(consoleStatus(organizationContext(io, deps), { warn: s => io.stderr.write(s) }))}\n`);
    return;
  }
+  // U1 (#1873): the F3 Settings control from a terminal. The running Console applies its own owner
+  // and trail checks (org-console.mjs consoleRestart); an agent run is refused before any read.
+  if (sub === "restart") {
+    if (args.length) throw usage("console restart takes no arguments");
+    refuseInsideAgent(io.env);
+    io.stdout.write(`${JSON.stringify(await consoleRestart(organizationContext(io, deps), deps.consoleRequest ?? {}))}\n`);
+    return;
+  }
  if (sub !== "start") throw usage();
  const parsed = parse(args, { flags: ["--dev-local-owner", "--detach"], values: ["--port", "--dev-insecure-bind", "--dev-allow-host"] });
  if (parsed.positional.length) throw usage("console start takes no positional arguments");
@@ -718,7 +727,7 @@ export async function main(argv, io = { env: process.env, stdin: process.stdin,
  if (["inbox", "decide", "tasks", "agents", "trail"].includes(verb)) return human(verb, rest, io, deps);
  if (verb === "project" && rest[0] === "north-star") return northStarCommand(rest.slice(1), io, (p) => callFor(p, io, deps));
  if (verb === "project" && rest[0] === "interview") return interviewCommand(rest.slice(1), io);
-  if (verb === "project") return ["create", "list", "archive", "unarchive"].includes(rest[0]) ? projectBusCommand(rest, io, (p) => channelCallFor(p, io, deps)) : projectCommand(rest, io, deps, (p) => callFor(p, io, deps));
+  if (verb === "project") return ["create", "list", "archive", "unarchive", "system-types", "system-types-set"].includes(rest[0]) ? projectBusCommand(rest, io, (p) => channelCallFor(p, io, deps)) : projectCommand(rest, io, deps, (p) => callFor(p, io, deps));
  if (verb === "threads") return threadsCommand(rest, io, (p) => channelCallFor(p, io, deps));
  if (verb === "session") return sessionCommand(rest, io, (p) => channelCallFor(p, io, deps));
  if (verb === "thread") return threadCommand(rest, io, (p) => channelCallFor(p, io, deps), formatMessage);
@@ -43,12 +43,17 @@ function checkedState(org) {
  if (s.host && !lock) fail('bus host lock is missing');
  return s;
 }
-function answer(path) {
+export function probeBusSocket(path, { signal, deadline } = {}) {
  return new Promise(resolve => {
+    const remaining = deadline === undefined ? 1000 : Math.min(1000, deadline - Date.now());
+    if (signal?.aborted || remaining <= 0) return resolve(false);
    let done = false, data = '';
    const socket = connect(path);
-    const finish = value => { if (done) return; done = true; socket.destroy(); resolve(value); };
-    socket.setTimeout(1000, () => finish(false));
+    const abort = () => finish(false);
+    const finish = value => { if (done) return; done = true; signal?.removeEventListener('abort', abort); socket.destroy(); resolve(value); };
+    signal?.addEventListener('abort', abort, { once: true });
+    if (signal?.aborted) return abort();
+    socket.setTimeout(remaining, () => finish(false));
    socket.on('error', () => finish(false));
    socket.on('connect', () => socket.write('{}\n'));
    socket.on('data', chunk => {
@@ -62,9 +67,9 @@ function answer(path) {
    socket.on('end', () => finish(false));
  });
 }
-export async function busStatus(ctx, id) {
+export async function busStatus(ctx, id, bound) {
  const org = await target(ctx, id), state = checkedState(org);
-  const healthy = Boolean(state.host?.live && state.socket && await answer(org.paths.socket));
+  const healthy = Boolean(state.host?.live && state.socket && await probeBusSocket(org.paths.socket, bound));
  return { org: id, instance: ctx.instance, root: org.root, socket: org.paths.socket, healthy, pid: state.host?.pid ?? null, boot: readBootStatus(org.root) };
 }
 export async function busStop(ctx, id) {
@@ -123,7 +128,7 @@ export async function busStart(ctx, id, { detach = false, devLocalOwner = false,
  while (Date.now() < deadline && !exited) {
    // During boot the host holds its lock before its state is published.
    const state = readHostState(org.root);
-    if (ready && state?.live && state.pid === child.pid && state.business === id && await answer(org.paths.socket)) {
+    if (ready && state?.live && state.pid === child.pid && state.business === id && await probeBusSocket(org.paths.socket)) {
      child.disconnect();
      if (detach) child.unref();
      const receipt = { org: id, pid: child.pid, socket: org.paths.socket, root: org.root };
@@ -2,6 +2,7 @@
 import { randomBytes } from 'node:crypto';
 import { processState } from '../../seat/src/process-state.mjs';
 import { spawn } from 'node:child_process';
+import { request as httpRequest } from 'node:http';
 import { constants, closeSync, fstatSync, lstatSync, mkdirSync, openSync, readFileSync, rmSync, renameSync, writeFileSync } from 'node:fs';
 import { join } from 'node:path';
 import { fileURLToPath } from 'node:url';
@@ -219,3 +220,79 @@ export function consoleStatus(ctx, { warn = s => process.stderr.write(s) } = {})
  if (running && s.bind) warn(lanWarning(bind, port));
  return { running, ...(running ? {} : { stale: true }), pid: s.pid, url: s.url, bind, ...(s.allowHosts ? { allowHosts: s.allowHosts } : {}) };
 }
+
+// U1 (#1873): `mosaic console restart` and `mosaic org reload ID` are the F3 page controls from a
+// terminal. Each one is a request to the running Console named by console.json, sent as the page
+// sends it: the Console's own Host and Origin, Sec-Fetch-Site: same-origin and a JSON `{}` body.
+// The Console's route applies its owner, --send and origin checks and writes the action trail;
+// nothing here writes the trail, signals a process or touches a bus. The CLI verbs refuse inside
+// an agent run before they get here (transport.mjs refuseInsideAgent).
+const ORG_ID = /^[a-z0-9][a-z0-9._-]{0,63}$/;
+function consoleTarget(ctx) {
+  const s = state(ctx);
+  if (!s) fail('no Console runs for this instance; start one with mosaic console start');
+  if (!liveConsole(s)) fail('the Console in console state is not running; see mosaic console status');
+  const url = /^http:\/\/([0-9.]+):(\d+)\/$/.exec(s.url);
+  if (!url) fail('console state is invalid');
+  const port = Number(url[2]);
+  if (forbidden.has(port)) fail('console state names a forbidden port');
+  // A LAN Console on 0.0.0.0 answers on loopback too; one bound to an address answers only there.
+  const address = s.bind && s.bind !== '0.0.0.0' ? s.bind : '127.0.0.1';
+  return { address, port, host: `${address}:${port}` };
+}
+function consoleCall(target, { method = 'GET', path, timeoutMs }) {
+  return new Promise((resolve, reject) => {
+    const headers = { host: target.host, ...(method === 'POST' ? { origin: `http://${target.host}`, 'sec-fetch-site': 'same-origin', 'content-type': 'application/json', 'content-length': 2 } : {}) };
+    let sent = false;
+    const req = httpRequest({ host: target.address, port: target.port, method, path, headers, timeout: timeoutMs }, res => {
+      let text = '';
+      res.setEncoding('utf8');
+      res.on('data', chunk => { text += chunk; if (text.length > 65536) req.destroy(new Error('the Console answer is too large')); });
+      res.on('end', () => { let body = null; try { body = JSON.parse(text); } catch { /* not JSON */ } resolve({ status: res.statusCode, body }); });
+      res.on('error', e => reject(Object.assign(e, { sent: true })));
+    });
+    req.on('timeout', () => req.destroy(Object.assign(new Error('timed out'), { code: 'timeout' })));
+    req.on('finish', () => { sent = true; });
+    req.on('error', e => reject(Object.assign(e, { sent })));
+    req.end(method === 'POST' ? '{}' : undefined);
+  });
+}
+// A refused connection never reached the Console. Anything else after the request left may have
+// changed something, so it is outcome-unknown and nothing is retried.
+async function consolePost(target, path, { timeoutMs, unknown }) {
+  let answer;
+  try { answer = await consoleCall(target, { method: 'POST', path, timeoutMs }); }
+  catch (e) {
+    if (e.code === 'ECONNREFUSED' && !e.sent) fail('the Console refused the connection; see mosaic console status');
+    throw new CliError(`outcome unknown: ${unknown}`, 1);
+  }
+  return answer;
+}
+function refusal(answer, what) {
+  const code = typeof answer.body?.error === 'string' && /^[a-z-]{1,64}$/.test(answer.body.error) ? answer.body.error : `http ${answer.status}`;
+  const message = typeof answer.body?.message === 'string' ? `: ${answer.body.message.slice(0, 500)}` : '';
+  return new CliError(`${what} refused (${code})${message}`, answer.status >= 500 ? 1 : 3);
+}
+// POST /api/console/restart, then wait for the relaunched Console (a new boot id on /api/config).
+export async function consoleRestart(ctx, { timeoutMs = 10000, waitMs = 30000 } = {}) {
+  const target = consoleTarget(ctx);
+  const answer = await consolePost(target, '/api/console/restart', { timeoutMs, unknown: 'the Console may be restarting; check mosaic console status and the action trail' });
+  if (answer.status !== 202 || answer.body?.outcome !== 'restarting' || typeof answer.body.boot !== 'string') throw refusal(answer, 'console restart');
+  const from = answer.body.boot, deadline = Date.now() + waitMs;
+  while (Date.now() < deadline) {
+    await sleep(250);
+    try {
+      const config = await consoleCall(target, { path: '/api/config', timeoutMs: 2000 });
+      if (config.status === 200 && typeof config.body?.boot === 'string' && config.body.boot !== from) return { outcome: 'restarted', from, boot: config.body.boot };
+    } catch { /* closed while it restarts */ }
+  }
+  throw new CliError('the Console accepted the restart but has not answered since; check mosaic console status', 1);
+}
+// POST /api/orgs/ID/restart/bus: a running bus restarts, a stopped one starts (org-admin.mjs restartBus).
+export async function consoleBusRestart(ctx, id, { timeoutMs = 120000 } = {}) {
+  if (typeof id !== 'string' || !ORG_ID.test(id)) throw new CliError('invalid organization id', 4);
+  const target = consoleTarget(ctx);
+  const answer = await consolePost(target, `/api/orgs/${id}/restart/bus`, { timeoutMs, unknown: `the bus may be restarting; check mosaic bus status ${id} and the action trail` });
+  if (answer.status !== 200 || answer.body?.outcome !== 'done' || answer.body.step !== 'bus-restart') throw refusal(answer, 'org reload');
+  return answer.body;
+}
@@ -2,11 +2,14 @@ import { readFile, writeFile } from 'node:fs/promises';
 import { configDir } from '../../organization/src/organization-config.mjs';
 import { listOrgs, orgLock } from '../../organization/src/org-registry.mjs';
 import { templateRender, validateOrg, createOrg, showOrg, updateOrg, queueInit, queueShow, projectRepoInit, projectRepoShow, deleteOrg, archiveOrg, restoreOrg } from '../../organization/src/org-service.mjs';
+import { installedSystemTypes } from '../../plugins/src/system-types.mjs';
 import { DEV_OWNER, devOwnerInstance } from './dev-local-owner.mjs';
 import { loadSystem } from './config.mjs';
 import { CliError } from './errors.mjs';
 import { busStopForDelete } from './org-bus.mjs';
-export const ORG_USAGE = 'mosaic org lock show|clear ID | archive ID --if-revision N [--json] | restore ID --if-revision N [--json] | delete ID --confirm ID [--if-revision N] [--json] | template render ID [--fixture local] --output FILE | validate FILE | create ID --from FILE | show ID [--json] | list [--json] | update ID --from FILE --if-revision N | queue init ID (--local-only --accept-local-loss-risk | --remote URL) | queue show ID [--json] | project repo init ID PROJECT (--local-only --accept-local-loss-risk | --remote URL) | project repo show ID PROJECT [--json] | config validate ID | config resolve ID INSTANCE [--project ID]';
+import { consoleBusRestart } from './org-console.mjs';
+import { refuseInsideAgent } from './transport.mjs';
+export const ORG_USAGE = 'mosaic org system-types installed | system-types enabled ID | lock show|clear ID | reload ID | archive ID --if-revision N [--json] | restore ID --if-revision N [--json] | delete ID --confirm ID [--if-revision N] [--json] | template render ID [--fixture local] --output FILE | validate FILE | create ID --from FILE | show ID [--json] | list [--json] | update ID --from FILE --if-revision N | queue init ID (--local-only --accept-local-loss-risk | --remote URL) | queue show ID [--json] | project repo init ID PROJECT (--local-only --accept-local-loss-risk | --remote URL) | project repo show ID PROJECT [--json] | config validate ID | config resolve ID INSTANCE [--project ID]';
 function parse(args) { const pos = [], values = {}, flags = new Set(); for (let i = 0; i < args.length; i++) { const a = args[i]; if (['--json', '--local-only', '--accept-local-loss-risk'].includes(a)) { if (flags.has(a)) throw new CliError(`duplicate ${a}`, 4); flags.add(a); } else if (['--fixture', '--output', '--from', '--if-revision', '--remote', '--confirm'].includes(a)) { if (values[a] !== undefined || !args[i+1] || args[i+1].startsWith('--')) throw new CliError(`${a} needs one value`, 4); values[a] = args[++i]; } else if (a.startsWith('--')) throw new CliError(`unknown option ${a}`, 4); else pos.push(a); } return { pos, values, flags }; }
 async function document(file) { try { return JSON.parse(await readFile(file, 'utf8')); } catch (e) { throw new CliError(`cannot read document ${file}: ${e.message}`, 2); } }
 export async function orgCommand(args, io, deps = {}) {
@@ -16,12 +19,19 @@ export async function orgCommand(args, io, deps = {}) {
  const need = key => { if (!p.values[key]) throw new CliError(`${key} is required`, 4); return p.values[key]; };
  if (words[0] === 'template' && words[1] === 'render' && words.length === 3) { allowed([], ['--fixture', '--output']); result = await templateRender(words[2], { fixture: p.values['--fixture'] }); await writeFile(need('--output'), JSON.stringify(result, null, 2) + '\n', { flag: 'wx', mode: 0o600 }); io.stdout.write(`rendered ${words[2]} to ${p.values['--output']}\n`); return; }
  if (words[0] === 'validate' && words.length === 2) { allowed([], []); result = await validateOrg(await document(words[1])); if (!result.ok) throw new CliError(result.errors.map(e => `${e.path}: ${e.message}`).join('\n'), 2); io.stdout.write('valid\n'); return; }
+  // U1 (#1873): `org reload` is a human action; an agent run is refused before any config is read.
+  if (words[0] === 'reload') refuseInsideAgent(io.env);
+  if (words[0] === 'system-types' && words[1] === 'installed' && words.length === 2) { allowed(['--json'], []); io.stdout.write(JSON.stringify(await installedSystemTypes(), null, 2) + '\n'); return; }
  const instance = devOwnerInstance(io.env); const system = deps.system ?? loadSystem({ env: io.env, instance }); const ctx = { configDir: configDir(io.env), dataRoot: system.dataRoot, instance, principal: DEV_OWNER };
-  if (words[0] === 'lock' && ['show', 'clear'].includes(words[1]) && words.length === 3) { allowed([], []); result = await orgLock(ctx, words[2], { clear: words[1] === 'clear' }); }
+  if (words[0] === 'system-types' && words[1] === 'enabled' && words.length === 3) { allowed(['--json'], []); const org = await showOrg(ctx, words[2]); result = { organization: words[2], enabled: org.doc.plugins?.['system-type'] ?? [] }; }
+  else if (words[0] === 'lock' && ['show', 'clear'].includes(words[1]) && words.length === 3) { allowed([], []); result = await orgLock(ctx, words[2], { clear: words[1] === 'clear' }); }
  else if (words[0] === 'create' && words.length === 2) { allowed([], ['--from']); result = await createOrg(ctx, words[1], await document(need('--from'))); }
  else if (words[0] === 'update' && words.length === 2) { allowed([], ['--from', '--if-revision']); const r = need('--if-revision'); if (!/^[1-9][0-9]*$/.test(r)) throw new CliError('invalid revision', 4); result = await updateOrg(ctx, words[1], await document(need('--from')), { ifRevision: Number(r) }); }
  else if (['archive', 'restore'].includes(words[0]) && words.length === 2) { allowed(['--json'], ['--if-revision']); const r = need('--if-revision'); if (!/^[1-9][0-9]*$/.test(r)) throw new CliError('invalid revision', 4); const opts = { ifRevision: Number(r) }; result = words[0] === 'archive' ? await archiveOrg(ctx, words[1], { ...opts, busStop: busStopForDelete }) : await restoreOrg(ctx, words[1], opts); }
  else if (words[0] === 'delete' && words.length === 2) { allowed(['--json'], ['--confirm', '--if-revision']); const r = p.values['--if-revision']; if (r !== undefined && !/^[1-9][0-9]*$/.test(r)) throw new CliError('invalid revision', 4); result = await deleteOrg(ctx, words[1], { busStop: busStopForDelete, confirm: need('--confirm'), ifRevision: r === undefined ? undefined : Number(r) }); }
+  // U1 (#1873): the F3 bus control from a terminal, through the running Console's own route, which
+  // checks the owner and writes the action trail (org-console.mjs consoleBusRestart).
+  else if (words[0] === 'reload' && words.length === 2) { allowed([], []); result = await consoleBusRestart(ctx, words[1], deps.consoleRequest ?? {}); }
  else if (words[0] === 'show' && words.length === 2) { allowed(['--json'], []); result = await showOrg(ctx, words[1]); }
  else if (words[0] === 'list' && words.length === 1) { allowed(['--json'], []); for (const entry of await listOrgs(ctx)) if (entry.state === 'active' || entry.state === 'archived') accepted.push(await showOrg(ctx, entry.id, { includeArchived: true })); result = accepted; }
  else if ((words[0] === 'queue' && words.length === 3) || (words[0] === 'project' && words[1] === 'repo' && words.length === 5)) {
@@ -14,6 +14,8 @@ export const PROJECT_USAGE = 'mosaic project init <business> <project> [--tester
 // and check above work on the repository on disk and never contact the bus, except that
 // init --tester (row 175, #1673) binds the tester once before it writes.
 export const PROJECT_BUS_USAGE = [
+  'mosaic project system-types <name-or-id> [--business <id>] [--json]',
+  'mosaic project system-types-set <name-or-id> --types <comma-separated-ids> [--business <id>]',
  'mosaic project create <name> [--repo <repo>] [--business <id>] [--tester]',
  'mosaic project list [--archived] [--business <id>] [--json] [--tester]',
  'mosaic project archive <name-or-id> [--business <id>]',
@@ -28,8 +30,8 @@ export async function projectBusCommand(args, io, callFor) {
    ? { flags: ['--tester'], values: ['--repo', '--business'] }
    : sub === 'list'
      ? { flags: ['--json', '--tester', '--archived'], values: ['--business'] }
-      : { flags: [], values: ['--business'] });
-  const one = sub === 'create' || sub === 'archive' || sub === 'unarchive';
+      : { flags: sub === 'system-types' ? ['--json'] : [], values: sub === 'system-types-set' ? ['--business', '--types'] : ['--business'] });
+  const one = ['create', 'archive', 'unarchive', 'system-types', 'system-types-set'].includes(sub);
  if (parsed.positional.length !== (one ? 1 : 0))
    throw new CliError(`project ${sub} takes ${one ? (sub === 'create' ? 'one name' : 'one name or id') : 'no arguments'}\n${PROJECT_BUS_USAGE}`, 4);
  const call = callFor(parsed);
@@ -45,6 +47,17 @@ export async function projectBusCommand(args, io, callFor) {
    }
    return io.stdout.write(`created project ${name}  id ${made.id}\n`);
  }
+  if (sub === 'system-types' || sub === 'system-types-set') {
+    const projects = await call('project.list', { includeArchived: true });
+    const ref = parsed.positional[0];
+    const hit = projects.find(p => p.id === ref) ?? projects.find(p => p.name === ref);
+    if (!hit) throw new CliError(`no project is named or numbered ${JSON.stringify(ref)}`, 2);
+    const write = sub === 'system-types-set';
+    if (write && parsed.values['--types'] === undefined) throw new CliError('--types is required (an empty string clears the list)', 4);
+    const systemTypes = parsed.values['--types'] ? parsed.values['--types'].split(',') : [];
+    const result = await call(write ? 'project.system-types.set' : 'project.system-types', { project: hit.id, ...(write ? { systemTypes } : {}) });
+    return io.stdout.write(JSON.stringify(result, null, 2) + '\n');
+  }
  // #797 MVP3: the owner's reversible archive. Resolution reads the full list, archived included,
  // so an archived project can be named for unarchive.
  if (sub === 'archive' || sub === 'unarchive') {
@@ -0,0 +1,187 @@
+// U1 (#1873): `mosaic console restart` and `mosaic org reload ID` are the F3 page controls from a
+// terminal. Each test runs the real scripts/mosaic on a scratch instance made by bootstrap.sh, and
+// checks the refusal before any read, the request to the Console's own route and the action trail
+// that route writes. The supervised Console is the real one; the org reload success path runs
+// against an in-process Console whose bus service is a fake, so no bus host starts.
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { spawn, spawnSync } from 'node:child_process';
+import { chmodSync, existsSync, mkdirSync, mkdtempSync, readFileSync, rmSync, statSync, writeFileSync } from 'node:fs';
+import { request } from 'node:http';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import { reserveOrg, activateOrg } from '../../organization/src/org-registry.mjs';
+import { processState } from '../../seat/src/process-state.mjs';
+import { startServer } from '../../webui/src/serve.mjs';
+import { createDevOwner } from '../../webui/src/dev-owner.mjs';
+import { createOrgAdmin } from '../../webui/src/org-admin.mjs';
+import { actionTrail } from '../../webui/src/action-trail.mjs';
+import { close } from '../../webui/tests/fixture.mjs';
+import { humanEnv } from './helpers.mjs';
+import { consoleStart, consoleStop } from '../src/org-console.mjs';
+
+const REPO = new URL('../../../', import.meta.url).pathname;
+const MOSAIC = join(REPO, 'scripts/mosaic');
+const FORBIDDEN = [7332, 7340, 7341, 33223, 17450, 17443, 44307, 7350];
+const DEV = { provider: 'local-dev', iss: 'local-dev', sub: 'local-dev-owner', name: 'Local operator' };
+
+// A scratch instance, as bootstrap.sh makes one, with org alpha active.
+async function instance(t) {
+  const home = mkdtempSync(join(tmpdir(), 'u1-'));
+  const env = humanEnv({ HOME: home, MOSAIC_CONFIG: join(home, '.config/mosaic-u1test/config.json') });
+  const setup = spawnSync(join(REPO, 'scripts/bootstrap.sh'), ['--instance', 'u1test'], { env, encoding: 'utf8' });
+  assert.equal(setup.status, 0, setup.stderr);
+  const ctx = { configDir: join(home, '.config/mosaic-u1test'), dataRoot: join(home, '.mosaic-u1test'), instance: 'u1test', env };
+  await reserveOrg(ctx, 'alpha'); await activateOrg(ctx, 'alpha');
+  t.after(async () => { try { await consoleStop(ctx); } catch {} rmSync(home, { recursive: true, force: true }); });
+  return { ctx, env, trailFile: join(ctx.dataRoot, 'console/actions.jsonl') };
+}
+// The CLI as a child, without blocking this process: the in-process Console must keep answering.
+function mosaic(env, args, timeout = 60000) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(MOSAIC, args, { env, stdio: ['ignore', 'pipe', 'pipe'] });
+    let stdout = '', stderr = '';
+    child.stdout.setEncoding('utf8').on('data', c => { stdout += c; });
+    child.stderr.setEncoding('utf8').on('data', c => { stderr += c; });
+    const timer = setTimeout(() => child.kill('SIGKILL'), timeout);
+    child.on('error', reject);
+    child.on('close', status => { clearTimeout(timer); resolve({ status, stdout, stderr }); });
+  });
+}
+const trailLines = file => existsSync(file) ? readFileSync(file, 'utf8').split('\n').filter(Boolean).map(l => { const { at, ...e } = JSON.parse(l); assert.ok(Number.isFinite(Date.parse(at))); return e; }) : [];
+function get(port, path) {
+  return new Promise((resolve, reject) => {
+    request({ host: '127.0.0.1', port, path, headers: { host: `127.0.0.1:${port}` } }, res => {
+      let text = ''; res.setEncoding('utf8'); res.on('data', c => { text += c; });
+      res.on('end', () => resolve({ status: res.statusCode, body: JSON.parse(text) }));
+    }).on('error', reject).end();
+  });
+}
+// console.json naming a Console that runs in this test process (same checks as a real one).
+function recordConsole(ctx, url, { pid = process.pid, startTime = processState(process.pid).startTime } = {}) {
+  const dir = join(ctx.dataRoot, 'console');
+  mkdirSync(dir, { recursive: true, mode: 0o700 }); chmodSync(dir, 0o700);
+  const file = join(dir, 'console.json');
+  writeFileSync(file, JSON.stringify({ pid, startTime, url }), { mode: 0o600 }); chmodSync(file, 0o600);
+}
+
+test('both verbs refuse inside an agent run before any config is read', async () => {
+  // The config path is not an instance config, so a read would refuse with another message.
+  // humanEnv strips agent markers, so the marker goes in after it.
+  const env = { ...humanEnv({ MOSAIC_CONFIG: '/nonexistent/u1/config.json' }), CLAUDECODE: '1' };
+  for (const args of [['console', 'restart'], ['org', 'reload', 'alpha']]) {
+    const r = await mosaic(env, args);
+    assert.equal(r.status, 3, `${args.join(' ')}: ${r.stderr}`);
+    assert.match(r.stderr, /outside any agent run \(found CLAUDECODE/);
+    assert.equal(r.stdout, '');
+  }
+});
+
+test('with no live Console both verbs refuse and nothing is written', { timeout: 90000 }, async t => {
+  const { ctx, env, trailFile } = await instance(t);
+  for (const args of [['console', 'restart'], ['org', 'reload', 'alpha']]) {
+    const r = await mosaic(env, args);
+    assert.equal(r.status, 3, `${args.join(' ')}: ${r.stderr}`);
+    assert.match(r.stderr, /no Console runs for this instance/);
+  }
+  recordConsole(ctx, 'http://127.0.0.1:1/', { pid: 2147483647, startTime: '1' });
+  const stale = await mosaic(env, ['console', 'restart']);
+  assert.equal(stale.status, 3, stale.stderr);
+  assert.match(stale.stderr, /is not running/);
+  const bad = await mosaic(env, ['org', 'reload', 'Bad/Id']);
+  assert.equal(bad.status, 4, bad.stderr);
+  assert.match(bad.stderr, /invalid organization id/);
+  assert.equal((await mosaic(env, ['console', 'restart', 'extra'])).status, 4);
+  assert.equal(existsSync(trailFile), false);
+});
+
+test('mosaic console restart relaunches a supervised Console and the trail records it', { timeout: 120000 }, async t => {
+  const { ctx, env, trailFile } = await instance(t);
+  const warnings = [];
+  const result = await consoleStart(ctx, { devLocalOwner: true, port: 'auto', warn: s => warnings.push(s) });
+  t.after(async () => { result.stop(); await result.done; });
+  const port = Number(new URL(result.url).port);
+  assert.ok(!FORBIDDEN.includes(port));
+  const before = (await get(port, '/api/config')).body;
+  assert.equal(before.consoleRestart, true);
+  const r = await mosaic(env, ['console', 'restart']);
+  assert.equal(r.status, 0, r.stderr);
+  const answer = JSON.parse(r.stdout);
+  assert.equal(answer.outcome, 'restarted'); assert.equal(answer.from, before.boot);
+  assert.equal(typeof answer.boot, 'string'); assert.notEqual(answer.boot, before.boot);
+  assert.equal((await get(port, '/api/config')).body.boot, answer.boot);
+  assert.deepEqual(trailLines(trailFile), [{ by: DEV, action: 'console.restart', outcome: 'restarting', boot: before.boot }]);
+  assert.equal(statSync(trailFile).mode & 0o777, 0o600);
+  assert.deepEqual(warnings, ['mosaic: console asked for a restart; relaunching on the same arguments\n']);
+});
+
+test('a detached Console refuses mosaic console restart, and org reload of an unknown org, with no trail', { timeout: 90000 }, async t => {
+  const { ctx, env, trailFile } = await instance(t);
+  const result = await consoleStart(ctx, { devLocalOwner: true, detach: true, port: 'auto', warn: () => {} });
+  const port = Number(new URL(result.url).port);
+  assert.ok(!FORBIDDEN.includes(port));
+  const r = await mosaic(env, ['console', 'restart']);
+  assert.equal(r.status, 3, r.stderr);
+  assert.match(r.stderr, /console restart refused \(not-supervised\)/);
+  // The real organization service refuses an org that does not exist before any trail line.
+  const unknown = await mosaic(env, ['org', 'reload', 'nosuch']);
+  assert.equal(unknown.status, 3, unknown.stderr);
+  assert.match(unknown.stderr, /org reload refused \(org-[a-z-]+\)/);
+  assert.equal((await get(port, '/api/config')).status, 200);
+  assert.equal(existsSync(trailFile), false);
+  assert.equal((await consoleStop(ctx)).stopped, true);
+});
+
+// The F3 bus control through the Console's own route: a stopped bus starts and a running one restarts.
+function fakeAdmin(ctx) {
+  const calls = [];
+  let running = false;
+  const known = id => { if (id !== 'acme') throw Object.assign(new Error('unknown organization'), { code: 'org-unknown' }); };
+  const service = { showOrg: async (c, id) => { known(id); return { id, root: join(ctx.dataRoot, 'org-runtime', id), revision: 1, doc: {}, principal: c.principal }; } };
+  const bus = {
+    busStatus: async (c, id) => { known(id); return { org: id, instance: ctx.instance, root: join(ctx.dataRoot, 'org-runtime', id), socket: '/run/u1.sock', healthy: running, pid: running ? 4242 : null }; },
+    busStart: async (c, id, opts) => { calls.push(['busStart', id, opts]); running = true; return { org: id, pid: 4242, socket: '/run/u1.sock', root: join(ctx.dataRoot, 'org-runtime', id) }; },
+    busRestart: async (c, id) => { calls.push(['busRestart', id]); return { org: id, pid: 4343, socket: '/run/u1.sock', root: join(ctx.dataRoot, 'org-runtime', id) }; },
+  };
+  const registry = { listOrgs: async () => [{ id: 'acme', state: 'active' }] };
+  return { calls, admin: createOrgAdmin({ service, registry, bus, context: async () => ({ configDir: ctx.configDir, dataRoot: ctx.dataRoot, instance: ctx.instance }) }) };
+}
+
+test('mosaic org reload starts or restarts the bus through the Console route and the trail records each', { timeout: 90000 }, async t => {
+  const { ctx, env, trailFile } = await instance(t);
+  const f = fakeAdmin(ctx);
+  const server = await startServer({ port: 0, board: 'http://127.0.0.1:9', sso: createDevOwner(), send: async () => ({}), orgAdmin: f.admin, log: () => {}, trail: actionTrail(join(ctx.dataRoot, 'console')) });
+  t.after(() => close(server));
+  const port = server.address().port;
+  assert.ok(!FORBIDDEN.includes(port));
+  recordConsole(ctx, `http://127.0.0.1:${port}/`);
+  let r = await mosaic(env, ['org', 'reload', 'acme']);
+  assert.equal(r.status, 0, r.stderr);
+  assert.deepEqual(JSON.parse(r.stdout), { outcome: 'done', step: 'bus-restart', restarted: false, healthy: true, receipt: { org: 'acme', pid: 4242, socket: '<host path>', root: '<data root>/org-runtime/acme' }, verb: 'mosaic bus start acme --dev-local-owner --detach' });
+  r = await mosaic(env, ['org', 'reload', 'acme']);
+  assert.equal(r.status, 0, r.stderr);
+  const second = JSON.parse(r.stdout);
+  assert.equal(second.restarted, true); assert.equal(second.verb, 'mosaic bus restart acme'); assert.equal(second.receipt.pid, 4343);
+  assert.deepEqual(f.calls, [['busStart', 'acme', { detach: true, devLocalOwner: true, pm: false }], ['busRestart', 'acme']]);
+  // An unknown org is refused by the route before the trail (as org-unavailable, which does not say
+  // whether it exists); extra arguments never reach the Console.
+  const unknown = await mosaic(env, ['org', 'reload', 'other']);
+  assert.equal(unknown.status, 3, unknown.stderr);
+  assert.match(unknown.stderr, /org reload refused \(org-unavailable\)/);
+  assert.equal((await mosaic(env, ['org', 'reload', 'acme', 'extra'])).status, 4);
+  assert.deepEqual(trailLines(trailFile), [
+    { by: DEV, action: 'bus.restart', org: 'acme', outcome: 'requested', running: false },
+    { by: DEV, action: 'bus.restart', org: 'acme', outcome: 'done' },
+    { by: DEV, action: 'bus.restart', org: 'acme', outcome: 'requested', running: true },
+    { by: DEV, action: 'bus.restart', org: 'acme', outcome: 'done' },
+  ]);
+  // A read-only Console (no --send) refuses, and the CLI reports the Console's own reason.
+  await close(server);
+  const readonly = await startServer({ port: 0, board: 'http://127.0.0.1:9', sso: createDevOwner(), orgAdmin: f.admin, log: () => {}, trail: actionTrail(join(ctx.dataRoot, 'console')) });
+  t.after(() => close(readonly));
+  recordConsole(ctx, `http://127.0.0.1:${readonly.address().port}/`);
+  const denied = await mosaic(env, ['org', 'reload', 'acme']);
+  assert.equal(denied.status, 3, denied.stderr);
+  assert.match(denied.stderr, /org reload refused \(read-only\): start the Console with --send/);
+  assert.equal(trailLines(trailFile).length, 4);
+});
@@ -12,6 +12,7 @@ test('organization CLI renders, validates, creates, updates and initializes git'
 const file = join(home, 'alpha.json'); const invoke = (...args) => { const r = run(env, ...args); assert.equal(r.status, 0, r.stderr); return r.stdout; };
 invoke('org', 'template', 'render', 'alpha', '--fixture', 'local', '--output', file);
 invoke('org', 'validate', file); invoke('org', 'create', 'alpha', '--from', file);
+ assert.deepEqual(JSON.parse(invoke('org', 'system-types', 'enabled', 'alpha')), { organization: 'alpha', enabled: [] });
 const bootCheck = spawnSync(process.execPath, ['--input-type=module', '-e', `import {loadSystem, bootConfig} from './packages/cli/src/config.mjs'; const system=loadSystem({env:process.env, instance:'orgtest'}); bootConfig({system,businessId:'alpha',env:process.env});`], { cwd: repo, env, encoding: 'utf8' }); assert.equal(bootCheck.status, 0, bootCheck.stderr);
 let info = JSON.parse(invoke('org', 'show', 'alpha', '--json')); assert.equal(info.id, 'alpha'); assert.equal(JSON.parse(invoke('org', 'list', '--json')).length, 1);
 invoke('org', 'update', 'alpha', '--from', file, '--if-revision', String(info.revision));
@@ -306,7 +306,7 @@ test('#811 migration readers follow the engine order and refuse malformed pairs'
 assert.notEqual(engineSource,source);
 const engine=await import(`data:text/javascript;base64,${Buffer.from(engineSource).toString('base64')}`);
 const pairs=engine.migrations.map(({from,to})=>[from,to]);
- assert.equal(pairs.length,18);assert.deepEqual(pairs.at(-1),['3s','3t']);
+ assert.equal(pairs.length,19);assert.deepEqual(pairs.at(-1),['3t','3u']);
 const release=readFileSync(join(ROOT,'scripts/stack-release.sh'),'utf8');
 const fn=(name)=>{const m=release.match(new RegExp(`^${name}\\(\\) \{[\\s\\S]*?^\}`, 'm'));assert.ok(m,name);return m[0]};
 const functions=['copy_schema','target_schema','plan_steps'].map(fn).join('\n');
@@ -885,7 +885,7 @@ const COUNTED=/^COUNTED="([^"]*)"$/m.exec(srText)[1].split(' ');
 const STORE_JS=/^STORE_JS='([\s\S]*?)'$/m.exec(srText)[1];
 // sage-1163's list 2, written out so that a table dropped from the script's COUNTED fails T45 as
 // well as T46.
-const LISTED=['role_claims','thread_claims','decision_events','messages','deliveries','task_snapshots','projects','project_archives','threads','sessions','session_defaults','thread_opens','thread_shares','instance_names','usage_records','session_ops','message_cancels','request_events','request_effects','request_snapshots','request_snapshot_events','request_project_events'];
+const LISTED=['role_claims','thread_claims','decision_events','messages','deliveries','task_snapshots','projects','project_archives','threads','sessions','session_defaults','thread_opens','thread_shares','instance_names','usage_records','session_ops','message_cancels','request_events','request_effects','request_snapshots','request_snapshot_events','request_project_events','project_system_types'];
 const LATE='2999-01-01T00:00:00.000Z';
 const addRow=(file,table,at=LATE)=>{const db=new DatabaseSync(file);db.exec(`CREATE TABLE IF NOT EXISTS ${table} (seq INTEGER PRIMARY KEY, at TEXT NOT NULL)`);db.prepare(`INSERT INTO ${table} (at) VALUES (?)`).run(at);db.close()};

@@ -903,7 +903,7 @@ test('T45 row 181 items 2 and 3: the restore guard counts events and every COUNT
  both(store('3f.sqlite',['events'],['events','instance_names']),'1\t1 event(s)\n');
  both(store('none.sqlite',[],['instance_names']),'0\t0 event(s)\n');
 });
- for(const x of ['instance_names','usage_records'])await t.test(`one ${x} row and no event refuses before any stop; --events 1 restores`,async(t)=>{
+ for(const x of ['instance_names','usage_records','project_system_types'])await t.test(`one ${x} row and no event refuses before any stop; --events 1 restores`,async(t)=>{
  const e=await mk(t);await seed(e);
  assert.equal((await run(e,'activate',C,'acme','--migrate')).code,0);const act=pointer(e).activation;
  addRow(e.store,x);
@@ -925,10 +925,10 @@ test('T45 row 181 items 2 and 3: the restore guard counts events and every COUNT
  assert.equal(r.code,3,r.out+r.err);assert.ok(r.err.endsWith(`stack-release: refusing restore-mismatch: cannot count the rows after ${stamp}\n`),r.err);
  assert.deepEqual(fp(e),before);assert.deepEqual(startsStops(e,n),[]);assert.equal(logLines(e).at(-1).code,'restore-mismatch');
 });
- await t.test('the in-run recount counts the listed tables too',async(t)=>{
+ for(const x of ['thread_opens','project_system_types'])await t.test(`the in-run recount counts the listed tables too (${x})`,async(t)=>{
  const e=await mk(t);await seed(e);
  assert.equal((await run(e,'activate',C,'acme','--migrate')).code,0);const act=pointer(e).activation;
-  fault(e,'stop-writes-row','thread_opens');
+  fault(e,'stop-writes-row',x);
  const r=await run(e,'rollback','acme','--restore',act);assert.equal(r.code,1,r.out+r.err);
  assert.equal(r.err,rolledBack('post-backup-events',C));
  assert.ok(r.out.includes('; 0 event(s) were written after the backup\n'),r.out);
@@ -0,0 +1,53 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { orgCommand } from '../src/org.mjs';
+import { projectBusCommand } from '../src/project.mjs';
+
+test('org installed system types and project selection reads print JSON', async () => {
+  let output = '';
+  const io = { stdout: { write: s => { output += s; } }, env: {} };
+  await orgCommand(['system-types', 'installed'], io);
+  assert.deepEqual(JSON.parse(output).map(x => x.id), ['business-management', 'coding', 'creative-writing', 'marketing', 'montage']);
+  output = '';
+  const calls = [];
+  await projectBusCommand(['system-types', 'work', '--business', 'demo', '--json'], io, () => async (verb, args) => {
+    calls.push([verb, args]);
+    return verb === 'project.list' ? [{ id: 'project-id', name: 'work' }] : { project: 'project-id', selected: ['coding'], active: ['coding'], inactive: [] };
+  });
+  assert.deepEqual(calls.map(x => x[0]), ['project.list', 'project.system-types']);
+  assert.deepEqual(JSON.parse(output).active, ['coding']);
+});
+
+// sys1-review P2: both commands go through run() and the real CLI channel module, so a verb the
+// channel does not admit fails here. A disabled channel and an agent run still refuse.
+test('project system-types and system-types-set pass the CLI channel', async t => {
+  const { run } = await import('../src/cli.mjs');
+  const { fixture, humanEnv, io: mkio, tmp } = await import('./helpers.mjs');
+  const root = tmp(t), f = fixture(root);
+  const P = '10000000-0000-4000-8000-000000000001';
+  const transportFor = channels => {
+    const calls = [];
+    const transport = () => async (verb, args) => {
+      if (verb === 'plugins') return { business: 'acme', revision: 'a'.repeat(64), plugins: { channel: channels } };
+      calls.push([verb, args]);
+      if (verb === 'project.list') return [{ id: P, at: '2026-11-09T00:00:00.000Z', name: 'work', repo: null }];
+      if (verb === 'project.system-types') return { project: P, selected: ['coding'], active: ['coding'], inactive: [] };
+      if (verb === 'project.system-types.set') return { project: P, selected: args.systemTypes, active: args.systemTypes, inactive: [] };
+      throw Object.assign(new Error(verb), { code: 'bus-refused' });
+    };
+    return { calls, transport };
+  };
+  const read = transportFor(['cli']), rx = mkio(humanEnv(f.env));
+  assert.equal(await run(['project', 'system-types', 'work', '--business', 'acme'], rx, { transport: read.transport }), 0, rx.err?.text);
+  assert.deepEqual(read.calls, [['project.list', { includeArchived: true }], ['project.system-types', { project: P }]]);
+  assert.deepEqual(JSON.parse(rx.out.text).active, ['coding']);
+  const write = transportFor(['cli']), wx = mkio(humanEnv(f.env));
+  assert.equal(await run(['project', 'system-types-set', 'work', '--types', 'coding,marketing', '--business', 'acme'], wx, { transport: write.transport }), 0, wx.err?.text);
+  assert.deepEqual(write.calls.at(-1), ['project.system-types.set', { project: P, systemTypes: ['coding', 'marketing'] }]);
+  const off = transportFor(['webui']), ox = mkio(humanEnv(f.env));
+  assert.equal(await run(['project', 'system-types', 'work', '--business', 'acme'], ox, { transport: off.transport }), 3);
+  assert.deepEqual(off.calls, []);
+  const agent = transportFor(['cli']);
+  assert.notEqual(await run(['project', 'system-types-set', 'work', '--types', 'coding', '--business', 'acme'], mkio({ ...humanEnv(f.env), CODEX_THREAD_ID: 'fixture-agent' }), { transport: agent.transport }), 0);
+  assert.deepEqual(agent.calls, []);
+});
@@ -578,3 +578,8 @@ The local development owner is accepted only through the existing named-instance
 selection on this release's throwaway development instances. Receipt subjects
 name that principal, not Jason. The dev-purpose bootstrap fence is a separate
 follow-up before person-used deployment.
+
+The optional `plugins.system-type` list enables installed system-type modules for
+an organization. Missing means none. Unknown ids refuse validation. Changes
+are owner-only; project selections are separate bus settings and a selection
+whose type is disabled remains recorded as inactive.
@@ -12,6 +12,7 @@ import { parseCredentialRef } from "./credentials.mjs";
 import { loadRole } from "./role.mjs";
 import { END_PROTECTED } from "./vocabulary.mjs";
 import { checkPlugins, checkUsageSettings } from "../../plugins/src/kinds.mjs";
+import { hasModule } from "../../plugins/src/loader.mjs";
 import { checkMapping } from "../../library/src/mapping.mjs";
 import { forkProblem, giteaName, parseGiteaUrl, HOST_SERVICE, CREATIVE_DEFINITIONS } from "./vocabulary.mjs";
 import { checkAppearance } from "./appearance.mjs";
@@ -322,6 +323,9 @@ export function validateOrganizationDocument(document, file, { rolesDir }) {
  // here; whether each module loads is the loader's check, at load time.
  const plugins = document.plugins === undefined ? {}
    : structuredClone(checkPlugins(document.plugins, `${file} plugins`, { fail: (_code, message) => refuse(message) }));
+  for (const id of plugins["system-type"] ?? []) {
+    if (!hasModule("system-type", id)) refuse(`${file} plugins.system-type names unknown module ${id}`);
+  }
  const usage = document.usage === undefined ? undefined : checkUsageSettings(document.usage);
  const appearance = checkAppearance(document.appearance, `${file} appearance`);
  const retired = document.retired === undefined ? undefined : checkRetired(document.retired, roles, file);
@@ -105,6 +105,13 @@ function usageFence(old, document, actor) {
  fail("organization-usage-human-only");
 }

+function systemTypesFence(old, document, actor) {
+  if (canonicalJson(old.plugins?.['system-type'] ?? []) === canonicalJson(document?.plugins?.['system-type'] ?? [])) return;
+  const agents = Object.entries(old.roles ?? {}).flatMap(([name, role]) => [name, `${role?.definition}.${name}`]);
+  if (actor === old.human && actor !== 'tester' && !agents.includes(actor)) return;
+  fail('organization-system-types-human-only');
+}
+
 // C2-06 M11: replyLimits is the human's alone. Any setter that changes it refuses unless the actor is
 // the business's human as the file stood before the write, and no agent or the tester under that
 // name. Compared as M9 compares projects, on the document and again on what lands on disk.
@@ -286,6 +293,7 @@ export function organizationWriter({ dir, rolesDir, barrier = () => {} }) {
        replyLimitsFence(old, document, actor);
        modelQuotaFence(old, document, actor);
        usageFence(old, document, actor);
+        systemTypesFence(old, document, actor);
        validateBusinessDocument(document, file, { rolesDir });
        const bytes = JSON.stringify(document, null, 2) + "\n";
        // Check and log exactly what lands on disk, for every setter: a value JSON
@@ -295,6 +303,7 @@ export function organizationWriter({ dir, rolesDir, barrier = () => {} }) {
        replyLimitsFence(old, written, actor);
        modelQuotaFence(old, written, actor);
        usageFence(old, written, actor);
+        systemTypesFence(old, written, actor);
        validateBusinessDocument(written, file, { rolesDir });
        if (beforeWrite) {
          beforeWrite();
@@ -0,0 +1,29 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { join } from 'node:path';
+import { validateBusinessDocument } from '../src/organization-config.mjs';
+import { businessDoc, REPO_ROLES, tmp } from './helpers.mjs';
+
+test('organization enables only installed system types; absent means none', () => {
+  const root = tmp(), doc = businessDoc(root), file = join(root, 'businesses/acme.json');
+  const validate = () => validateBusinessDocument(doc, file, { rolesDir: REPO_ROLES });
+  assert.deepEqual(validate().plugins['system-type'] ?? [], []);
+  doc.plugins = { 'system-type': ['coding', 'montage'] };
+  assert.deepEqual(validate().plugins['system-type'], ['coding', 'montage']);
+  doc.plugins['system-type'] = ['not-installed'];
+  assert.throws(validate, /system-type.*not-installed/);
+});
+
+test('system type changes through the organization writer are owner-only', async t => {
+  const { rolesCopy, writeJson } = await import('./helpers.mjs');
+  const { pluginSettings } = await import('../src/plugin-settings.mjs');
+  const { rmSync } = await import('node:fs');
+  const root = tmp(); t.after(() => rmSync(root, { recursive: true, force: true }));
+  const rolesDir = rolesCopy(root), doc = businessDoc(root), file = join(root, 'businesses/acme.json');
+  writeJson(file, doc);
+  const settings = pluginSettings({ dir: root, rolesDir });
+  const revision = settings.read('acme').revision;
+  assert.throws(() => settings.set('acme', { revision, plugins: { 'system-type': ['coding'] } }, 'tester'), /human-only/);
+  assert.deepEqual(settings.read('acme').plugins, {});
+  assert.deepEqual(settings.set('acme', { revision, plugins: { 'system-type': ['coding'] } }, doc.human).plugins['system-type'], ['coding']);
+});
@@ -496,3 +496,12 @@ counts; it has no quota authority. See
 record separation, bounded reads and per-key quota settings.

 A harness declares `outputPolicy({ proxy })` as `adapter`, `non-newline-stdout`, or `stdout`. The launcher validates and serializes that declaration; old sessions retain their recorded activity behavior.
+
+### System types
+
+`system-type` modules export `interfaceVersion = 1` and `systemType()`, returning
+`{ id, label, description, toolsets }`. The id is the module directory name;
+`toolsets` is a distinct list of toolset ids. The installed list is discovered
+from module directories, and malformed modules refuse discovery. An organization
+selects modules with `plugins.system-type`; an omitted list enables none. The
+initial five modules declare no toolsets yet.
@@ -6,6 +6,8 @@ const VERBS = new Set([
  "project.create",
  "project.archive",
  "project.unarchive",
+  "project.system-types",
+  "project.system-types.set",
  "thread.list",
  "thread.create",
  "thread.messages",
@@ -80,6 +80,10 @@ export const KINDS = Object.freeze({
  "model-provider": Object.freeze({
    kind: "model-provider", interfaceVersion: 1, exports: Object.freeze(["catalogue", "preflight", "route"]), switch: "list",
  }),
+  // Project system types are installed modules, enabled per organization.
+  "system-type": Object.freeze({
+    kind: "system-type", interfaceVersion: 1, exports: Object.freeze(["systemType"]), switch: "list",
+  }),
  // A Console colour theme (stream S4, PLAN C5). A module is data only: theme() takes nothing and returns
  //   { displayName, tokens: { light, dim, dark } }
  // where each mode is a flat map of the Console's colour custom properties to #rrggbb strings. theme.mjs
@@ -0,0 +1,19 @@
+import { loadInstalled } from './loader.mjs';
+import { NAME } from './kinds.mjs';
+
+// Discovery is fail-closed: malformed or unloadable installed modules cannot be advertised.
+export async function installedSystemTypes() {
+  const { modules, refused } = await loadInstalled('system-type');
+  if (refused.length) throw Object.assign(new Error('system type module refused'), { code: 'system-type-invalid' });
+  return modules.map(({ name, module }) => {
+    const value = module.systemType();
+    if (!value || Object.keys(value).sort().join(',') !== 'description,id,label,toolsets' || value.id !== name ||
+        typeof value.label !== 'string' || !value.label.trim() || /[\r\n]/.test(value.label) ||
+        typeof value.description !== 'string' || !value.description.trim() || /[\r\n]/.test(value.description) ||
+        !Array.isArray(value.toolsets) || value.toolsets.some(t => typeof t !== 'string' || !NAME.test(t)) ||
+        new Set(value.toolsets).size !== value.toolsets.length) {
+      throw Object.assign(new Error(`invalid system type ${name}`), { code: 'system-type-invalid' });
+    }
+    return structuredClone(value);
+  });
+}
@@ -0,0 +1,5 @@
+export const interfaceVersion = 1;
+
+export function systemType() {
+  return { id: "business-management", label: "Business management", description: "Coordinate and manage business operations.", toolsets: [] };
+}
@@ -0,0 +1,5 @@
+export const interfaceVersion = 1;
+
+export function systemType() {
+  return { id: "coding", label: "Coding", description: "Build and maintain software.", toolsets: [] };
+}
@@ -0,0 +1,5 @@
+export const interfaceVersion = 1;
+
+export function systemType() {
+  return { id: "creative-writing", label: "Creative writing", description: "Develop and write creative works.", toolsets: [] };
+}
@@ -0,0 +1,5 @@
+export const interfaceVersion = 1;
+
+export function systemType() {
+  return { id: "marketing", label: "Marketing", description: "Plan and produce marketing work.", toolsets: [] };
+}
@@ -0,0 +1,5 @@
+export const interfaceVersion = 1;
+
+export function systemType() {
+  return { id: "montage", label: "Mosaic Montage", description: "Create and manage media productions.", toolsets: [] };
+}
@@ -6,7 +6,7 @@ import { KINDS, NAME, PluginError, checkPlugins } from "../src/kinds.mjs";
 const code = expected => e => e instanceof PluginError && e.code === expected;

 test("REQ-PLUG-1 REQ-LIMIT-4 the registry: usage-source at interface version 1, limit-check at 2 (row 125), each a list", () => {
-  assert.deepEqual(Object.keys(KINDS), ["usage-source", "limit-check", "search-source", "channel", "harness", "usage", "model-provider", "theme"]);
+  assert.deepEqual(Object.keys(KINDS), ["usage-source", "limit-check", "search-source", "channel", "harness", "usage", "model-provider", "system-type", "theme"]);
  // Stream S4 (PLAN C5): a theme is data. interfaceVersion 1, one export, a list switch.
  assert.deepEqual({ ...KINDS.theme, exports: [...KINDS.theme.exports] }, { kind: "theme", interfaceVersion: 1, exports: ["theme"], switch: "list" });
  assert.ok(Object.isFrozen(KINDS.theme) && Object.isFrozen(KINDS.theme.exports));
@@ -12,7 +12,7 @@ import { validateBusinessDocument } from "../../organization/src/organization-co

 const GOOD = { "usage-source": ["meter"], "limit-check": ["cap"] };
 // What loaded() reports for GOOD: search-source is a kind too, switched off here.
-const GOOD_LOADED = { ...GOOD, "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], theme: [] };
+const GOOD_LOADED = { ...GOOD, "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], "system-type": [], theme: [] };

 // A tree with one good module of each kind, already loaded.
 async function loadedTree(t, options) {
@@ -56,7 +56,7 @@ test("REQ-PLUG-1 fixture modules of each kind switch on from a test organization
  const loader = await s.loader();
  const result = await loader.load(business.plugins);
  assert.deepEqual(result.refused, []);
-  assert.deepEqual(result.loaded, { ...doc.plugins, "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], theme: [] });
+  assert.deepEqual(result.loaded, { ...doc.plugins, "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], "system-type": [], theme: [] });
  assert.equal(loader.modules("usage-source")[0].readTurn(), "fixture-usage");
  assert.equal(loader.modules("limit-check")[0].mayLaunch(), "fixture-limit");
  assert.equal(loader.modules("limit-check")[0].mustStop(), false);
@@ -170,7 +170,7 @@ test("REQ-PLUG-1 a path that becomes unreadable after the lstat checks refuses a
    assert.match(result.refused[0].message, /packages\/plugins can't be read \(EACCES\)/);
    assert.deepEqual(result.refused[0].kept, ["meter"]);
    assert.deepEqual(s.loader.logged.slice(before), result.refused);
-    assert.deepEqual(s.loader.loaded(), { "usage-source": ["meter"], "limit-check": [], "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], theme: [] });
+    assert.deepEqual(s.loader.loaded(), { "usage-source": ["meter"], "limit-check": [], "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], "system-type": [], theme: [] });
  } finally {
    if (lock) chmodSync(lock, 0o755);
  }
@@ -232,7 +232,7 @@ test("REQ-PLUG-1 a kind refused on its first load has nothing switched on, and t
  const loader = await s.loader();
  // meter loads, absent refuses: the whole kind stays off, not half on.
  const result = await loader.load({ "usage-source": ["meter", "absent"], "limit-check": ["cap"] });
-  assert.deepEqual(result.loaded, { "usage-source": [], "limit-check": ["cap"], "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], theme: [] });
+  assert.deepEqual(result.loaded, { "usage-source": [], "limit-check": ["cap"], "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], "system-type": [], theme: [] });
  assert.deepEqual(loader.loaded(), result.loaded);
  assert.deepEqual(loader.modules("usage-source"), []);
  assert.equal(loader.logged.length, 1);
@@ -260,7 +260,7 @@ test("REQ-PLUG-1 the setting's shape: unknown kinds refuse alone, a bad whole se
  await refusesKeepingOld(s, ["meter", "meter"], "bad-setting", "meter", /twice/);
  // An absent key switches the kind off.
  result = await s.loader.load({ "limit-check": ["cap"] });
-  assert.deepEqual(result.loaded, { "usage-source": [], "limit-check": ["cap"], "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], theme: [] });
+  assert.deepEqual(result.loaded, { "usage-source": [], "limit-check": ["cap"], "search-source": [], channel: [], harness: [], usage: [], "model-provider": [], "system-type": [], theme: [] });
 });

 test("REQ-PLUG-1 loads run one at a time, so the last requested setting wins", async t => {
@@ -0,0 +1,19 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { createLoader, loadInstalled } from '../src/loader.mjs';
+
+test('installed system types describe the five modules and unknown names refuse', async () => {
+  const { modules, refused } = await loadInstalled('system-type');
+  assert.deepEqual(refused, []);
+  assert.deepEqual(modules.map(m => m.name), ['business-management', 'coding', 'creative-writing', 'marketing', 'montage']);
+  for (const { name, module } of modules) {
+    const info = module.systemType();
+    assert.equal(info.id, name);
+    assert.ok(info.label && info.description && Array.isArray(info.toolsets));
+    if (name === 'montage') assert.equal(info.label, 'Mosaic Montage');
+  }
+  const loader = createLoader({ log() {} });
+  const result = await loader.load({ 'system-type': ['unknown'] });
+  assert.equal(result.refused.length, 1);
+  assert.deepEqual(result.loaded['system-type'], []);
+});
@@ -27,19 +27,24 @@ export const subjectOk = s => typeof s === 'string' && s.length > 0 && s.length
 // Same protocol as humanTransport in packages/cli/src/transport.mjs: the
 // request on stdin, JSON on stdout, or a bus error code as the last
 // `^[a-z-]{1,64}$` line of stderr.
-export function humanCall({ socket, business, env = process.env, cli = HUMAN_CLI, timeoutMs = 30000, maxBytes = 8 * 1024 * 1024 }) {
-  return (verb, args = {}) => transport({ cli, socket, env: cli === HUMAN_CLI ? { ...env, MOSAIC_BUS_CLI_NONCE: randomBytes(32).toString('hex') } : env, input: { business, verb, args }, timeoutMs, maxBytes });
+export function humanCall({ socket, business, env = process.env, cli = HUMAN_CLI, timeoutMs = 30000, maxBytes = 8 * 1024 * 1024, signal, deadline }) {
+  return (verb, args = {}) => transport({ cli, socket, signal, deadline, env: cli === HUMAN_CLI ? { ...env, MOSAIC_BUS_CLI_NONCE: randomBytes(32).toString('hex') } : env, input: { business, verb, args }, timeoutMs, maxBytes });
 }
-function transport({ cli, socket, env, input, timeoutMs, maxBytes }) {
+function transport({ cli, socket, env, input, timeoutMs, maxBytes, signal, deadline }) {
  return new Promise((resolve, reject) => {
+    const remaining = deadline === undefined ? timeoutMs : Math.min(timeoutMs, deadline - Date.now());
+    if (signal?.aborted || (deadline !== undefined && remaining <= 0)) return reject(new BusReadError('outcome-unknown', 'the bus transport deadline expired'));
    let child;
    try {
      child = spawn(process.execPath, [cli, socket], { env, stdio: ['pipe', 'pipe', 'pipe'] });
    } catch { return reject(new BusReadError('outcome-unknown', 'the bus transport did not start')); }
    const out = [], err = [];
    let size = 0, settled = false;
-    const done = (fn, value) => { if (!settled) { settled = true; clearTimeout(timer); fn(value); } };
-    const timer = setTimeout(() => { child.kill('SIGKILL'); done(reject, new BusReadError('outcome-unknown', 'the bus transport did not finish in time')); }, timeoutMs);
+    const done = (fn, value) => { if (!settled) { settled = true; clearTimeout(timer); signal?.removeEventListener('abort', abort); fn(value); } };
+    const abort = () => { child.kill('SIGKILL'); done(reject, new BusReadError('outcome-unknown', 'the bus transport deadline expired')); };
+    const timer = setTimeout(() => { child.kill('SIGKILL'); done(reject, new BusReadError('outcome-unknown', 'the bus transport did not finish in time')); }, remaining);
+    signal?.addEventListener('abort', abort, { once: true });
+    if (signal?.aborted) abort();
    child.stdout.on('data', chunk => {
      size += chunk.length;
      if (size > maxBytes) { child.kill('SIGKILL'); return done(reject, new BusReadError('response-too-large')); }
@@ -82,9 +87,10 @@ export function consoleCall({ dataRoot, socket, business = null, env = process.e

 // The business is the --business flag, or else the live bus host's, read
 // on every request so a host started after the Console is picked up.
-export function busCaller({ dataRoot, socket, business = null, env = process.env, cli = HUMAN_CLI, timeoutMs = 30000 }) {
+export function busCaller({ dataRoot, socket, business = null, env = process.env, cli = HUMAN_CLI, timeoutMs = 30000, signal, deadline }) {
  return async (verb, args) => {
-    return humanCall({ socket, business: business || hostBusiness(dataRoot), env, cli, timeoutMs })(verb, args);
+    if (signal?.aborted || (deadline !== undefined && Date.now() >= deadline)) throw new BusReadError('outcome-unknown', 'the bus transport deadline expired');
+    return humanCall({ socket, business: business || hostBusiness(dataRoot), env, cli, timeoutMs, signal, deadline })(verb, args);
  };
 }
 function hostBusiness(dataRoot) {
@@ -103,36 +109,10 @@ export const USER_CLI = fileURLToPath(new URL('../../bus/src/user-cli.mjs', impo
 // The Console sets the user nonce itself, so user-cli.mjs doesn't re-exec and the broker sees the
 // Console (`cli.mjs serve`) as its parent (principal.mjs). The human nonce is dropped, so this child
 // can never pass as human-cli, and it only ever runs USER_CLI.
-export function userCall({ socket, business, user, env = process.env, timeoutMs = 30000, maxBytes = 8 * 1024 * 1024 }) {
+export function userCall({ socket, business, user, env = process.env, timeoutMs = 30000, maxBytes = 8 * 1024 * 1024, signal, deadline }) {
  const { MOSAIC_BUS_CLI_NONCE, ...rest } = env;
-  return (verb, args = {}) => new Promise((resolve, reject) => {
-    let child;
-    try {
-      child = spawn(process.execPath, [USER_CLI, socket], { env: { ...rest, MOSAIC_BUS_USER_NONCE: randomBytes(32).toString('hex') }, stdio: ['pipe', 'pipe', 'pipe'] });
-    } catch { return reject(new BusReadError('outcome-unknown', 'the bus transport did not start')); }
-    const out = [], err = [];
-    let size = 0, settled = false;
-    const done = (fn, value) => { if (!settled) { settled = true; clearTimeout(timer); fn(value); } };
-    const timer = setTimeout(() => { child.kill('SIGKILL'); done(reject, new BusReadError('outcome-unknown', 'the bus transport did not finish in time')); }, timeoutMs);
-    child.stdout.on('data', chunk => {
-      size += chunk.length;
-      if (size > maxBytes) { child.kill('SIGKILL'); return done(reject, new BusReadError('response-too-large')); }
-      out.push(chunk);
-    });
-    child.stderr.on('data', chunk => { if (err.length < 64) err.push(chunk); });
-    child.on('error', () => done(reject, new BusReadError('outcome-unknown', 'the bus transport did not start')));
-    child.on('close', status => {
-      if (status === null) return done(reject, new BusReadError('outcome-unknown', 'the bus transport did not finish'));
-      if (status !== 0) {
-        const code = Buffer.concat(err).toString('utf8').trim().split('\n').reverse().find(l => /^[a-z-]{1,64}$/.test(l)) ?? 'invalid-response';
-        return done(reject, new BusReadError(code));
-      }
-      try { done(resolve, JSON.parse(Buffer.concat(out).toString('utf8'))); }
-      catch { done(reject, new BusReadError('invalid-response')); }
-    });
-    child.stdin.on('error', () => {}); // A child that exits early reports through 'close'.
-    child.stdin.end(`${JSON.stringify({ business, user, verb, args })}\n`);
-  });
+  return (verb, args = {}) => transport({ cli: USER_CLI, socket, env: { ...rest, MOSAIC_BUS_USER_NONCE: randomBytes(32).toString('hex') },
+    input: { business, user, verb, args }, timeoutMs, maxBytes, signal, deadline });
 }

 // The business is the --business flag, or else the live bus host's, read on every call, as busCaller does.
@@ -147,9 +127,12 @@ export function busBusiness({ dataRoot, business = null }) {
 }

 // One granted user's caller, for that user's session only.
-export function userCaller({ dataRoot, socket, business = null, user, env = process.env, timeoutMs = 30000 }) {
+export function userCaller({ dataRoot, socket, business = null, user, env = process.env, timeoutMs = 30000, signal, deadline }) {
  const which = busBusiness({ dataRoot, business });
-  return async (verb, args) => userCall({ socket, business: which(), user, env, timeoutMs })(verb, args);
+  return async (verb, args) => {
+    if (signal?.aborted || (deadline !== undefined && Date.now() >= deadline)) throw new BusReadError('outcome-unknown', 'the bus transport deadline expired');
+    return userCall({ socket, business: which(), user, env, timeoutMs, signal, deadline })(verb, args);
+  };
 }

 // A send's error, sorted. The broker writes in one transaction, so any code it
@@ -156,9 +156,12 @@ try {
  const organizations = devOwner ? organizationConsole({
    ctx: { configDir: configDir(), dataRoot: system.dataRoot, instance },
    listOrgs, showOrg, resolveOrg, orgPaths, busStatus: orgBusStatus,
-    options: ({ id, root, paths, session }) => {
-      const owner = busCaller({ dataRoot: root, socket: paths.socket, business: id });
-      const call = session.user === undefined ? owner : userCaller({ dataRoot: root, socket: paths.socket, business: id, user: session.user });
+    // U1 (#1873): the cross-organization read passes `timeoutMs` so a slow bus's children are
+    // killed at its deadline. The org pages pass none and keep the transport default.
+    options: ({ id, root, paths, session, timeoutMs, signal, deadline }) => {
+      const bound = timeoutMs === undefined ? {} : { timeoutMs, signal, deadline };
+      const owner = busCaller({ dataRoot: root, socket: paths.socket, business: id, ...bound });
+      const call = session.user === undefined ? owner : userCaller({ dataRoot: root, socket: paths.socket, business: id, user: session.user, ...bound });
      return {
        ...consoleBus(call, { send: sendOn, ...(session.user === undefined ? {} : { owner }) }),
        decisionWrite: session.user === undefined && sendOn ? consoleCall({ dataRoot: root, socket: paths.socket, business: id }) : null,
@@ -35,8 +35,40 @@ export function organizationConsole({ ctx, listOrgs, showOrg, resolveOrg, orgPat
    }
    return result;
  }
+  // U1 (#1873): the orgs a session belongs to, for the cross-organization read (workspace-read.mjs).
+  // The same admission as `list` and `resolve`: an org the session does not own is skipped, and a
+  // broken org shows only to its verified owner, as invalid. Bus status and options are lazy, so a
+  // stopped bus never gets a transport; `timeoutMs` bounds each bus read the options make.
+  async function members(session, { timeoutMs } = {}) {
+    const entries = await listOrgs(ctx), result = [];
+    for (const entry of entries) {
+      if (entry.state !== 'active') continue;
+      let verified;
+      try { verified = await admitted(entry.id, session); }
+      catch (error) {
+        if (error?.ownerVerified !== true) continue;
+        result.push({ id: entry.id, invalid: true, reason: publicReason(ctx, error) });
+        continue;
+      }
+      const { org, shown, context } = verified, id = entry.id;
+      result.push({
+        id, doc: shown.doc,
+        // Host paths in a refusal or boot reason become relative to the instance before they leave.
+        async status(bound) {
+          let s;
+          try { s = await busStatus(ctx, id, bound); }
+          catch (error) { throw new Error(plainMessage(ctx, typeof error?.message === 'string' ? error.message : 'bus state could not be read')); }
+          const boot = s?.boot && typeof s.boot === 'object' ? { ok: s.boot.ok, at: s.boot.at, lastGood: s.boot.lastGood ?? null, reason: s.boot.reason == null ? null : plainMessage(ctx, s.boot.reason) } : null;
+          return { healthy: s?.healthy === true, pid: Number.isSafeInteger(s?.pid) ? s.pid : null, boot };
+        },
+        options: bound => options({ id, root: org.root, paths: orgPaths(org.root), session, context, doc: shown.doc, ...(timeoutMs === undefined ? {} : { timeoutMs }), ...bound }),
+      });
+    }
+    return result;
+  }
  return Object.freeze({
    list,
+    members,
    async resolve(id, session) {
      const { org, shown, context } = await admitted(id, session);
      let busHealthy = false;
@@ -20,6 +20,7 @@ import { REQUEST_ROUTE, requestHTTP, requestRefuse } from './request-http.mjs';
 import { PROJECT_REMOTE_ROUTE, projectRemoteHTTP } from './project-remote-http.mjs';
 import { orgAdminHTTP, defaultOrgAdmin } from './org-admin.mjs';
 import { consoleRestartHTTP } from './console-restart-http.mjs';
+import { workspaceHTTP } from './workspace-read.mjs';
 import { actor } from './action-trail.mjs';
 import { devHostName } from '../../cli/src/dev-local-owner.mjs';

@@ -770,7 +771,7 @@ async function libraryStatusRead(res, read, search) {
 // `log` takes one line per send attempt that got past sign-in; never the body. `fieldsFile` is for
 // tests; the field table is otherwise the committed packages/tasks/fields.json.
 // `agentWrite` (row 194, D7) is `(verb, args) => Promise` for the Agents section's verbs and instance.request.
-export async function startServer({ host = '127.0.0.1', port = 7330, board = DEFAULT_BOARD, timeout = 20000, bus = null, reads = null, preview = null, sso = null, tester = false, testerSocket = null, testerAuthHeader = null, proof = null, testerProofHeader = null, send = null, settingsWrite = null, projectFiles = null, projectFile = null, projectSave = null, libraryStatus = null, libraryRevert = null, chat = null, nameWrite = null, assistantStop = null, instancesWrite = null, routesWrite = null, agentWrite = null, proxyCall = null, processing = null, decisionWrite = null, requestRead = null, requestWrite = null, userOptions = null, federation = null, organizations = null, preselect = null, routes = [], orgAdmin = null, devAllowHosts = [], log = line => console.log(line), fieldsFile = undefined, restart = null, trail = null, boot = randomUUID() } = {}) {
+export async function startServer({ host = '127.0.0.1', port = 7330, board = DEFAULT_BOARD, timeout = 20000, bus = null, reads = null, preview = null, sso = null, tester = false, testerSocket = null, testerAuthHeader = null, proof = null, testerProofHeader = null, send = null, settingsWrite = null, projectFiles = null, projectFile = null, projectSave = null, libraryStatus = null, libraryRevert = null, chat = null, nameWrite = null, assistantStop = null, instancesWrite = null, routesWrite = null, agentWrite = null, proxyCall = null, processing = null, decisionWrite = null, requestRead = null, requestWrite = null, userOptions = null, federation = null, organizations = null, preselect = null, routes = [], orgAdmin = null, devAllowHosts = [], log = line => console.log(line), fieldsFile = undefined, restart = null, trail = null, boot = randomUUID(), workspaceTimeoutMs = undefined } = {}) {
  // org-lan-bind: the dev owner on the LAN is an explicit opt-in. `devAllowHosts` names the Host
  // names (without a port) a remote browser may use; only the dev owner takes them, and only with
  // them may it bind a non-loopback IPv4 address. SSO, preview and tester listeners stay loopback.
@@ -805,6 +806,8 @@ export async function startServer({ host = '127.0.0.1', port = 7330, board = DEF
  // F3: the owner restarts the Console (console-restart-http.mjs). `restart` is set only under the
  // supervisor; `boot` names this process so an open page can tell when the new one answers.
  registered.add('POST', '/api/console/restart', (req, res, context) => consoleRestartHTTP(req, res, { ...context, restart, trail, boot, log }));
+  // U1 (#1873): one read across every organization the owner belongs to (workspace-read.mjs).
+  registered.add('GET', '/api/workspace', (req, res, context) => workspaceHTTP(req, res, { ...context, organizations, log, ...(workspaceTimeoutMs === undefined ? {} : { timeoutMs: workspaceTimeoutMs }) }));
  const upstream = boardURL(board);
  // `userOptions` (FED R6, #1800) is `session => options`, the bus-backed options over that session
  // user's own transport (console-bus.mjs). Only a signed-in listener has user sessions.
@@ -0,0 +1,344 @@
+// U1 (#1873, PRD 1.20 REQ-WS-1..8): the cross-organization read model behind GET /api/workspace.
+//
+// One snapshot across the bus of every organization the viewer belongs to. Membership is the
+// per-org check the org list and the org pages already use (organizations.mjs `admitted`), so an
+// org the viewer does not belong to is never read and never named. Each org keeps its own bus;
+// this module only fans out over the same per-org options the org pages get (cli.mjs) and merges.
+// There is no second path to a bus and no write.
+//
+// Every org has one deadline. A bus that is down, still starting or slow is marked with a state
+// and a time, and the other orgs still answer. Every merged item carries its org id.
+import { plainMessage } from './org-admin.mjs';
+
+export const WORKSPACE_SECTIONS = Object.freeze(['projects', 'sessions', 'inbox', 'tasks', 'metrics']);
+export const WORKSPACE_POLL_MS = 10000;
+export const WORKSPACE_TIMEOUT_MS = 4000;
+const PROJECT_STATUSES = ['active', 'archived'];
+const PROJECT_STATES = ['working', 'waiting', 'idle', 'none'];
+const SORTS = ['activity', 'name', 'org', 'status'];
+const ORG_ID = /^[a-z0-9][a-z0-9._-]{0,63}$/;
+// A project selector is `<org>:<project uuid or org-file project key>`.
+const PROJECT_SELECTOR = /^([a-z0-9][a-z0-9._-]{0,63}):([A-Za-z0-9._-]{1,128})$/;
+// Only these reach a copied shell command; anything else gets no command.
+const SHELL_SAFE = /^[A-Za-z0-9._:-]{1,128}$/;
+const WEEK_MS = 7 * 24 * 3600 * 1000;
+const PER_ORG_CONCURRENCY = 3;
+
+// The broker reads each section needs. Each name is one human-side read the org pages already make.
+const NEEDS = {
+  projects: ['projects', 'agents', 'claims', 'threads', 'tasks', 'inbox'],
+  sessions: ['agents', 'claims', 'threads', 'projects', 'tasks'],
+  inbox: ['inbox', 'agents', 'tasks', 'projects'],
+  tasks: ['tasks', 'projects', 'inbox'],
+  metrics: ['inbox', 'agents', 'claims', 'tasks', 'projects', 'usage', 'limits', 'decisions'],
+};
+const READS = {
+  inbox: o => o.bus.inbox(),
+  agents: o => o.bus.agents(),
+  claims: o => o.bus['thread.claims'](),
+  threads: o => o.chat.threads({}),
+  tasks: o => o.bus.tasks(),
+  projects: o => o.chat.projects({ includeArchived: true }),
+  usage: o => o.bus.usage(),
+  limits: o => o.bus.limits(),
+  decisions: o => o.bus.decisions('recent'),
+};
+
+export class WorkspaceQueryError extends Error {}
+const bad = message => { throw new WorkspaceQueryError(message); };
+const list = value => value.split(',').map(v => v.trim()).filter(Boolean);
+function oneOf(name, value, allowed) {
+  const values = list(value);
+  if (!values.length) bad(`${name} is empty`);
+  for (const v of values) if (!allowed.includes(v)) bad(`${name} takes ${allowed.join(', ')}`);
+  return new Set(values);
+}
+
+// Strict: an unknown or repeated key is refused, so a misspelled filter never reads as "all".
+export function parseWorkspaceQuery(search = '') {
+  const params = new URLSearchParams(search), seen = new Set();
+  const q = { sections: new Set(WORKSPACE_SECTIONS), orgs: null, status: new Set(['active']), state: null, name: null, sort: 'activity', order: null, project: null };
+  for (const [key, value] of params) {
+    if (seen.has(key)) bad(`${key} is given twice`);
+    seen.add(key);
+    if (key === 'sections') q.sections = oneOf('sections', value, WORKSPACE_SECTIONS);
+    else if (key === 'org') {
+      const ids = list(value);
+      if (!ids.length || ids.some(id => !ORG_ID.test(id))) bad('org takes organization ids, comma separated');
+      q.orgs = new Set(ids);
+    } else if (key === 'status') q.status = oneOf('status', value, PROJECT_STATUSES);
+    else if (key === 'state') q.state = oneOf('state', value, PROJECT_STATES);
+    else if (key === 'name') {
+      if (!value.trim() || value.length > 200) bad('name takes 1 to 200 characters');
+      q.name = value.trim().toLowerCase();
+    } else if (key === 'sort') { if (!SORTS.includes(value)) bad(`sort takes ${SORTS.join(', ')}`); q.sort = value; }
+    else if (key === 'order') { if (!['asc', 'desc'].includes(value)) bad('order takes asc or desc'); q.order = value; }
+    else if (key === 'project') {
+      const m = PROJECT_SELECTOR.exec(value);
+      if (!m) bad('project takes <org>:<project id or key>');
+      q.project = { org: m[1], key: m[2] };
+    } else bad(`unknown query key ${key}`);
+  }
+  q.order ??= q.sort === 'activity' ? 'desc' : 'asc';
+  return q;
+}
+
+const TIMED_OUT = Symbol('timed-out');
+function deadline(ms) {
+  const controller = new AbortController(), until = Date.now() + ms;
+  let timer;
+  const promise = new Promise(resolve => { timer = setTimeout(() => { controller.abort(); resolve(TIMED_OUT); }, ms); timer.unref?.(); });
+  return { promise, signal: controller.signal, deadline: until, abort: () => controller.abort(), clear: () => clearTimeout(timer) };
+}
+const code = e => (typeof e?.code === 'string' && /^[a-z-]{1,64}$/.test(e.code) ? e.code : 'read-failed');
+
+// Runs `names` reads `limit` at a time and stops starting new ones once `stopped()` says so.
+async function pooled(names, limit, run, stopped) {
+  const out = {}, queue = [...names];
+  const worker = async () => {
+    while (queue.length && !stopped()) {
+      const name = queue.shift();
+      try { out[name] = { ok: true, value: await run(name) }; } catch (e) { out[name] = { ok: false, error: code(e) }; }
+    }
+  };
+  await Promise.all(Array.from({ length: Math.min(limit, names.length) }, worker));
+  return out;
+}
+
+const iso = ms => new Date(ms).toISOString();
+const latest = values => values.filter(v => typeof v === 'string' && !Number.isNaN(Date.parse(v))).sort().at(-1) ?? null;
+function median(values) {
+  if (!values.length) return null;
+  const s = [...values].sort((a, b) => a - b), mid = s.length >> 1;
+  return s.length % 2 ? s[mid] : Math.round((s[mid - 1] + s[mid]) / 2);
+}
+
+// One org's bus state and reads. Never throws: every failure becomes the org's state.
+async function readOrg(member, needs, { timeoutMs, now, ctx }) {
+  const started = now();
+  const head = { org: member.id, label: member.id, theme: member.doc?.appearance?.theme ?? null, tracker: member.doc?.tracker ? 'vikunja' : 'built-in', roles: Object.keys(member.doc?.roles ?? {}).sort() };
+  const finish = (state, extra = {}) => ({ ...head, state, at: iso(now()), readMs: now() - started, ...extra });
+  if (member.invalid) return { org: { ...head, roles: [], state: 'invalid', at: iso(now()), readMs: 0, reason: member.reason } };
+  const limit = deadline(timeoutMs);
+  const bound = { signal: limit.signal, deadline: limit.deadline };
+  const invalid = () => ({ org: finish('invalid', { error: 'invalid-response' }) });
+  try {
+    let status;
+    try {
+      status = await Promise.race([member.status(bound), limit.promise]);
+    } catch (e) {
+      if (limit.signal.aborted || Date.now() >= limit.deadline) return { org: finish('timeout', { reason: `the bus state was not read within ${timeoutMs} ms` }) };
+      // A stale or mismatched host state (org-bus.mjs checkedState) is a stopped bus to the reader.
+      // members() has already made host paths relative; any absolute path left is withheld.
+      return { org: finish('down', { reason: plainMessage(ctx, typeof e?.message === 'string' ? e.message : 'bus state could not be read').slice(0, 300) }) };
+    }
+    if (status === TIMED_OUT || limit.signal.aborted || Date.now() >= limit.deadline) return { org: finish('timeout', { reason: `the bus state was not read within ${timeoutMs} ms` }) };
+    if (status?.healthy !== true) {
+      const boot = status?.boot && typeof status.boot === 'object' ? { ok: status.boot.ok === true, at: status.boot.at ?? null, lastGood: status.boot.lastGood ?? null } : null;
+      if (Number.isSafeInteger(status?.pid)) return { org: finish('starting', { reason: 'the bus host is running but does not answer yet', boot }) };
+      const reason = boot && !boot.ok && typeof status.boot.reason === 'string'
+        ? `the bus refused to start: ${plainMessage(ctx, status.boot.reason).slice(0, 300)}`
+        : 'the bus is not running';
+      return { org: finish('down', { reason, boot }) };
+    }
+    const options = member.options(bound);
+    const reads = pooled(needs, PER_ORG_CONCURRENCY, name => READS[name](options), () => limit.signal.aborted || Date.now() >= limit.deadline);
+    const results = await Promise.race([reads, limit.promise]);
+    if (results === TIMED_OUT || limit.signal.aborted || Date.now() >= limit.deadline) return { org: finish('timeout', { reason: `the bus did not answer within ${timeoutMs} ms` }) };
+    const errors = Object.fromEntries(Object.entries(results).filter(([, r]) => !r.ok).map(([name, r]) => [name, r.error]));
+    const data = Object.fromEntries(Object.entries(results).filter(([, r]) => r.ok).map(([name, r]) => [name, r.value]));
+    if (Object.values(errors).includes('invalid-response') || !Object.entries(data).every(([name, value]) => validRead(name, value))) return invalid();
+    const org = finish('ok', { errors });
+    return { org, rows: orgRows(org, data, member.doc, now()) };
+  } catch { return invalid(); } finally { if (Date.now() >= limit.deadline) limit.abort(); limit.clear(); }
+}
+
+// Validate the fields consumed by projection and by the cross-org filters and sorts. Unknown
+// fields are retained by the bus contract; optional fields can be absent or null.
+const record = v => v !== null && typeof v === 'object' && !Array.isArray(v);
+const optional = (v, check) => v == null || check(v);
+const string = v => typeof v === 'string';
+const strings = (v, keys) => keys.every(k => optional(v[k], string));
+const records = v => Array.isArray(v) && v.every(record);
+function validRead(name, value) {
+  if (name === 'usage' || name === 'limits') {
+    if (!record(value)) return false;
+    return name === 'limits' ? optional(value.tokens, records) : optional(value.total, record);
+  }
+  if (!records(value)) return false;
+  return value.every(v => {
+    if (name === 'projects') return string(v.id) && strings(v, ['repo', 'name', 'at']);
+    if (name === 'threads') return strings(v, ['id', 'project']);
+    if (name === 'claims') return strings(v, ['thread', 'instance', 'holder_run', 'harness', 'at']);
+    if (name === 'inbox') return string(v.id) && strings(v, ['question', 'class', 'raised_by_role', 'task_ref', 'at']) && optional(v.options, a => records(a) && a.every(o => strings(o, ['key', 'text'])));
+    if (name === 'agents') return strings(v, ['role', 'holder_run', 'harness', 'state', 'at']) && optional(v.working, w => record(w) && strings(w, ['since'])) && ['inputNeeded', 'stranded'].every(k => optional(v[k], records)) && (v.inputNeeded ?? []).every(d => strings(d, ['task_ref', 'at']));
+    if (name === 'tasks') return strings(v, ['task_ref', 'project_key', 'at']) && optional(v.fields, f => record(f) && strings(f, ['title', 'bucket']) && ['assignees', 'labels'].every(k => optional(f[k], Array.isArray)));
+    if (name === 'decisions') return strings(v, ['at']) && optional(v.closed, c => record(c) && strings(c, ['op', 'at']));
+    return true;
+  });
+}
+
+const arr = value => (Array.isArray(value) ? value : []);
+
+// Merges one org's reads into rows. Each row names its org; ids stay the bus's own.
+function orgRows(org, data, doc, nowMs) {
+  const id = org.org;
+  const projects = arr(data.projects).filter(p => p && typeof p.id === 'string');
+  const byKey = new Map(projects.filter(p => typeof p.repo === 'string').map(p => [p.repo, p]));
+  const byId = new Map(projects.map(p => [p.id, p]));
+  const ref = p => (p ? { id: p.id, key: p.repo ?? null, name: p.name ?? null } : null);
+  const threadProject = new Map(arr(data.threads).map(t => [t.id, byId.get(t.project) ?? null]));
+  const taskRows = arr(data.tasks).filter(t => t && typeof t.task_ref === 'string' && !t.fields?.gone);
+  const bots = new Map(Object.entries(doc?.roles ?? {}).filter(([, r]) => r?.tracker?.botId !== undefined).map(([role, r]) => [r.tracker.botId, role]));
+  const tasks = taskRows.map(t => {
+    const f = t.fields ?? {};
+    return {
+      org: id, ref: t.task_ref, tracker: org.tracker, title: f.title ?? null, done: Boolean(f.done), bucket: f.bucket ?? null,
+      assignees: arr(f.assignees).filter(u => bots.has(u)).map(u => bots.get(u)).sort(), labels: arr(f.labels), priority: t.priority ?? null,
+      requirement: t.requirement ?? null, project: ref(typeof t.project_key === 'string' ? byKey.get(t.project_key) : null), changedAt: t.at ?? null,
+    };
+  });
+  const taskByRef = new Map(tasks.map(t => [t.ref, t]));
+  // A role session's project and task: the task its open decision names, else its first open
+  // assigned task. A role claim itself names no project, so this is inferred, and says so.
+  const roleWork = role => {
+    const open = tasks.filter(t => !t.done && t.assignees.includes(role));
+    return open[0] ?? null;
+  };
+  const sessions = [];
+  for (const c of arr(data.agents)) {
+    if (!c || typeof c.role !== 'string') continue;
+    const asked = arr(c.inputNeeded).map(d => taskByRef.get(d.task_ref)).find(Boolean);
+    const task = asked ?? roleWork(c.role);
+    sessions.push({
+      org: id, kind: 'role', role: c.role, run: c.holder_run ?? null, harness: c.harness ?? null, state: c.state ?? null,
+      since: c.working?.since ?? arr(c.inputNeeded)[0]?.at ?? c.at ?? null, claimedAt: c.at ?? null,
+      messages: c.working?.messages ?? 0, inputNeeded: arr(c.inputNeeded).length, stranded: arr(c.stranded).length,
+      task: task ? { ref: task.ref, title: task.title } : null, project: task?.project ?? null, projectFrom: task ? 'task' : null,
+    });
+  }
+  for (const c of arr(data.claims)) {
+    if (!c || typeof c.thread !== 'string') continue;
+    const p = threadProject.get(c.thread) ?? null;
+    sessions.push({ org: id, kind: 'thread', thread: c.thread, instance: c.instance ?? null, run: c.holder_run ?? null, harness: c.harness ?? null, state: 'live', since: c.at ?? null, claimedAt: c.at ?? null, project: ref(p), projectFrom: p ? 'thread' : null });
+  }
+  const sessionByRole = new Map(sessions.filter(s => s.kind === 'role').map(s => [s.role, s]));
+  const inbox = arr(data.inbox).filter(d => d && typeof d.id === 'string').map(d => {
+    const task = taskByRef.get(d.task_ref) ?? null, s = sessionByRole.get(d.raised_by_role) ?? null;
+    const options = arr(d.options).map(o => ({ key: o.key, text: o.text }));
+    const safe = SHELL_SAFE.test(d.id) && ORG_ID.test(id);
+    return {
+      org: id, id: d.id, question: d.question ?? null, class: d.class ?? null, blocking: Boolean(d.blocking), raisedBy: d.raised_by_role ?? null,
+      taskRef: d.task_ref ?? null, task: task ? { ref: task.ref, title: task.title } : null, project: task?.project ?? null,
+      session: s ? { role: s.role, run: s.run } : null, at: d.at ?? null, options, console: Boolean(d.console),
+      // A shared view mixes organizations, so a copied command always names the org's bus.
+      decide: options.map(o => ({ key: o.key, command: safe && SHELL_SAFE.test(String(o.key)) ? `mosaic decide ${d.id} ${o.key} --org ${id}` : null })),
+    };
+  });
+  const projectRows = projects.map(p => {
+    const mine = s => s.project?.id === p.id;
+    const ps = sessions.filter(mine), needs = inbox.filter(mine), open = tasks.filter(t => !t.done && t.project?.id === p.id);
+    const count = state => ps.filter(s => s.state === state).length;
+    const counts = { working: count('working') + count('live'), waiting: count('waiting'), idle: count('idle') };
+    const entry = typeof p.repo === 'string' ? doc?.projects?.[p.repo] : undefined;
+    return {
+      org: id, id: p.id, key: p.repo ?? null, name: p.name ?? null, status: p.archived ? 'archived' : 'active',
+      state: counts.working ? 'working' : counts.waiting || needs.length ? 'waiting' : counts.idle ? 'idle' : 'none',
+      git: entry ? (entry.git?.mode ?? (entry.remote ? 'remote' : null)) : null,
+      sessions: counts, openTasks: open.length, needsYou: needs.length,
+      lastActivity: latest([p.at, ...tasks.filter(t => t.project?.id === p.id).map(t => t.changedAt), ...needs.map(d => d.at), ...ps.map(s => s.claimedAt)]),
+    };
+  });
+  const decided = arr(data.decisions).filter(d => d?.closed?.op === 'resolved' && typeof d.at === 'string' && typeof d.closed.at === 'string')
+    .map(d => Date.parse(d.closed.at) - Date.parse(d.at)).filter(ms => Number.isFinite(ms) && ms >= 0);
+  const roleCount = state => sessions.filter(s => s.kind === 'role' && s.state === state).length;
+  const metrics = {
+    org: id, needsYou: inbox.length, oldestNeedsYouAt: inbox.map(d => d.at).filter(Boolean).sort()[0] ?? null,
+    sessions: { working: roleCount('working'), waiting: roleCount('waiting'), idle: roleCount('idle'), live: sessions.filter(s => s.kind === 'thread').length },
+    openTasks: tasks.filter(t => !t.done).length,
+    doneThisWeek: tasks.filter(t => t.done && t.changedAt && nowMs - Date.parse(t.changedAt) <= WEEK_MS).length,
+    projects: { active: projectRows.filter(p => p.status === 'active').length, archived: projectRows.filter(p => p.status === 'archived').length },
+    usage: data.usage?.total ?? null, limits: arr(data.limits?.tokens), decisionWaitMedianMs: median(decided),
+  };
+  return { projects: projectRows, sessions, inbox, tasks, metrics };
+}
+
+function sortProjects(rows, { sort, order }) {
+  const activity = (a, b) => (a.lastActivity ?? '').localeCompare(b.lastActivity ?? '');
+  const name = (a, b) => (a.name ?? '').localeCompare(b.name ?? '') || a.id.localeCompare(b.id);
+  const by = {
+    activity: (a, b) => activity(a, b) || name(a, b),
+    name,
+    org: (a, b) => a.org.localeCompare(b.org) || name(a, b),
+    status: (a, b) => PROJECT_STATUSES.indexOf(a.status) - PROJECT_STATUSES.indexOf(b.status) || PROJECT_STATES.indexOf(a.state) - PROJECT_STATES.indexOf(b.state) || name(a, b),
+  }[sort];
+  const sign = order === 'desc' ? -1 : 1;
+  return [...rows].sort((a, b) => sign * by(a, b));
+}
+
+// `organizations.members(session, { timeoutMs })` gives the orgs this session belongs to, each
+// `{ id, doc, status(), options() }` or `{ id, invalid, reason }`. A registry that cannot be read
+// throws, and the HTTP handler answers a fixed message.
+export async function readWorkspace({ organizations, session, query = parseWorkspaceQuery(''), timeoutMs = WORKSPACE_TIMEOUT_MS, now = Date.now, ctx = {} }) {
+  const members = (await organizations.members(session, { timeoutMs })).filter(m => !query.orgs || query.orgs.has(m.id));
+  const needs = [...new Set([...query.sections].flatMap(s => NEEDS[s]))];
+  const read = await Promise.all(members.map(m => readOrg(m, needs, { timeoutMs, now, ctx })));
+  const nowMs = now();
+  const merged = { projects: [], sessions: [], inbox: [], tasks: [], metrics: [] };
+  for (const r of read) {
+    if (r.org.state !== 'ok') continue;
+    const rows = r.rows;
+    for (const key of Object.keys(merged)) merged[key].push(...(key === 'metrics' ? [rows.metrics] : rows[key]));
+  }
+  const body = {
+    readAt: iso(nowMs), pollMs: WORKSPACE_POLL_MS, timeoutMs,
+    summary: { read: read.filter(r => r.org.state === 'ok').length, of: read.length },
+    orgs: read.map(r => r.org),
+  };
+  if (query.sections.has('projects')) {
+    const rows = merged.projects.filter(p => query.status.has(p.status) && (!query.state || query.state.has(p.state)) && (!query.name || (p.name ?? '').toLowerCase().includes(query.name)));
+    body.projects = sortProjects(rows, query);
+  }
+  if (query.sections.has('sessions')) body.sessions = merged.sessions.sort((a, b) => a.org.localeCompare(b.org) || (b.since ?? '').localeCompare(a.since ?? ''));
+  if (query.sections.has('inbox')) body.inbox = merged.inbox.sort((a, b) => (a.class === 'gated' ? 0 : 1) - (b.class === 'gated' ? 0 : 1) || (a.at ?? '').localeCompare(b.at ?? ''));
+  if (query.sections.has('tasks')) {
+    const p = query.project;
+    body.tasks = merged.tasks.filter(t => !p || (t.org === p.org && (t.project?.id === p.key || t.project?.key === p.key)))
+      .sort((a, b) => a.org.localeCompare(b.org) || a.ref.localeCompare(b.ref));
+  }
+  if (query.sections.has('metrics')) {
+    const m = merged.metrics;
+    const sum = f => m.reduce((n, x) => n + f(x), 0);
+    body.metrics = {
+      orgs: m,
+      totals: {
+        needsYou: sum(x => x.needsYou), oldestNeedsYouAt: m.map(x => x.oldestNeedsYouAt).filter(Boolean).sort()[0] ?? null,
+        sessions: { working: sum(x => x.sessions.working), waiting: sum(x => x.sessions.waiting), idle: sum(x => x.sessions.idle), live: sum(x => x.sessions.live) },
+        openTasks: sum(x => x.openTasks), doneThisWeek: sum(x => x.doneThisWeek),
+        projects: { active: sum(x => x.projects.active), archived: sum(x => x.projects.archived) },
+      },
+    };
+  }
+  return body;
+}
+
+const json = (res, status, body) => {
+  res.writeHead(status, { 'content-type': 'application/json; charset=utf-8', 'cache-control': 'no-store' });
+  res.end(JSON.stringify(body));
+};
+
+// GET /api/workspace. The hook fence has required a signed-in session on the page's own name.
+// Only the owner reads it: a granted user or the tester sees no organizations today, so they get
+// owner-only here too, and nothing about any org.
+export async function workspaceHTTP(req, res, { session = null, owner = false, organizations = null, search = '', timeoutMs = WORKSPACE_TIMEOUT_MS, now = Date.now, ctx = {}, log = () => {} }) {
+  if (req.method !== 'GET') return json(res, 405, { error: 'method not allowed' });
+  if (!organizations || typeof organizations.members !== 'function') return json(res, 404, { error: 'org-unavailable' });
+  if (!owner || !session) return json(res, 403, { error: 'owner-only', message: 'the cross-organization view is the owner\'s' });
+  let query;
+  try { query = parseWorkspaceQuery(search); }
+  catch (e) { if (e instanceof WorkspaceQueryError) return json(res, 400, { error: 'invalid-request', message: e.message }); throw e; }
+  let body;
+  try { body = await readWorkspace({ organizations, session, query, timeoutMs, now, ctx }); }
+  catch { log('workspace: organization registry could not be read'); return json(res, 503, { error: 'org-unavailable', message: 'Organization registry could not be read' }); }
+  return json(res, 200, body);
+}
@@ -0,0 +1,114 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { mkdtemp, writeFile, readFile, rm } from 'node:fs/promises';
+import { join } from 'node:path';
+import { tmpdir } from 'node:os';
+import { setTimeout as delay } from 'node:timers/promises';
+import { createServer } from 'node:net';
+import * as orgBus from '../../cli/src/org-bus.mjs';
+import { busCaller } from '../src/bus.mjs';
+import { consoleBus } from '../src/console-bus.mjs';
+import { organizationConsole } from '../src/organizations.mjs';
+import { readWorkspace, workspaceHTTP, parseWorkspaceQuery } from '../src/workspace-read.mjs';
+
+const session = { provider: 'local-dev', iss: 'local-dev', sub: 'local-dev-owner' };
+const goodOptions = overrides => ({
+  bus: { tasks: async () => [], agents: async () => [], inbox: async () => [], 'thread.claims': async () => [], usage: async () => ({}), limits: async () => ({}), decisions: async () => [], ...overrides?.bus },
+  chat: { projects: async () => [{ id: 'p', name: 'Healthy' }], threads: async () => [], ...overrides?.chat },
+});
+const member = (id, overrides) => ({ id, doc: {}, status: async () => ({ healthy: true }), options: () => goodOptions(overrides) });
+const orgs = (...members) => ({ members: async () => members });
+const response = () => ({ writeHead(status) { this.status = status; }, end(body) { this.body = JSON.parse(body); } });
+
+for (const [name, overrides] of [
+  ['null thread', { chat: { threads: async () => [null] } }],
+  ['null inbox option', { bus: { inbox: async () => [{ id: 'd', options: [null] }] } }],
+  ['invalid project name', { chat: { projects: async () => [{ id: 'bad', name: 42 }] } }],
+  ['non-array tasks', { bus: { tasks: async () => ({ tasks: [] }) } }],
+  ['invalid usage total', { bus: { usage: async () => ({ total: 42 }) } }],
+]) {
+  test(`malformed ${name} is isolated from a healthy organization`, async () => {
+    const res = response();
+    await workspaceHTTP({ method: 'GET' }, res, { organizations: orgs(member('good'), member('bad', overrides)), session, owner: true });
+    assert.equal(res.status, 200);
+    assert.deepEqual(res.body.projects.map(p => p.org), ['good']);
+    assert.deepEqual(res.body.summary, { read: 1, of: 2 });
+    const bad = res.body.orgs.find(o => o.org === 'bad');
+    assert.equal(bad.state, 'invalid');
+    assert.equal(bad.error, 'invalid-response');
+    assert.ok(Number.isFinite(Date.parse(bad.at)));
+  });
+}
+
+test('options construction failure is isolated from a healthy organization', async () => {
+  const bad = { ...member('bad'), options() { throw new Error('private detail'); } };
+  const res = response();
+  await workspaceHTTP({ method: 'GET' }, res, { organizations: orgs(member('good'), bad), session, owner: true });
+  assert.equal(res.status, 200);
+  assert.deepEqual(res.body.projects.map(p => p.org), ['good']);
+  assert.deepEqual(res.body.summary, { read: 1, of: 2 });
+  assert.equal(res.body.orgs[1].state, 'invalid');
+  assert.equal(res.body.orgs[1].error, 'invalid-response');
+  assert.ok(Number.isFinite(Date.parse(res.body.orgs[1].at)));
+});
+
+for (const [name, statusDelay, pluginDelay] of [['in-flight child', 0, 100], ['late channel continuation', 220, 300]]) {
+  test(`deadline cancels ${name} and prevents any later child`, async t => {
+    const dir = await mkdtemp(join(tmpdir(), 'ws-'));
+    t.after(() => rm(dir, { recursive: true, force: true }));
+    const cli = join(dir, 'cli.mjs'), log = join(dir, 'log');
+    await writeFile(cli, `import {appendFileSync} from 'node:fs';let input='';process.stdin.on('data',x=>input+=x);process.stdin.on('end',()=>{const q=JSON.parse(input);appendFileSync(${JSON.stringify(log)},JSON.stringify({pid:process.pid,verb:q.verb})+'\\n');if(q.verb==='plugins')setTimeout(()=>process.stdout.write(JSON.stringify({plugins:{channel:['webui']}})),${pluginDelay});else if(q.verb==='project.list')setInterval(()=>{},1000);else process.stdout.write('[]');});`);
+    const timeoutMs = 500;
+    const organizations = organizationConsole({ ctx: {}, listOrgs: async () => ['good', 'slow'].map(id => ({ id, state: 'active' })),
+      showOrg: async () => ({ doc: {} }), resolveOrg: async (_, id) => ({ id, state: 'active', root: dir }), orgPaths: () => ({ socket: join(dir, 'unused.sock') }),
+      busStatus: async (_, id) => { if (id === 'slow') await delay(statusDelay); return { healthy: true }; },
+      options: ({ id, ...bound }) => id === 'good' ? goodOptions() : consoleBus(busCaller({ dataRoot: dir, socket: bound.paths.socket, business: id, cli, timeoutMs, ...bound })) });
+    const body = await readWorkspace({ organizations, session, timeoutMs, query: parseWorkspaceQuery('sections=tasks') });
+    assert.equal(body.orgs.find(o => o.org === 'slow').state, 'timeout');
+    assert.deepEqual(body.summary, { read: 1, of: 2 });
+    const rows = async () => (await readFile(log, 'utf8')).trim().split('\n').map(JSON.parse);
+    const atReturn = await rows();
+    if (!statusDelay) {
+      await delay(30);
+      for (const { pid } of atReturn) assert.throws(() => process.kill(pid, 0), { code: 'ESRCH' }, `transport ${pid} still alive`);
+    }
+    await delay(350);
+    const later = await rows();
+    assert.deepEqual(later, atReturn, 'no transport starts after timeout');
+    assert.ok(atReturn.some(r => r.verb === (statusDelay ? 'plugins' : 'project.list')));
+    for (const { pid } of later) assert.throws(() => process.kill(pid, 0), { code: 'ESRCH' }, `transport ${pid} still alive`);
+  });
+}
+
+// The real status probe must release its socket as soon as its org deadline expires.
+test('status probe closes its in-flight socket on cancellation', async t => {
+  const dir = await mkdtemp(join(tmpdir(), 'sock-')), path = join(dir, 's');
+  const server = createServer(socket => { socket.on('data', () => {}); });
+  await new Promise(resolve => server.listen(path, resolve));
+  t.after(async () => { await new Promise(resolve => server.close(resolve)); await rm(dir, { recursive: true, force: true }); });
+  const controller = new AbortController();
+  assert.equal(typeof orgBus.probeBusSocket, 'function');
+  const connected = new Promise(resolve => server.once('connection', socket => socket.once('close', resolve)));
+  const result = orgBus.probeBusSocket(path, { signal: controller.signal, deadline: Date.now() + 100 });
+  await delay(30);
+  controller.abort();
+  assert.equal(await result, false);
+  await Promise.race([connected, delay(250).then(() => { throw new Error('status socket still open'); })]);
+});
+
+test('workspace deadline reaches the organization status socket', async t => {
+  const dir = await mkdtemp(join(tmpdir(), 'sock-')), path = join(dir, 's');
+  let closed;
+  const socketClosed = new Promise(resolve => { closed = resolve; });
+  const server = createServer(socket => { socket.on('data', () => {}); socket.once('close', closed); });
+  await new Promise(resolve => server.listen(path, resolve));
+  t.after(async () => { await new Promise(resolve => server.close(resolve)); await rm(dir, { recursive: true, force: true }); });
+  const organizations = organizationConsole({ ctx: {}, listOrgs: async () => ['good', 'slow'].map(id => ({ id, state: 'active' })),
+    showOrg: async () => ({ doc: {} }), resolveOrg: async (_, id) => ({ id, state: 'active', root: dir }), orgPaths: () => ({ socket: path }),
+    busStatus: async (_, id, bound) => id === 'good' ? { healthy: true } : { healthy: await orgBus.probeBusSocket(path, bound) },
+    options: () => goodOptions() });
+  const body = await readWorkspace({ organizations, session, timeoutMs: 150 });
+  assert.equal(body.orgs.find(o => o.org === 'slow').state, 'timeout');
+  assert.deepEqual(body.summary, { read: 1, of: 2 });
+  await Promise.race([socketClosed, delay(250).then(() => { throw new Error('status socket still open'); })]);
+});
@@ -0,0 +1,264 @@
+// U1 (#1873, PRD 1.20 REQ-WS-1..8): the cross-organization read behind GET /api/workspace.
+// Merge, membership, partial failure, timeout, sort and filter, the copied decide command, the
+// route through startServer, and the assistant-read stop. Every bus here is a fake options
+// object or a real org registry in this test's own scratch; no test reaches a live bus.
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import * as fs from 'node:fs/promises';
+import { readFileSync } from 'node:fs';
+import { join } from 'node:path';
+import { tmpdir } from 'node:os';
+import { createOrg, showOrg, templateRender } from '../../organization/src/org-service.mjs';
+import { listOrgs, resolveOrg } from '../../organization/src/org-registry.mjs';
+import { organizationConsole } from '../src/organizations.mjs';
+import { startServer } from '../src/serve.mjs';
+import { createDevOwner } from '../src/dev-owner.mjs';
+import { parseWorkspaceQuery, readWorkspace, workspaceHTTP, WorkspaceQueryError, WORKSPACE_POLL_MS } from '../src/workspace-read.mjs';
+import * as broker from '../../bus/src/broker.mjs';
+
+const principal = { provider: 'local-dev', iss: 'local-dev', sub: 'local-dev-owner' };
+const NOW = Date.parse('2026-11-09T13:00:00.000Z');
+const now = () => NOW;
+const never = () => new Promise(() => {});
+
+// One org's bus as the org pages see it: options().bus and options().chat. `over` replaces reads.
+function options(data, over = {}) {
+  const value = name => (over[name] ? over[name]() : Promise.resolve(data[name] ?? (['usage', 'limits'].includes(name) ? {} : [])));
+  return {
+    bus: { inbox: () => value('inbox'), agents: () => value('agents'), 'thread.claims': () => value('claims'), tasks: () => value('tasks'),
+      usage: () => value('usage'), limits: () => value('limits'), decisions: () => value('decisions') },
+    chat: { threads: () => value('threads'), projects: () => value('projects') },
+  };
+}
+const healthy = async () => ({ healthy: true, pid: 4242, boot: null });
+function member(id, data, { status = healthy, over = {}, doc = {} } = {}) {
+  return { id, doc: { appearance: { theme: `${id}-theme` }, ...doc }, status, options: () => options(data, over) };
+}
+const organizationsOf = (...members) => ({ members: async () => members, list: async () => [], resolve: async () => null });
+
+const ACME = {
+  projects: [
+    { id: 'p-site', repo: 'site', name: 'Website', archived: false, at: '2026-11-09T10:00:00.000Z' },
+    { id: 'p-old', repo: 'old', name: 'Old brochure', archived: true, at: '2026-10-01T00:00:00.000Z' },
+  ],
+  tasks: [
+    { task_ref: 'vk:1', project_key: 'site', priority: 2, at: '2026-11-09T11:00:00.000Z', fields: { title: 'Hero copy', done: false, assignees: [7, 99], bucket: 'Doing', labels: ['web'] } },
+    { task_ref: 'vk:2', project_key: 'site', at: '2026-11-08T00:00:00.000Z', fields: { title: 'Logo', done: true } },
+    { task_ref: 'vk:3', project_key: 'site', at: '2026-11-08T00:00:00.000Z', fields: { title: 'Removed', gone: true } },
+  ],
+  agents: [{ role: 'coder', holder_run: 'run-1', harness: 'claude', state: 'waiting', at: '2026-11-09T09:00:00.000Z', inputNeeded: [{ task_ref: 'vk:1', at: '2026-11-09T12:00:00.000Z' }], stranded: [] }],
+  claims: [{ thread: 't-1', instance: 'assistant', holder_run: 'run-2', harness: 'claude', at: '2026-11-09T08:00:00.000Z' }],
+  threads: [{ id: 't-1', project: 'p-site' }],
+  inbox: [{ id: 'd1234567', question: 'Ship the hero?', class: 'gated', blocking: true, raised_by_role: 'coder', task_ref: 'vk:1', at: '2026-11-09T12:00:00.000Z', options: [{ key: 'yes', text: 'Yes' }, { key: 'no', text: 'No' }] }],
+  usage: { total: { tokens: 1200 } },
+  limits: { tokens: [{ scope: 'org', used: 1200, cap: 5000 }] },
+  decisions: [{ at: '2026-11-09T00:00:00.000Z', closed: { op: 'resolved', at: '2026-11-09T00:10:00.000Z' } }],
+};
+const ACME_DOC = { tracker: { kind: 'vikunja' }, roles: { coder: { tracker: { botId: 7 } }, assistant: {} } };
+const BETA = {
+  projects: [{ id: 'p-shop', repo: 'shop', name: 'Shop', archived: false, at: '2026-11-07T00:00:00.000Z' }],
+  tasks: [{ task_ref: 'local:1', project_key: 'shop', at: '2026-11-07T00:00:00.000Z', fields: { title: 'Price list', done: false } }],
+};
+
+test('merge: every item from two buses carries its org, and the snapshot names both orgs', async () => {
+  const body = await readWorkspace({ organizations: organizationsOf(member('acme', ACME, { doc: ACME_DOC }), member('beta', BETA)), session: principal, now });
+  assert.equal(body.pollMs, WORKSPACE_POLL_MS);
+  assert.deepEqual(body.summary, { read: 2, of: 2 });
+  assert.deepEqual(body.orgs.map(o => [o.org, o.state, o.tracker, o.theme]), [['acme', 'ok', 'vikunja', 'acme-theme'], ['beta', 'ok', 'built-in', 'beta-theme']]);
+  assert.deepEqual(body.orgs[0].roles, ['assistant', 'coder']);
+  for (const key of ['projects', 'sessions', 'inbox', 'tasks']) for (const row of body[key]) assert.ok(['acme', 'beta'].includes(row.org), `${key} row without org`);
+  assert.deepEqual(body.metrics.orgs.map(m => m.org), ['acme', 'beta']);
+  // Archived projects are hidden by default; the default sort is newest activity first.
+  assert.deepEqual(body.projects.map(p => `${p.org}/${p.key}`), ['acme/site', 'beta/shop']);
+  const site = body.projects[0];
+  assert.deepEqual({ ...site }, { org: 'acme', id: 'p-site', key: 'site', name: 'Website', status: 'active', state: 'working', git: null,
+    sessions: { working: 1, waiting: 1, idle: 0 }, openTasks: 1, needsYou: 1, lastActivity: '2026-11-09T12:00:00.000Z' });
+  const role = body.sessions.find(s => s.kind === 'role'), thread = body.sessions.find(s => s.kind === 'thread');
+  assert.equal(role.org, 'acme'); assert.equal(role.role, 'coder'); assert.equal(role.state, 'waiting'); assert.equal(role.inputNeeded, 1);
+  assert.deepEqual(role.task, { ref: 'vk:1', title: 'Hero copy' }); assert.equal(role.project.key, 'site'); assert.equal(role.projectFrom, 'task');
+  assert.equal(thread.thread, 't-1'); assert.equal(thread.project.key, 'site'); assert.equal(thread.projectFrom, 'thread');
+  const ask = body.inbox[0];
+  assert.equal(ask.org, 'acme'); assert.equal(ask.raisedBy, 'coder'); assert.deepEqual(ask.session, { role: 'coder', run: 'run-1' }); assert.equal(ask.project.key, 'site');
+  // The gone task is dropped; only bot ids from the org file become role names.
+  assert.deepEqual(body.tasks.map(t => `${t.org}/${t.ref}`), ['acme/vk:1', 'acme/vk:2', 'beta/local:1']);
+  assert.deepEqual(body.tasks[0].assignees, ['coder']); assert.equal(body.tasks[0].bucket, 'Doing'); assert.equal(body.tasks[2].tracker, 'built-in');
+  assert.deepEqual(body.metrics.orgs[0], { org: 'acme', needsYou: 1, oldestNeedsYouAt: '2026-11-09T12:00:00.000Z', sessions: { working: 0, waiting: 1, idle: 0, live: 1 },
+    openTasks: 1, doneThisWeek: 1, projects: { active: 1, archived: 1 }, usage: { tokens: 1200 }, limits: [{ scope: 'org', used: 1200, cap: 5000 }], decisionWaitMedianMs: 600000 });
+  assert.deepEqual(body.metrics.totals, { needsYou: 1, oldestNeedsYouAt: '2026-11-09T12:00:00.000Z', sessions: { working: 0, waiting: 1, idle: 0, live: 1 }, openTasks: 2, doneThisWeek: 1, projects: { active: 2, archived: 1 } });
+});
+
+test('sections: only the asked sections are read and returned', async () => {
+  const asked = [];
+  const tracked = member('acme', ACME, { over: Object.fromEntries(['inbox', 'agents', 'claims', 'threads', 'tasks', 'projects', 'usage', 'limits', 'decisions'].map(n => [n, () => { asked.push(n); return Promise.resolve(ACME[n] ?? (['usage', 'limits'].includes(n) ? {} : [])); }])) });
+  const body = await readWorkspace({ organizations: organizationsOf(tracked), session: principal, query: parseWorkspaceQuery('sections=tasks'), now });
+  assert.deepEqual(Object.keys(body).filter(k => ['projects', 'sessions', 'inbox', 'tasks', 'metrics'].includes(k)), ['tasks']);
+  assert.deepEqual(asked.sort(), ['inbox', 'projects', 'tasks']);
+});
+
+test('membership: a foreign org is never read or named; a broken own org shows as invalid; options get the timeout', async t => {
+  const root = await fs.mkdtemp(join(tmpdir(), 'wsr-'));
+  t.after(() => fs.rm(root, { recursive: true, force: true }));
+  const ctx = { configDir: join(root, 'config'), dataRoot: join(root, 'data'), instance: 'test', principal };
+  await fs.mkdir(ctx.configDir, { mode: 0o700 }); await fs.mkdir(ctx.dataRoot, { mode: 0o700 });
+  for (const id of ['alpha', 'beta', 'private-tenant']) await createOrg(ctx, id, await templateRender(id));
+  await fs.writeFile(join(ctx.dataRoot, 'org-runtime', 'private-tenant', 'owner.json'), JSON.stringify({ ...principal, sub: 'different-owner' }));
+  const statusAsked = [], optionsAsked = [];
+  const orgs = organizationConsole({ ctx, listOrgs, showOrg, resolveOrg, orgPaths: () => ({}),
+    busStatus: async (_ctx, id) => { statusAsked.push(id); return id === 'beta' ? { healthy: false, pid: null, boot: { ok: false, at: '2026-11-09T12:59:00.000Z', reason: `config missing at ${ctx.dataRoot}/org-runtime/beta/x.json` } } : { healthy: true, pid: 7 }; },
+    options: o => { optionsAsked.push({ id: o.id, timeoutMs: o.timeoutMs }); return options(o.id === 'alpha' ? BETA : {}); } });
+  const body = await readWorkspace({ organizations: orgs, session: principal, timeoutMs: 1500, now, ctx });
+  assert.deepEqual(body.orgs.map(o => [o.org, o.state]), [['alpha', 'ok'], ['beta', 'down']]);
+  assert.equal(JSON.stringify(body).includes('private-tenant'), false);
+  assert.deepEqual(statusAsked.sort(), ['alpha', 'beta']);
+  assert.deepEqual(optionsAsked, [{ id: 'alpha', timeoutMs: 1500 }]);
+  // The boot refusal is shown with the data root made relative.
+  assert.equal(body.orgs[1].reason, 'the bus refused to start: config missing at <data root>/org-runtime/beta/x.json');
+  assert.equal(JSON.stringify(body).includes(root), false);
+  // A different principal sees none of these orgs.
+  const outsider = await readWorkspace({ organizations: orgs, session: { ...principal, sub: 'outsider' }, now, ctx });
+  assert.deepEqual(outsider.orgs, []);
+  // The owner of a broken org sees it as invalid, with no host path.
+  await fs.unlink(join(ctx.configDir, 'businesses', 'alpha.json'));
+  const broken = await readWorkspace({ organizations: orgs, session: principal, now, ctx });
+  assert.equal(broken.orgs[0].org, 'alpha'); assert.equal(broken.orgs[0].state, 'invalid');
+  assert.equal(broken.orgs[0].reason.includes(ctx.configDir), false);
+  assert.deepEqual(broken.summary, { read: 0, of: 2 });
+});
+
+test('partial failure: down, starting and a status that throws each get a state and a time; the others return', async () => {
+  const ctx = { dataRoot: '/srv/fake-data', configDir: '/srv/fake-config' };
+  const body = await readWorkspace({ now, ctx, session: principal, organizations: organizationsOf(
+    member('acme', ACME, { doc: ACME_DOC }),
+    member('down', BETA, { status: async () => ({ healthy: false, pid: null, boot: { ok: true, at: '2026-11-09T12:00:00.000Z' } }) }),
+    member('starting', BETA, { status: async () => ({ healthy: false, pid: 991, boot: null }) }),
+    member('stale', BETA, { status: async () => { throw new Error('host state names /srv/fake-data/org-runtime/stale/bus-host and /etc/secret-place'); } }),
+    member('reads-fail', BETA, { over: { tasks: () => Promise.reject(Object.assign(new Error('nope'), { code: 'bus-unavailable' })), projects: () => Promise.reject(new Error('raw text /etc/x')) } }),
+  ) });
+  const byOrg = Object.fromEntries(body.orgs.map(o => [o.org, o]));
+  assert.equal(byOrg.acme.state, 'ok');
+  assert.equal(byOrg.down.state, 'down'); assert.equal(byOrg.down.reason, 'the bus is not running');
+  assert.equal(byOrg.starting.state, 'starting'); assert.equal(byOrg.starting.reason, 'the bus host is running but does not answer yet');
+  assert.equal(byOrg.stale.state, 'down');
+  assert.equal(byOrg.stale.reason, 'host state names <data root>/org-runtime/stale/bus-host and <host path>');
+  // A read that fails inside an answering bus is that read's error code, never its message.
+  assert.equal(byOrg['reads-fail'].state, 'ok');
+  assert.deepEqual(byOrg['reads-fail'].errors, { tasks: 'bus-unavailable', projects: 'read-failed' });
+  for (const o of body.orgs) { assert.equal(o.at, new Date(NOW).toISOString()); assert.equal(typeof o.readMs, 'number'); }
+  assert.deepEqual(body.summary, { read: 2, of: 5 });
+  assert.ok(body.projects.every(p => p.org === 'acme'));
+});
+
+test('timeout: a bus that never answers, or whose state is never read, is marked timeout within the bound', async () => {
+  const started = Date.now();
+  const body = await readWorkspace({ timeoutMs: 150, session: principal, organizations: organizationsOf(
+    member('acme', ACME, { doc: ACME_DOC }),
+    member('slow', BETA, { over: { tasks: never } }),
+    member('stuck', BETA, { status: never }),
+  ) });
+  const elapsed = Date.now() - started;
+  assert.ok(elapsed < 1500, `took ${elapsed} ms`);
+  const byOrg = Object.fromEntries(body.orgs.map(o => [o.org, o]));
+  assert.equal(byOrg.acme.state, 'ok');
+  assert.equal(byOrg.slow.state, 'timeout'); assert.equal(byOrg.slow.reason, 'the bus did not answer within 150 ms');
+  assert.equal(byOrg.stuck.state, 'timeout'); assert.equal(byOrg.stuck.reason, 'the bus state was not read within 150 ms');
+  assert.equal(body.timeoutMs, 150);
+  assert.ok(body.tasks.every(t => t.org === 'acme'));
+});
+
+test('query: strict keys and values', () => {
+  const q = parseWorkspaceQuery('?sections=projects,tasks&org=acme,beta&status=active,archived&state=working&name=Web&sort=name&project=acme:site');
+  assert.deepEqual([...q.sections], ['projects', 'tasks']); assert.deepEqual([...q.orgs], ['acme', 'beta']);
+  assert.deepEqual([...q.status], ['active', 'archived']); assert.deepEqual([...q.state], ['working']);
+  assert.equal(q.name, 'web'); assert.equal(q.sort, 'name'); assert.equal(q.order, 'asc'); assert.deepEqual(q.project, { org: 'acme', key: 'site' });
+  assert.equal(parseWorkspaceQuery('').order, 'desc');
+  for (const bad of ['secton=projects', 'org=acme&org=beta', 'sections=', 'sections=chat', 'org=Bad Org', 'status=paused', 'state=busy', `name=${'x'.repeat(201)}`, 'name=%20', 'sort=size', 'order=up', 'project=acme', 'project=acme:a/b'])
+    assert.throws(() => parseWorkspaceQuery(bad), WorkspaceQueryError, bad);
+});
+
+test('sort and filter: projects by org, status, state, name and activity; tasks by org and project', async () => {
+  const organizations = organizationsOf(member('acme', ACME, { doc: ACME_DOC }), member('beta', BETA));
+  const read = search => readWorkspace({ organizations, session: principal, now, query: parseWorkspaceQuery(search) });
+  const keys = rows => rows.map(p => `${p.org}/${p.key}`);
+  assert.deepEqual(keys((await read('status=active,archived')).projects), ['acme/site', 'beta/shop', 'acme/old']);
+  assert.deepEqual(keys((await read('status=active,archived&sort=activity&order=asc')).projects), ['acme/old', 'beta/shop', 'acme/site']);
+  assert.deepEqual(keys((await read('status=active,archived&sort=name')).projects), ['acme/old', 'beta/shop', 'acme/site']);
+  assert.deepEqual(keys((await read('status=active,archived&sort=org&order=desc')).projects), ['beta/shop', 'acme/site', 'acme/old']);
+  assert.deepEqual(keys((await read('status=active,archived&sort=status')).projects), ['acme/site', 'beta/shop', 'acme/old']);
+  assert.deepEqual(keys((await read('status=archived')).projects), ['acme/old']);
+  assert.deepEqual(keys((await read('state=none')).projects), ['beta/shop']);
+  assert.deepEqual(keys((await read('name=SHO')).projects), ['beta/shop']);
+  const onlyBeta = await read('org=beta');
+  assert.deepEqual(onlyBeta.orgs.map(o => o.org), ['beta']); assert.deepEqual(keys(onlyBeta.projects), ['beta/shop']);
+  // An org filter naming an org the viewer is not in returns nothing, not an error.
+  assert.deepEqual((await read('org=nobody')).orgs, []);
+  assert.deepEqual((await read('project=acme:site')).tasks.map(t => t.ref), ['vk:1', 'vk:2']);
+  assert.deepEqual((await read('project=acme:p-site')).tasks.map(t => t.ref), ['vk:1', 'vk:2']);
+  assert.deepEqual((await read('project=beta:site')).tasks, []);
+});
+
+test('decide: a copied command names the org; an unsafe id or key gets none', async () => {
+  const data = { ...ACME, inbox: [...ACME.inbox, { id: 'd99 ; rm -rf ~', question: 'x', options: [{ key: 'ok', text: 'ok' }] }, { id: 'e7654321', question: 'y', options: [{ key: 'a b', text: 'a b' }] }] };
+  const body = await readWorkspace({ organizations: organizationsOf(member('acme', data, { doc: ACME_DOC })), session: principal, now, query: parseWorkspaceQuery('sections=inbox') });
+  const byId = Object.fromEntries(body.inbox.map(d => [d.id, d]));
+  assert.deepEqual(byId.d1234567.decide, [{ key: 'yes', command: 'mosaic decide d1234567 yes --org acme' }, { key: 'no', command: 'mosaic decide d1234567 no --org acme' }]);
+  assert.deepEqual(byId['d99 ; rm -rf ~'].decide, [{ key: 'ok', command: null }]);
+  assert.deepEqual(byId.e7654321.decide, [{ key: 'a b', command: null }]);
+  // Gated first, then oldest first.
+  assert.equal(body.inbox[0].id, 'd1234567');
+});
+
+function fakeRes() {
+  return { status: null, body: null, writeHead(status) { this.status = status; }, end(text) { this.body = JSON.parse(text); } };
+}
+test('handler: non-GET, no registry, non-owner, bad query and an unreadable registry', async () => {
+  const organizations = organizationsOf(member('acme', ACME));
+  const run = async (opts, method = 'GET') => { const res = fakeRes(); await workspaceHTTP({ method }, res, { session: principal, owner: true, organizations, ...opts }); return res; };
+  assert.equal((await run({}, 'POST')).status, 405);
+  assert.deepEqual((await run({ organizations: null })).body, { error: 'org-unavailable' });
+  // A granted user or the tester reaches the hook with owner false and no owner session.
+  for (const who of [{ owner: false }, { session: null }]) {
+    const res = await run(who);
+    assert.equal(res.status, 403); assert.deepEqual(res.body, { error: 'owner-only', message: 'the cross-organization view is the owner\'s' });
+  }
+  const bad = await run({ search: '?org=acme&org=acme' });
+  assert.equal(bad.status, 400); assert.equal(bad.body.error, 'invalid-request');
+  const logged = [];
+  const down = await run({ organizations: { members: async () => { throw new Error('/srv/x/org-runtime.json: Unexpected token'); } }, log: line => logged.push(line) });
+  assert.equal(down.status, 503); assert.deepEqual(down.body, { error: 'org-unavailable', message: 'Organization registry could not be read' });
+  assert.deepEqual(logged, ['workspace: organization registry could not be read']);
+});
+
+async function serve(t, organizations, sso = createDevOwner()) {
+  const s = await startServer({ port: 0, board: 'http://127.0.0.1:9', sso, organizations, log: () => {}, workspaceTimeoutMs: 200 });
+  t.after(() => new Promise(r => { s.close(r); s.closeIdleConnections(); }));
+  return `http://127.0.0.1:${s.address().port}`;
+}
+test('route: the dev owner reads GET /api/workspace; a granted user gets owner-only; the timeout option applies', async t => {
+  const seen = [];
+  const organizations = { list: async () => [], resolve: async () => null, members: async (session, opts) => { seen.push({ sub: session.sub, timeoutMs: opts.timeoutMs }); return [member('acme', ACME, { doc: ACME_DOC }), member('slow', BETA, { status: never })]; } };
+  const base = await serve(t, organizations);
+  const response = await fetch(`${base}/api/workspace?sections=projects,metrics`), body = await response.json();
+  assert.equal(response.status, 200); assert.equal(response.headers.get('cache-control'), 'no-store');
+  assert.deepEqual(body.orgs.map(o => [o.org, o.state]), [['acme', 'ok'], ['slow', 'timeout']]);
+  assert.equal(body.timeoutMs, 200); assert.deepEqual(seen, [{ sub: 'local-dev-owner', timeoutMs: 200 }]);
+  assert.equal((await fetch(`${base}/api/workspace?bogus=1`)).status, 400);
+  // POST has no route here: with no Origin the dev fence refuses it, and with the page's Origin the
+  // organizations fence answers as for any unknown /api path.
+  assert.equal((await fetch(`${base}/api/workspace`, { method: 'POST' })).status, 403);
+  const post = await fetch(`${base}/api/workspace`, { method: 'POST', headers: { origin: base, 'content-type': 'application/json' }, body: '{}' });
+  assert.equal(post.status, 404); assert.deepEqual(await post.json(), { error: 'org-unavailable' });
+  // A granted user's session (session.user set) is fenced before any org is read.
+  const granted = { ...createDevOwner(), session: () => ({ ...principal, sub: 'alice-sub', user: 'alice', name: 'Alice' }) };
+  const userBase = await serve(t, organizations, granted);
+  const refused = await fetch(`${userBase}/api/workspace`);
+  assert.equal(refused.status, 403); assert.equal((await refused.json()).error, 'owner-only');
+  assert.equal(seen.length, 1);
+});
+
+test('assistant read is designed, not built: no workspace broker verb, assistant authority unchanged', () => {
+  const role = JSON.parse(readFileSync(new URL('../../../roles/assistant.json', import.meta.url), 'utf8'));
+  assert.deepEqual(role.authority, { withinRole: ['message.send', 'record.write'], crossRole: [] });
+  const verbs = new Set(Object.values(broker).filter(Array.isArray).flat().filter(v => typeof v === 'string'));
+  assert.ok(verbs.has('inbox'), 'the verb lists were read');
+  assert.deepEqual([...verbs].filter(v => /^(workspace|orgs?)\b/.test(v)), []);
+});
@@ -421,7 +421,7 @@ plugin_checks() {
 # Row 181: the tables a bus writer fills without an event in the same transaction, in schema
 # order. A restore drops their rows after STAMP as it drops events, so the guard counts them too.
 # BUILD.md for row 181 names each writer; the T46 guard classifies every table in the schema.
-COUNTED="role_claims thread_claims decision_events messages deliveries task_snapshots projects project_archives threads sessions session_defaults thread_opens thread_shares instance_names usage_records session_ops message_cancels request_events request_effects request_snapshots request_snapshot_events request_project_events"
+COUNTED="role_claims thread_claims decision_events messages deliveries task_snapshots projects project_archives threads sessions session_defaults thread_opens thread_shares instance_names usage_records session_ops message_cancels request_events request_effects request_snapshots request_snapshot_events request_project_events project_system_types"

 STORE_JS='
 const {DatabaseSync}=require("node:sqlite");const {pathToFileURL}=require("node:url");
Author	SHA1	Message	Date
jason.woltje	2c6556ab1e	fix(sys1): count project system types in the restore guard and admit the CLI verbs Sol review sys1-review-r1 (changes 3): - P1: project_system_types joins stack-release.sh COUNTED and the T45 LISTED pin; the post-backup refusal and in-run recount tests now cover it. - P2: the CLI channel admits project.system-types and project.system-types.set; a new test drives both through run() and the real channel module (1/1 red without the fix). - P2: the #811 migration-reader pin moves to 19 steps ending 3t-3u.	2026-11-09 18:46:36 -06:00
jason.woltje	f4bfd3a744	feat(plugins,organization): system types as a plug-in kind (REQ-SYS-1, #1873 ) Adds the system-type kind with five modules (coding, creative-writing, marketing, montage, business-management), an org-level enabled list validated fail-closed, project selections limited to the org's list, read verbs, and bus migration 3t-3u. REQ-SYS-2 toolsets are designed and deferred: they need a role authority contract.	2026-11-09 18:46:35 -06:00
jason.woltje	d35447005a	Isolate invalid workspace reads and cancel timed-out org work	2026-11-09 18:22:27 -06:00
jason.woltje	2109458b3f	feat(webui,cli): U1 cross-organization read model and console verbs (#1873 ) GET /api/workspace on the dev-local-owner Console: one snapshot of projects, sessions, inbox, tasks and per-org metrics across every organization the owner belongs to. Membership reuses the org list's admission (organizations.members); each org is read over the same per-org options the org pages use, with one deadline per org (4000 ms) and a state (ok, down, starting, timeout, invalid) with a time. Every row carries its org id; decide commands carry --org. Granted users and the tester get 403 owner-only. Polling at 10 s, no push. mosaic console restart and mosaic org reload <id> call the Console's F3 routes (POST /api/console/restart, POST /api/orgs/<id>/restart/bus) so gating, proof and trail are the Console's own; both refuse inside an agent run first. The cross-org assistant read is designed and stopped: it needs a new broker read verb or role authority.	2026-11-09 17:54:06 -06:00
jason.woltje	1616d1dd6f	docs: BUILD-LOG and session line for PRD 1.20 and defect l (#1873 , #1886 )	2026-11-09 17:38:26 -06:00