fix(mosaic): de-flake mutator-class lease gate TTL-expiry test (#861)

Bound broker reply deadlines (separate read/lock/send budgets, BROKER_BUSY-before-mutation, fresh post-handle send budget → closes drop-after-commit window); fail-close empty/truncated read → GATE_UNAVAILABLE deny. De-flakes the 1917 acceptance surface. terra CODE APPROVE (pi) + Opus SECREV APPROVED (claude) — RoR comment 18143. Promote-lease-lost-ACK residual = fail-safe two-generals observability-gap, routed to WI-3 D2-v5 as named-disclosed-bounded-residual (route i). Gate-16 3-principal author=gpt-sol.

closes #838

.prettierignore

@@ -7,3 +7,4 @@ pnpm-lock.yaml
 .claude/
 docs/tess/TASKS.md
 docs/scratchpads/
+packages/mosaic/src/fleet/testdata/documentation-publication-v1/inline-migration-v1.json

README.md

@@ -97,7 +97,10 @@ mosaic config path           # Print config file path
 ```bash
 mosaic doctor                # Health audit — detect drift and missing files
 mosaic sync                  # Sync skills from canonical source
-mosaic update                # Check for and install CLI updates
+mosaic skill list            # Audit Claude skill registrations and conflicts
+mosaic skill register <name> # Register one canonical skill with Claude Code
+mosaic skill unregister <name> # Remove one Mosaic-owned Claude link
+mosaic update                # Update CLI/framework and auto-register canonical skills
 mosaic wizard                # Full guided setup wizard
 mosaic bootstrap <path>      # Bootstrap a repo with Mosaic standards
 mosaic coord init            # Initialize a new orchestration mission
@@ -349,6 +352,8 @@ bash tools/install.sh --yes             # Non-interactive, accept all defaults
 bash tools/install.sh --no-auto-launch  # Skip auto-launch of wizard
 ```
 
+The installer rejects unrecognized flags or positional arguments before making changes and prints the supported-option usage.
+
 ## Contributing
 
 ```bash

docs/PRD.md

@@ -79,6 +79,29 @@ Jarvis (v0.2.0) is a self-hosted AI assistant with a Python FastAPI backend and
 
 ---
 
+## Compaction Refresh Trust Lifecycle (M1, #827–#830)
+
+### Problem and objective
+
+Context compaction, session replacement, and same-PID runtime reloads can leave a previously VERIFIED runtime lease attached to stale directives. M1 must revoke that authority mechanically for Claude (including Claudex) and Pi without trusting caller-asserted identity or forking the external broker state machine.
+
+### Requirements
+
+1. `CR-REQ-01`: Claude `PreCompact` and `SessionStart` with matcher `compact`, plus Pi `session_before_compact` and the first post-`session_compact` `context`, SHALL independently revoke the active broker lease.
+2. `CR-REQ-02`: Runtime generation increases—including same-PID Pi reload/new/resume/fork and Claude resume/clear—SHALL monotonically replace the prior broker incarnation and inherit no VERIFIED lease.
+3. `CR-REQ-03`: A fired observer that cannot confirm broker revocation SHALL fail closed through lifecycle cancellation, a private local generation fence, and/or a runtime-local tool latch. The existing all-tools broker gate remains authoritative.
+4. `CR-REQ-04`: The lease TTL SHALL remain monotonic and capped at 300 seconds. If both observers are missed, within-TTL consequential actions remain allowed and after-TTL actions are denied. This named bounded residual stale window SHALL be documented without claiming a mutator-action bound inside the window.
+5. `CR-REQ-05`: Hook descendants SHALL use the broker-minted session and owner-only current-generation state inherited from register-before-exec. Caller-minted sessions and parallel lease state machines remain forbidden.
+
+### Acceptance criteria
+
+1. `AC-CR-01`: Real-socket tests prove each Claude observer revokes, Pi lifecycle tests prove both observer paths, and Claudex isolated settings preserve and install the mandatory hooks.
+2. `AC-CR-02`: A same-PID generation test proves the old generation is stale and the replacement generation is UNVERIFIED across reload/resume/fork-equivalent lifecycle events.
+3. `AC-CR-03`: RED-first T12b/T30 evidence explicitly reports dual-hook miss within TTL as **ALLOWED** and after TTL as **DENIED**.
+4. `AC-CR-04`: Attributable executable coverage is at least 85%, the full repository suite is green on deterministic main, and independent code/security review completes before merge.
+
+---
+
 ## Fleet Declarative Configuration Management Workstream (FCM, #758)
 
 ### Problem and objective

docs/SITEMAP.md

@@ -1,11 +1,39 @@
 # Documentation Sitemap
 
+## Compaction refresh lease broker
+
+- [Internal broker protocol](architecture/lease-broker-protocol.md) — kernel identity, ancestry and generation invariants, framed requests, responses, and persisted cycle bindings.
+- [Broker operations](guides/lease-broker-operations.md) — protected paths, startup, constrained recovery, fail-closed posture, distinct-principal deployment, and residual risk.
+- [Constrained recovery skill](../packages/mosaic/framework/skills/mosaic-context-refresh/SKILL.md) — source-resident thin wrapper, receipt scope, C4 replay boundary, and T-C middle-drop disclosure.
+- [Lease-broker security notes](architecture/lease-broker-security.md) — identity, whole-class authorization, threat boundaries, and coordinator review requirements.
+- [Whole mutator-class gate](architecture/mutator-class-gate.md) — default-deny policy, revoke-first/promote-last state machine, TTL, runtime adapters, and T-B/T-C assurance boundary.
+- [Compaction revocation lifecycle](architecture/compaction-revocation.md) — Claude/Pi observer matrix, same-PID generation rollover, failure fencing, and the named bounded residual stale window.
+
+## CLI and skill management
+
+- [Skill registration user guide](guides/user-guide.md#claude-code-skill-registration) — register, unregister, list statuses, automatic install/update reconciliation, and Claude reload behavior.
+- [Skill bridge developer guide](guides/dev-guide.md#claude-code-skill-bridge) — path-validation, ownership, clobber-protection, install/update wiring, tests, and Pi/Codex scope notes.
+
 ## Fleet configuration management
 
-- [Generated environment boundary](fleet/reference/generated-env-boundary.md) — roster-derived launch projection, strict local data, legacy quarantine, and downstream interface evidence.
-- [Roster v2 structural contract](fleet/reference/roster-v2-fields.md) — local-tmux schema v2 parsing and structural validation.
-- [Role classes and authority](fleet/reference/role-classes.md) — canonical role resolver and protected authority boundaries.
-- [Executable asset dispositions](fleet/migration/example-profile-disposition.md) — shipped v1 fixture/profile/service validation posture.
+- [Fleet configuration entry point](fleet/README.md) — desired-versus-observed decision tree and complete operator link map.
+- [Desired, derived, and observed state](fleet/concepts/desired-vs-observed-state.md) — roster authority, generation, ownership, and drift.
+- [Identity, class, and runtime](fleet/concepts/identity-class-runtime.md) — stable name, display alias, class, runtime, provider, and model separation.
+- [Role authority and leases](fleet/concepts/role-authority-and-leases.md) — validator/merge-gate separation and bounded lease authority.
+- [Generated launch chain](fleet/concepts/generated-env-launch-chain.md) — strict data parsing, precedence, and quarantine.
+- [Roster v2 structural contract](fleet/reference/roster-v2-fields.md) — schema, supported values, required fields, defaults, and constraints.
+- [Fleet CLI reference](fleet/reference/cli.md) — local desired-state commands, JSON/exit behavior, and gateway-catalog separation.
+- [Lifecycle transitions](fleet/reference/lifecycle-transitions.md) — create/apply/reboot/migration/rollback boundaries.
+- [Status and drift](fleet/reference/status-and-drift.md) — desired/managed/observed state and current/future classifications.
+- [Safe agent CRUD](fleet/how-to/create-update-delete-agent.md) — expected generation, dry-run, and partial-failure recovery.
+- [Local lifecycle operations](fleet/how-to/start-stop-restart.md) — persisted versus one-shot actions.
+- [Configurable interaction instance](fleet/how-to/configure-tess-interaction.md) and [validator instance](fleet/how-to/configure-ultron-validator.md) — generic identities and protected limits.
+- [Reconcile and recover](fleet/operations/reconcile-and-recover.md) — plan/apply lock and recovery behavior.
+- [Environment quarantine](fleet/operations/env-quarantine.md) — private evidence and value-free diagnostics.
+- [Systemd/tmux troubleshooting](fleet/operations/systemd-tmux-troubleshooting.md) — socket, holder, unmanaged-session, and lock decisions.
+- [Backup/restore boundary](fleet/operations/backup-restore.md) and [upgrade-assets hold](fleet/operations/upgrade-assets.md).
+- [v1-to-v2 migration preview](fleet/migration/v1-to-v2.md) and [executable artifact dispositions](fleet/migration/example-profile-disposition.md).
+- [FCM M5 closure evidence](reports/documentation/758-fleet-config-ia-closure.md) and [approved deferrals](reports/deferred/758-fleet-config-deferrals.md).
 
 ## Official channel plugins
 

docs/TASKS.md

@@ -53,7 +53,7 @@ Active workstream is **W1 — Federation v1**. Workers should:
 > the applicable acceptance evidence before merge. Issue #758 remains open until M5 closes.
 
 | id         | status      | description                                                                                                                                                            | issue | agent         | repo              | branch                                  | depends_on                                     | estimate | notes                                                                                                                                                                                                              |
-| ---------- | ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----- | ------------- | ----------------- | --------------------------------------- | ---------------------------------------------- | -------- | ---------------------------------------------------------------------------------------------------------------- |
+| ---------- | ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----- | ------------- | ----------------- | --------------------------------------- | ---------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
 | FCM-M0-001 | done        | Publish normative PRD requirements/acceptance criteria, this M0–M5 DAG, docs-IA checklist, and legacy example/profile disposition inventory; no implementation changes | #758  | sonnet        | mosaicstack/stack | `docs/758-fleet-config-management`      | —                                              | 18K      | Merged via #760 (`c32d85a`); parent #758 intentionally remains open through M5                                                                                                                                     |
 | FCM-M1-001 | done        | Implement narrow local-tmux v2 roster structural contract/compiler with YAML/JSON canonicalization and schema/parser parity tests                                      | #758  | coder0        | mosaicstack/stack | `feat/758-roster-v2-compiler`           | FCM-M0-001                                     | 30K      | #764 squash `aa5b43b`; exact-head RoR and PR/main terminal-green CI; no lifecycle or live mutation                                                                                                                 |
 | FCM-M1-002 | done        | Reuse existing profile/persona/provision resolver for roster semantics; add canonical class/authority validation and approved aliases                                  | #758  | native-sonnet | mosaicstack/stack | `feat/758-shared-role-resolution`       | FCM-M0-001                                     | 25K      | #768 squash `a5e8e55`; shared resolver and canonical authority/alias validation delivered                                                                                                                          |
@@ -62,10 +62,10 @@ Active workstream is **W1 — Federation v1**. Workers should:
 | FCM-M2-002 | done        | Add generation-guarded local fleet agent create/get/update/delete mutations with plan/dry-run, atomic roster writes, and recovery output                               | #758  | codex         | mosaicstack/stack | `feat/758-fleet-agent-crud`             | FCM-M1-001, FCM-M2-001                         | 30K      | #773 squash `bc5e736`; generation-guarded atomic CRUD and recovery contracts delivered                                                                                                                             |
 | FCM-M3-001 | done        | Implement local roster-owned reconcile/apply plus lifecycle/status/verify/doctor contracts and stable JSON/exit codes                                                  | #758  | codex         | mosaicstack/stack | `feat/758-local-reconciler`             | FCM-M2-001, FCM-M2-002                         | 35K      | #785 squash `4990905`; exact roster-owned systemd/tmux reconcile and lifecycle contracts delivered                                                                                                                 |
 | FCM-M3-002 | in-progress | Add isolated systemd/tmux lifecycle, drift, socket, unmanaged-session, crash, and rollback acceptance coverage                                                         | #758  | sonnet        | mosaicstack/stack | `test/758-reconciler-lifecycle-gates`   | FCM-M3-001                                     | 25K      | Canonical v2 named-socket + legacy-v1 default-server boundaries; fake adapters/temp fixtures only                                                                                                                  |
-| FCM-M4-001 | not-started | Implement field-complete v1-to-v2 inventory/preview/migrator with alias, lifecycle, env-quarantine, and remote/connector disposition evidence                          | #758  | codex         | mosaicstack/stack | `feat/758-v1-v2-migrator`               | FCM-M1-003, FCM-M3-001                         | 35K      | Preview first; no unreviewed lifecycle inference                                                                 |
-| FCM-M4-002 | not-started | Add reversible canary migration, rollback, stale-projection/orphan classification, and current-host 9-managed/3-unmanaged fixture coverage                             | #758  | sonnet        | mosaicstack/stack | `test/758-migration-rollback-gates`     | FCM-M4-001, FCM-M3-002                         | 25K      | Never starts a previously stopped agent or kills an unproven unmanaged session                                   |
-| FCM-M5-001 | not-started | Deliver the accepted fleet documentation IA, how-to/operations/migration references, and link/example validation                                                       | #758  | haiku         | mosaicstack/stack | `docs/758-fleet-config-operator-docs`   | FCM-M1-003, FCM-M2-002, FCM-M3-001, FCM-M4-001 | 24K      | Must close every checklist item or record an approved deferral                                                   |
-| FCM-M5-002 | not-started | Package/update asset-drift checks, rolling local canary, independent validation certificate, and release evidence                                                      | #758  | sonnet        | mosaicstack/stack | `feat/758-fleet-config-release-gate`    | FCM-M3-002, FCM-M4-002, FCM-M5-001             | 30K      | Final #758 gate: quality, independent code/security review, validator certificate, merge-gate approval, green CI |
+| FCM-M4-001 | done        | Implement field-complete v1-to-v2 inventory/preview/migrator with alias, lifecycle, env-quarantine, and remote/connector disposition evidence                          | #758  | codex         | mosaicstack/stack | `feat/758-v1-v2-migrator`               | FCM-M1-003, FCM-M3-001                         | 35K      | PR #788; final head `d63bb0206a1d312ab8352ec1d3ca3631146b0baa`; tree `4da210da9a71b035130d4160a4a2e691bdfde2da`; squash `9745bc3f29c26b021a478b7ad03cfb494f6c9de3`; descendant-main pipeline 1855 terminal success |
+| FCM-M4-002 | not-started | Add reversible canary migration, rollback, stale-projection/orphan classification, and current-host 9-managed/3-unmanaged fixture coverage                             | #758  | sonnet        | mosaicstack/stack | `test/758-migration-rollback-gates`     | FCM-M4-001, FCM-M3-002                         | 25K      | HOLD: never starts a previously stopped agent or kills an unproven unmanaged session; not authorized by FCM-M5-001                                                                                                 |
+| FCM-M5-001 | done        | Deliver the accepted fleet documentation IA, how-to/operations/migration references, and link/example validation                                                       | #758  | haiku         | mosaicstack/stack | `docs/758-fleet-config-operator-docs`   | FCM-M1-003, FCM-M2-002, FCM-M3-001, FCM-M4-001 | 24K      | #789 content squash 627cf2bb; de-flake repair PR#851/#849 squash 77c9a826; completion proof wp1937 @aa999daf push/ci step 49632 recovery_runtime_unittest.py 3/3 OK (closes wp1932 step 49576 Errno111)            |
+| FCM-M5-002 | not-started | Package/update asset-drift checks, rolling local canary, independent validation certificate, and release evidence                                                      | #758  | sonnet        | mosaicstack/stack | `feat/758-fleet-config-release-gate`    | FCM-M3-002, FCM-M4-002, FCM-M5-001             | 30K      | HOLD: final #758 gate; quality, independent code/security review, validator certificate, merge-gate approval, and green CI remain out of M5-001                                                                    |
 
 ## Thin-core prompt diet (#528) — feat/contract-thin-core
 

docs/architecture/compaction-revocation.md

@@ -0,0 +1,59 @@
+# Compaction observer revocation and runtime generations
+
+WI-3 connects Claude and Pi compaction/session lifecycle events to the existing authenticated lease-broker state machine. It does not add a second lease store or let runtime hooks assert identity. Each observer inherits the broker-minted session, resolves the current private runtime generation, and sends the existing `revoke_lease` action over the authenticated Unix socket.
+
+## Observer matrix
+
+| Runtime          | Lifecycle signal                                                 | Action                                                                                                                       |
+| ---------------- | ---------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------- |
+| Claude / Claudex | `PreCompact`                                                     | Revoke the current lease before compaction. A non-zero hook result blocks the lifecycle transition.                          |
+| Claude / Claudex | `SessionStart` with matcher `compact`                            | Revoke again after compacted context starts.                                                                                 |
+| Claude / Claudex | `SessionStart` with matcher `resume\|clear`                      | Atomically advance the private generation, then revoke the replacement incarnation.                                          |
+| Pi               | `session_before_compact`                                         | Revoke before compaction; return `{ cancel: true }` if revocation cannot be confirmed.                                       |
+| Pi               | `session_compact` then the first `context`                       | Arm and run an independent post-compaction revoke. A failed post observer blocks later tools locally until a retry succeeds. |
+| Pi               | `session_start` with reason `reload`, `new`, `resume`, or `fork` | Atomically advance the private generation, then revoke the replacement incarnation before reuse.                             |
+
+The first observer that reaches the broker deletes pending promotion tokens and makes the lease `UNVERIFIED`. The second compaction observer is deliberate redundancy, not a prerequisite for the first. Claudex receives the same mandatory hooks in its isolated `CLAUDE_CONFIG_DIR`; hook merging preserves unrelated isolated settings and rejects malformed or symlinked settings fail-closed.
+
+## Private generation authority
+
+`launch-runtime.py` still registers before `exec`, preserving the kernel-authenticated PID/starttime anchor. It now also creates `generation-<broker-session>.state` beside the broker socket. The file is owner-only mode `0600` under the broker's mode-`0700` directory. Hook descendants read that file instead of relying only on an immutable inherited environment value.
+
+Generation changes use an exclusive file lock, validate owner/type/mode/size, increment monotonically, truncate and write the complete new value, and `fsync` before contacting the broker. Therefore reload, new-session, resume, and fork events may retain the same PID/starttime while still becoming a new broker incarnation. The higher generation causes the broker to atomically discard prior tokens and lease authority; the replacement generation inherits no VERIFIED lease.
+
+If an observer fires while broker transport is unavailable, `revoke-lease.py` advances the private generation as a local fence before returning non-zero. Every later all-tools gate reads that higher value. When the broker is reachable again, authentication of that value performs the same old-generation revocation before authorization. Pi also keeps a process-local post-compaction/rollover failure latch that blocks tool calls. An unsafe or unreadable generation file itself makes both lifecycle revocation and tool authorization fail closed.
+
+## Threat contract and stopping boundary
+
+### BOUNDED RESIDUAL STALE WINDOW
+
+If **both** pre- and post-compaction observers are missed entirely, no revocation signal exists. During the remaining unexpired lease, **within-TTL consequential actions are allowed**. Their count and timing are **bounded by lease expiry, not by the mutator gate**. WI-3 makes no claim that it bounds mutator actions inside this stale interval. The broker's monotonic lease TTL is capped at 300 seconds; after expiry, the next consequential tool is denied with `LEASE_EXPIRED`.
+
+This is the named D2-v5 T-A residual. It is distinct from an observer that fires but cannot contact the broker: the latter creates a local generation fence and fails closed. It is also distinct from T-C total rot, where the lifecycle observers and the all-tools gate are both absent or replaced. Server-side branch protection, required CI, and independent review remain the irreducible backstop for T-C.
+
+| Condition                                                       | Result                                                                                                                |
+| --------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------- |
+| Either compaction observer succeeds                             | Existing lease and pending promotion tokens are revoked immediately.                                                  |
+| Observer runs but broker confirmation fails                     | Lifecycle transition is denied where supported; local generation fence and runtime latch prevent inherited authority. |
+| Both observers are missed, lease unexpired                      | **ALLOWED** inside the bounded residual stale window. No within-window mutator bound is claimed.                      |
+| Both observers are missed, lease expired                        | **DENIED** by monotonic TTL expiry.                                                                                   |
+| Generation advances on reload/new/resume/fork                   | Prior incarnation revoked; replacement starts `UNVERIFIED`.                                                           |
+| Lifecycle observers and all-tools gate both fail or are removed | T-C total-hook-miss residual; protected-branch controls remain required.                                              |
+
+## T-C server-side branch-protection posture
+
+The required posture is that `main` is push-blocked and PR-only-merge is **MANDATORY**, regardless
+of client-gate state. The client-side gate narrows the exposure window only; it is not the T-C
+guarantee. The server-side protected-branch configuration is the irreducible guarantee for protected
+repository actions. Status-check enforcement and approval enforcement are **RECOMMENDED**.
+
+## Current-vs-required gap (recorded, not enacted)
+
+The current empirical configuration is recorded here without re-probing or mutating live branch
+protection. `enable_push=False` (push-block present), so the mandatory push-block/PR-only-merge core
+holds. `require_approvals=0` (approvals not enforced), `enable_status_check=False` (status checks not
+enforced), and `block_on_official_review=False` (official review not enforced). Those recommended
+merge-quality controls are the current gap; changing them is a separate, owner-gated operations
+decision and is not enacted by this documentation change.
+
+The permanent T12b/T30 acceptance case prints both required outcomes: dual-hook miss within TTL is **ALLOWED**, and the same lease after TTL is **DENIED**. Separate real-socket tests prove each Claude observer and same-PID generation rollover; Pi lifecycle tests exercise pre/post observers, all four replacement reasons, and local failure closure.

docs/architecture/lease-broker-protocol.md

@@ -0,0 +1,35 @@
+# Authenticated external lease broker protocol
+
+The compaction-refresh lease broker is a Linux-only, newline-framed JSON protocol over a Unix stream socket. It is runtime-neutral; M1 consumers are limited to Claude and Pi. This is an internal process boundary, not an HTTP API, so it is intentionally absent from OpenAPI.
+
+The broker, never the caller, obtains `(pid, uid, gid)` from kernel `SO_PEERCRED`. It correlates the PID with `/proc/<pid>/stat` field 22 (`starttime`) and mints `session_id` on `register_anchor`. Presence of `session_id` in that request is refused even when its value is `null` or empty. Later requests must originate from the anchor or a descendant. The broker walks parent PIDs to the `(pid,starttime)` anchor and then rereads every walked PID's starttime before accepting the chain.
+
+## Request and response boundary
+
+Each connection carries exactly one UTF-8 JSON object followed by one newline, capped at 64 KiB. The protocol deliberately uses EOF to prove that there is exactly one frame: immediately after writing the newline, the client **MUST half-close its write side** with `shutdown(SHUT_WR)` (or Node `socket.end()`) before awaiting the response. A client that writes a newline but leaves its write side open receives no successful response; the broker's one-second connection deadline fails closed. Malformed, unterminated, multiple (including a delayed second frame), or oversized frames fail closed. Responses are one JSON object and one newline. Success has `{"ok":true,...}`; refusal has `{"ok":false,"code":"TYPED_CODE"}`. Requests are:
+
+- `register_anchor`: `action`, non-negative `runtime_generation`; no `session_id` field.
+- `authenticate`: `action`, broker-minted `session_id`, non-negative `runtime_generation`.
+- `mint_token`: authenticated identity plus `binding` containing exactly `compaction_epoch`, `request_epoch`, `h_source`, `h_payload`, and `schema_version`.
+- `consume_token`: authenticated identity plus `token`.
+- `begin_verification`: authenticated identity, runtime (`claude` or `pi`), cycle `binding`, and a TTL no greater than 300 seconds. The broker revokes existing authority first, enters `PENDING_VERIFICATION`, and returns a single-use promotion token.
+- `begin_recovery`: the constrained recovery entrypoint. It rejects caller-provided receipt/challenge fields and delegates to the same `begin_verification` transition, but reports `PENDING_DELIVERY` and marks the volatile cycle as recovery-owned.
+- `complete_recovery`: authenticated identity only. It rejects caller-provided receipt/challenge fields, obtains the current recovery challenge only from broker state, and delegates to the same trusted-observer → evidence → consume → promote sequence. An observation failure revokes recovery authority; retry starts a fresh challenge.
+
+The daemon owns a second protected production observer socket (mode `0600`) unless a private `--test-observer-file` fixture is selected. That transport accepts only the exact `record_runtime_observation` schema after kernel `SO_PEERCRED` plus the existing anchor/ancestry authentication; it validates the pending runtime/generation before storing one finalized assistant entry for the in-process `RuntimeReceiptObserver`. It is **not** a broker request action. Claude sends its latest assistant entry from the Stop-hook transport; Pi sends only finalized `message_end` assistant content. The public broker socket continues to reject request-supplied `latest_assistant_message` in begin, observe, and complete paths.
+
+- `promote_lease`: authenticated identity plus the exact pending promotion token. The broker commits token consumption before making `VERIFIED` visible.
+- `revoke_lease`: authenticated observer signal; deletes pending tokens and makes the session `UNVERIFIED` immediately. WI-3 Claude/Pi hooks send this existing action; `runtime` and bounded `reason` fields are diagnostic input only and never identity authority.
+- `authorize_tool`: authenticated identity, runtime, and exact runtime-reported tool name. The broker returns an explicit allow/deny decision from the whole-class policy and current lease.
+
+A higher generation for the same anchor atomically replaces the stored incarnation and deletes all prior tokens and lease authority for that session. A lower generation is stale. Runtime descendants resolve the current generation from an owner-only, locked generation file created by the register-before-exec launcher; reload/new/resume/fork observers advance and `fsync` it before broker revocation. This supports generation replacement even when PID/starttime do not change. Tokens are 256-bit values from the operating-system cryptographic RNG and are single use. At most 256 pending tokens may be persisted; another mint fails with `TOKEN_CAPACITY` before mutation. Successful consumption deletes the token, while a replay still fails with `TOKEN_REPLAY`. Live v1 token records retain the existing `consumed: false` schema.
+
+VERIFIED leases are volatile and monotonic-time bounded: broker restart, generation change, explicit observer revocation, or expiry returns the session to `UNVERIFIED`. `begin_verification` always revokes before minting a new prerequisite. `begin_recovery` reuses that exact transition and mints a new challenge, so a normal-path receipt/challenge cannot be replayed through recovery. `promote_lease` is valid only from the matching pending cycle; persistence failure rolls token and lease state back, while post-rename durability uncertainty terminates the broker. The WI-1 token is the atomic promotion prerequisite substrate.
+
+## Receipt boundary and T-C residual (R1)
+
+Receipt evidence is a T-A delivery/liveness prerequisite only; it cannot replace the mechanical
+mutator gate as safety authority. The receipt detects an **ABSENT** or **PREFIX-TRUNCATED** terminal
+token. A **MIDDLE-DROP** that preserves the tail is a T-C contract violation that is **NOT receipt-detectable**. It is covered by server-side protected-branch controls, **NOT** by the receipt; no category-wide receipt-detection claim is made for that tail-preserving transformation.
+
+State replacement serializes and enforces the 4 MiB maximum before opening a temporary file, then uses a mode-`0600` temporary file, `fsync`, atomic rename, and parent-directory `fsync`. Every broker mutation snapshots the prior v1 state. A commit failure before rename restores that snapshot and leaves durable state unchanged. A failure after rename makes durability uncertain, so the store is poisoned without rolling memory back and the daemon terminates rather than serving with divergent state. Existing state is opened without following symlinks, must be a bounded regular file at mode `0600`, and is fully schema- and invariant-validated before use. Persisted tokens must be unconsumed, match their session's current generation, and remain within the 256-token cap. Session identity is uniquely keyed by `(anchor_pid,anchor_starttime)`; duplicate logical sessions for one anchor refuse startup. State integrity or mode failures refuse startup. The daemon does not log session IDs or tokens.

docs/architecture/lease-broker-security.md

@@ -0,0 +1,26 @@
+# WI-1 lease broker security notes
+
+- Trusted identity comes only from Linux `SO_PEERCRED` plus `/proc` starttime, never request identity fields.
+- Descendant authorization is anchored to `(pid,starttime)` and uses a complete second starttime pass to fail closed on disappearance or PID-reuse races.
+- Runtime generations are monotonic per anchor; a bump revokes prior-incarnation tokens before persistence commits. WI-3 stores the live generation in an owner-only locked file so same-PID Pi reload/new/resume/fork and Claude resume/clear transitions cannot inherit a VERIFIED lease.
+- Session IDs and cycle tokens use the OS cryptographic RNG. `Math.random` and model output are not token sources.
+- Framing and persistence failures fail closed. Sensitive tokens are not logged.
+- Built-in `0700`/`0600` filesystem modes provide same-principal hardening only, not socket authenticity against the same UID. WI-1 provides no distinct-principal isolation. That stronger deployment requires an external protected proxy, ACL, or service boundary, and the boundary must preserve authenticated client identity for the broker's `SO_PEERCRED` and ancestry authorization rather than substituting a shared proxy identity.
+- WI-2 whole-class authorization denies every consequential, unknown, and custom tool while UNVERIFIED; it does not inspect shell strings or trust wrapper selection. First-class Claude/Pi, both Claudex dispatch modes, PRDY, QA remediation, coord, orchestrator, and fleet starts converge on broker register-before-exec; Claudex additionally installs the mandatory all-tools hook inside its preserved isolated config and fails closed on unsafe settings.
+- The permanent `check-runtime-launches.py` suite/CI guard scans production source for direct literal, absolute-path, process-API, command-array, and dynamic Claude/Pi launches. It has no bypass allowlist: an unrecognized launch form fails CI until routed through the common boundary.
+- WI-2 promotion consumes a WI-1 cycle token before VERIFIED becomes visible. Observer revocation, runtime-generation replacement, broker restart, and monotonic TTL expiry remove authority.
+- WI-3 wires redundant Claude `PreCompact`/`SessionStart(compact)` and Pi `session_before_compact`/post-`session_compact` `context` observers to that same revoke action. If broker confirmation fails after an observer fires, the revoker advances the private generation as a local fence; subsequent authorization revokes the stale broker incarnation before any consequential allow.
+- Dual observer absence while a lease remains live is the named **bounded residual stale window**: consequential tools remain allowed until monotonic expiry, with no claimed within-window action bound. After expiry they are denied. Total observer-plus-gate absence remains T-C.
+- Receipt observation, payload construction, and constrained recovery implementation remain later surfaces. A receipt can become a promotion prerequisite but is never the safety mechanism.
+
+## Named residual: promote-lease-lost-ACK (WI-3 D2-v5)
+
+A valid `promote_lease` can leave a session `VERIFIED` in the broker while the client never learns of it. This is a named, bounded D2-v5 T-A residual — an **authority-observability divergence, not an authority divergence, not an ALLOW-risk, and not a retry double-apply**. It is disclosed here, not laundered.
+
+**Window — where it can occur.** The broker commits token consumption and durable `VERIFIED` state _before_ the success reply becomes visible (see the promotion order in `lease-broker-protocol.md`). The residual is confined to the interval after that commit+fsync when the broker→client reply or peer-ACK is lost — for example an extreme-contention send failure or peer disconnect after `handle()` has already mutated and persisted state (the #838 fail-closed transport path). The lease mutation is already durable broker-side; only the acknowledgement to the client is lost. No uncommitted or partially-applied state is involved: the commit either happened (and is authoritative) or it did not (and no lease exists).
+
+**Fail-safe direction — the client can only under-claim.** Broker intent is the ceiling; client authority is always ≤ broker intent, never more. Client-side authority-belief is granted only by a _received_ acknowledgement; a lost acknowledgement conveys nothing, so the client cannot conclude "verified" and continues to treat itself as `UNVERIFIED` (it re-verifies or recovers). If the client retries `promote_lease` with the same token, the token is already consumed and the broker rejects the retry (`PROMOTION_TOKEN_MISMATCH` / `INVALID_LEASE_TRANSITION`); there is no double-apply. The committed `VERIFIED` state the broker holds is authority the lease _legitimately earned_ from a real promotion — the broker authorizing consequential tools under it is correct, not inflation. Divergence is therefore strictly toward _less_ client authority than the broker granted; it never produces authority the broker did not grant.
+
+**Bound — TTL plus the observer/gen-bump revoke backstop, self-healing.** The orphaned `VERIFIED` lease is indistinguishable to the broker from any other legitimately verified lease, so the identical D2-v5 revocation backstops dispose of it: any compaction observer (`PreCompact` / `SessionStart(compact)` for Claude; `session_before_compact` / post-`session_compact` `context` for Pi), any same-PID runtime-generation bump (reload/new/resume/fork), broker restart, or monotonic-time expiry returns the session to `UNVERIFIED`. Monotonic TTL expiry (capped at 300 seconds) is **unconditional** — it requires no observer at all — so the maximum exposure of the orphaned lease is one TTL, ≤ 300 s, after which the next consequential tool is denied with `LEASE_EXPIRED`. Any observer that fires shortens the window further. The residual self-heals: "≥1 observer fires OR expiry ⇒ revoke" catches the lost-ACK lease on the same terms as every other stale lease. As with the dual-observer-miss stale window, WI-3 makes no claim that the mutator gate bounds actions inside the residual interval; the interval is bounded by TTL and the revoke backstop, and the server-side branch-protection / required-CI / independent-review line remains the irreducible backstop for protected-repository mutations.
+
+Coordinator security review must rerun the real socket/peercred and mutator-gate acceptance suites on an unrestricted Linux runner and obtain the mandated independent Opus-SECREV review before integration.

docs/architecture/mutator-class-gate.md

@@ -0,0 +1,72 @@
+# Whole mutator-class lease gate
+
+WI-2 adds the framework-native authorization boundary for Claude (including the supported Claudex overlay) and Pi. Every runtime-reported tool name reaches the lease broker before execution. The gate classifies capabilities by the whole tool class; it never parses a Bash command to decide whether that particular string looks read-only.
+
+## Default-deny policy
+
+While a session is not VERIFIED, only these exact classes are allowed:
+
+- Claude: `Read`, `Grep`, `Glob`, `Ls`, `Find`
+- Pi: `read`, `grep`, `find`, `ls`
+- Both runtimes: the fixed `mosaic_context_recover` primitive
+
+Every other built-in, unknown tool, and custom/MCP tool is consequential by default and is denied. This includes Claude `Bash`, `Edit`, `Write`, and `NotebookEdit`, plus Pi `bash`, `edit`, and `write`. A compromised model therefore cannot bypass Mosaic wrappers by selecting raw `git`, `curl`, `kubectl`, provider, deployment, or filesystem commands inside a generic mutator—the generic mutator itself is blocked before its input executes.
+
+## Broker-owned transition order
+
+The authenticated broker is the sole lease writer:
+
+1. `begin_verification` revokes existing authority and pending tokens first, then records `PENDING_VERIFICATION` and mints one WI-1 single-use promotion token bound to the exact cycle.
+2. `promote_lease` accepts only that session/generation/binding/token combination.
+3. Token consumption commits before the volatile lease becomes VERIFIED. Promotion is last and cannot be reached directly from UNVERIFIED.
+4. `revoke_lease`, a runtime-generation increase, broker restart, or monotonic expiry removes mutator authority.
+
+The initial TTL is capped at the ratified 300-second maximum. A caller may request a shorter positive TTL but cannot lengthen the maximum. WI-3 installs the [compaction observer and generation lifecycle](compaction-revocation.md). Dual compaction-hook miss within an unexpired lease remains the ratified bounded T-A residual: consequential tools are allowed until expiry, with no claimed within-window action bound; once either observer revokes or TTL expires, the next consequential tool is denied.
+
+A receipt is only a future promotion prerequisite. It is not an obedience, residency, or safety proof and never replaces this mechanical gate.
+
+## Runtime adapters
+
+`launch-runtime.py` registers itself with the broker and then `exec`s Claude or Pi so PID/starttime remain the authenticated parent anchor. It exports the broker-minted session ID and an owner-only generation-file reference to descendants; lifecycle hooks advance that file for same-PID replacement generations.
+
+- Claude installs `mutator-gate.py` as an all-tools (`.*`) `PreToolUse` hook.
+- `mosaic claudex` and `mosaic yolo claudex` preserve their isolated `CLAUDE_CONFIG_DIR`, merge the mandatory hook into that isolated `settings.json`, and use the same register-before-exec launcher. Malformed or symlinked isolated settings deny launch.
+- Pi invokes the same executable from its `tool_call` handler.
+
+The executable submits the runtime's actual tool name to `authorize_tool`. Missing identity, malformed input/reply, timeout, broker unavailability, or denial exits with status 2 and blocks fail-closed.
+
+## Runtime-launch choke-point and permanent guard
+
+Every repository-owned Claude/Pi launch entry converges on `launch-runtime.py`, either directly or through `mosaic` → `execLeaseGatedRuntime`. PRDY init/update and QA remediation invoke the wrapper directly so their existing prompts, dangerous-permission behavior, working directory, and environment survive without skipping broker registration. The raw Claude `--dangerously-skip-permissions` primitive is owned only by `launch-runtime.py`; callers request semantic `--dangerous` mode, and the wrapper validates Claude before injecting the primitive. `@mosaicstack/coord` rewrites direct Claude commands to `mosaic claude` and rejects unknown custom Claude launchers.
+
+`check-runtime-launches.py` is the permanent completeness guard. It scans production shell, TypeScript/JavaScript, Python, and data launch definitions under `packages/`, `apps/`, `plugins/`, and `tools/`; direct literal, absolute-path, process-API, dynamic, command-substitution, `eval`, and variable-execution runtime launches fail. Shell comments are stripped with quote awareness, wrapper prefixes are tokenized with `shlex`, and only an invocation in command position with `--runtime` before the command separator is gated. Literal and tracked-variable command tokens use one terminal resolver after any nesting of `exec`, `command`, `nohup`, or `env` plus assignments. A direct command always wins over an inert marker on the same line. Independently, the raw dangerous primitive anywhere outside the choke-point is RED.
+
+The command parser is a best-effort CI defense, not a complete shell interpreter. Alias/function redefinition, sourced commands, generated scripts, and encoded pipelines are intentionally residual rather than an invitation to chase an unbounded shell language. Two runtime controls backstop that residual surface: primitive ownership rejects a dangerous launch even when command identity is alias-indirected, and Claude's global `.*` `PreToolUse` hook invokes the broker gate for non-dangerous launches. Without `MOSAIC_LEASE_SESSION_ID`, representative read, mutator, and custom/MCP tools all fail closed with `GATE_UNAVAILABLE`. Hook absence or replacement remains in the documented T-C boundary.
+
+### Parser stopping criterion
+
+- **A — realistic parser matrix:** comments, inert strings/assignments, heredocs, continuations, chained commands, command substitution, `eval`, bare tracked variables, and quoted/unquoted tracked variables behind `exec`, `command`, `nohup`, or `env` are permanent RED regressions. Prefix-variable forms are covered in both multiline and same-line assignment shapes.
+- **B — residual backstops:** a dangerous alias-indirected launch is RED solely through primitive anchoring; a parser-missed non-dangerous alias launch is paired with an acceptance test proving the global all-tools hook denies every representative tool class as `GATE_UNAVAILABLE` without a lease.
+- **C — independent fresh review:** the parser class is considered complete only when reviewers find no new non-overlapping realistic evasion on the exact head. A and B are repository evidence; C is supplied by the fresh review round.
+
+All three layers are load-bearing and complementary. The guard is mandatory in `@mosaicstack/mosaic`'s test script, so root CI fails on a future realistic bypass. Real-socket tests separately prove PRDY init/update and QA receive broker sessions and deny an unverified mutator.
+
+The live inventory is emitted by:
+
+```bash
+python3 packages/mosaic/framework/tools/lease-broker/check-runtime-launches.py --root . --json
+```
+
+| Production launch family                               | Gated entries |
+| ------------------------------------------------------ | ------------: |
+| `@mosaicstack/coord` default/configured Claude command |             2 |
+| Fleet runtime start                                    |             1 |
+| QA remediation + generated QA command                  |             2 |
+| Orchestrator command construction/session launches     |             3 |
+| PRDY init/update                                       |             2 |
+| Mosaic Claude/Pi/Claudex adapter and wrapper boundary  |             4 |
+| **Total**                                              |   **14 / 14** |
+
+## Assurance boundary
+
+This closes T-A after an observer fires or lease expiry and T-B for in-runtime tool calls. Hook/extension absence, a runtime executing outside the gated launcher, ptrace/same-UID broker replacement, and other fully rotted behavior remain T-C. Server-side branch protection and required PR review/CI remain the irreducible line for protected repository mutations.

docs/compaction-refresh/probes/p5_receipt_replay.py

@@ -0,0 +1,228 @@
+#!/usr/bin/env python3
+"""P5 Gate0 replay probe; BUILT ONLY, execution is Mos-gated.
+
+Run only under fresh-executor authorization:
+  python3 -I -S -B docs/compaction-refresh/probes/p5_receipt_replay.py
+
+Each of the default three isolated runs launches the shipped lease-broker daemon
+in a distinct private temporary directory.  This driver never changes broker
+state directly and does not replace the promote gate: every transition is sent
+over the daemon's real Unix socket.  It proves the shipped order is
+PENDING_DELIVERY -> observe/evidence commit -> consume -> VERIFIED and that a
+consumed challenge cannot be replayed or reopen/renew its lease.
+"""
+
+from __future__ import annotations
+
+import argparse
+import base64
+import importlib.util
+import json
+import os
+import shutil
+import socket
+import subprocess
+import sys
+import tempfile
+import time
+from pathlib import Path
+
+
+HERE = Path(__file__).resolve().parent
+REPOSITORY = HERE.parents[2]
+TOOLS = REPOSITORY / "packages/mosaic/framework/tools/lease-broker"
+DAEMON = TOOLS / "daemon.py"
+FRAGMENTS = TOOLS / "normative_fragments.py"
+
+
+def load_shipped_fragments():
+    if not FRAGMENTS.is_file():
+        raise RuntimeError(f"shipped normative construction missing: {FRAGMENTS}")
+    spec = importlib.util.spec_from_file_location("p5_shipped_normative_fragments", FRAGMENTS)
+    if spec is None or spec.loader is None:
+        raise RuntimeError("unable to load shipped normative construction")
+    module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(module)
+    return module
+
+
+def request(socket_path: Path, value: dict[str, object]) -> dict[str, object]:
+    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as connection:
+        connection.settimeout(3.0)
+        connection.connect(str(socket_path))
+        connection.sendall((json.dumps(value, separators=(",", ":")) + "\n").encode())
+        connection.shutdown(socket.SHUT_WR)
+        response = bytearray()
+        while True:
+            chunk = connection.recv(4096)
+            if not chunk:
+                break
+            response.extend(chunk)
+    if not response.endswith(b"\n") or response.count(b"\n") != 1:
+        raise AssertionError(f"unframed broker reply: {bytes(response)!r}")
+    parsed = json.loads(response[:-1])
+    if not isinstance(parsed, dict):
+        raise AssertionError(f"non-object broker reply: {parsed!r}")
+    return parsed
+
+
+def wait_ready(process: subprocess.Popen[str], socket_path: Path) -> None:
+    deadline = time.monotonic() + 5.0
+    while time.monotonic() < deadline:
+        if socket_path.exists():
+            return
+        if process.poll() is not None:
+            output = process.stdout.read() if process.stdout is not None else ""
+            raise RuntimeError(f"shipped daemon exited before READY: {output}")
+        time.sleep(0.02)
+    raise TimeoutError("shipped daemon did not create private probe socket")
+
+
+def expect_refused(reply: dict[str, object], code: str) -> None:
+    if reply != {"ok": False, "code": code}:
+        raise AssertionError(f"expected refusal {code}, got {reply!r}")
+
+
+def run_once(index: int) -> str:
+    fragments = load_shipped_fragments()
+    root = Path(tempfile.mkdtemp(prefix=f"mosaic-p5-replay-{index}-"))
+    os.chmod(root, 0o700)
+    socket_path = root / "broker.sock"
+    state_path = root / "state.json"
+    observer_path = root / "test-observer.json"
+    process = subprocess.Popen(
+        [
+            sys.executable, "-I", "-S", "-B", str(DAEMON), "--socket", str(socket_path),
+            "--state", str(state_path), "--test-observer-file", str(observer_path),
+        ],
+        stdin=subprocess.DEVNULL,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+        text=True,
+    )
+    try:
+        wait_ready(process, socket_path)
+        registered = request(socket_path, {"action": "register_anchor", "runtime_generation": 1})
+        if registered.get("ok") is not True or not isinstance(registered.get("session_id"), str):
+            raise AssertionError(f"registration failed: {registered!r}")
+        session_id = registered["session_id"]
+        construction = fragments.build_payload(
+            manifest_version=1,
+            generator_version="p5-replay-probe",
+            fragments=[
+                fragments.NormativeFragment(
+                    "authority/probe",
+                    b"P5 shipped transition driver\n",
+                    "63537df1a6cb0d80195a96757ab11d629e5b5e1f23be167218b84cb195b1c1d6",
+                ),
+            ],
+        )
+        if construction.injectionDecision != "ACCEPTED" or not construction.promotion:
+            raise AssertionError("shipped normative construction refused P5 fixture")
+        binding = {
+            "compaction_epoch": index,
+            "request_epoch": index + 100,
+            "h_source": construction.h_source,
+            "h_payload": construction.h_payload,
+            "schema_version": 1,
+        }
+        construction_request = {
+            "manifest_version": 1,
+            "generator_version": "p5-replay-probe",
+            "fragments": [{
+                "source_id": "authority/probe",
+                "content_base64": base64.b64encode(b"P5 shipped transition driver\n").decode("ascii"),
+                "expected_sha256": "63537df1a6cb0d80195a96757ab11d629e5b5e1f23be167218b84cb195b1c1d6",
+            }],
+        }
+        pending = request(socket_path, {
+            "action": "begin_verification",
+            "session_id": session_id,
+            "runtime_generation": 1,
+            "runtime": "pi",
+            "binding": binding,
+            "construction": construction_request,
+        })
+        if pending.get("ok") is not True or pending.get("state") != "PENDING_VERIFICATION":
+            raise AssertionError(f"shipped pending-delivery transition failed: {pending!r}")
+        challenge = pending.get("receipt_challenge")
+        receipt = pending.get("receipt")
+        if not isinstance(challenge, str) or not isinstance(receipt, str):
+            raise AssertionError(f"shipped broker did not mint a receipt challenge: {pending!r}")
+
+        # Promotion before observation/evidence/consumption is forbidden.
+        expect_refused(request(socket_path, {
+            "action": "promote_lease",
+            "session_id": session_id,
+            "runtime_generation": 1,
+            "receipt_challenge": challenge,
+        }), "INVALID_LEASE_TRANSITION")
+
+        observer_path.write_text(json.dumps({
+            "session_id": session_id,
+            "runtime_generation": 1,
+            "latest_assistant_message": receipt,
+        }), encoding="utf-8")
+        os.chmod(observer_path, 0o600)
+        observed = request(socket_path, {
+            "action": "observe_receipt",
+            "session_id": session_id,
+            "runtime_generation": 1,
+            "receipt_challenge": challenge,
+        })
+        if observed.get("ok") is not True or observed.get("state") != "PENDING_PROMOTION":
+            raise AssertionError(f"shipped evidence transition failed: {observed!r}")
+        durable = json.loads(state_path.read_text(encoding="utf-8"))
+        evidence = durable["tokens"][challenge].get("evidence")
+        if not isinstance(evidence, dict) or not isinstance(evidence.get("h_latest_assistant"), str):
+            raise AssertionError("shipped receipt evidence was not committed before consume/promote")
+
+        promoted = request(socket_path, {
+            "action": "promote_lease",
+            "session_id": session_id,
+            "runtime_generation": 1,
+            "receipt_challenge": challenge,
+        })
+        if promoted.get("ok") is not True or promoted.get("state") != "VERIFIED":
+            raise AssertionError(f"shipped consume-before-promote transition failed: {promoted!r}")
+
+        # T25/T28: the actual consumed challenge, re-presented through the
+        # shipped daemon, can neither be observed again nor re-promote/reopen.
+        expect_refused(request(socket_path, {
+            "action": "observe_receipt",
+            "session_id": session_id,
+            "runtime_generation": 1,
+            "receipt_challenge": challenge,
+        }), "RECEIPT_REPLAY")
+        expect_refused(request(socket_path, {
+            "action": "promote_lease",
+            "session_id": session_id,
+            "runtime_generation": 1,
+            "receipt_challenge": challenge,
+        }), "RECEIPT_REPLAY")
+        return challenge
+    finally:
+        if process.poll() is None:
+            process.terminate()
+            try:
+                process.wait(timeout=3.0)
+            except subprocess.TimeoutExpired:
+                process.kill()
+                process.wait()
+        shutil.rmtree(root, ignore_errors=True)
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--runs", type=int, default=3)
+    arguments = parser.parse_args()
+    if arguments.runs != 3:
+        raise SystemExit("P5 requires exactly three isolated runs")
+    challenges = [run_once(index) for index in range(arguments.runs)]
+    if len(set(challenges)) != arguments.runs:
+        raise AssertionError("separate shipped cycles did not mint unique challenges")
+    print("P5 receipt replay probe PASS: 3 isolated shipped-daemon runs")
+
+
+if __name__ == "__main__":
+    main()

docs/compaction-refresh/probes/p6_constrained_recovery.py

@@ -0,0 +1,255 @@
+#!/usr/bin/env python3
+"""P6 constrained-recovery probe; BUILT ONLY and Mos-gated.
+
+DO NOT self-fire. Under Mos authorization only:
+  python3 -I -S -B docs/compaction-refresh/probes/p6_constrained_recovery.py
+
+The default three isolated runs launch the shipped daemon plus its production
+observer transport on private sockets. The driver invokes the shipped recovery
+command and adapter gate identity; it never resets broker state, mocks promote,
+or taps a live model-output stream.
+"""
+
+from __future__ import annotations
+
+import argparse
+import base64
+import hashlib
+import importlib.util
+import json
+import os
+import shutil
+import socket
+import subprocess
+import sys
+import tempfile
+import time
+from pathlib import Path
+
+
+HERE = Path(__file__).resolve().parent
+REPOSITORY = HERE.parents[2]
+TOOLS = REPOSITORY / "packages/mosaic/framework/tools/lease-broker"
+DAEMON = TOOLS / "daemon.py"
+GATE = TOOLS / "mutator-gate.py"
+RECOVERY_COMMAND = TOOLS / "recover-context.py"
+OBSERVER_CLIENT = TOOLS / "receipt-observer-client.py"
+FRAGMENTS = TOOLS / "normative_fragments.py"
+CLAUDE_SETTINGS = REPOSITORY / "packages/mosaic/framework/runtime/claude/settings.json"
+PI_EXTENSION = REPOSITORY / "packages/mosaic/framework/runtime/pi/mosaic-extension.ts"
+
+
+def load_shipped_fragments():
+    spec = importlib.util.spec_from_file_location("p6_shipped_fragments", FRAGMENTS)
+    if spec is None or spec.loader is None:
+        raise RuntimeError("shipped normative construction unavailable")
+    module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(module)
+    return module
+
+
+def request(socket_path: Path, value: dict[str, object]) -> dict[str, object]:
+    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as connection:
+        connection.settimeout(3.0)
+        connection.connect(str(socket_path))
+        connection.sendall((json.dumps(value, separators=(",", ":")) + "\n").encode())
+        connection.shutdown(socket.SHUT_WR)
+        response = bytearray()
+        while True:
+            chunk = connection.recv(4096)
+            if not chunk:
+                break
+            response.extend(chunk)
+    if not response.endswith(b"\n") or response.count(b"\n") != 1:
+        raise AssertionError(f"unframed broker reply: {bytes(response)!r}")
+    reply = json.loads(response[:-1])
+    if not isinstance(reply, dict):
+        raise AssertionError("broker reply is not an object")
+    return reply
+
+
+def wait_ready(process: subprocess.Popen[str], socket_path: Path) -> None:
+    deadline = time.monotonic() + 5.0
+    while time.monotonic() < deadline:
+        if socket_path.exists():
+            return
+        if process.poll() is not None:
+            output = process.stdout.read() if process.stdout is not None else ""
+            raise RuntimeError(f"shipped daemon exited before READY: {output}")
+        time.sleep(0.02)
+    raise TimeoutError("shipped daemon did not create private probe socket")
+
+
+def run_json(command: list[str], environment: dict[str, str], input_value: object | None = None) -> dict[str, object]:
+    completed = subprocess.run(
+        command,
+        input=None if input_value is None else json.dumps(input_value),
+        text=True,
+        capture_output=True,
+        env=environment,
+        check=False,
+    )
+    if not completed.stdout.endswith("\n"):
+        raise AssertionError(f"command omitted framed result: {completed.stderr!r}")
+    reply = json.loads(completed.stdout)
+    if not isinstance(reply, dict):
+        raise AssertionError("command result is not an object")
+    return reply
+
+
+def gate_recovery(runtime: str, phase: str, environment: dict[str, str]) -> None:
+    command = [sys.executable, "-I", "-S", "-B", str(GATE), "--runtime", runtime]
+    if runtime == "claude":
+        command.extend(["--recovery-command", str(RECOVERY_COMMAND)])
+        recovery_invocation = (
+            f"python3 {RECOVERY_COMMAND} begin --construction /tmp/p6.json "
+            "--compaction-epoch 1 --request-epoch 1"
+            if phase == "begin"
+            else f"python3 {RECOVERY_COMMAND} complete"
+        )
+        value = {"tool_name": "Bash", "tool_input": {"command": recovery_invocation}}
+    else:
+        value = {"tool_name": "mosaic_context_recover"}
+    completed = subprocess.run(command, input=json.dumps(value), text=True, capture_output=True, env=environment, check=False)
+    if completed.returncode != 0:
+        raise AssertionError(f"{runtime} recovery invocation remained gated: {completed.stderr!r}")
+
+
+def record_production_observation(runtime: str, message: str, root: Path, environment: dict[str, str]) -> None:
+    command = [sys.executable, "-I", "-S", "-B", str(OBSERVER_CLIENT), "--runtime", runtime]
+    if runtime == "claude":
+        transcript = root / "claude-transcript.jsonl"
+        transcript.write_text(json.dumps({"message": {"role": "assistant", "content": message}}) + "\n", encoding="utf-8")
+        payload = {"transcript_path": str(transcript)}
+        command.append("--latest-entry")
+    else:
+        payload = {"latest_assistant_message": message}
+    completed = subprocess.run(command, input=json.dumps(payload), text=True, capture_output=True, env=environment, check=False)
+    if completed.returncode != 0:
+        raise AssertionError(f"{runtime} production observer transport refused: {completed.stderr!r}")
+
+
+def run_once(index: int, runtime: str) -> None:
+    # Parity guard: drive the shipped command and the repaired adapter/observer
+    # bytes, not a shadow receipt or promotion implementation.
+    recovery_source = RECOVERY_COMMAND.read_text(encoding="utf-8")
+    if '"action": "begin_recovery"' not in recovery_source or '"action": "complete_recovery"' not in recovery_source:
+        raise AssertionError("P6 parity guard: recovery command no longer drives shipped broker entrypoints")
+    gate_source = GATE.read_text(encoding="utf-8")
+    if "--recovery-command" not in CLAUDE_SETTINGS.read_text(encoding="utf-8"):
+        raise AssertionError("P6 parity guard: Claude recovery mapping is missing")
+    if "_SHELL_ACTIVE" not in gate_source or "argv[1] != str(recovery_command)" not in gate_source:
+        raise AssertionError("P6 parity guard: Claude mapping is not literal-only")
+    if "const RECOVERY_TOOL = 'mosaic_context_recover'" not in PI_EXTENSION.read_text(encoding="utf-8"):
+        raise AssertionError("P6 parity guard: Pi recovery tool mapping is missing")
+
+    fragments = load_shipped_fragments()
+    root = Path(tempfile.mkdtemp(prefix=f"mosaic-p6-recovery-{index}-"))
+    os.chmod(root, 0o700)
+    socket_path = root / "broker.sock"
+    observer_socket = root / "observer.sock"
+    state_path = root / "state.json"
+    construction_path = root / "construction.json"
+    content = b"P6 constrained recovery fixture\n"
+    construction = {
+        "manifest_version": 1,
+        "generator_version": "p6-constrained-recovery",
+        "fragments": [{
+            "source_id": "authority/p6",
+            "content_base64": base64.b64encode(content).decode("ascii"),
+            "expected_sha256": hashlib.sha256(content).hexdigest(),
+        }],
+    }
+    construction_path.write_text(json.dumps(construction), encoding="utf-8")
+    os.chmod(construction_path, 0o600)
+    process = subprocess.Popen(
+        [sys.executable, "-I", "-S", "-B", str(DAEMON), "--socket", str(socket_path),
+         "--state", str(state_path), "--observer-socket", str(observer_socket)],
+        stdin=subprocess.DEVNULL,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+        text=True,
+    )
+    try:
+        wait_ready(process, socket_path)
+        registered = request(socket_path, {"action": "register_anchor", "runtime_generation": 1})
+        session_id = registered.get("session_id")
+        if registered.get("ok") is not True or not isinstance(session_id, str):
+            raise AssertionError(f"broker anchor registration failed: {registered!r}")
+        built = fragments.build_payload_from_wire(construction)
+        normal = request(socket_path, {
+            "action": "begin_verification", "session_id": session_id, "runtime_generation": 1,
+            "runtime": runtime, "construction": construction,
+            "binding": {"compaction_epoch": index, "request_epoch": index + 100,
+                        "h_source": built.h_source, "h_payload": built.h_payload, "schema_version": 1},
+        })
+        normal_challenge = normal.get("receipt_challenge")
+        normal_receipt = normal.get("receipt")
+        if not isinstance(normal_challenge, str) or not isinstance(normal_receipt, str):
+            raise AssertionError("normal path did not mint a receipt challenge")
+        environment = {
+            **os.environ,
+            "MOSAIC_LEASE_BROKER_SOCKET": str(socket_path),
+            "MOSAIC_RECEIPT_OBSERVER_SOCKET": str(observer_socket),
+            "MOSAIC_LEASE_SESSION_ID": session_id,
+            "MOSAIC_RUNTIME_GENERATION": "1",
+            "MOSAIC_LEASE_RUNTIME": runtime,
+        }
+        gate_recovery(runtime, "begin", environment)
+        recovery = run_json([
+            sys.executable, "-I", "-S", "-B", str(RECOVERY_COMMAND), "begin", "--construction", str(construction_path),
+            "--compaction-epoch", str(index + 10), "--request-epoch", str(index + 110),
+        ], environment)
+        challenge = recovery.get("receipt_challenge")
+        receipt = recovery.get("receipt")
+        if recovery.get("state") != "PENDING_DELIVERY" or not isinstance(challenge, str) or not isinstance(receipt, str):
+            raise AssertionError(f"recovery command did not drive pending delivery: {recovery!r}")
+        if challenge == normal_challenge:
+            raise AssertionError("recovery reused a normal-path challenge")
+
+        # C4: production observer content is still exact-current-cycle only.
+        record_production_observation(runtime, normal_receipt, root, environment)
+        refused = run_json([sys.executable, "-I", "-S", "-B", str(RECOVERY_COMMAND), "complete"], environment)
+        if refused.get("ok") is not False or refused.get("code") != "RECEIPT_MISMATCH":
+            raise AssertionError(f"normal-path receipt replay was not refused: {refused!r}")
+
+        gate_recovery(runtime, "begin", environment)
+        recovery = run_json([
+            sys.executable, "-I", "-S", "-B", str(RECOVERY_COMMAND), "begin", "--construction", str(construction_path),
+            "--compaction-epoch", str(index + 20), "--request-epoch", str(index + 120),
+        ], environment)
+        receipt = recovery.get("receipt")
+        if recovery.get("state") != "PENDING_DELIVERY" or not isinstance(receipt, str):
+            raise AssertionError(f"fresh recovery retry did not pend: {recovery!r}")
+        record_production_observation(runtime, receipt, root, environment)
+        gate_recovery(runtime, "complete", environment)
+        promoted = run_json([sys.executable, "-I", "-S", "-B", str(RECOVERY_COMMAND), "complete"], environment)
+        if promoted.get("ok") is not True or promoted.get("state") != "VERIFIED":
+            raise AssertionError(f"recovery consume-before-promote failed: {promoted!r}")
+        replay = run_json([sys.executable, "-I", "-S", "-B", str(RECOVERY_COMMAND), "complete"], environment)
+        if replay.get("ok") is not False or replay.get("code") != "INVALID_LEASE_TRANSITION":
+            raise AssertionError(f"consumed recovery challenge re-promoted: {replay!r}")
+    finally:
+        if process.poll() is None:
+            process.terminate()
+            try:
+                process.wait(timeout=3.0)
+            except subprocess.TimeoutExpired:
+                process.kill()
+                process.wait()
+        shutil.rmtree(root, ignore_errors=True)
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--runs", type=int, default=3)
+    arguments = parser.parse_args()
+    if arguments.runs != 3:
+        raise SystemExit("P6 requires exactly three isolated runs")
+    for index, runtime in enumerate(("pi", "claude", "pi")):
+        run_once(index, runtime)
+    print("P6 constrained recovery probe PASS: 3 isolated shipped recovery-command runs")
+
+
+if __name__ == "__main__":
+    main()

docs/fleet/FLEET-CONFIG-DOCS-IA-CHECKLIST.md

@@ -5,28 +5,17 @@
 This checklist is an acceptance contract for documentation and examples. It does not authorize
 schema, runtime, systemd, role, profile, or live-fleet changes. An item is complete only when its
 named artifact exists, is linked from the fleet documentation entry point, and its evidence is
-recorded in the M0 task/PR.
+recorded in the M5 closure report and linked deferral evidence.
 
 ## M0 baseline acceptance
 
-- [ ] `docs/PRD.md` states the roster as desired-state SSOT; generated environment, systemd,
-      tmux, and heartbeat artifacts as non-authoritative projections; and fail-closed handling of
-      unsupported or quarantined legacy input.
-- [ ] `docs/PRD.md` defines the required classes and authority boundary: `validator` certifies but
-      does not merge; `merge-gate` remains sole approve-to-land/merge authority; `team-leader`
-      capacity is lease-bounded; `interaction` is request/status only; instance names such as Tess
-      and Ultron remain configurable.
-- [ ] `docs/PRD.md` defines local lifecycle semantics for `enabled`, persisted desired state, and
-      observed state, including stopped-state preservation through migration, apply, and reboot.
-- [ ] `docs/PRD.md` defines the generated-env/local-override boundary, explicitly denies arbitrary
-      command overrides in M1–M5, and requires key-name/hash-only quarantine diagnostics.
-- [ ] `docs/PRD.md` identifies the M1–M5 local-tmux scope and excludes remote reconciliation,
-      connector mutation, secret references, arbitrary commands/channels, gateway convergence, and
-      UI configuration storage.
-- [ ] `docs/TASKS.md` contains the complete M0–M5 one-card/one-PR dependency DAG for #758 with
-      agent tier, branch, dependency, estimate, and evidence expectations.
-- [ ] `docs/fleet/LEGACY-EXAMPLE-PROFILE-DISPOSITION-INVENTORY.md` classifies every current shipped
-      fleet example, profile, and service preset before M1 implementation starts.
+- [x] `docs/PRD.md` states the roster as desired-state SSOT; generated environment, systemd, tmux, and heartbeat artifacts as non-authoritative projections; and fail-closed handling of unsupported or quarantined legacy input.
+- [x] `docs/PRD.md` defines the required classes and authority boundary: `validator` certifies but does not merge; `merge-gate` remains sole approve-to-land/merge authority; `team-leader` capacity is lease-bounded; `interaction` is request/status only; instance names such as Tess and Ultron remain configurable.
+- [x] `docs/PRD.md` defines local lifecycle semantics for `enabled`, persisted desired state, and observed state, including stopped-state preservation through migration, apply, and reboot.
+- [x] `docs/PRD.md` defines the generated-env/local-override boundary, explicitly denies arbitrary command overrides in M1–M5, and requires key-name/hash-only quarantine diagnostics.
+- [x] `docs/PRD.md` identifies the M1–M5 local-tmux scope and excludes remote reconciliation, connector mutation, secret references, arbitrary commands/channels, gateway convergence, and UI configuration storage.
+- [x] `docs/TASKS.md` contains the complete M0–M5 one-card/one-PR dependency DAG for #758 with agent tier, branch, dependency, estimate, and evidence expectations.
+- [x] `docs/fleet/LEGACY-EXAMPLE-PROFILE-DISPOSITION-INVENTORY.md` classifies every current shipped fleet example, profile, and service preset before M1 implementation starts.
 
 ## Required documentation IA for M1–M5
 
@@ -72,15 +61,18 @@ recorded in the M0 task/PR.
 
 ## Cross-cutting evidence gates
 
-- [ ] Every retained or migrated YAML/JSON example, profile, and service preset validates through the
-      same executable schema and shared baseline-plus-`roles.local` resolver used by the CLI.
-- [ ] Every retired example/profile/service preset has a replacement link and deprecation note; no
-      unresolved legacy class or tool-policy alias remains silently shipped.
-- [ ] Documentation examples contain no secret values, arbitrary command override, or product-hardcoded
-      Tess/Ultron identity.
-- [ ] CLI snippets distinguish local fleet desired-state commands from the separate gateway-backed
-      `mosaic agent` catalog.
-- [ ] Migration, quarantine, lifecycle, status, and troubleshooting documentation state that values of
-      legacy sensitive keys are never printed.
-- [ ] M5 release review verifies links, schema/example validation, and that all checklist rows have
-      owner/evidence or an explicit approved deferral.
+- [x] Every retained or migrated YAML/JSON example, profile, and service preset validates through the same declared executable production parser/resolver path recorded by the disposition inventory; versioned v1 fixtures are not forced through the v2 compiler.
+- [x] Every retired example/profile/service preset has a replacement link and deprecation note; no unresolved legacy class or tool-policy alias remains silently shipped.
+- [x] Documentation examples contain no secret values, arbitrary command override, or product-hardcoded Tess/Ultron identity.
+- [x] CLI snippets distinguish local fleet desired-state commands from the separate gateway-backed mosaic agent catalog.
+- [x] Migration, quarantine, lifecycle, status, and troubleshooting documentation state that values of legacy sensitive keys are never printed.
+- [x] M5 documentation validation verifies required IA paths, local file and heading-fragment links, the canonical roster through the production compiler/resolver, and fenced/canonical-example safety checks.
+- [ ] FCM-M5-001 does not deterministically assert owner/evidence/deferral metadata for every checklist row. Closure and deferral reports provide human-reviewable evidence only; broader assertion coverage remains unclaimed.
+
+## Held downstream gates
+
+These unchecked items are intentionally outside FCM-M5-001 and are not authorized by this checklist:
+
+- [ ] FCM-M4-002 executes and evidences live cutover, canary, stopped-state preservation, and rollback.
+- [ ] FCM-M5-002 completes independent exact-head review and issues the validator certificate.
+- [ ] The exact PR head reaches terminal-green CI after independent review.

docs/fleet/FLEET-LAUNCH.md

@@ -8,11 +8,11 @@ Generated environment files are rebuildable projections, not an operator-editabl
 | Layer               | Responsibility                                                                                                                  |
 | ------------------- | ------------------------------------------------------------------------------------------------------------------------------- |
 | Roster              | `fleet/roster.yaml` supplies the agent name, class, supported runtime, model, reasoning, tool policy, workdir, and tmux socket. |
-| Projection writer   | Renders deterministic `fleet/agents/<name>.env.generated` from the roster.                                                      |
-| Optional local data | Reads a strict, data-only `fleet/agents/<name>.env.local`; it cannot shadow generated keys.                                     |
-| systemd             | Starts the launcher with `env -i` and fixed bootstrap data. It does not preload either environment file.                        |
+| Projection writer   | Renders deterministic fleet/agents/<name>.env.generated from the roster.                                                        |
+| Optional local data | Reads a strict, data-only fleet/agents/<name>.env.local; it cannot shadow generated keys.                                       |
+| systemd             | Starts the launcher with env -i and fixed bootstrap data. It does not preload either environment file.                          |
 | session launcher    | Validates generated and local data before it queries, creates, or stops an exact tmux session.                                  |
-| runtime launch      | Derives the fixed `mosaic yolo <runtime>` argument array from validated roster data, then seeds the runtime contract.           |
+| runtime launch      | Derives the fixed mosaic yolo <runtime> argument array from validated roster data, then seeds the runtime contract.             |
 
 The launcher never `source`s or `eval`s an environment file and never accepts an environment-supplied
 command. `MOSAIC_AGENT_COMMAND`, command/channel overrides, unknown keys, generated-key shadowing,
@@ -20,7 +20,7 @@ secret-like key names, duplicate keys, comments, quoted/export syntax, and unsaf
 
 ## Generated and local files
 
-`<name>.env.generated` is complete, deterministic, and written only by Mosaic. Its ordered keys are:
+<name>.env.generated is complete, deterministic, and written only by Mosaic. Its ordered keys are:
 
 ```dotenv
 MOSAIC_AGENT_NAME=<roster name>
@@ -33,12 +33,12 @@ MOSAIC_AGENT_WORKDIR=<absolute roster work directory>
 MOSAIC_TMUX_SOCKET=<roster socket or empty>
 ```
 
-The generated launch contract supports `claude`, `codex`, `opencode`, and `pi`. `mosaic fleet add`
+The generated launch contract supports `claude`, `codex`, `opencode`, and `pi`. mosaic fleet add
 rejects another runtime before it writes the roster or modifies generated, local, or quarantine state.
 The legacy dogfood stub remains an observability-only canary on its separate `mosaic-factory` socket;
 it has no generated-launch adapter and cannot be added through this path.
 
-`<name>.env.local` is optional and may contain only non-secret machine data:
+<name>.env.local is optional and may contain only non-secret machine data:
 
 - `MOSAIC_RUNTIME_BIN`
 - `MOSAIC_HEARTBEAT_RUN_DIR`
@@ -52,9 +52,9 @@ private, non-symlink paths. Violations fail closed before tmux interaction.
 
 ## Legacy input and diagnostics
 
-A legacy `<name>.env` is input only during projection generation. Roster-owned keys are regenerated;
+A legacy <name>.env is input only during projection generation. Roster-owned keys are regenerated;
 valid allowed local data can move to `.env.local`; invalid legacy input is privately retained at
-`<name>.env.quarantine`. Neither legacy nor quarantine files are launch authority.
+<name>.env.quarantine. Neither legacy nor quarantine files are launch authority.
 
 Diagnostics expose only rule code, key name, and a SHA-256 content hash. They do not reveal command
 text, credentials, or other values.
@@ -62,11 +62,11 @@ text, credentials, or other values.
 ## Launch and stop behavior
 
 The launcher obtains the agent's socket only from the validated generated projection. It creates or
-checks the exact `=<agent-name>` tmux target; it never uses an ambient socket or fuzzy session match.
+checks the exact =<agent-name> tmux target; it never uses an ambient socket or fuzzy session match.
 The same strict parser runs before exact-stop behavior. A fresh native Pi heartbeat remains authoritative;
 the shell sidecar only provides fallback state when the native marker is stale or absent.
 
-`mosaic agent comms-block <exact-member>` can inspect that exact roster member's resolved Fleet-Comms
+mosaic agent comms-block <exact-member> can inspect that exact roster member's resolved Fleet-Comms
 block. It is a read-only inspection tool and fails loudly for an unknown exact member or missing roster.
 On Linux, the installed roster, TOOLS contract, and executable helper are opened through a held
 descriptor chain rooted at `/`; every managed path component uses no-follow traversal, and content plus

docs/fleet/LEGACY-EXAMPLE-PROFILE-DISPOSITION-INVENTORY.md

@@ -14,7 +14,7 @@ parallel resolver. The current executable implementation and per-artifact outcom
 
 | Shipped file                                         | Current class evidence                                              | M0 disposition decision                                                                              | Required M1/M4 evidence                                              |
 | ---------------------------------------------------- | ------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------- |
-| `framework/fleet/examples/coding.yaml`               | `orchestrator`, `enhancer`, `implementer`, `reviewer`               | Migrate: `implementer → code`, `reviewer → review`; retain orchestration/enhancer intent             | v2 fixture validates; role aliases and authority matrix tested       |
+| `framework/fleet/examples/coding.yaml`               | `orchestrator`, `enhancer`, `implementer`, `reviewer`               | Migrate: implementer → code, reviewer → review; retain orchestration/enhancer intent                 | v2 fixture validates; role aliases and authority matrix tested       |
 | `framework/fleet/examples/general.yaml`              | `orchestrator`, `enhancer`, `worker`                                | Migrate only after operator chooses a concrete canonical role for `worker`; no implicit conversion   | Explicit replacement class, or versioned v1 fixture/retirement note  |
 | `framework/fleet/examples/hybrid.yaml`               | `orchestrator`, `enhancer`, `implementer`, `researcher`, `reviewer` | Migrate aliases; resolve `researcher` through existing role resolver or retain/version               | Shared resolver validation; no ad-hoc class scanner                  |
 | `framework/fleet/examples/local-canary.yaml`         | `orchestrator`, `implementer`, `reviewer`                           | Migrate aliases; preserve its local-tmux canary purpose                                              | v2 fixture validates and preserves safe stopped/running behavior     |
@@ -35,13 +35,13 @@ parallel resolver. The current executable implementation and per-artifact outcom
 ## Service presets
 
 | Shipped file                                         | Current policy evidence                                                                                                                                       | M0 disposition decision                                                                                                                                                                                                            | Required M1/M4 evidence                                                                                                                                                               |
-| ---------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `framework/fleet/services/operator-interaction.yaml` | Generic policy only: `runtime: pi`, `model: openai/gpt-5.6-sol`, `reasoning: high`, `tool_policy: operator-interaction`; provisioning supplies the agent name as data | Retain as a generic service policy, not a Tess identity. Migrate `tool_policy: operator-interaction` only through the approved interaction tool-policy alias/semantic resolver; do not infer a class or machine name from this file. | Service-policy fixture validates runtime/model/reasoning and alias behavior; generic provisioning proves a configured interaction instance is supplied without a hardcoded Tess name. |
+| ---------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `framework/fleet/services/operator-interaction.yaml` | Generic policy only: runtime: pi, model: openai/gpt-5.6-sol, reasoning: high, tool_policy: operator-interaction; provisioning supplies the agent name as data | Retain as a generic service policy, not a Tess identity. Migrate tool_policy: operator-interaction only through the approved interaction tool-policy alias/semantic resolver; do not infer a class or machine name from this file. | Service-policy fixture validates runtime/model/reasoning and alias behavior; generic provisioning proves a configured interaction instance is supplied without a hardcoded Tess name. |
 
 ## Required disposition controls
 
-1. **No silent aliasing:** only `implementer → code`, `reviewer → review`, and
-   `operator-interaction → interaction` are approved deterministic aliases in this M0 baseline.
+1. **No silent aliasing:** only implementer → code, reviewer → review, and
+   operator-interaction → interaction are approved deterministic aliases in this M0 baseline.
    `worker`, `analyst`, `canary`, and domain-specific classes require resolver evidence or an
    explicit version/retirement decision.
 2. **No identity hardcoding:** Tess and Ultron are optional instance/display names. An example/profile

docs/fleet/NORTH_STAR.md

@@ -33,7 +33,7 @@ The Mosaic Backlog is the backlog of record + dispatch engine, built on Mosaic's
 - **AC-NS-4** — TTL is enforced on claims; token caps remain advisory until a real meter exists.
 - **AC-NS-5** — Flipping fleet/run/PAUSED halts dispatch and merges within one tick.
 - **AC-NS-6** — A user can declare a system type and the fleet provisions the matching persona roster + topology from the baseline library, with no code change.
-- **AC-NS-7** — A user-customized persona (edited or added via the orchestrator) survives `mosaic update`: baseline reseed never clobbers user overrides.
+- **AC-NS-7** — A user-customized persona (edited or added via the orchestrator) survives mosaic update: baseline reseed never clobbers user overrides.
 
 ## Workstreams
 

docs/fleet/NORTH_STAR.yaml

@@ -97,7 +97,7 @@ success_criteria:
   - id: AC-NS-7
     text: >-
       A user-customized persona (edited or added via the orchestrator) survives
-      `mosaic update`: baseline reseed never clobbers user overrides.
+      mosaic update: baseline reseed never clobbers user overrides.
 
 workstreams:
   - id: A

docs/fleet/PRD-fleet-suite.md

@@ -8,7 +8,7 @@
 ## Mission
 
 Turn the proven fleet primitives into a **user-installable, AI-free-configurable fleet product**:
-a user runs `mosaic fleet init`, answers a few questions (general / coding / research / hybrid),
+a user runs mosaic fleet init, answers a few questions (general / coding / research / hybrid),
 gets a recommended set of agents plus one always-on orchestrator wired for chat-ops, and can
 operate, mutate, re-create, and observe the fleet — over tmux today and Matrix tomorrow — from
 CLI/TUI and (designed-for) the webUI.
@@ -22,9 +22,9 @@ functional, we use the fleet itself to continue the work.
 ### A. Configure-without-AI CLI
 
 | ID  | Requirement                                                                                                 |
-| --- | ------------------------------------------------------------------------------------------------------------- |
-| R1  | `mosaic fleet` command set is functional end-to-end (init/install/start/stop/status/ps/verify + agent verbs). |
-| R2  | `mosaic fleet init` is an interactive, **AI-free** CLI wizard.                                                |
+| --- | ----------------------------------------------------------------------------------------------------------- |
+| R1  | mosaic fleet command set is functional end-to-end (init/install/start/stop/status/ps/verify + agent verbs). |
+| R2  | mosaic fleet init is an interactive, **AI-free** CLI wizard.                                                |
 | R3  | Init asks the **configuration type**: `general`, `coding`, `research`, `hybrid`, … (extensible).            |
 | R4  | Based on the answer, the fleet is populated with a **recommended set of agents** (a preset).                |
 | R5  | **Exactly one main orchestrator agent** is always configured, regardless of type.                           |
@@ -35,11 +35,11 @@ functional, we use the fleet itself to continue the work.
 ### B. Comms & orchestrator chat-ops
 
 | ID  | Requirement                                                                                                                   |
-| --- | --------------------------------------------------------------------------------------------------------------------------------- |
+| --- | ----------------------------------------------------------------------------------------------------------------------------- |
 | R6  | Init can wire the orchestrator to a chat connector — **Telegram / Discord / Matrix / Slack** — for command + comms.           |
 | R7  | Designed with the end-goal of **Matrix comms on a locally-controlled server**.                                                |
 | R16 | Fleet supports **tmux AND Matrix** comms, **user-configurable** at init or any time. Not all users want Matrix.               |
-| R19 | **"Mos" orchestrator on Discord** (`chan 1517622518662434996` / `srv 1112631390438166618`) on `w-jarvis` — the first live target. |
+| R19 | **"Mos" orchestrator on Discord** (chan 1517622518662434996 / srv 1112631390438166618) on `w-jarvis` — the first live target. |
 
 ### C. Runtime, health, lifecycle
 
@@ -64,15 +64,15 @@ functional, we use the fleet itself to continue the work.
 - **Orchestrator agent:** always present; carries the chat connector config (connector type + target IDs) so it can be commanded over chat. tmux is the substrate; the connector bridges chat ↔ the orchestrator session.
 - **Comms layers (R16):** (1) **tmux** inter-agent (`agent-send`, proven) — default, always available. (2) **chat connector** for human↔orchestrator (Discord now; Matrix the strategic target). (3) **Matrix** as the locally-controlled cross-agent bus (future). Connector is pluggable + reconfigurable.
 - **Heartbeat (R15):** runtime-agnostic launcher sidecar already covers pi/claude/codex (#584). Refine per-runtime (native HB) with the **custom Pi harness** (R14) + a Claude path.
-- **Updates (R13):** `mosaic update` (CLI) + a fleet-aware harness-update step that refreshes pi/claude/codex and re-launches agents safely (drain → update → relaunch via the durable launcher).
-- **webUI (R18):** the fleet exposes machine-readable state (`fleet ps --json` already carries tenant/host/heartbeat/managed) + control verbs (start/stop/watch/send); webUI consumes these (control plane rides federation per north star). Ensure a stable JSON contract + a terminate/attach(butt-in) path.
+- **Updates (R13):** mosaic update (CLI) + a fleet-aware harness-update step that refreshes pi/claude/codex and re-launches agents safely (drain → update → relaunch via the durable launcher).
+- **webUI (R18):** the fleet exposes machine-readable state (fleet ps --json already carries tenant/host/heartbeat/managed) + control verbs (start/stop/watch/send); webUI consumes these (control plane rides federation per north star). Ensure a stable JSON contract + a terminate/attach(butt-in) path.
 
 ## Phases (incremental, each shippable)
 
 | Phase                             | Deliverable                                                                                                                       | Notes                                 |
-| --------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------- |
-| **F1 Presets + init wizard**      | preset rosters (general/coding/research/hybrid) + always-orchestrator + AI-free `fleet init` selecting a preset; re-init idempotent | R1–R5, R8, R10, R17                   |
-| **F2 Connector + Mos-on-Discord** | orchestrator chat-connector config (Discord first) + **Mos live on Discord `1517…`/`1112…`** on w-jarvis                            | R6, R19, partial R16                  |
+| --------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------- |
+| **F1 Presets + init wizard**      | preset rosters (general/coding/research/hybrid) + always-orchestrator + AI-free fleet init selecting a preset; re-init idempotent | R1–R5, R8, R10, R17                   |
+| **F2 Connector + Mos-on-Discord** | orchestrator chat-connector config (Discord first) + **Mos live on Discord 1517…/1112…** on w-jarvis                              | R6, R19, partial R16                  |
 | **F3 Heartbeat + harness**        | HB confirmed for claude + pi/gpt; **custom Pi harness** (tool usage, native HB, model self-report); graceful harness updates      | R13, R14, R15                         |
 | **F4 Matrix + comms toggle**      | Matrix connector (local server) + user toggle tmux/Matrix at init/anytime                                                         | R7, R16                               |
 | **F5 Orchestrator-mutable fleet** | orchestrator can add/remove agents at runtime                                                                                     | R9                                    |
@@ -82,28 +82,28 @@ functional, we use the fleet itself to continue the work.
 ## Work division (proposed — confirm with dragon-lin)
 
 - **Jarvis @ w-jarvis (Lead):** F1 presets+wizard, F2 connector+Mos-on-Discord, F5 mutability, F6 webUI hooks; merge authority + dual-engine reviews; co-testing on w-jarvis.
-- **coder @ dragon-lin:** F3 custom Pi harness + harness-update flow (pi/codex-savvy); plus its in-flight constitution P4–P6 (P4 installer rework underpins `fleet init`/updates — coordinate the install path). Co-testing on dragon-lin (R11).
+- **coder @ dragon-lin:** F3 custom Pi harness + harness-update flow (pi/codex-savvy); plus its in-flight constitution P4–P6 (P4 installer rework underpins fleet init/updates — coordinate the install path). Co-testing on dragon-lin (R11).
 - **Shared:** F4 Matrix (whoever has bandwidth); F7 testing/docs continuous.
 
 ## Immediate target: Mos on Discord (F2 first slice)
 
-The discord plugin is available (`~/.claude.json`). Path: configure the **orchestrator** as a durable
+The discord plugin is available (~/.claude.json). Path: configure the **orchestrator** as a durable
 fleet session running Claude Code with the discord plugin bridged to channel `1517622518662434996`
 (server `1112631390438166618`) on w-jarvis, with the existing Discord Bridge Protocol (ack within
 ~3s, reply via `mcp__discord__reply`, no `AskUserQuestion`). Heartbeat via the launcher sidecar.
 
 ## Success criteria
 
-- A non-AI user can `mosaic fleet init`, pick a type, and get a working fleet + orchestrator.
-- **Mos answers in Discord `1517…`** on w-jarvis.
-- Fleet runs + is observable (`fleet ps`) on **both** w-jarvis and dragon-lin.
+- A non-AI user can mosaic fleet init, pick a type, and get a working fleet + orchestrator.
+- **Mos answers in Discord 1517…** on w-jarvis.
+- Fleet runs + is observable (fleet ps) on **both** w-jarvis and dragon-lin.
 - Harness updates handled gracefully; HB healthy for claude + pi/gpt agents.
 - Docs let a new operator install/configure/use the fleet.
 - Re-init + orchestrator mutation work.
 
 ## Assumptions (veto-able)
 
-- `ASSUMPTION:` presets ship as example rosters under the framework (`fleet/examples/*.yaml`), selected by `init`.
+- `ASSUMPTION:` presets ship as example rosters under the framework (fleet/examples/\*.yaml), selected by `init`.
 - `ASSUMPTION:` chat connectors are pluggable; Discord first (target exists), Matrix is the strategic default later.
 - `ASSUMPTION:` "Mos" = a Claude Code orchestrator session with the discord plugin (reuses the documented Discord Bridge Protocol).
 - `ASSUMPTION:` per north star, runtimes default to Codex/pi-on-Codex for workers; the orchestrator "Mos" runs Claude Code (in Claude Code, which is allowed).

docs/fleet/PRD.md

@@ -10,8 +10,8 @@
 The durable tmux fleet runs on the isolated `mosaic-fleet` socket. That isolation
 (which protects the operator's default tmux) makes the fleet **invisible** to default
 tooling, and truth is split across three planes no single command joins — systemd
-(`systemctl --user`), tmux (`-L mosaic-fleet`), and the process tree (`pstree`).
-`agent tail` (`capture-pane`) returns **blank for full-screen TUIs**, and `agent send`
+(systemctl --user), tmux (-L mosaic-fleet), and the process tree (`pstree`).
+agent tail (`capture-pane`) returns **blank for full-screen TUIs**, and agent send
 confirms only keystroke injection, not acceptance. Net: the operator has near-zero
 observability and no safe way to watch a session.
 
@@ -33,21 +33,21 @@ observability and no safe way to watch a session.
 ## Functional requirements
 
 | ID   | Requirement                                                                                                                                                                                                                                                                                                  |
-| ---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| FR-1 | `mosaic fleet ps [--json]` prints one row per roster agent joining: name · tenant · host · runtime · systemd(active/enabled) · pane(alive/dead) · pid · idle · **last-heartbeat age** · **drift** flag (roster runtime ≠ actual pane command) · **boot-enable** warning (active but `UnitFileState=disabled`). |
-| FR-2 | **Heartbeat protocol v1** (see below); `dogfood-agent.py` implements the responder. `fleet ps` issues probes (or reads last-seen) and reports health per FR-1.                                                                                                                                                 |
-| FR-3 | `mosaic agent watch <name>` opens a **read-only** view of the pane (grouped session or `tmux attach -r`) that cannot send keystrokes and does not shrink the agent's window.                                                                                                                                   |
-| FR-4 | `mosaic agent attach <name>` remains the **explicit** interactive-takeover path (separate verb, documented as the only one that can type).                                                                                                                                                                     |
-| FR-5 | `mosaic agent send <name> --verify` confirms the message was **accepted** (not left as an unsubmitted draft) and returns non-zero if delivery cannot be verified.                                                                                                                                              |
+| ---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| FR-1 | mosaic fleet ps [--json] prints one row per roster agent joining: name · tenant · host · runtime · systemd(active/enabled) · pane(alive/dead) · pid · idle · **last-heartbeat age** · **drift** flag (roster runtime ≠ actual pane command) · **boot-enable** warning (active but `UnitFileState=disabled`). |
+| FR-2 | **Heartbeat protocol v1** (see below); `dogfood-agent.py` implements the responder. fleet ps issues probes (or reads last-seen) and reports health per FR-1.                                                                                                                                                 |
+| FR-3 | mosaic agent watch <name> opens a **read-only** view of the pane (grouped session or tmux attach -r) that cannot send keystrokes and does not shrink the agent's window.                                                                                                                                     |
+| FR-4 | mosaic agent attach <name> remains the **explicit** interactive-takeover path (separate verb, documented as the only one that can type).                                                                                                                                                                     |
+| FR-5 | mosaic agent send <name> --verify confirms the message was **accepted** (not left as an unsubmitted draft) and returns non-zero if delivery cannot be verified.                                                                                                                                              |
 | FR-6 | All structured output (`--json`) includes `tenant_id` and `host` fields.                                                                                                                                                                                                                                     |
 
 ## Heartbeat protocol v1
 
-- **Probe:** operator/`fleet ps` writes a sentinel line to the agent's input or a
-  well-known per-agent heartbeat file path `~/.config/mosaic/fleet/run/<agent>.hb`.
-- **Response:** the runtime updates `<agent>.hb` with `ts=<iso8601> pid=<pid> status=<ok|busy>`
+- **Probe:** operator/fleet ps writes a sentinel line to the agent's input or a
+  well-known per-agent heartbeat file path ~/.config/mosaic/fleet/run/<agent>.hb.
+- **Response:** the runtime updates <agent>.hb with ts=<iso8601> pid=<pid> status=<ok|busy>
   on a fixed interval (default 15s) and on demand when probed.
-- **Health rule:** `healthy` if `now - ts <= 3 × interval`; else `stale`; missing file = `unknown`.
+- **Health rule:** `healthy` if now - ts <= 3 × interval; else `stale`; missing file = `unknown`.
 - **Contract:** every runtime (dogfood stub now; claude/codex/pi/opencode in Phase 3)
   MUST emit the heartbeat. The protocol is file-based so it works for headless stubs and
   full-screen TUIs alike (no `capture-pane` dependency).
@@ -56,15 +56,15 @@ observability and no safe way to watch a session.
 
 ## Acceptance criteria
 
-- `mosaic fleet ps` shows all 5 live sessions on `mosaic-fleet` with correct
+- mosaic fleet ps shows all 5 live sessions on `mosaic-fleet` with correct
   pane/pid/idle and flags the dogfood **drift** (`canary-pi` runtime=pi but pane runs
   `dogfood-agent.py`) and the **boot-enable** gap (active but disabled).
 - Killing one agent's pane flips its row to dead/stale within one `interval`.
-- `agent watch` shows live output and provably cannot type into the pane; detaching
+- agent watch shows live output and provably cannot type into the pane; detaching
   leaves the agent's window size unchanged.
-- `agent send --verify` returns success on an accepting pane and non-zero on a wedged/draft pane.
-- Quality gates green: `pnpm typecheck`, `pnpm lint`, `pnpm format:check`, plus
-  `pnpm --filter @mosaicstack/mosaic test`.
+- agent send --verify returns success on an accepting pane and non-zero on a wedged/draft pane.
+- Quality gates green: pnpm typecheck, pnpm lint, pnpm format:check, plus
+  pnpm --filter @mosaicstack/mosaic test.
 - Independent review passed; dogfood evidence captured against the live fleet.
 
 ## Test plan
@@ -72,18 +72,18 @@ observability and no safe way to watch a session.
 - Unit/CLI specs in `packages/mosaic/src/commands/fleet.spec.ts` (and a new
   `fleet-ps`/`watch`/`send-verify` spec) using the injected `CommandRunner` to assert
   exact tmux/systemd command construction and JSON shape (tenant+host present).
-- Situational: run against the live `mosaic-fleet` fleet; capture `fleet ps` output,
-  a kill-and-detect cycle, a read-only `watch`, and a `send --verify` pass/fail pair.
+- Situational: run against the live `mosaic-fleet` fleet; capture fleet ps output,
+  a kill-and-detect cycle, a read-only `watch`, and a send --verify pass/fail pair.
 
 ## Known limitations
 
-- **Verify heuristic is best-effort:** `agent send --verify` uses a `>` -prefix draft
+- **Verify heuristic is best-effort:** agent send --verify uses a > -prefix draft
   heuristic that is specific to pi/claude TUIs. Draft detection for codex and opencode
   TUIs is best-effort only; those runtimes may not use the same input-line indicator.
 - **Pane-change check is the best Phase-2 signal; verify now polls up to a bounded
-  timeout:** `agent send --verify` captures a BEFORE snapshot, sends the message, then
+  timeout:** agent send --verify captures a BEFORE snapshot, sends the message, then
   polls `capture-pane` every ~400 ms up to a configurable total timeout (default ~6 s,
-  controlled by `--verify-timeout <ms>`). On each poll it runs classifySendResult: if
+  controlled by --verify-timeout <ms>). On each poll it runs classifySendResult: if
   the pane shows 'accepted' or 'draft' the loop exits immediately; while the result is
   'unverifiable' (no pane change yet) it keeps polling. After the timeout with no
   definitive result, it fails closed: exit 1 with "no pane change after send". This
@@ -92,15 +92,15 @@ observability and no safe way to watch a session.
   requires a runtime acknowledgement (Phase-3 heartbeat-ack); the bounded pane-change
   poll is the best signal available against an opaque TUI for Phase-2.
 - **Blank AFTER capture fails closed:** Full-screen TUIs (claude, codex, opencode, pi)
-  render blank for `tmux capture-pane`. When the AFTER snapshot is empty, `send --verify`
+  render blank for tmux capture-pane. When the AFTER snapshot is empty, send --verify
   returns non-zero with an "unverifiable" message rather than silently succeeding. This
   is an intentional fail-closed design (FR-5).
-- **`agent watch` uses a grouped viewer session:** `tmux attach -r` directly against the
-  agent session lets the viewer terminal shrink the agent's window. `agent watch` instead
-  creates a throwaway grouped session (`tmux new-session -d -t '=<agent>' -s
-'<agent>-watch-<pid>'`), attaches read-only to that session, and kills it on detach.
+- **agent watch uses a grouped viewer session:** tmux attach -r directly against the
+  agent session lets the viewer terminal shrink the agent's window. agent watch instead
+  creates a throwaway grouped session (tmux new-session -d -t '=<agent>' -s
+  '<agent>-watch-<pid>'), attaches read-only to that session, and kills it on detach.
   The grouped session shares the agent's windows but has independent sizing, so the
-  agent's window is never affected. `tmux attach` is still interactive and requires
+  agent's window is never affected. tmux attach is still interactive and requires
   inherited stdio; the `interactiveRunner` handles TTY passthrough.
 
 ## Surfaces & parity (MVP-X1)

docs/fleet/README.md

@@ -0,0 +1,63 @@
+# Fleet Configuration Management
+
+This book documents the local roster-v2 desired-state control plane delivered under issue #758. The normative requirements are the [FCM section of the repository PRD](../PRD.md#fleet-declarative-configuration-management-workstream-fcm-758), not the older fleet-suite or observability planning pages.
+
+## Authority boundary
+
+<MOSAIC_HOME>/fleet/roster.yaml is the sole writable desired-state authority for local fleet membership, launch policy, and persisted lifecycle. Generated environment files, systemd enablement, tmux sessions, heartbeat files, and status output are derived or observed. Rebuild projections from the roster; never edit them as desired state.
+
+This control plane is local tmux/systemd only. Remote/SSH entries and connectors are inventory, not reconciliation targets. Arbitrary commands, channels, secret references, gateway catalog convergence, and UI configuration storage are outside this workstream. `mos-comms` is temporary transport glue, not permanent fleet architecture.
+
+## Choose the right workflow
+
+1. **Need to inspect intent?** Read the roster and use mosaic fleet get; see [desired versus observed state](concepts/desired-vs-observed-state.md).
+2. **Need to inspect reality?** Use `status` or `doctor`; use `verify` for a strict non-zero drift/ownership gate. These commands do not repair anything.
+3. **Need to change membership or persisted policy?** Use generation-guarded `plan`, `create`, `update`, or `delete`; see [safe CRUD](how-to/create-update-delete-agent.md).
+4. **Need a one-time runtime action?** Use `start`, `stop`, or `restart`. These do not change persisted desired state.
+5. **Need convergence?** Review apply --dry-run, resolve blockers, then use `apply` with the same current generation; see [reconcile and recover](operations/reconcile-and-recover.md).
+6. **Need v1 migration evidence?** Use preview only. Cutover, canary, and rollback remain held for FCM-M4-002.
+7. **Need the gateway-backed agent catalog?** That is the separate mosaic agent surface, not local fleet desired state.
+
+## Concepts
+
+- [Desired versus observed state](concepts/desired-vs-observed-state.md)
+- [Identity, class, runtime, provider, and model](concepts/identity-class-runtime.md)
+- [Role authority and leases](concepts/role-authority-and-leases.md)
+- [Generated environment launch chain](concepts/generated-env-launch-chain.md)
+
+## Operator how-to
+
+- [Create, inspect, update, and delete](how-to/create-update-delete-agent.md)
+- [Start, stop, restart, and reconcile](how-to/start-stop-restart.md)
+- [Configure an interaction instance](how-to/configure-tess-interaction.md)
+- [Configure a validator instance](how-to/configure-ultron-validator.md)
+- [Customize roles](how-to/customize-roles.md)
+
+## Operations and recovery
+
+- [Reconcile and recover](operations/reconcile-and-recover.md)
+- [Environment quarantine](operations/env-quarantine.md)
+- [Systemd/tmux troubleshooting](operations/systemd-tmux-troubleshooting.md)
+- [Backup and restore boundary](operations/backup-restore.md)
+- [Upgrade and asset-drift hold](operations/upgrade-assets.md)
+
+## Reference and migration
+
+- [Roster v2 fields](reference/roster-v2-fields.md) · [executable JSON Schema](reference/roster-v2.schema.json) · [validated example](examples/roster-v2.yaml)
+- [CLI and exit codes](reference/cli.md)
+- [Role classes](reference/role-classes.md)
+- [Lifecycle transitions](reference/lifecycle-transitions.md)
+- [Status and drift](reference/status-and-drift.md)
+- [Generated environment boundary](reference/generated-env-boundary.md)
+- [v1-to-v2 preview](migration/v1-to-v2.md)
+- [Example/profile dispositions](migration/example-profile-disposition.md)
+- [Legacy class aliases](migration/legacy-class-aliases.md)
+
+## Acceptance evidence and holds
+
+- [M0/M5 IA checklist](FLEET-CONFIG-DOCS-IA-CHECKLIST.md)
+- [Legacy example/profile inventory](LEGACY-EXAMPLE-PROFILE-DISPOSITION-INVENTORY.md)
+- [M5 closure evidence](../reports/documentation/758-fleet-config-ia-closure.md)
+- [Approved-existing deferrals and live-action holds](../reports/deferred/758-fleet-config-deferrals.md)
+
+The canonical publishing source remains this repository. This card does not publish externally, run a migration, operate a live fleet, or close parent issue #758.

docs/fleet/TASKS.md

@@ -8,13 +8,13 @@
 > Status: `not-started` | `in-progress` | `done` | `blocked` | `failed`
 
 | id            | status      | description                                                                                                      | depends_on            | agent       | pr  | notes                                                                                                                       |
-| ------------- | ----------- | ------------------------------------------------------------------------------------------------------------------ | --------------------- | ----------- | --- | --------------------------------------------------------------------------------------------------------------------------- |
+| ------------- | ----------- | ---------------------------------------------------------------------------------------------------------------- | --------------------- | ----------- | --- | --------------------------------------------------------------------------------------------------------------------------- |
 | FLEET-OBS-000 | done        | Plan: north-star + Phase-2 PRD + workstream scaffolding                                                          | —                     | lead        | —   | persisted 2026-06-20 on `feat/fleet-observability`                                                                          |
-| FLEET-OBS-001 | done        | Heartbeat protocol v1 spec finalized in PRD + framework doc                                                        | FLEET-OBS-000         | lead        | —   | file-based `~/.config/mosaic/fleet/run/<agent>.hb`; spec in PRD                                                             |
-| FLEET-OBS-002 | in-progress | Implement heartbeat responder in `dogfood-agent.py`                                                                | FLEET-OBS-001         | fleet-coder | —   | dispatched to ad-hoc `mosaic yolo` fleet agent (dogfood)                                                                    |
-| FLEET-OBS-003 | done        | `mosaic fleet ps` — join systemd+tmux+proc+idle+heartbeat; tenant+host tagged; drift + boot-enable flags; `--json` | FLEET-OBS-001         | worker      | —   | commit ab47831; LIVE-verified on mosaic-fleet; caught canary-pi DRIFT + BOOT-ENABLE. Polish: idleSeconds parse returns null |
-| FLEET-OBS-004 | done        | `mosaic agent watch <name>` — read-only join (no resize, no keystrokes)                                            | FLEET-OBS-000         | worker      | —   | `attach -r`; verb wired                                                                                                     |
-| FLEET-OBS-005 | done        | `mosaic agent send --verify` — delivery/acceptance receipt                                                         | FLEET-OBS-000         | worker      | —   | --verify flag; draft-heuristic verify                                                                                       |
+| FLEET-OBS-001 | done        | Heartbeat protocol v1 spec finalized in PRD + framework doc                                                      | FLEET-OBS-000         | lead        | —   | file-based ~/.config/mosaic/fleet/run/<agent>.hb; spec in PRD                                                               |
+| FLEET-OBS-002 | in-progress | Implement heartbeat responder in `dogfood-agent.py`                                                              | FLEET-OBS-001         | fleet-coder | —   | dispatched to ad-hoc mosaic yolo fleet agent (dogfood)                                                                      |
+| FLEET-OBS-003 | done        | mosaic fleet ps — join systemd+tmux+proc+idle+heartbeat; tenant+host tagged; drift + boot-enable flags; `--json` | FLEET-OBS-001         | worker      | —   | commit ab47831; LIVE-verified on mosaic-fleet; caught canary-pi DRIFT + BOOT-ENABLE. Polish: idleSeconds parse returns null |
+| FLEET-OBS-004 | done        | mosaic agent watch <name> — read-only join (no resize, no keystrokes)                                            | FLEET-OBS-000         | worker      | —   | attach -r; verb wired                                                                                                       |
+| FLEET-OBS-005 | done        | mosaic agent send --verify — delivery/acceptance receipt                                                         | FLEET-OBS-000         | worker      | —   | --verify flag; draft-heuristic verify                                                                                       |
 | FLEET-OBS-006 | done        | CLI specs for ps/watch/send-verify (tenant+host shape, command construction)                                     | FLEET-OBS-003,004,005 | worker      | —   | 62 tests green (31 new); re-verified by lead                                                                                |
 | FLEET-OBS-007 | not-started | Framework doc: fleet observability guide + verbs                                                                 | FLEET-OBS-003,004,005 | lead        | —   | `docs/guides/` or `framework/tools/.../README`                                                                              |
 | FLEET-OBS-008 | not-started | Independent review + dogfood verification on live fleet                                                          | FLEET-OBS-002..007    | reviewer    | —   | author ≠ reviewer; capture evidence in scratchpad                                                                           |
@@ -22,6 +22,6 @@
 
 ## Proposed MVP rollup row (for the MVP orchestrator — not written by this workstream)
 
-```
+```text-table
 | W-FLEET | in-progress | Fleet (agent-session execution layer) | Phase 2/5 | docs/fleet/TASKS.md | observability dogfooded on live stub fleet; control plane rides federation (W1) |
 ```

docs/fleet/backlog-conventions.md

@@ -2,10 +2,10 @@
 
 The **backlog** is Mosaic's native backlog-of-record for fleet work. It is built
 end-to-end on Mosaic's own storage layer (`@mosaicstack/db`, drizzle/Postgres)
-and surfaced as `mosaic fleet backlog <sub> --json`.
+and surfaced as mosaic fleet backlog <sub> --json.
 
 > **Mosaic-native, no Hermes.** This backlog REPLACES the former Hermes adapter.
-> There is **no** runtime dependency on Hermes, `hermes kanban`, or `~/.hermes`
+> There is **no** runtime dependency on Hermes, hermes kanban, or ~/.hermes
 > anywhere in this feature. Anything previously delegated to Hermes is recreated
 > here on Mosaic's own Postgres storage layer.
 
@@ -18,7 +18,7 @@ engine (no sqlite, no raw client).
 | ---------------------------------- | -------------------- | ---------------------------------------------------------------- |
 | `DATABASE_URL` injected at runtime | Full server Postgres | the verified runtime database; it never authorizes migration/DDL |
 | `PGLITE_DATA_DIR` set (no URL)     | Embedded PGlite      | that directory                                                   |
-| neither (default)                  | Embedded PGlite      | `~/.config/mosaic/fleet/backlog`                                 |
+| neither (default)                  | Embedded PGlite      | ~/.config/mosaic/fleet/backlog                                   |
 
 PGlite is real Postgres semantics in-process — including the row locks the atomic
 claim relies on — so the **same code** runs on a laptop (embedded, single-host
@@ -28,9 +28,9 @@ For embedded PGlite only, the local backlog routine may prepare its local schema
 
 ### Update safety
 
-The embedded PGlite store lives under `~/.config/mosaic/fleet/backlog`, which is
+The embedded PGlite store lives under ~/.config/mosaic/fleet/backlog, which is
 listed in `PRESERVE_PATHS` in `packages/mosaic/framework/install.sh`. This means
-`mosaic update` (which runs the framework sync with `rsync --delete`) will **not**
+mosaic update (which runs the framework sync with rsync --delete) will **not**
 wipe the operator's backlog — same protection as the roster, per-agent env, and
 heartbeat run dir.
 
@@ -46,10 +46,10 @@ A card is one row in the `backlog` table:
 | `phase`             | text (nullable)     | Board/phase grouping (see below).                             |
 | `priority`          | int (default 0)     | **Higher = sooner.** Claim picks the max-priority ready card. |
 | `status`            | enum                | `ready` \| `claimed` \| `blocked` \| `done`.                  |
-| `depends_on`        | jsonb `string[]`    | DAG edges — ids of cards this one depends on.                 |
+| `depends_on`        | jsonb string[]      | DAG edges — ids of cards this one depends on.                 |
 | `claim_owner`       | text (nullable)     | Owner token of the active claim.                              |
 | `claim_ttl_seconds` | int (nullable)      | TTL of the active claim.                                      |
-| `claimed_at`        | timestamptz (null)  | When the claim was taken. `claimed_at + ttl` = expiry.        |
+| `claimed_at`        | timestamptz (null)  | When the claim was taken. claimed_at + ttl = expiry.          |
 | `attempts`          | int (default 0)     | Incremented each time the card is claimed.                    |
 | `idempotency_key`   | text (unique, null) | Dedups `create`; NULLs are distinct in Postgres.              |
 | `acceptance`        | jsonb (nullable)    | Acceptance criteria (array of strings or object).             |
@@ -65,12 +65,12 @@ would add ceremony without benefit.
 ### Board / phase convention
 
 `phase` is a free-form grouping string used as the board column / milestone label
-(e.g. `M1`, `fleet`, `infra`). `list --phase <phase>` filters to one board lane.
+(e.g. `M1`, `fleet`, `infra`). list --phase <phase> filters to one board lane.
 `priority` orders cards **within** the ready pool regardless of phase.
 
 ## Status lifecycle
 
-```
+```text-diagram
             create
               │
               ▼
@@ -87,51 +87,49 @@ would add ceremony without benefit.
 - **blocked** — explicitly parked; never auto-claimed.
 - **done** — completed; satisfies dependents.
 
-## Atomic claim (`FOR UPDATE SKIP LOCKED`) + TTL
+## Atomic claim (FOR UPDATE SKIP LOCKED) + TTL
 
 `claim` is atomic. Inside a single transaction it locks candidate `ready` rows
-with `SELECT ... FOR UPDATE SKIP LOCKED` (via the drizzle `sql` operator), picks
+with SELECT ... FOR UPDATE SKIP LOCKED (via the drizzle `sql` operator), picks
 the highest-priority deps-satisfied card, and flips it to `claimed`. Because a row
 already locked by a concurrent claimer is **skipped**, two claimers can **never**
 both win the same card — the loser falls through to the next candidate or gets
 `null`. (Proven by the concurrency tests in `packages/db/src/backlog.spec.ts`.)
 
 - **Deps gate:** a card is only claimable when every id in `depends_on` is `done`.
-- **TTL:** `claim --ttl <sec>` (default **900s**) records `claim_ttl_seconds`.
-- **reclaim:** releases claims whose `claimed_at + ttl` is in the past (expired)
-  back to `ready`, clearing the claim fields. `reclaim --id <id>` force-releases a
+- **TTL:** claim --ttl <sec> (default **900s**) records `claim_ttl_seconds`.
+- **reclaim:** releases claims whose claimed_at + ttl is in the past (expired)
+  back to `ready`, clearing the claim fields. reclaim --id <id> force-releases a
   specific card regardless of expiry. This is how a crashed worker's card returns
   to the pool.
 
-## CLI — `mosaic fleet backlog <sub> --json`
+## CLI — mosaic fleet backlog <sub> --json
 
 All subcommands support `--json`.
 
 | Subcommand                                                                                  | Purpose                                                                                   |
-| --------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------- |
-| `create --id --title [--body --phase --priority --depends-on --acceptance --idempotency-key]` | Create a card; `idempotency_key` dedups (repeat returns the existing card).               |
-| `list [--status --phase --ready-only]`                                                        | List cards. `--ready-only` = status `ready` AND all deps `done`.                          |
-| `claim --owner [--ttl <sec> --id <id>]`                                                       | Atomically claim the highest-priority ready card (or `--id`). Returns the card or `null`. |
-| `reclaim [--id <id>]`                                                                         | Release expired claims (or a specific card) back to `ready`.                              |
-| `link --from --to`                                                                            | Add a `depends_on` edge (`--from` depends on `--to`).                                     |
+| ------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------- |
+| create --id --title [--body --phase --priority --depends-on --acceptance --idempotency-key] | Create a card; `idempotency_key` dedups (repeat returns the existing card).               |
+| list [--status --phase --ready-only]                                                        | List cards. `--ready-only` = status `ready` AND all deps `done`.                          |
+| claim --owner [--ttl <sec> --id <id>]                                                       | Atomically claim the highest-priority ready card (or `--id`). Returns the card or `null`. |
+| reclaim [--id <id>]                                                                         | Release expired claims (or a specific card) back to `ready`.                              |
+| link --from --to                                                                            | Add a `depends_on` edge (`--from` depends on `--to`).                                     |
 | `stats`                                                                                     | Counts by status, oldest-ready age, expired-claim count.                                  |
-| `block --id`                                                                                  | Set a card to `blocked`.                                                                  |
-| `complete --id`                                                                               | Set a card to `done` (releases any claim).                                                |
+| block --id                                                                                  | Set a card to `blocked`.                                                                  |
+| complete --id                                                                               | Set a card to `done` (releases any claim).                                                |
 
 ### Example
 
-```sh
-# Seed two cards, the second depends on the first.
+Seed two cards; the second depends on the first. Because A2 is gated on A1, claim returns A1 first. Finish A1, then list A2 as ready. Recover stalled work.
+
+```fleet-command
 mosaic fleet backlog create --id A1 --title "schema" --priority 5
 mosaic fleet backlog create --id A2 --title "service" --depends-on A1 --priority 9
 
-# A2 is gated on A1, so claim returns A1 first.
 mosaic fleet backlog claim --owner worker-1 --ttl 600 --json
 
-# Finish A1; now A2 is ready.
 mosaic fleet backlog complete --id A1
 mosaic fleet backlog list --ready-only --json
 
-# Recover stalled work.
 mosaic fleet backlog reclaim --json
 ```

docs/fleet/concepts/desired-vs-observed-state.md

@@ -0,0 +1,42 @@
+# Desired, Derived, and Observed Fleet State
+
+## One writable authority
+
+The canonical local v2 roster at <MOSAIC_HOME>/fleet/roster.yaml is desired state. Membership, stable identity, class, runtime/provider/model selection, launch policy, enablement, and persisted `running`/`stopped` intent are written only through generation-guarded roster mutations.
+
+Derived projections are reproducible consequences of that authority:
+
+- <name>.env.generated;
+- exact roster-named tmux sessions on the configured socket after reconciliation;
+- systemd service targets managed by installation/reconciliation.
+
+Current systemd unit enablement is not yet lifecycle-conformant at boot: installation can enable every
+agent unit, and the launcher projection does not carry `enabled` or `desired_state`. Therefore reboot
+preservation for stopped/disabled agents remains an FCM-M3-002 acceptance hold, not a guaranteed
+projection behavior.
+
+Observed evidence available to current roster-v2 status commands includes systemd active state, tmux
+presence, holder ownership, and unmanaged sessions. Heartbeat files are observational in the wider fleet,
+but roster-v2 `status`, `doctor`, and `verify` do not currently read them. Observation never writes back
+to the roster.
+
+## Generation and ownership
+
+`generation` is a positive integer concurrency fence. A mutating request must provide the current value. Successful changed CRUD increments it exactly once; stale or concurrent writers fail before mutation. Apply/reconcile rereads the canonical roster under a private exclusive lock and uses only that generation and content for effects.
+
+Ownership is exact, never fuzzy. Reconciliation is limited to roster names, the configured socket, the exact holder session, a private installation identity, and private managed paths. An ownership mismatch, unmanaged session, unsafe path, stale generation, or ambiguous lock fails closed.
+
+## Drift decisions
+
+| Observation                              | Interpretation           | Safe response                                                          |
+| ---------------------------------------- | ------------------------ | ---------------------------------------------------------------------- |
+| Generated file differs or is missing     | Derived projection drift | Review apply --dry-run; regenerate from the roster.                    |
+| Desired `running`, exact session missing | `missing-session`        | Diagnose ownership/runtime, then reconcile if safe.                    |
+| Desired `stopped`, exact session present | `unexpected-session`     | Inspect; reconciliation may stop only the proven roster target.        |
+| Disabled agent running                   | `disabled-running`       | Inspect; disabled state wins during explicit safe reconciliation.      |
+| Unknown session on the configured socket | Unmanaged state          | Report only. Do not adopt, rename, or kill it.                         |
+| Heartbeat stale in the wider fleet       | Liveness evidence        | Diagnose separately; current roster-v2 status does not read heartbeat. |
+
+`status` and `doctor` classify. `verify` is also observational but exits non-zero when ownership, drift, or unmanaged-state checks fail. `plan`/apply --dry-run validates proposed projection and lifecycle work without mutation. `apply` and `reconcile` converge only after all preconditions pass.
+
+A partial projection failure does not roll the roster back. Treat the committed roster as authority and regenerate. A lifecycle failure after projection completion preserves both roster and projections for inspection. Sensitive legacy values are never printed; diagnostics are bounded to stable codes, key names where applicable, and hashes.

docs/fleet/concepts/generated-env-launch-chain.md

@@ -0,0 +1,23 @@
+# Generated Environment Launch Chain
+
+The launcher consumes validated data, not shell configuration.
+
+1. Read and validate the canonical roster.
+2. Render deterministic <name>.env.generated data from that roster.
+3. Parse optional <name>.env.local through a strict allowlist.
+4. Reject generated-key shadowing, unknown or sensitive-looking keys, unsafe paths/values, duplicates, malformed lines, shell syntax, and command overrides.
+5. Derive the runtime command from validated runtime/model/reasoning data.
+6. Target only the exact configured tmux socket and roster session after ownership checks.
+
+## File precedence and ownership
+
+| File              | Owner                    | Use                                                                         |
+| ----------------- | ------------------------ | --------------------------------------------------------------------------- |
+| `.env.generated`  | Mosaic projection writer | Complete deterministic roster projection. Rebuild; do not edit.             |
+| `.env.local`      | Operator                 | Optional, private, strict machine-local data. Cannot shadow generated keys. |
+| `.env`            | Legacy input             | One-time migration input only; never launch authority.                      |
+| `.env.quarantine` | Private quarantine       | Retained unsafe legacy evidence; never loaded by the launcher.              |
+
+Neither systemd nor the launcher sources these files. No `eval`, shell expansion, arbitrary `MOSAIC_AGENT_COMMAND`, channel, or secret-reference compatibility path exists. Safe legacy generated keys are regenerated, allowed local keys are relocated, and unsafe material is quarantined.
+
+Diagnostics never expose the rejected value, credential material, or command text. They are bounded to stable rule code, key name where safe, and SHA-256 content identity. See [generated environment reference](../reference/generated-env-boundary.md) and [quarantine operations](../operations/env-quarantine.md).

docs/fleet/concepts/identity-class-runtime.md

@@ -0,0 +1,20 @@
+# Fleet Identity, Class, and Runtime
+
+Each roster field has one job. Do not use names or model strings as authority shortcuts.
+
+| Concern                 | Field                         | Contract                                                                                     |
+| ----------------------- | ----------------------------- | -------------------------------------------------------------------------------------------- |
+| Stable machine identity | agents[].name                 | Unique, immutable mutation target and exact service/session name.                            |
+| Display identity        | agents[].alias                | Human-facing label only; may be changed and grants no authority.                             |
+| Behavioral contract     | agents[].class                | Resolves through the shared baseline plus `roles.local` persona library.                     |
+| Tool boundary           | agents[].tool_policy          | Must match protected canonical classes; cannot independently grant authority.                |
+| Harness                 | agents[].runtime              | One of `claude`, `codex`, `opencode`, or `pi`, declared in `runtimes`.                       |
+| Backend selection       | agents[].provider and `model` | Explicit non-empty data; capability validity is not inferred from the display name or class. |
+| Effort                  | agents[].reasoning            | `low`, `medium`, or `high`.                                                                  |
+| Local placement         | `working_directory`           | Explicit safe local work path; not remote placement authority.                               |
+
+Tess and Ultron are conventional instance/display names only. They are not products, required machine identities, role aliases, or authority-bearing classes. A configurable interaction instance uses class: interaction; a configurable validation instance uses class: validator. Any stable name and alias satisfying the structural contract may be used.
+
+Class aliases are deliberately narrow: implementer → code, reviewer → review, and operator-interaction → interaction. No runtime, provider, model, persona prose, or instance name changes this mapping. See [role classes](../reference/role-classes.md) and the [validated generic example](../examples/roster-v2.yaml).
+
+Roster v2 is local-only. It contains no host/SSH placement, connector, channel, secret-reference, arbitrary-command, per-agent socket, or gateway mapping fields. Those concerns require separate requirements and threat models.

docs/fleet/concepts/role-authority-and-leases.md

@@ -0,0 +1,22 @@
+# Fleet Role Authority and Leases
+
+Role content describes behavior; protected authority is immutable code metadata derived only from the canonical class.
+
+## Required workstream classes
+
+`code`, `review`, `validator`, `orchestrator`, `team-leader`, `enhancer`, and `interaction` are required FCM classes. `merge-gate` is additionally protected because it remains the sole approve-to-land and merge authority.
+
+| Class                                        | Authority                                         | Boundary                                                                               |
+| -------------------------------------------- | ------------------------------------------------- | -------------------------------------------------------------------------------------- |
+| `merge-gate`                                 | Approve-to-land and merge                         | Sole merge authority.                                                                  |
+| `validator`                                  | Issue independent validation evidence/certificate | Never approves landing or merges.                                                      |
+| `orchestrator`                               | Orchestrate topology and issue bounded leases     | Does not gain merge authority.                                                         |
+| `team-leader`                                | Use explicitly leased capacity                    | Cannot issue leases or mutate roster, credentials, topology authority, or merge state. |
+| `interaction`                                | Receive requests and report status                | Cannot orchestrate, issue leases, mutate configuration, or merge.                      |
+| `code`, `review`, `enhancer`, custom classes | No protected authority by default                 | Persona prose cannot grant protected powers.                                           |
+
+A lease is capacity authorization from an orchestrator, not ownership. It must identify a bounded task or period and does not alter the leased agent's roster identity, role contract, credentials, authority, or persisted lifecycle. Expiry/revocation returns capacity; it does not rewrite the roster.
+
+Semantic validation rejects protected class/tool-policy mismatch in either direction. An instance named Ultron with class: validator remains validation-only. An instance named Tess with class: interaction remains request/status-only. Renaming either instance changes no authority.
+
+For resolver layering and safe customization, see [role classes](../reference/role-classes.md) and [customize roles](../how-to/customize-roles.md).

docs/fleet/examples/roster-v2.yaml

@@ -0,0 +1,61 @@
+version: 2
+generation: 1
+transport: tmux
+tmux:
+  socket_name: mosaic-fleet
+  holder_session: _holder
+defaults:
+  working_directory: ~/src
+  runtime: pi
+runtimes:
+  pi:
+    reset_command: /new
+agents:
+  - name: code-example
+    alias: Code Example
+    class: code
+    runtime: pi
+    provider: example-provider
+    model: example-model
+    reasoning: medium
+    tool_policy: code
+    working_directory: ~/src
+    persistent_persona: false
+    reset_between_tasks: true
+    lifecycle:
+      enabled: true
+      desired_state: stopped
+    launch:
+      yolo: false
+  - name: interaction-example
+    alias: Interaction Example
+    class: interaction
+    runtime: pi
+    provider: example-provider
+    model: example-model
+    reasoning: low
+    tool_policy: interaction
+    working_directory: ~/src
+    persistent_persona: true
+    reset_between_tasks: false
+    lifecycle:
+      enabled: true
+      desired_state: stopped
+    launch:
+      yolo: false
+  - name: validator-example
+    alias: Validator Example
+    class: validator
+    runtime: pi
+    provider: example-provider
+    model: example-model
+    reasoning: high
+    tool_policy: validator
+    working_directory: ~/src
+    persistent_persona: false
+    reset_between_tasks: true
+    lifecycle:
+      enabled: true
+      desired_state: stopped
+    launch:
+      yolo: false

docs/fleet/f4-matrix-connector.md

@@ -15,7 +15,7 @@ core.
 
 Connectors implement one small, uniform interface (`src/fleet/connectors/types.ts`):
 
-```ts
+```typescript
 interface OrchestratorConnector {
   readonly kind: 'tmux' | 'discord' | 'matrix';
   send(message: OutboundMessage): Promise<SendResult>; // orchestrator → human
@@ -25,11 +25,11 @@ interface OrchestratorConnector {
 ```
 
 - **send / subscribe / health** — the only surface fleet core depends on. `SendResult` is the
-  ack half; `health()` is the liveness half.
+  ack half; health() is the liveness half.
 - **Thread-aware by metadata** — `OutboundMessage.threadId` / `InboundMessage.threadId` are
   optional, so thread-capable connectors (Matrix rooms/threads, the future first-party Mosaic
   Discord plugin) fit **without an interface change**.
-- **Registry** (`registry.ts`) — implementations register a factory by kind; `createConnector(config)`
+- **Registry** (`registry.ts`) — implementations register a factory by kind; createConnector(config)
   resolves one from roster config. Phase 1 ships the registry + `resolveConnectorKind` (defaults
   `tmux` when a roster declares no connector — **back-compat**); the factories land in Phase 2.
 
@@ -39,7 +39,7 @@ A roster may carry an optional `connector` block (`roster.schema.json`); absent
 
 ```yaml
 connector:
-  kind: matrix # tmux | discord | matrix
+  kind: matrix
   matrix:
     homeserver_url: https://matrix.example.internal
     user_id: '@mos:example.internal'
@@ -56,10 +56,10 @@ The connector speaks the **Matrix client-server API** directly over HTTPS (`fetc
 for MVP), so it is **homeserver-agnostic**:
 
 | Op          | Matrix CS-API                                                           |
-| ----------- | ------------------------------------------------------------------------ |
-| `send`      | `PUT /_matrix/client/v3/rooms/{roomId}/send/m.room.message/{txnId}`      |
-| `subscribe` | `GET /_matrix/client/v3/sync` (long-poll, `since` token) → room timeline |
-| `health`    | `GET /_matrix/client/versions` (reachable) + `…/account/whoami` (authed) |
+| ----------- | ----------------------------------------------------------------------- |
+| `send`      | PUT /\_matrix/client/v3/rooms/{roomId}/send/m.room.message/{txnId}      |
+| `subscribe` | GET /\_matrix/client/v3/sync (long-poll, `since` token) → room timeline |
+| `health`    | GET /\_matrix/client/versions (reachable) + …/account/whoami (authed)   |
 | threads     | `m.thread` relations ↔ `threadId`                                       |
 
 ## Local homeserver (infra, not connector code)
@@ -79,7 +79,7 @@ homeserver choice is a **deployment** concern (a Phase-2 deploy guide), not conn
 | ----- | --------------------------------------------------------------------------------------- | ------- |
 | **1** | Connector interface + types, registry + kind resolution, roster `connector` schema, doc | ✅ yes  |
 | 2     | Matrix CS-API client (fetch-based send/sync/health) + registered factory + tests        | follow  |
-| 2     | `fleet init` / `configure` connector-selection UX; roster parse wires the block         | follow  |
+| 2     | fleet init / `configure` connector-selection UX; roster parse wires the block           | follow  |
 | 2     | systemd launch wiring so the orchestrator starts on the chosen connector                | follow  |
 | 3     | Conduit deploy guide; first-party Mosaic Discord (threads) registers as a connector     | follow  |
 

docs/fleet/how-to/configure-tess-interaction.md

@@ -0,0 +1,21 @@
+# Configure an Interaction Instance
+
+An interaction instance is a configurable local roster member with canonical class: interaction and matching tool_policy: interaction. “Tess” may be used as a display alias, but neither that alias nor the stable name is required or authority-bearing.
+
+Use the [validated generic roster](../examples/roster-v2.yaml) as the safe shape. Choose a unique stable `name`, any descriptive `alias`, a supported declared runtime, explicit provider/model/reasoning, and a safe work directory. Start with:
+
+```yaml
+name: interaction-example
+alias: Interaction Example
+class: interaction
+tool_policy: interaction
+lifecycle:
+  enabled: true
+  desired_state: stopped
+```
+
+Plan the complete agent payload with the current roster generation, then create it without `--persisted-start`. Creation defaults to enabled/stopped and performs no runtime action. Review the resulting roster and projection plan before any later lifecycle decision.
+
+The interaction class is request/status only. It cannot orchestrate, issue leases, mutate the roster/configuration, grant credentials, certify validation, approve landing, or merge. Connector and channel configuration are outside roster v2; do not add connector, channel, secret, command, remote-host, or gateway fields.
+
+See [safe CRUD](create-update-delete-agent.md), [identity separation](../concepts/identity-class-runtime.md), and [role authority](../concepts/role-authority-and-leases.md).

docs/fleet/how-to/configure-ultron-validator.md

@@ -0,0 +1,21 @@
+# Configure a Validator Instance
+
+A validator instance is a configurable local roster member with canonical class: validator and matching tool_policy: validator. “Ultron” may be used as a display alias, but it is not a required identity, class alias, product name, or source of authority.
+
+Use the [validated generic roster](../examples/roster-v2.yaml) as the safe shape. Choose a unique stable name and explicit supported runtime/provider/model/reasoning values. Start stopped:
+
+```yaml
+name: validator-example
+alias: Validator Example
+class: validator
+tool_policy: validator
+lifecycle:
+  enabled: true
+  desired_state: stopped
+```
+
+Plan the full payload with the current generation and create without `--persisted-start`. Creation writes desired state and projections only; it does not launch a validator.
+
+`validator` may issue independent validation evidence or a certificate. It has no approve-to-land or merge authority. `merge-gate` remains the sole protected merge authority, and changing the validator's name, alias, persona prose, runtime, provider, model, or tool-policy text cannot elevate it.
+
+Certificate consumption and final release evidence remain FCM-M5-002 gates. This page does not create a certificate or authorize merge. See [safe CRUD](create-update-delete-agent.md) and [role authority](../concepts/role-authority-and-leases.md).

docs/fleet/how-to/create-update-delete-agent.md

@@ -4,20 +4,20 @@ Use the local roster-v2 control plane only. These commands change desired state
 
 ## Read and plan first
 
-```sh
+```fleet-synopsis
 mosaic fleet get <name>
 mosaic fleet plan create --expected-generation <n> --agent '<json>'
 mosaic fleet plan update <name> --expected-generation <n> --agent '<json>'
 mosaic fleet plan delete <name> --expected-generation <n>
 ```
 
-`plan create` takes the name from `--agent`. `plan update` and `plan delete` require the target name immediately after the operation. A plan is deterministic and side-effect free: it validates the complete proposed roster and projection targets without changing files. Use `--dry-run` on `create`, `update`, or `delete` for the same no-write result.
+plan create takes the name from `--agent`. plan update and plan delete require the target name immediately after the operation. A plan is deterministic and side-effect free: it validates the complete proposed roster and projection targets without changing files. Use `--dry-run` on `create`, `update`, or `delete` for the same no-write result.
 
-Every successful command prints JSON. `get` returns `{ "generation", "agent" }`; mutation results contain `plan`, `applied`, `authoritativeRoster`, and `projections`.
+Every successful command prints JSON. `get` returns { "generation", "agent" }; mutation results contain `plan`, `applied`, `authoritativeRoster`, and `projections`.
 
 ## Create safely
 
-```sh
+```fleet-command
 mosaic fleet create --expected-generation 7 --agent '{
   "name":"coder0",
   "alias":"Coder 0",
@@ -34,20 +34,20 @@ mosaic fleet create --expected-generation 7 --agent '{
 }'
 ```
 
-Create defaults to `enabled: true` and `desired_state: stopped`. It does not start a process. Add `--persisted-start` only to persist `desired_state: running`; that still does not start a runtime in this M2 command. The JSON payload is an allowlist of the roster-v2 fields shown above plus `launch.yolo`; command, channel, secret-reference, and other unknown keys are rejected rather than ignored. The JSON error exposes only a stable code, never the rejected value.
+Create defaults to enabled: true and desired_state: stopped. It does not start a process. Add `--persisted-start` only to persist desired_state: running; that still does not start a runtime in this M2 command. The JSON payload is an allowlist of the roster-v2 fields shown above plus `launch.yolo`; command, channel, secret-reference, and other unknown keys are rejected rather than ignored. The JSON error exposes only a stable code, never the rejected value.
 
 ## Update and delete safely
 
-```sh
-mosaic fleet update coder0 --expected-generation 8 --agent '<complete JSON agent payload>'
-mosaic fleet delete coder0 --expected-generation 9
+```fleet-synopsis
+mosaic fleet update <name> --expected-generation <n> --agent '<complete JSON agent payload>'
+mosaic fleet delete <name> --expected-generation <n>
 ```
 
 Updates require a complete agent JSON payload and preserve the stable name. Delete removes only the exact roster-owned `coder0.env.generated` projection. It retains `coder0.env.local`, legacy `coder0.env`, `coder0.env.quarantine`, and every unrelated projection. A delete dry-run leaves all of those files byte-identical.
 
 ## Handle generation conflicts
 
-Every mutation requires the current authoritative `--expected-generation`. A stale value returns JSON `error.code: "stale-generation"` with a non-zero exit. Reload with `mosaic fleet get <name>` or reread the roster, plan again using the returned generation, then retry. A concurrent mutation returns `concurrent-mutation`; do not force or bypass the lock.
+Every mutation requires the current authoritative `--expected-generation`. A stale value returns JSON error.code: "stale-generation" with a non-zero exit. Reload with mosaic fleet get <name> or reread the roster, plan again using the returned generation, then retry. A concurrent mutation returns `concurrent-mutation`; do not force or bypass the lock.
 
 ## Interpret partial failures
 
@@ -71,4 +71,4 @@ This is not a rollback and not a no-op: reload the roster because its generation
 
 Handled validation errors and partial projection failures exit non-zero. `plan`/`--dry-run` and normal mutation JSON make the state explicit; scripts should use both the exit code and `authoritativeRoster`/`projections`, not `applied` alone.
 
-The commands operate only on `<mosaic-home>/fleet/roster.yaml`, the local roster desired-state authority. They do not accept arbitrary commands, channels, secrets, remote/connector actions, migration/canary actions, or runtime lifecycle operations.
+The commands operate only on <mosaic-home>/fleet/roster.yaml, the local roster desired-state authority. They do not accept arbitrary commands, channels, secrets, remote/connector actions, migration/canary actions, or runtime lifecycle operations.

docs/fleet/how-to/customize-roles.md

@@ -2,8 +2,8 @@
 
 Mosaic resolves persona contracts through two layers:
 
-1. `fleet/roles/<canonical-class>.md` — seeded baseline contract.
-2. `fleet/roles.local/<canonical-class>.md` — operator override or custom role; this layer wins.
+1. fleet/roles/<canonical-class>.md — seeded baseline contract.
+2. fleet/roles.local/<canonical-class>.md — operator override or custom role; this layer wins.
 
 The same shared resolver is used by profile validation, provisioning, roster-v2 semantic validation,
 and launch-time persona injection.
@@ -34,11 +34,11 @@ A custom class remains supported when a readable contract exists for the exact i
 The release-notes role (`class: release-notes`) prepares operator-reviewed release copy.
 ```
 
-Save it as `fleet/roles.local/release-notes.md`, then reference `class: release-notes` and a matching
-`tool_policy: release-notes` in roster v2. Adding only a `LIBRARY.md` row is insufficient.
+Save it as `fleet/roles.local/release-notes.md`, then reference class: release-notes and a matching
+tool_policy: release-notes in roster v2. Adding only a `LIBRARY.md` row is insufficient.
 
 Names such as `worker`, `analyst`, and `canary` are not built-in aliases; they need genuine custom
-contracts. `agents[].alias`, Tess, and Ultron are display names and cannot select a class.
+contracts. agents[].alias, Tess, and Ultron are display names and cannot select a class.
 
 ## Validation and authority boundaries
 

docs/fleet/how-to/start-stop-restart.md

@@ -2,22 +2,22 @@
 
 Use the canonical local roster-v2 command surface:
 
-```sh
+```fleet-synopsis
 mosaic fleet apply --expected-generation <n> --dry-run
 mosaic fleet apply --expected-generation <n>
 mosaic fleet reconcile --expected-generation <n>
 mosaic fleet start <name> --expected-generation <n>
 mosaic fleet stop <name> --expected-generation <n>
 mosaic fleet restart <name> --expected-generation <n>
-mosaic fleet status [name]
+mosaic fleet status [<name>]
 mosaic fleet verify
 mosaic fleet doctor
 ```
 
-Start with `--dry-run`. It validates roster semantics, deterministic projections, private managed paths, exact holder ownership, and named-socket state without changing files or lifecycle state. `apply` and `reconcile` rebuild derived projections and enforce only persisted roster state: enabled `running` agents may start, while stopped or disabled agents are not started.
+Start with `--dry-run`. It validates roster semantics, deterministic projections, private managed paths, exact holder ownership, and named-socket state without changing files or lifecycle state. Explicit `apply` and `reconcile` rebuild derived projections and enforce persisted roster state: enabled `running` agents may start, while stopped or disabled agents are not started. This guarantee does not extend to reboot/service activation yet; boot preservation remains an FCM-M3-002 hold.
 
-`start`, `stop`, and `restart` are explicit one-shot exact-service actions. They do not persist a lifecycle change. Roster CRUD is the only way to change persisted desired state.
+`start`, `stop`, and `restart` are explicit one-shot exact-service actions. They do not persist a lifecycle change. `update` preserves the agent's existing lifecycle, and no delivered operation changes durable lifecycle after creation.
 
-Every command prints JSON. Observation commands report drift without mutation; `verify` exits non-zero on ownership mismatch, unmanaged sessions, or drift. A failed apply that wrote some derived projections reports `projections: "incomplete"` with bounded recovery to regenerate from the roster. A lifecycle failure after projections reports incomplete lifecycle work; it is never represented as a rollback or no-op.
+Every command prints JSON. Observation commands report drift without mutation; `verify` exits non-zero on ownership mismatch, unmanaged sessions, or drift. A failed apply that wrote some derived projections reports projections: "incomplete" with bounded recovery to regenerate from the roster. A lifecycle failure after projections reports incomplete lifecycle work; it is never represented as a rollback or no-op.
 
 These commands are local only. Remote/SSH/connector entries are inventory/validation-only. Commands do not accept arbitrary runtime commands, channels, secrets, generated-file desired state, or arbitrary tmux sockets.

docs/fleet/migration/example-profile-disposition.md

@@ -11,7 +11,7 @@ artifact is added, removed, or left without one of the dispositions below.
 ## Disposition rules
 
 - **Explicit v1 fixture:** the artifact is loaded through the existing v1 roster parser and must
-  declare `version: 1`. It remains a compatibility fixture; it is not silently treated as a v2
+  declare version: 1. It remains a compatibility fixture; it is not silently treated as a v2
   roster or given inferred aliases.
 - **Canonical profile:** the artifact is loaded through `loadProfiles`, which uses the shared
   baseline-plus-`roles.local` persona resolver and rejects unreadable or unresolved classes.
@@ -59,7 +59,7 @@ rollback; those gates belong to FCM-M4-002. See [v1-to-v2 preview](./v1-to-v2.md
 
 ## Running the guard
 
-```bash
+```fleet-command
 pnpm --filter @mosaicstack/mosaic test -- v1-v2-migration.spec.ts \
   -t "validates all 13 shipped artifacts and executes ready previews for every v1 fixture"
 ```

docs/fleet/migration/v1-to-v2.md

@@ -2,14 +2,14 @@
 
 **Issue:** #758 · **Card:** FCM-M4-001 · **Effect boundary:** preview only
 
-`mosaic fleet migrate-v1 preview` inventories a v1 roster and emits a canonical v2 candidate plus
+mosaic fleet migrate-v1 preview inventories a v1 roster and emits a canonical v2 candidate plus
 recovery evidence. It does not write a roster, apply environment projections, invoke systemd or
 `tmux`, contact connectors or remote hosts, launch an agent, run a canary, or execute rollback.
 FCM-M4-002 owns reversible cutover and rollback.
 
 ## Inputs
 
-```bash
+```fleet-command
 mosaic fleet migrate-v1 preview \
   --source roster-v1.yaml \
   --decisions migration-decisions.json \
@@ -45,13 +45,13 @@ be marked disabled. Observed-stopped agents always remain stopped.
 ## Field disposition
 
 | v1 field                                                                 | v2 disposition                                                                                                                                                                                                                                                                                                                |
-| ------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| ------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `version`, `transport`, `tmux`, `defaults`, `runtimes`                   | Inventoried and structurally compiled; omitted runtimes retain v1 built-in defaults, while each explicitly declared runtime without a reset field follows the production v1 `/clear` fallback; present-empty holder/work-directory/reset values block                                                                         |
-| agent `name`, `alias`, `runtime`, working directory, persona/reset flags | Copied or explicitly defaulted only when absent; present-empty alias/work-directory values block for explicit disposition. Canonical `~`/`~/...` values stay unchanged in roster evidence and traversal-free forms expand only at the shared production environment-projection boundary before unchanged absolute-path validation |
+| agent `name`, `alias`, `runtime`, working directory, persona/reset flags | Copied or explicitly defaulted only when absent; present-empty alias/work-directory values block for explicit disposition. Canonical ~/~/... values stay unchanged in roster evidence and traversal-free forms expand only at the shared production environment-projection boundary before unchanged absolute-path validation |
 | `provider`, `model_hint`, `reasoning_level`                              | Explicit provider/model/reasoning decisions; no model-hint inference                                                                                                                                                                                                                                                          |
 | `class`, `tool_policy`                                                   | Only approved aliases canonicalize automatically; other classes require explicit preserve/replace disposition and shared-resolver validation                                                                                                                                                                                  |
 | `kickstart_template`                                                     | No v2 field; explicit inventory-only disposition required                                                                                                                                                                                                                                                                     |
-| agent `host`, `ssh`                                                      | `host != fleetHost` is demonstrably remote and inventory-only; `host == fleetHost` stays local; SSH targets with or without an explicit user must agree with `host`; ssh-only, missing fleet-host evidence, or contradictory targets block                                                                                        |
+| agent `host`, `ssh`                                                      | host != fleetHost is demonstrably remote and inventory-only; host == fleetHost stays local; SSH targets with or without an explicit user must agree with `host`; ssh-only, missing fleet-host evidence, or contradictory targets block                                                                                        |
 | agent `socket`                                                           | Same-host candidate only when it matches the canonical fleet socket; conflicts block for explicit future disposition                                                                                                                                                                                                          |
 | root `connector`                                                         | Inventory-only; never contacted or reconciled                                                                                                                                                                                                                                                                                 |
 | unknown fields or snake/camel synonym collisions                         | Inventoried and block readiness                                                                                                                                                                                                                                                                                               |
@@ -61,8 +61,8 @@ be marked disabled. Observed-stopped agents always remain stopped.
 | legacy `.env` containing strict local keys                               | `relocate-local`; preserve those keys in `.env.local` during a later reviewed cutover                                                                                                                                                                                                                                         |
 | legacy `.env` containing forbidden/unsafe/sensitive/malformed keys       | `quarantine`; private input only, with diagnostics limited to code, key, and SHA-256                                                                                                                                                                                                                                          |
 
-The only automatic aliases are `implementer → code`, `reviewer → review`, and
-`operator-interaction → interaction`. Similar or domain-specific names are never inferred. Automatic
+The only automatic aliases are implementer → code, reviewer → review, and
+operator-interaction → interaction. Similar or domain-specific names are never inferred. Automatic
 classes do not accept competing disposition records. Semantic validation delegates to the existing
 baseline-plus-`roles.local` resolver after the candidate is compiled by the existing v2 compiler.
 

docs/fleet/north-star.md

@@ -44,9 +44,9 @@ The Fleet inherits — does not re-invent — the MVP's hard requirements:
 | MVP req                       | What it means for the Fleet                                                                                             |
 | ----------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
 | MVP-X1 three-surface parity   | fleet observability/control reachable via **CLI + TUI + webUI** (CLI first; webUI is required for parity, not optional) |
-| MVP-X2 multi-tenant isolation | one tenant = one **Linux uid** (own `systemd --user`, socket, `~/.config/mosaic`); no cross-tenant leakage              |
+| MVP-X2 multi-tenant isolation | one tenant = one **Linux uid** (own systemd --user, socket, ~/.config/mosaic); no cross-tenant leakage                  |
 | MVP-X3 auth (BetterAuth/SSO)  | operator→fleet and cross-host views are auth-gated through the platform's existing auth                                 |
-| MVP-X4 quality gates          | `pnpm typecheck`/`lint`/`format:check` green before any push                                                            |
+| MVP-X4 quality gates          | pnpm typecheck/`lint`/`format:check` green before any push                                                              |
 | MVP-X5 federated topology     | cross-host fleet visibility rides the **federation** boundary (W1), not a bespoke broker                                |
 | MVP-X6 OTEL tracing           | heartbeats, sends, and lifecycle events emit spans; `traceparent` crosses the federation boundary                       |
 | MVP-X7 trunk merge            | branch from `main`, squash-merge via PR, never push to `main`                                                           |
@@ -56,9 +56,9 @@ The Fleet inherits — does not re-invent — the MVP's hard requirements:
 One **definition** is the source of truth; the **session** is how it runs.
 
 | Layer                            | Owner                                                                                   | Phase-2 reality                                        | Destination                                                                                                                         |
-| -------------------------------- | ------------------------------------------------------------------------------------------- | ------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------- |
-| **Definition + identity + auth** | gateway / `mosaic-as` (scoped tokens, #541)                                                 | `roster.yaml` (tenant-tagged)                          | one definition; `mosaic agent --new` materializes it                                                                                |
-| **Tenancy boundary**             | **Linux uid per tenant** (linger, own `systemd --user`, own socket, own `~/.config/mosaic`) | one tenant: `jarvis` = tenant zero                     | uid-per-tenant; federation aggregates across hosts                                                                                  |
+| -------------------------------- | --------------------------------------------------------------------------------------- | ------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------- |
+| **Definition + identity + auth** | gateway / `mosaic-as` (scoped tokens, #541)                                             | `roster.yaml` (tenant-tagged)                          | one definition; mosaic agent --new materializes it                                                                                  |
+| **Tenancy boundary**             | **Linux uid per tenant** (linger, own systemd --user, own socket, own ~/.config/mosaic) | one tenant: `jarvis` = tenant zero                     | uid-per-tenant; federation aggregates across hosts                                                                                  |
 | **Runtime**                      | per-tenant tmux session on isolated socket                                              | dogfood stub sessions (live now on `mosaic-factory`)   | claude/codex/pi/opencode TUIs                                                                                                       |
 | **Liveness**                     | **heartbeat protocol** every runtime answers                                            | protocol defined + dogfood stub answers it             | all runtimes answer; "healthy" ≠ "pane alive"                                                                                       |
 | **Observation**                  | read-only `watch` (native tmux) + `pipe-pane` stream                                    | CLI `watch`/`ps`; explicit opt-in `attach` for control | + auth-gated webUI streams                                                                                                          |
@@ -68,7 +68,7 @@ One **definition** is the source of truth; the **session** is how it runs.
 
 > **PoC socket hygiene:** the PoC fleet runs on the **default tmux socket** (no `-L`).
 > The named production-isolation socket is **`mosaic-fleet`** (matches the product brand);
-> an absent roster `socket_name` means the default socket everywhere (spawn, `fleet ps`,
+> an absent roster `socket_name` means the default socket everywhere (spawn, fleet ps,
 > onboarding cheat-sheet). The legacy dogfood canary still runs on the old `mosaic-factory`
 > socket pending migration.
 
@@ -177,7 +177,7 @@ routing flow**, **concurrency** (the spend multiplier), and **hard API-token $-l
 are enforced at the orchestrator + routing boundary, not inside individual workers (a worker never
 decides its own budget — see delegation discipline).
 
-**Budget CLI UX (#558):** `mosaic budget set --reset-at` sets the window reset; reset-datetimes
+**Budget CLI UX (#558):** mosaic budget set --reset-at sets the window reset; reset-datetimes
 carry **confidence tags** (`user` / `provider` / `estimated` / `unknown`); and **urgency/criticality
 is a dispatch-gate modifier** — high-urgency work may override even-spread pacing **within
 authorization**. (Also feeds the budgeting workstream, not only this doc.)
@@ -185,14 +185,14 @@ authorization**. (Also feeds the budgeting workstream, not only this doc.)
 ## Observation model
 
 | Verb                              | Behavior                                                                                           |
-| ----------------------------------- | -------------------------------------------------------------------------------------------------- |
-| `mosaic fleet ps`                   | one table joining systemd + tmux + process + idle + last-heartbeat, with drift + boot-enable flags |
-| `mosaic agent watch <name>`         | **read-only** join (grouped session / `-r`), no resize tyranny, no keystrokes                      |
-| `mosaic agent attach <name>`        | explicit interactive takeover (the only path that can type)                                        |
-| `mosaic agent send <name> --verify` | confirms message **accepted**, not merely keystroke-injected                                       |
+| --------------------------------- | -------------------------------------------------------------------------------------------------- |
+| mosaic fleet ps                   | one table joining systemd + tmux + process + idle + last-heartbeat, with drift + boot-enable flags |
+| mosaic agent watch <name>         | **read-only** join (grouped session / `-r`), no resize tyranny, no keystrokes                      |
+| mosaic agent attach <name>        | explicit interactive takeover (the only path that can type)                                        |
+| mosaic agent send <name> --verify | confirms message **accepted**, not merely keystroke-injected                                       |
 
 > Why the current PoC blocks observation: sessions live on the isolated `mosaic-factory`
-> socket (invisible to default `tmux ls`), the only sanctioned read is `capture-pane`
+> socket (invisible to default tmux ls), the only sanctioned read is `capture-pane`
 > (blank for full-screen TUIs), and `attach` is read-write + resizes the session. The
 > verbs above restore "join and observe" safely.
 
@@ -214,7 +214,7 @@ compromised pane cannot corrupt or exfiltrate the register.
 | Layer                  | Responsibility                                                                                                | Implementation                                                                                                                                                                                            |
 | ---------------------- | ------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | **Register**           | Source of truth: agents, missions, tasks, heartbeats, spend                                                   | Postgres `fleet` schema — existing stack instance (`@mosaicstack/db`)                                                                                                                                     |
-| **Access**             | Typed, auth-gated API                                                                                         | Gateway `fleet/*` routes                                                                                                                                                                                  |
+| **Access**             | Typed, auth-gated API                                                                                         | Gateway fleet/\* routes                                                                                                                                                                                   |
 | **Dispatcher**         | Brief classification, BOD review, planning/coding/review/test/deploy sequencing + gates → fleet task dispatch | **forge pipeline engine** (`runPipeline`/`resumePipeline`, brief classifier, BOD) **+ thin `forge-exec` adapter → `agent-send.sh`**; NOT a new daemon — forge is reused, only stage→agent dispatch is new |
 | **Orchestrator (Mos)** | Goals, missions, judgment, user/PA interface                                                                  | Context-light; sets intent → re-engages only for decisions                                                                                                                                                |
 
@@ -236,7 +236,7 @@ role implementation.
 
 `docs/TASKS.md` and `MISSION-MANIFEST.md` are **generated projections** of the DB,
 not hand-maintained. The dispatcher (or a scheduled job) renders Markdown from
-`fleet.*` tables and commits the output. DB is authoritative; docs are for human
+fleet.\* tables and commits the output. DB is authoritative; docs are for human
 reference.
 
 ### Spend
@@ -267,11 +267,11 @@ re-evaluate if isolation or write-volume demands it.
 ## Phased roadmap
 
 | Phase                  | Outcome                                                                                                                                                                                                | Status  |
-| ---------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------- |
+| ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------- |
 | 0–1                    | tmux PoC, hardening, published CLI v0.0.34 (#565–#568)                                                                                                                                                 | ✅ done |
-| **2 — Observability**  | `fleet ps` (host+tenant aware join), heartbeat protocol + dogfood stub answers it, `agent watch` (read-only), `agent send --verify` receipts                                                             | ▶ now   |
+| **2 — Observability**  | fleet ps (host+tenant aware join), heartbeat protocol + dogfood stub answers it, agent watch (read-only), agent send --verify receipts                                                                 | ▶ now   |
 | 3 — Real runtimes      | claude/codex/pi/opencode answer heartbeat; **hybrid lifecycle** (core always-on: **orchestrator + enhancer**; ephemeral workers per lane)                                                              | planned |
-| 4 — Unified definition | one agent schema in gateway; `mosaic agent --new` → materialized per-tenant session; uid-tenant provisioning; **`fleet` schema migration + `forge-exec` TaskExecutor adapter (forge → `agent-send.sh`)** | planned |
+| 4 — Unified definition | one agent schema in gateway; mosaic agent --new → materialized per-tenant session; uid-tenant provisioning; **`fleet` schema migration + `forge-exec` TaskExecutor adapter (forge → `agent-send.sh`)** | planned |
 | 5 — Control plane      | federation-backed cross-host × cross-tenant fleet view; **webUI** (surface chosen then) for MVP-X1 parity; **central register live (spend ledger, docs-as-projections, multi-host Kanban)**            | planned |
 
 ## Decisions of record (2026-06-20, with Jason)
@@ -285,9 +285,9 @@ re-evaluate if isolation or write-volume demands it.
 - Delivery: **CLI-first now**, dogfood against the live stub fleet; webUI deferred to Phase 5.
 - Runtimes: fleet agents default to **Codex / pi-on-Codex**; **Claude is reserved for Claude
   Code only** (avoid alternate-harness API pricing). Validated durable recipe:
-  `mosaic yolo pi --model openai-codex/gpt-5.5:high`. Durable detached launch requires the
+  mosaic yolo pi --model openai-codex/gpt-5.5:high. Durable detached launch requires the
   runtime-bin on PATH (baked into the pane command) + boot-survival (`enable` + linger),
-  which `fleet init` should automate.
+  which fleet init should automate.
 
 ## Decisions of record (2026-06-22, with Jason)
 
@@ -304,19 +304,18 @@ re-evaluate if isolation or write-volume demands it.
 - **Session context cap = 200k tokens (GLOBAL to all Claude sessions):** Claude Code sessions are
   capped at a **max 200k-token context window**. Long-running sessions extended toward 1M tokens
   have proven **worse in practice** (degraded steering, off-plan divergence); 200k is the standard.
-  **Enforcement split:** the _window_ lives in **`~/.claude/settings.json`** (host-global) as
-  `"autoCompactWindow": 200000` + `"autoCompactEnabled": true`; the _1M-disable_ lives in **launch
+  **Enforcement split:** the _window_ lives in **~/.claude/settings.json** (host-global) as
+  "autoCompactWindow": 200000 + "autoCompactEnabled": true; the _1M-disable_ lives in **launch
   ENV** (`CLAUDE_CODE_DISABLE_1M_CONTEXT=1`, plus `CLAUDE_CODE_AUTO_COMPACT_WINDOW=200000`) wherever
-  a `[1m]` model can be selected (`mos-claude.service` + the fleet Claude launcher), so every Claude
+  a [1m] model can be selected (`mos-claude.service` + the fleet Claude launcher), so every Claude
   agent is capped at spawn. (settings = window; env = 1M-disable.)
 - **Worker context bound (#8):** workers are kept context-bounded via the **ephemeral-per-lane
   lifecycle + native compaction**, not via the 200k knob. The explicit `autoCompactWindow` 200k knob
   **stays Claude-specific** — the _principle_ (bounded context) extends to workers, the _knob_ does not.
 - **Orchestrator delegation discipline:** the orchestrator **delegates all delivery work** to
-  subagents / workflows / ultracode / coder agents and confines its own context to \*\*orchestration
-  - the personal-assistant lane\*\*. Keeping delivery out of the orchestrator's window keeps its
-    context unpolluted and measurably reduces off-plan divergence. The orchestrator coordinates and
-    decides; it does not implement.
+  subagents / workflows / ultracode / coder agents and confines its own context to the personal-assistant
+  lane. Keeping delivery out of the orchestrator's window keeps its context unpolluted and measurably
+  reduces off-plan divergence. The orchestrator coordinates and decides; it does not implement.
 - **Budget governance is fleet doctrine:** token/API-dollar budgeting is a first-class fleet concern
   (see "Budget & token governance"). OAuth-sub usage-vs-limit feedback is ingested per account, spend
   is **auto-paced EVEN-SPREAD over remaining time** (rapid/overspend only on explicit authorization),
@@ -344,7 +343,7 @@ re-evaluate if isolation or write-volume demands it.
 ### Control plane & central register
 
 - **Store:** Postgres (existing stack instance, dedicated `fleet` schema via `@mosaicstack/db`). SQLite rejected: (1) it is a local file — structurally incompatible with a multi-host fleet; (2) concurrent multi-agent writes caused repeated corruption in Hermes. "SQLite + access service" rejected as reinventing a DB server badly; "LLM agent gating DB access" rejected as slow, expensive, and a single point of failure.
-- **Access:** gateway API only (`apps/gateway`, `fleet/*` routes). No raw DB credentials in any agent/dispatcher pane — directly mitigates the tmux attack-surface concern.
+- **Access:** gateway API only (`apps/gateway`, fleet/\* routes). No raw DB credentials in any agent/dispatcher pane — directly mitigates the tmux attack-surface concern.
 - **Dispatcher = forge (reuse, not a new build):** the dispatcher IS `@mosaicstack/forge`'s pipeline engine (`runPipeline`/`resumePipeline` + brief classifier + BOD persona loader), a fully-implemented software-factory pipeline (brief → BOD review → 3 planning stages → coding → review/remediation → testing → deploy). We do **not** design/build a new dispatcher and do **not** re-implement sequencing, gate logic, or brief classification. The only new fleet-owned piece is a thin **`forge-exec` TaskExecutor adapter** (suggested package `packages/forge-exec`) mapping a `ForgeTask` → `agent-send.sh` dispatch to a named fleet agent — forge's single missing piece. It is tracked as a Gitea issue and built **post-PoC** (not now).
 - **Register backs forge:** the Postgres `fleet` register is genuinely new (neither forge nor the fleet has cross-project state). It BACKS forge's pipeline state (durable `resumePipeline`, cross-host) plus cross-project missions/tasks/Kanban.
 - **'board' role = forge BOD:** the north-star role-library 'board' role IS forge's Board-of-Directors — reused, not reinvented.
@@ -357,9 +356,9 @@ re-evaluate if isolation or write-volume demands it.
 
 - **Per-agent model switch (operator-configurable, NOT a global lock):** model selection is
   **per-agent**, never a host-global pin. Claude sessions MUST NOT be locked to a single model in
-  `~/.claude/settings.json`; each agent chooses its model independently. The plumbing already exists —
-  roster `model_hint` → `MOSAIC_AGENT_MODEL` → `start-agent-session.sh` appends `--model <hint>` to that
-  agent's harness (claude or pi); settable today via `mosaic fleet add|edit <agent> --model <hint>`.
+  ~/.claude/settings.json; each agent chooses its model independently. The plumbing already exists —
+  roster `model_hint` → `MOSAIC_AGENT_MODEL` → `start-agent-session.sh` appends --model <hint> to that
+  agent's harness (claude or pi); settable today via mosaic fleet add|edit <agent> --model <hint>.
   **North-star target:** surface this as a **per-agent model switch in the webUI** (with CLI/TUI parity
   per MVP-X1) — read the roster, expose a per-agent model dropdown, write `model_hint` back, and restart
   that one agent to apply. Unset = inherit the harness default. This **composes with** the budget
@@ -385,7 +384,7 @@ re-evaluate if isolation or write-volume demands it.
   self-hosted homeserver (Conduit default, Synapse alt). Matrix is named here as the strategic
   future transport — peer to tmux/Discord, not superseded by them.
 - **tmux fleet attack-surface hardening.** Many always-on tmux sessions are an attack surface;
-  `tmux send-keys` / socket access could enable malicious action against agents directly.
+  tmux send-keys / socket access could enable malicious action against agents directly.
   Mitigations to build toward: socket ownership/perms, per-tenant socket isolation (already an
   invariant), authenticated `agent-send`, and an audit of who can write to any pane. **Post-MVP
   unless a P0 surfaces.** The control-plane register reinforces this (gateway-API access = no raw
@@ -418,9 +417,9 @@ re-evaluate if isolation or write-volume demands it.
 
 ---
 
-> **Release procedure (drift re-capture, 2026-06-22):** `mosaic update` only propagates new fleet
+> **Release procedure (drift re-capture, 2026-06-22):** mosaic update only propagates new fleet
 > commands when the **CLI version is bumped** — without a version bump, fleet command changes never
-> reach installed hosts. The release/version-bump procedure (bump → publish → `mosaic update`
+> reach installed hosts. The release/version-bump procedure (bump → publish → mosaic update
 > [→ `--relaunch`]) must be documented so fleet changes actually land. (Also feeds the budgeting
 > workstream.)
 >

docs/fleet/operations/backup-restore.md

@@ -30,7 +30,7 @@ connector entry.
 
 The preview evidence deliberately records:
 
-- `executable: false`;
+- executable: false;
 - required backup artifacts;
 - source and candidate identities;
 - lifecycle observations and resulting desired states;

docs/fleet/operations/env-quarantine.md

@@ -0,0 +1,20 @@
+# Environment Quarantine Operations
+
+Legacy <name>.env is input evidence, never current launch authority. Projection preparation classifies it deterministically:
+
+- generated roster keys → discard and regenerate;
+- allowed strict local keys → relocate to private `.env.local`;
+- malformed, duplicate, unknown, sensitive-looking, shell-bearing, unsafe, or command-override entries → move the legacy input to private `.env.quarantine`.
+
+## Safe response
+
+1. Stop and read the stable error code and reported key name/hash. Do not request or paste the value.
+2. Confirm the canonical roster contains the intended non-sensitive desired state.
+3. If the key is an allowed local machine-data field, place only its validated data form in `.env.local` under private permissions.
+4. Remove unsupported intent rather than translating it into commands, channels, secret references, or unknown MOSAIC*AGENT*\* keys.
+5. Regenerate `.env.generated` from the roster and rerun a dry-run/verification gate.
+6. Retain quarantine evidence privately until the operator's normal retention process permits removal.
+
+The launcher never reads quarantine. Public/JSON diagnostics expose stable code, key name where safe, and SHA-256 only—never a legacy sensitive value, credential, rejected command, or full line. Quarantine does not prove remediation, backup, migration, or rollback.
+
+See [generated launch chain](../concepts/generated-env-launch-chain.md), [generated environment boundary](../reference/generated-env-boundary.md), and [migration field disposition](../migration/v1-to-v2.md#field-disposition).

docs/fleet/operations/reconcile-and-recover.md

@@ -2,10 +2,12 @@
 
 ## Safe sequence
 
-1. Read `mosaic fleet doctor` and `mosaic fleet status`.
-2. Run `mosaic fleet apply --expected-generation <n> --dry-run`.
+1. Read mosaic fleet doctor and mosaic fleet status.
+2. Run mosaic fleet apply --expected-generation <n> --dry-run.
 3. Resolve stale generation, ownership mismatch, unsafe path, projection validation, or unmanaged-session findings before applying.
-4. Run `mosaic fleet apply --expected-generation <n>` only after the plan is understood.
+4. Run mosaic fleet apply --expected-generation <n> only after the plan is understood.
+
+This is per-generation convergence, not a rolling canary. Executable canary cutover/rollback remains held for FCM-M4-002; rolling local release evidence remains FCM-M5-002. Do not approximate either with repeated live apply commands.
 
 The reconciler uses the exact roster tmux socket, exact holder session, private installation holder identity, and the complete expected global environment. For mutations it acquires its exclusive lock before rereading the canonical roster and fencing its generation; only that under-lock roster drives validation, planning, projections, and lifecycle effects. Before effects, its exclusive lock proves real private `MOSAIC_HOME` and `fleet` ancestors, uses a private `0600` lock leaf, and binds cleanup to the created file identity and ownership token. A fake holder, contaminated global environment, missing identity, unsafe lock path, or unmanaged session fails closed. It does not adopt, kill, or rename any unproven session. A crash can leave a stale lock for explicit operator inspection; reconciliation deliberately does not guess ownership or remove it.
 
@@ -23,4 +25,4 @@ The roster is never changed by reconciliation. If derived projection application
 }
 ```
 
-If projections completed but lifecycle work failed, JSON reports `projections: "complete"`, `lifecycle: "incomplete"`, and the bounded action `rerun-after-inspecting-owned-resources`. If lock cleanup cannot be proven after an effect result, it adds `cleanup: { "code": "lock-cleanup-failed", "action": "inspect-lock-before-retry" }` without changing the known projection, lifecycle, or primary recovery truth. Inspect the retained lock before retrying; no rollback, release, or stale-lock removal is implied. Results do not include environment values, secrets, or privileged command content.
+If projections completed but lifecycle work failed, JSON reports projections: "complete", lifecycle: "incomplete", and the bounded action `rerun-after-inspecting-owned-resources`. If lock cleanup cannot be proven after an effect result, it adds cleanup: { "code": "lock-cleanup-failed", "action": "inspect-lock-before-retry" } without changing the known projection, lifecycle, or primary recovery truth. Inspect the retained lock before retrying; no rollback, release, or stale-lock removal is implied. Results do not include environment values, secrets, or privileged command content.

docs/fleet/operations/systemd-tmux-troubleshooting.md

@@ -0,0 +1,24 @@
+# Systemd and tmux Troubleshooting
+
+Start with read-only mosaic fleet status, `doctor`, and `verify`. Do not manually adopt, rename, terminate, or recreate sessions while ownership is ambiguous.
+
+## Decision table
+
+| Finding                         | Meaning                                              | Safe next step                                                                        |
+| ------------------------------- | ---------------------------------------------------- | ------------------------------------------------------------------------------------- |
+| Empty roster `tmux.socket_name` | Literal default tmux server                          | Do not substitute the named `mosaic-fleet` socket. Use roster-derived commands only.  |
+| Non-empty socket                | Exact named socket                                   | Never target another socket or infer a per-agent socket.                              |
+| holder: missing                 | Required exact holder absent                         | Inspect installation/projection readiness; do not create an unproven holder manually. |
+| `ownership-mismatch`            | Holder identity or global environment differs        | Stop. Verify private install identity and managed paths before retry.                 |
+| `missing-session`               | Desired-running roster agent lacks exact session     | Check service/runtime preconditions; review apply dry-run.                            |
+| `unexpected-session`            | Desired-stopped roster agent still has exact session | Confirm ownership; only reconciler may target the exact proven roster member.         |
+| `disabled-running`              | Disabled roster member is observed running           | Inspect and reconcile only after ownership proof.                                     |
+| `unmanagedSessions`             | Unknown session exists on configured named socket    | Report and investigate separately. Reconciler will not kill or adopt it.              |
+| stale/concurrent generation     | Desired state changed since plan                     | Reload roster/generation and recompute the plan.                                      |
+| stale or ambiguous lock         | Prior writer/cleanup cannot be proven                | Inspect ownership; do not blindly remove the lock.                                    |
+| projection failure              | Derived files incomplete                             | Keep roster as authority and regenerate projections.                                  |
+| lifecycle failure               | Projections complete, runtime convergence incomplete | Inspect the exact owned resource, then rerun with current generation.                 |
+
+Systemd state, tmux state, heartbeat, and generated files are observations/projections, not alternate desired state. Explicit apply/reconcile honors stopped/disabled intent, but current unit enablement and launcher projections do not yet prove lifecycle-safe reboot; inspect unit enablement before reboot and treat stopped/disabled boot preservation as an FCM-M3-002 hold. Current roster-v2 status commands also do not read heartbeat files. Executable gates do not provide site cutover/rollback or package asset-revision repair.
+
+Errors and troubleshooting output never print legacy sensitive values, credential contents, or privileged command text. Use stable codes, key names/hashes, exact roster identities, and bounded recovery actions. See [status and drift](../reference/status-and-drift.md) and [reconcile and recover](reconcile-and-recover.md).

docs/fleet/operations/upgrade-assets.md

@@ -0,0 +1,18 @@
+# Upgrade and Installed-Asset Drift
+
+Fleet source assets and installed assets can differ after an update, but FCM-M5-001 does not add a trustworthy source-versus-installed revision detector or refresh command. Do not infer freshness from checkout presence, timestamps, generated environment files, running sessions, or a ready migration preview.
+
+## Current safe boundary
+
+- The canonical roster remains authority and must survive package/framework refresh.
+- Generated projections are rebuilt from that roster after the installed contract is independently verified.
+- Operator `roles.local`, `.env.local`, and private quarantine evidence are not generated assets and must not be overwritten.
+- Baseline roles, schemas, examples, service presets, launcher helpers, and systemd templates must move as one reviewed release set.
+- Remote/connector inventory and `mos-comms` are not promoted into permanent architecture by an update.
+- No update may start an agent persisted stopped, adopt an unmanaged session, or bypass generation/ownership checks.
+
+## Explicit hold
+
+FCM-M5-002 owns deterministic asset-drift checks, safe package/update refresh evidence, rolling local canary, independent validation certificate, and release evidence. Until that card lands, this page is an operational hold rather than an executable procedure: use the repository/release review path, preserve backups, and do not claim source/installed parity without exact revision evidence from the future validator.
+
+See [approved deferrals](../../reports/deferred/758-fleet-config-deferrals.md) and [backup/restore boundary](backup-restore.md).

docs/fleet/reference/agent-mutations.md

@@ -4,17 +4,17 @@ FCM-M2-002 provides local roster-v2 create, get, update, delete, and plan operat
 
 ## CLI contract
 
-The commands operate only on the canonical `<mosaic-home>/fleet/roster.yaml` v2 authority and print one JSON object to stdout. `--agent` is a JSON object with the roster agent fields expressed as `className`, `toolPolicy`, `workingDirectory`, `persistentPersona`, `resetBetweenTasks`, and `launch: { "yolo": boolean }`.
+The commands operate only on the canonical <mosaic-home>/fleet/roster.yaml v2 authority and print one JSON object to stdout. `--agent` is a JSON object with the roster agent fields expressed as `className`, `toolPolicy`, `workingDirectory`, `persistentPersona`, `resetBetweenTasks`, and launch: { "yolo": boolean }.
 
-```sh
+```fleet-synopsis
 mosaic fleet get <name>
-mosaic fleet plan <create|update|delete> [name] --expected-generation <n> [--agent '<json>'] [--persisted-start]
+mosaic fleet plan <create|update|delete> [<name>] --expected-generation <n> [--agent '<json>'] [--persisted-start]
 mosaic fleet create --expected-generation <n> --agent '<json>' [--dry-run] [--persisted-start]
 mosaic fleet update <name> --expected-generation <n> --agent '<json>' [--dry-run]
 mosaic fleet delete <name> --expected-generation <n> [--dry-run]
 ```
 
-`get` returns the authoritative generation and the selected agent. `plan create` derives its name from `--agent`; `plan update <name>` and `plan delete <name>` require the target name. `--agent` accepts only the documented roster-v2 request fields and `launch.yolo`; unknown keys such as commands, channels, or secret references are rejected. Rejection diagnostics return only the stable `invalid-request` code and never echo a rejected value. `plan` and `--dry-run` validate the complete proposed roster and projections but write neither the roster nor projections. `--persisted-start` is available only for a create request: it records `desired_state: running`, but does not start a process. Without it, create records `enabled: true` and `desired_state: stopped`. Handled failures return JSON with `error.code` and exit non-zero; unclassified validation/projection failures use the redacted `mutation-failed` code.
+`get` returns the authoritative generation and the selected agent. plan create derives its name from `--agent`; plan update <name> and plan delete <name> require the target name. `--agent` accepts only the documented roster-v2 request fields and `launch.yolo`; unknown keys such as commands, channels, or secret references are rejected. Rejection diagnostics return only the stable `invalid-request` code and never echo a rejected value. `plan` and `--dry-run` validate the complete proposed roster and projections but write neither the roster nor projections. `--persisted-start` is available only for a create request: it records desired_state: running, but does not start a process. Without it, create records enabled: true and desired_state: stopped. Handled failures return JSON with `error.code` and exit non-zero; unclassified validation/projection failures use the redacted `mutation-failed` code.
 
 ## Generation, validation, and idempotency
 
@@ -22,7 +22,7 @@ Each create, update, or delete request includes `expectedGeneration`. A request
 
 `planFleetAgentMutation` is deterministic and side-effect free. `executeFleetAgentMutation` validates the complete proposed roster through the existing structural and shared persona resolver, prepares generated/local/quarantine projections, and writes the roster authority atomically before applying derived projections. Equivalent create retries and delete requests for an already-absent agent are idempotent no-ops.
 
-Delete removes only the exact `<name>.env.generated` projection for the removed roster entry. Operator-owned `<name>.env.local`, legacy `<name>.env`, quarantine records, and unrelated projections remain untouched. An already-absent generated projection is treated as stale derived state, not as a failed mutation.
+Delete removes only the exact <name>.env.generated projection for the removed roster entry. Operator-owned <name>.env.local, legacy <name>.env, quarantine records, and unrelated projections remain untouched. An already-absent generated projection is treated as stale derived state, not as a failed mutation.
 
 ## Result and recovery
 
@@ -40,4 +40,4 @@ Mutation results are JSON-safe objects with `applied`, `authoritativeRoster`, `p
 }
 ```
 
-Dry-runs and idempotent no-ops report `authoritativeRoster: "unchanged"` and `projections: "not-applied"`; a complete mutation reports `"committed"` and `"complete"`. Recovery output identifies the authoritative roster path and regeneration action only. It never contains generated/local/quarantine values, credentials, or command text. A recovery result exits non-zero because the authoritative roster was persisted but derived projections require regeneration. Regenerate projections from the roster before attempting another mutation.
+Dry-runs and idempotent no-ops report authoritativeRoster: "unchanged" and projections: "not-applied"; a complete mutation reports "committed" and "complete". Recovery output identifies the authoritative roster path and regeneration action only. It never contains generated/local/quarantine values, credentials, or command text. A recovery result exits non-zero because the authoritative roster was persisted but derived projections require regeneration. Regenerate projections from the roster before attempting another mutation.

docs/fleet/reference/cli.md

@@ -1,27 +1,46 @@
 # Fleet Control-Plane CLI
 
-The local roster-v2 control plane is `mosaic fleet`.
+The local desired-state surface is mosaic fleet. It is distinct from the gateway-backed mosaic agent catalog and from legacy compatibility commands that act on roster v1.
 
-```text
-mosaic fleet apply --expected-generation <n> [--dry-run]
-mosaic fleet reconcile --expected-generation <n> [--dry-run]
-mosaic fleet start [name] --expected-generation <n> [--dry-run]
-mosaic fleet stop [name] --expected-generation <n> [--dry-run]
-mosaic fleet restart [name] --expected-generation <n> [--dry-run]
-mosaic fleet status [name]
+## Roster-v2 desired-state commands
+
+| Command                                                    | Effect                                         | Generation | Output                     |
+| ---------------------------------------------------------- | ---------------------------------------------- | ---------- | -------------------------- |
+| mosaic fleet get <name>                                    | Read one authoritative agent                   | no         | One JSON object            |
+| mosaic fleet plan <create\|update\|delete> ...             | Validate proposed CRUD and projections         | required   | One JSON object; no writes |
+| mosaic fleet create ... [--dry-run] [--persisted-start]    | Add desired state; default enabled/stopped     | required   | One JSON object            |
+| mosaic fleet update <name> ... [--dry-run]                 | Replace mutable agent fields                   | required   | One JSON object            |
+| mosaic fleet delete <name> ... [--dry-run]                 | Remove roster member/generated projection      | required   | One JSON object            |
+| mosaic fleet apply ... [--dry-run]                         | Plan or converge projections/lifecycle         | required   | One JSON object            |
+| mosaic fleet reconcile ... [--dry-run]                     | Alias of the same convergence contract         | required   | One JSON object            |
+| mosaic fleet start\|stop\|restart [<name>] ... [--dry-run] | Exact one-shot lifecycle action                | required   | One JSON object            |
+| mosaic fleet status [<name>]                               | Observe desired/managed/runtime state          | no         | One JSON object            |
+| mosaic fleet verify                                        | Strict observational drift/ownership gate      | no         | One JSON object            |
+| mosaic fleet doctor                                        | Classify local drift and recovery context      | no         | One JSON object            |
+| mosaic fleet migrate-v1 preview ...                        | Non-mutating field-complete migration evidence | no         | One JSON object            |
+
+CRUD syntax and full payload shape are documented in [agent mutations](agent-mutations.md). Reconciliation syntax:
+
+```fleet-synopsis
+mosaic fleet apply --expected-generation <n>
+mosaic fleet reconcile --expected-generation <n>
+mosaic fleet start [<name>] --expected-generation <n> [--dry-run]
+mosaic fleet stop [<name>] --expected-generation <n> [--dry-run]
+mosaic fleet restart [<name>] --expected-generation <n> [--dry-run]
+mosaic fleet status [<name>]
 mosaic fleet verify
 mosaic fleet doctor
 mosaic fleet migrate-v1 preview --source <path> --decisions <path> --observations <path>
 ```
 
-`migrate-v1 preview` is non-mutating: it emits value-free v1 inventory, a canonical semantically
-validated v2 candidate when ready, sanitized environment dispositions, and non-executable recovery
-evidence. It has no write, apply, canary, or rollback option. Missing preview inputs also return one stable
-blocked JSON object and a non-zero exit, rather than Commander text. See
-[the migration preview contract](../migration/v1-to-v2.md).
+`get` is the read/show operation for one v2 agent. Full roster parsing and semantic validation occur on every v2 mutation/reconcile path; there is no separate mutable “config store.” The executable JSON Schema and validated example provide offline structural evidence. The PRD requires an explicit programmatic mosaic fleet validate operation, but the current CLI does not expose one; do not substitute another command or claim that requirement is delivered. This remains an implementation gap for #758.
 
-`apply` and `reconcile` use roster desired state. `start`, `stop`, and `restart` are exact local one-shot lifecycle effects and never persist a desired-state edit. `status`, `verify`, and `doctor` are observational.
+## JSON and exit behavior
 
-Commands emit one JSON object. Handled precondition errors emit `{ "error": { "code": "..." } }` and exit non-zero. Partial derived/lifecycle effects use explicit `authoritativeRoster`, `projections`, `lifecycle`, and bounded `recovery` fields; they never claim rollback. Any additive `cleanup` diagnostic also exits non-zero, even where known effects are complete: it is not a clean completion and the lock requires inspection before retry.
+Roster-v2 CRUD and reconciler precondition failures emit { "error": { "code": "..." } } and exit non-zero. Migration preview has its own result envelope: a non-ready preview emits { "status": "blocked", "blockers": [...] } and exits non-zero rather than using the CRUD/reconciler error object. Use both exit status and command-specific state fields. A partial reconciliation result distinguishes `authoritativeRoster`, `projections`, `lifecycle`, `recovery`, and optional `cleanup`; it never claims automatic rollback. `verify` exits non-zero for drift, ownership failure, or unmanaged sessions. Sensitive legacy values, credentials, and rejected command text are never printed.
 
-This control plane is separate from the gateway-backed `mosaic agent` catalog. It is local-only and rejects remote/connector lifecycle mutation, arbitrary command/channel/secret input, and unproven tmux ownership.
+## Compatibility and scope
+
+Roster-v1 initialization, provisioning, profiles/personas, and historical fleet add/remove remain compatibility surfaces, not roster-v2 CRUD aliases. New v2 automation should use the table above. migrate-v1 preview writes nothing and has no cutover, canary, or rollback option.
+
+mosaic agent is a separate catalog/transport surface; it does not own <MOSAIC_HOME>/fleet/roster.yaml desired state. Remote/SSH reconciliation, connector mutation, arbitrary commands/channels, secret references, and gateway convergence are rejected or outside scope.

docs/fleet/reference/generated-env-boundary.md

@@ -1,6 +1,6 @@
 # Fleet Generated Environment Boundary
 
-**Card:** FCM-M2-001 · **Issue:** #758 · **Status:** unreleased/card-local
+**Card:** FCM-M2-001 · **Issue:** #758 · **Status:** merged contract
 
 The local fleet roster is the desired-state authority. A launch reads a deterministic,
 roster-derived generated projection and an optional strictly data-only local file; neither file is
@@ -8,14 +8,14 @@ a second roster or a command configuration surface.
 
 ## Paths and ownership
 
-For agent `<name>` under `<MOSAIC_HOME>/fleet/agents/`:
+For agent <name> under <MOSAIC_HOME>/fleet/agents/:
 
 | Path                  | Owner                    | Purpose                                                                                                                      |
-| ----------------------- | ------------------------ | ---------------------------------------------------------------------------------------------------------------------------- |
-| `<name>.env.generated`  | Mosaic projection writer | Complete deterministic launch data rendered from the authoritative roster.                                                   |
-| `<name>.env.local`      | Operator                 | Optional, constrained local machine data. It cannot shadow generated keys.                                                   |
-| `<name>.env`            | Legacy input only        | Read once during projection generation, then regenerated/relocated or privately quarantined. It is never a launch authority. |
-| `<name>.env.quarantine` | Mosaic quarantine        | Mode-`0600` private record of forbidden legacy input; it is never read by the launcher.                                      |
+| --------------------- | ------------------------ | ---------------------------------------------------------------------------------------------------------------------------- |
+| <name>.env.generated  | Mosaic projection writer | Complete deterministic launch data rendered from the authoritative roster.                                                   |
+| <name>.env.local      | Operator                 | Optional, constrained local machine data. It cannot shadow generated keys.                                                   |
+| <name>.env            | Legacy input only        | Read once during projection generation, then regenerated/relocated or privately quarantined. It is never a launch authority. |
+| <name>.env.quarantine | Mosaic quarantine        | Mode-`0600` private record of forbidden legacy input; it is never read by the launcher.                                      |
 
 The systemd templates do not load either environment file. They invoke Bash with a fixed, cleared
 bootstrap environment; the launcher reads and validates `.env.generated` and `.env.local` itself before
@@ -44,7 +44,7 @@ MOSAIC_AGENT_WORKDIR=<absolute roster work directory>
 MOSAIC_TMUX_SOCKET=<roster socket or empty>
 ```
 
-The generated launch contract supports only `claude`, `codex`, `opencode`, and `pi`. `fleet add`
+The generated launch contract supports only `claude`, `codex`, `opencode`, and `pi`. fleet add
 uses that same runtime authority and rejects any other runtime before it writes the roster or changes
 projection, local, or quarantine files. The legacy dogfood stub on its separate `mosaic-factory`
 socket remains an observability canary; it has no generated-launch adapter and cannot be added through
@@ -62,7 +62,7 @@ Local paths must be safe absolute paths and the interval must be a positive inte
 quoted/export syntax, duplicate keys, unknown keys, generated-key shadowing, sensitive key names,
 and `MOSAIC_AGENT_COMMAND` are rejected. The launcher derives the only executable command from the
 validated runtime, model, and reasoning data; no arbitrary command compatibility path exists. When a
-Pi runtime writes a fresh `<name>.hb.native` marker, its native heartbeat remains authoritative; the
+Pi runtime writes a fresh <name>.hb.native marker, its native heartbeat remains authoritative; the
 shell sidecar resumes its `status=ok` fallback only after that marker is stale or absent.
 
 ## Legacy disposition
@@ -79,13 +79,13 @@ consolidated downstream interface packet. Status is deliberately separated from
 product release version has been evidenced for this interface set.
 
 | Interface               | Canonical public path and version                                                                                                               | Tracker/release status                                                                                    | Downstream limit                                                                              |
-| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- |
-| M1 structural compiler  | `parseRosterV2` in `packages/mosaic/src/fleet/roster-v2.ts`; schema `docs/fleet/reference/roster-v2.schema.json`; roster `version: 2`             | FCM-M1-001 is recorded done, merged as #764 (`aa5b43b`); no released product version is asserted here.                | Parse YAML/JSON and canonicalize a supplied v2 site roster without writes.                    |
-| M1 semantic resolver    | `validateRosterV2Semantics` in `packages/mosaic/src/fleet/roster-v2.ts`; baseline `framework/fleet/roles/` plus `roles.local/`                    | FCM-M1-002 remains `in-progress` in `docs/TASKS.md`; unreleased.                                                      | Reuse the shared resolver only; no parallel role resolver or lifecycle action.                |
-| M1 disposition evidence | `packages/mosaic/src/fleet/example-profile-dispositions.ts`; `docs/fleet/migration/example-profile-disposition.md`; retained fixture `version: 1` | FCM-M1-003 remains `not-started` in `docs/TASKS.md`; unreleased even though these checkout artifacts are inspectable. | Inspect fixture/profile/service disposition evidence only; it is not migration authorization. |
-| M2 generated boundary   | `packages/mosaic/src/fleet/generated-env-boundary.ts`; generated projection contract in this document                                             | FCM-M2-001 card-local and uncommitted; unreleased.                                                                    | Render/write a roster-derived projection; local input is never authority.                     |
+| ----------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- |
+| M1 structural compiler  | `parseRosterV2` in `packages/mosaic/src/fleet/roster-v2.ts`; schema `docs/fleet/reference/roster-v2.schema.json`; roster version: 2             | FCM-M1-001 is recorded done, merged as #764 (`aa5b43b`); no released product version is asserted here.    | Parse YAML/JSON and canonicalize a supplied v2 site roster without writes.                    |
+| M1 semantic resolver    | `validateRosterV2Semantics` in `packages/mosaic/src/fleet/roster-v2.ts`; baseline `framework/fleet/roles/` plus `roles.local/`                  | FCM-M1-002 merged as #768 (`a5e8e55`); no released product version is asserted here.                      | Reuse the shared resolver only; no parallel role resolver or lifecycle action.                |
+| M1 disposition evidence | `packages/mosaic/src/fleet/example-profile-dispositions.ts`; `docs/fleet/migration/example-profile-disposition.md`; retained fixture version: 1 | FCM-M1-003 merged as #770 (`e9c4aa3`); checkout evidence remains validation, not migration authorization. | Inspect fixture/profile/service disposition evidence only; it is not migration authorization. |
+| M2 generated boundary   | `packages/mosaic/src/fleet/generated-env-boundary.ts`; generated projection contract in this document                                           | FCM-M2-001 merged as #772 (`191efae`); no released product version is asserted here.                      | Render/write a roster-derived projection; local input is never authority.                     |
 
-The canonical source remains `<MOSAIC_HOME>/fleet/roster.yaml` for the current local fleet path.
+The canonical source remains <MOSAIC_HOME>/fleet/roster.yaml for the current local fleet path.
 Generated environment data is a rebuildable projection, not an operator-editable source of membership,
 runtime policy, or lifecycle state.
 

docs/fleet/reference/lifecycle-transitions.md

@@ -1,14 +1,21 @@
 # Local Fleet Lifecycle Transitions
 
-FCM-M3-001 uses the roster-v2 `lifecycle.enabled` and `lifecycle.desired_state` fields as the only desired-state authority. Systemd, tmux, generated environment files, and heartbeats are derived or observed state.
+Roster-v2 `lifecycle.enabled` and `lifecycle.desired_state` are the only persisted lifecycle authority. Systemd, tmux, generated environment, and heartbeat state are derived or observed.
 
-| Command                           | Desired-state write | Runtime effect                                                                                                             | Preconditions                                                                                                             |
-| --------------------------------- | ------------------- | -------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------- |
-| `fleet apply` / `fleet reconcile` | Never               | Rebuilds projections, then starts only enabled agents desired `running`; stops disabled or desired-`stopped` roster agents | Current generation; private managed paths; valid projections; proven holder ownership; no unmanaged named-socket sessions |
-| `fleet start <name>`              | Never               | One-shot exact `mosaic-agent@<name>.service` start                                                                         | Current generation; exact enabled roster name; proven ownership                                                           |
-| `fleet stop <name>`               | Never               | One-shot exact service stop                                                                                                | Current generation; exact roster name; proven ownership                                                                   |
-| `fleet restart <name>`            | Never               | One-shot exact service restart                                                                                             | Current generation; exact roster name; proven ownership                                                                   |
+| Event                     | Desired-state write                                                        | Runtime effect                                                                              | Safety boundary                                                                                                                                             |
+| ------------------------- | -------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| fleet create              | Adds enabled/stopped by default; `--persisted-start` records running       | None                                                                                        | Generation-guarded; validates full roster/projections.                                                                                                      |
+| fleet update              | Preserves the existing enabled/desired state; updates other mutable fields | None                                                                                        | Generation-guarded; stable name and lifecycle are immutable on this path.                                                                                   |
+| fleet delete              | Removes exact roster member                                                | None                                                                                        | Removes only generated projection; retains local/quarantine evidence.                                                                                       |
+| fleet apply / `reconcile` | Never                                                                      | Rebuilds projections; starts only enabled/running; stops disabled or stopped roster members | Current generation, private lock/paths, semantic validity, holder ownership, no unmanaged named-socket sessions.                                            |
+| fleet start <name>        | Never                                                                      | One-shot exact service start                                                                | Exact enabled roster name and proven ownership.                                                                                                             |
+| fleet stop <name>         | Never                                                                      | One-shot exact service stop                                                                 | Exact roster name and proven ownership.                                                                                                                     |
+| fleet restart <name>      | Never                                                                      | One-shot exact service restart                                                              | Exact enabled roster name and proven ownership.                                                                                                             |
+| Reboot/service activation | Never                                                                      | Current installation may activate enabled units without honoring roster lifecycle           | **Held for FCM-M3-002:** boot preservation for stopped/disabled agents is not yet proven; inspect/disable units rather than assuming lifecycle-safe reboot. |
+| v1 migration preview      | Never                                                                      | None                                                                                        | Observed active+present maps running; inactive+missing maps stopped; ambiguity blocks.                                                                      |
+| Cutover/canary            | Held for FCM-M4-002                                                        | Not implemented by preview                                                                  | Must preserve every observed stopped state.                                                                                                                 |
+| Rollback                  | Held for FCM-M4-002                                                        | Not implemented                                                                             | Must restore selected authority/projections without surprise starts or unmanaged targeting.                                                                 |
 
-A stopped roster agent is never started by `apply` or `reconcile`. Direct lifecycle commands are explicit one-shot actions and do not change persisted desired state. Use roster CRUD with the explicit persisted-start option to change that desired state.
+Explicit apply/reconcile never starts a stopped roster agent. Direct lifecycle commands are explicit one-shot actions and do not persist intent. The current update operation preserves `existing.lifecycle`; there is no delivered generation-guarded CRUD operation for changing durable lifecycle after creation. Reboot preservation for stopped/disabled agents is not yet guaranteed because current enabled units and launcher projections do not carry the persisted lifecycle fence; that acceptance evidence remains FCM-M3-002.
 
-All mutations require `--expected-generation <n>` and acquire one private roster-adjacent reconciliation lock before projection or lifecycle effects. Missing or stale generations and concurrent writers fail before effects; the lock is released after success, partial failure, or thrown lifecycle failure. Stale, ownership, unmanaged-session, unsupported-runtime, path, projection, and lifecycle-precondition failures return stable redacted JSON errors and a non-zero exit. No command targets a fuzzy tmux name, arbitrary socket, arbitrary command, channel, secret, or generated file as authority.
+Missing/stale generation, concurrent writer, unsafe path, ownership mismatch, unmanaged session, unsupported runtime, invalid projection, and lifecycle precondition failures return stable redacted JSON and non-zero status. No command targets fuzzy names, arbitrary sockets/commands/channels/secrets, or generated files as authority. Legacy sensitive values are never printed.

docs/fleet/reference/role-classes.md

@@ -16,7 +16,7 @@ Only these legacy class aliases are recognized:
 
 No other alias is inferred. In particular, `worker`, `analyst`, and `canary` are custom classes only
 when an operator supplies a readable contract for that exact class. Tess and Ultron are instance
-names, not classes. `agents[].alias` is display-only and cannot grant authority.
+names, not classes. agents[].alias is display-only and cannot grant authority.
 
 Canonicalization happens before role lookup. For example, requesting `implementer` resolves
 `code.md`; a separate `roles.local/implementer.md` cannot redefine the legacy alias. A canonical

docs/fleet/reference/roster-v2-fields.md

@@ -50,36 +50,38 @@ agents:
 
 ## Root fields
 
-| Field        | Required | Constraint            | Meaning                                                                                                                               |
-| ------------ | -------- | --------------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
-| `version`    | yes      | integer constant `2`  | Identifies this contract. Version `1` is explicitly rejected by this compiler and remains on the existing v1 path until M4 migration. |
-| `generation` | yes      | positive safe integer | Desired-state generation. M2 uses it for mutation guards; M1 does not mutate it.                                                      |
-| `transport`  | yes      | constant `tmux`       | M1–M5 support local tmux only.                                                                                                        |
-| `tmux`       | yes      | strict object         | Explicit local socket and holder-session configuration.                                                                               |
-| `defaults`   | yes      | strict object         | Default work directory and one supported local runtime.                                                                               |
-| `runtimes`   | yes      | non-empty object      | Declared local runtime reset policy map.                                                                                              |
-| `agents`     | yes      | non-empty array       | Local fleet entries. Duplicate stable names are rejected.                                                                             |
+| Field        | Required | Default | Constraint            | Meaning                                                                                           |
+| ------------ | -------- | ------- | --------------------- | ------------------------------------------------------------------------------------------------- |
+| `version`    | yes      | none    | integer constant `2`  | Identifies this contract. Version `1` stays on the compatibility path pending explicit migration. |
+| `generation` | yes      | none    | positive safe integer | Desired-state generation and mutation/reconcile concurrency fence.                                |
+| `transport`  | yes      | none    | constant `tmux`       | M1–M5 support local tmux only.                                                                    |
+| `tmux`       | yes      | none    | strict object         | Explicit local socket and holder-session configuration.                                           |
+| `defaults`   | yes      | none    | strict object         | Default work directory and one supported local runtime.                                           |
+| `runtimes`   | yes      | none    | non-empty object      | Declared local runtime reset policy map.                                                          |
+| `agents`     | yes      | none    | non-empty array       | Local fleet entries. Duplicate stable names are rejected.                                         |
 
 ## Nested fields
 
+All nested fields in the v2 schema are required and have no implicit default. CRUD `create` is the only higher-level convenience: it records lifecycle.enabled: true and desired_state: stopped unless `--persisted-start` explicitly records running. That convenience still performs no runtime action.
+
 | Path                                               | Required | Constraint                                                                                                   |
-| ---------------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------- |
-| `tmux.socket_name`                                   | yes      | `[A-Za-z0-9_.-]*`; empty string means the literal default tmux server, while a non-empty value names a socket |
-| `tmux.holder_session`                                | yes      | non-empty `[A-Za-z0-9_.-]+`                                                                                   |
+| -------------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------ |
+| `tmux.socket_name`                                 | yes      | [A-Za-z0-9_.-]\*; empty string means the literal default tmux server, while a non-empty value names a socket |
+| `tmux.holder_session`                              | yes      | non-empty [A-Za-z0-9_.-]+                                                                                    |
 | `defaults.working_directory`                       | yes      | non-empty string                                                                                             |
 | `defaults.runtime`                                 | yes      | `claude`, `codex`, `opencode`, or `pi`; it must be declared in `runtimes`                                    |
-| `runtimes.<runtime>.reset_command`                   | yes      | non-empty string; runtime key must be a supported local runtime                                               |
-| `agents[].name`                                      | yes      | unique `[A-Za-z0-9][A-Za-z0-9_.-]*` stable machine identity                                                   |
-| `agents[].alias`                                     | yes      | non-empty display string                                                                                      |
-| `agents[].class`                                     | yes      | `[a-z][a-z0-9-]*`; structural only in M1, semantic role resolution is FCM-M1-002                              |
-| `agents[].runtime`                                   | yes      | `claude`, `codex`, `opencode`, or `pi`; it must be declared in `runtimes`                                     |
-| `agents[].provider`, `model`, `working_directory`    | yes      | non-empty strings; provider/model capability resolution is a later card                                       |
-| `agents[].reasoning`                                 | yes      | `low`, `medium`, or `high`                                                                                    |
-| `agents[].tool_policy`                               | yes      | `[a-z][a-z0-9-]*`; structural only in M1                                                                      |
-| `agents[].persistent_persona`, `reset_between_tasks` | yes      | booleans                                                                                                      |
-| `agents[].lifecycle.enabled`                         | yes      | boolean; stored now, reconciled in FCM-M3-001                                                                 |
-| `agents[].lifecycle.desired_state`                   | yes      | `running` or `stopped`                                                                                        |
-| `agents[].launch.yolo`                               | yes      | boolean; structured data only, not an arbitrary command escape hatch                                          |
+| runtimes.<runtime>.reset_command                   | yes      | non-empty string; runtime key must be a supported local runtime                                              |
+| agents[].name                                      | yes      | unique [A-Za-z0-9][A-Za-z0-9_.-]\* stable machine identity                                                   |
+| agents[].alias                                     | yes      | non-empty display string                                                                                     |
+| agents[].class                                     | yes      | [a-z][a-z0-9-]\*; structural only in M1, semantic role resolution is FCM-M1-002                              |
+| agents[].runtime                                   | yes      | `claude`, `codex`, `opencode`, or `pi`; it must be declared in `runtimes`                                    |
+| agents[].provider, `model`, `working_directory`    | yes      | non-empty strings; provider/model capability resolution is a later card                                      |
+| agents[].reasoning                                 | yes      | `low`, `medium`, or `high`                                                                                   |
+| agents[].tool_policy                               | yes      | [a-z][a-z0-9-]\*; structural only in M1                                                                      |
+| agents[].persistent_persona, `reset_between_tasks` | yes      | booleans                                                                                                     |
+| agents[].lifecycle.enabled                         | yes      | boolean; stored now, reconciled in FCM-M3-001                                                                |
+| agents[].lifecycle.desired_state                   | yes      | `running` or `stopped`                                                                                       |
+| agents[].launch.yolo                               | yes      | boolean; structured data only, not an arbitrary command escape hatch                                         |
 
 ## Semantic handoff
 
@@ -97,12 +99,12 @@ Semantic validation:
   `operator-interaction` to `interaction`;
 - canonicalizes `tool_policy` with the same exact alias table;
 - rejects protected class/tool-policy mismatches in either direction, while accepting
-  `class: operator-interaction` with `tool_policy: operator-interaction` as canonical
+  class: operator-interaction with tool_policy: operator-interaction as canonical
   `interaction`;
 - derives immutable protected authority only from canonical class; and
 - accepts custom baseline or `roles.local` classes without granting protected authority.
 
-`agents[].alias` remains display-only. Tess and Ultron are instance names, never semantic classes.
+agents[].alias remains display-only. Tess and Ultron are instance names, never semantic classes.
 Canonicalization happens before role-layer lookup, so a legacy-named override cannot redefine an
 alias as separate authority. See [Role Classes and Authority](./role-classes.md) and
 [Customize Fleet Roles](../how-to/customize-roles.md).
@@ -112,7 +114,7 @@ lifecycle mutation.
 
 ## Fail-closed boundary
 
-Every object is `additionalProperties: false`. The compiler rejects unknown, missing, malformed,
+Every object is additionalProperties: false. The compiler rejects unknown, missing, malformed,
 and wrong-type fields before producing a model. It specifically rejects remote/SSH/host/socket
 per-agent fields, connector blocks, secret references, channel fields, arbitrary command fields,
 and gateway fields because they are unsupported in the local-tmux M1 contract. It does not silently

docs/fleet/reference/status-and-drift.md

@@ -1,13 +1,25 @@
 # Local Fleet Status and Drift
 
-`mosaic fleet status [name]`, `verify`, and `doctor` are observational roster-v2 commands. They emit one JSON result and do not write projections, change desired state, start services, stop services, restart services, or mutate tmux.
+mosaic fleet status [<name>], `verify`, and `doctor` are observational roster-v2 commands. They emit one JSON result and do not write projections, mutate desired state, operate lifecycle, or change tmux.
 
-The report distinguishes:
+## State dimensions
 
-- `missing-session`: an enabled agent desired `running` has no exact roster-named tmux session.
-- `unexpected-session`: a desired-`stopped` agent still has its exact session.
-- `disabled-running`: a disabled roster agent has its exact session.
-- `unmanagedSessions`: sessions on the configured named socket that are neither the exact holder nor an exact roster agent.
-- `holder`: `owned`, `missing`, or `ownership-mismatch` after exact holder, private install identity, and complete global tmux environment validation.
+- **Desired:** roster membership, generation, enabled flag, and persisted running/stopped target.
+- **Managed/derived:** generated environment and expected exact service/session topology.
+- **Observed by current roster-v2 commands:** systemd active state, tmux presence, exact holder ownership, and unmanaged sessions.
 
-`doctor` and `status` classify rather than adopt, destroy, or repair unmanaged state. `verify` is observational too, but exits non-zero if ownership cannot be proven, unmanaged sessions exist, or drift is present. Reconciliation fails closed under those conditions and never kills or adopts an unmanaged session.
+Implemented drift classifications include:
+
+- `missing-session`: enabled/desired-running agent lacks its exact session;
+- `unexpected-session`: desired-stopped agent has its exact session;
+- `disabled-running`: disabled roster agent has its exact session;
+- `unmanagedSessions`: named-socket sessions that are neither exact holder nor roster agent;
+- `holder`: `owned`, `missing`, or `ownership-mismatch` after private identity and global environment checks.
+
+Generated projection failures/staleness are surfaced by plan/apply preparation and bounded recovery fields rather than adopted as configuration. Heartbeat remains wider-fleet observational evidence, never desired state, but the current roster-v2 `status`, `doctor`, and `verify` commands do not read heartbeat files. A provable removed-agent projection may be treated as stale derived state during deletion, but general projection-orphan classification and installed source-versus-asset revision mismatch remain FCM-M4-002/M5-002 holds; current commands must not claim those future checks.
+
+## Command behavior
+
+`status` and `doctor` classify rather than adopt, destroy, or repair. `verify` is observational too, but exits non-zero if ownership cannot be proven, unmanaged sessions exist, or drift is present. Reconciliation fails closed under those conditions and never kills or adopts an unmanaged session.
+
+Doctor/error output uses stable codes and bounded recovery context. Migration, quarantine, lifecycle, status, and troubleshooting output never prints a legacy sensitive value, credential, or privileged command text.

docs/guides/dev-guide.md

@@ -8,8 +8,9 @@
 4. [Adding New Agent Tools](#adding-new-agent-tools)
 5. [Adding New MCP Tools](#adding-new-mcp-tools)
 6. [Database Schema and Migrations](#database-schema-and-migrations)
-7. [API Endpoint Reference](#api-endpoint-reference)
-8. [Local Fleet Canary](./fleet-local-canary.md)
+7. [Claude Code Skill Bridge](#claude-code-skill-bridge)
+8. [API Endpoint Reference](#api-endpoint-reference)
+9. [Local Fleet Canary](./fleet-local-canary.md)
 
 ---
 
@@ -353,6 +354,37 @@ defined there.
 
 ---
 
+## Claude Code Skill Bridge
+
+The framework's canonical skill root is `~/.config/mosaic/skills/`; Claude Code
+requires registrations under `~/.claude/skills/`. The implementation in
+`packages/mosaic/src/commands/skill.ts` owns only direct-child symlinks whose
+resolved target remains inside the canonical root.
+
+Security invariants:
+
+1. Validate the user-supplied name before filesystem access against
+   `[A-Za-z0-9][A-Za-z0-9._-]*`. Separators, control characters, whitespace,
+   `..`, absolute paths, and leading `-` are invalid; filesystem-derived invalid
+   names are escaped before terminal output.
+2. Never replace a real file, directory, foreign symlink, or live misdirected
+   symlink in the Claude skill directory.
+3. Repair a dangling link only when its lexical target is inside the canonical
+   Mosaic skills root.
+4. Unregister only a symlink pointing inside that root.
+5. Enumerate canonical directories at runtime; never hardcode framework skill
+   names.
+
+`finalizeStage` reconciles after wizard/framework synchronization, and
+`runFrameworkReseed` reconciles after the sync-only `mosaic update` path. A
+foreign conflict is reported but does not prevent unrelated canonical skills
+from registering. Filesystem tests use injected temporary roots in
+`skill.spec.ts`, `finalize-skills.spec.ts`, and `update-checker.reseed.spec.ts`.
+
+M1 intentionally manages Claude Code only. Pi's Mosaic launcher can discover the
+canonical root directly. Codex still relies on the existing full skill-sync
+linker and needs separate parity analysis before this lifecycle API is extended.
+
 ## API Endpoint Reference
 
 All endpoints are served by the gateway at `http://localhost:14242` by default.

docs/guides/lease-broker-operations.md

@@ -0,0 +1,44 @@
+# Lease broker operations
+
+Place the socket and state file in a dedicated directory with mode `0700`. Start the packaged daemon with:
+
+```bash
+python3 "$MOSAIC_HOME/tools/lease-broker/daemon.py" \
+  --socket /run/user/1000/mosaic-lease/broker.sock \
+  --state /run/user/1000/mosaic-lease/state.json
+```
+
+The broker refuses an existing parent directory whose mode is not exactly `0700`, an existing state file not at `0600`, corrupt/incompatible state, or an already-existing socket path. After bind it sets the socket to `0600`. It never silently unlinks a pre-existing socket. On normal termination it unlinks only the socket inode it created, so it does not remove a replacement path.
+
+Before launching Claude, Claudex, or Pi, export the socket path; `mosaic` then runs the runtime through the packaged register-and-exec wrapper:
+
+```bash
+export MOSAIC_LEASE_BROKER_SOCKET=/run/user/1000/mosaic-lease/broker.sock
+mosaic claude # or: mosaic claudex, mosaic yolo claudex, mosaic pi
+```
+
+The wrapper obtains a broker-minted session ID, creates a private `generation-<session>.state` file beside the socket, and `exec`s the runtime without changing its PID/starttime anchor. The all-tools Claude `PreToolUse` hook and Pi `tool_call` handler inherit that identity and read the current generation from the file. Claudex retains its isolated proxy environment and config directory; Mosaic merges the mandatory all-tools and compaction-lifecycle hooks into that isolated `settings.json` before invoking the same wrapper. PRDY init/update, QA remediation, coord, orchestrator, and fleet launchers also converge on this boundary. Broker registration failure, unsafe isolated settings, unsafe generation state, or missing identity denies launch/tool execution fail-closed; broker timeout/unavailability and malformed replies also block tools.
+
+Claude `PreCompact` and `SessionStart(compact)` hooks and Pi pre-/post-compaction handlers invoke `revoke-lease.py`. Pi `session_start` reload/new/resume/fork and Claude resume/clear advance the locked generation before revocation, so a replacement session inherits no lease even when PID/starttime stay unchanged. Do not invoke the revoker manually as a way to restore authority; it only removes authority. If a lifecycle hook reports failure, stop consequential work and repair broker/generation-state availability before re-verification.
+
+Run the permanent launch inventory locally with:
+
+```bash
+python3 packages/mosaic/framework/tools/lease-broker/check-runtime-launches.py --root .
+```
+
+The same check runs in the Mosaic package test suite and therefore in root CI. Any direct Claude/Pi binary launch must be replaced with `launch-runtime.py`, `execLeaseGatedRuntime`, or the gated `mosaic` runtime command; do not add static allowlist exceptions.
+
+Clients must complete the request boundary before waiting for a reply. After sending the single JSON object and its terminating newline, the client **MUST half-close the socket's write side** (`shutdown(SHUT_WR)` in POSIX clients; `socket.end()` in Node) and only then await the response. Merely calling `write()` and waiting is invalid: the broker waits for EOF to enforce the exact-one-frame contract and fails closed at its one-second deadline. Do not replace `end()` with `write()` in client helpers. A delayed second frame remains malformed and is rejected.
+
+`mosaic_context_recover` is the only unverified mutator class. Its durable `mosaic-context-refresh` skill is a thin wrapper over `tools/lease-broker/recover-context.py`: `begin` has the broker rebuild the validated `B_payload`/`H_payload`, revoke first, and mint a new `PENDING_DELIVERY` receipt challenge; `complete` accepts neither receipt text nor a challenge argument. Claude maps only the exact direct recovery executable/validated arguments to this exempt tool identity; ordinary `Bash` remains gated. Pi exposes only the `mosaic_context_recover` custom tool; ordinary `bash` and all other tools remain gated. A normal-path receipt cannot be replayed through recovery because each retry begins a distinct recovery cycle and recovery completion cannot receive caller-presented evidence.
+
+Production daemon startup creates a separate private observer socket unless a test-only `--test-observer-file` fixture is selected. Claude's Stop hook sends its exact latest assistant entry and Pi's `message_end` handler sends only finalized assistant content to that authenticated transport; the broker public socket never accepts message text. This is byte-build and private out-of-process harness wiring only: do not activate it against a live daemon, live socket, systemd service, tmux session, or model-output stream outside the controlled integration procedure.
+
+Receipt honesty is load-bearing: absent, malformed, prefix-truncated, and observable adapter-mutated terminal receipts do not promote. A tail-only case is non-promoting only where the concrete terminal payload is malformed or observably incomplete. A tail-preserving middle drop is **not receipt-detectable**; it is the disclosed T-C injection-contract residual deferred to WI-7 server-side evidence. The receipt remains a T-A delivery/liveness prerequisite, never a safety, obedience, or residency proof. The framework skill is source-resident and bridge-projected on install/upgrade; do not hand-create a live runtime symlink.
+
+After a runtime exits, its `generation-<session>.state` file may be removed only after verifying that no process for that broker-minted session remains; stale files carry no lease authority but should be retained during incident analysis. After a broker crash, preserve the protected state file and restart only after verifying that no broker owns the socket. Restart intentionally clears all volatile VERIFIED leases. A leftover socket requires an operator to verify the owning service is stopped and remove that exact socket deliberately. Corrupt, oversized, symlinked, or non-regular state fails closed; do not overwrite it. Preserve it for incident review and establish new state only through an explicit operational decision, which invalidates prior sessions and tokens.
+
+## Security posture
+
+Directory `0700` plus socket/state `0600` is built-in same-principal hardening only: it excludes other UIDs but does **not** stop the same UID from unlinking and counterfeiting the socket. It therefore does not close T-C same-UID replacement. WI-1 does not provide a distinct-principal boundary. A stronger distinct-principal deployment requires an external protected proxy, ACL, or service boundary that clients cannot unlink or rebind and that preserves the authenticated client identity required by the broker's `SO_PEERCRED` and ancestry checks. Server-side branch protection remains the irreducible backstop.

docs/guides/user-guide.md

@@ -183,6 +183,8 @@ non-interactive use:
 --no-auto-launch    # Skip auto-launch of wizard after install
 ```
 
+Unrecognized flags or positional arguments fail before installation starts and print the supported-option usage.
+
 Or if installed globally:
 
 ```bash
@@ -307,6 +309,39 @@ mosaic quality-rails
 
 ---
 
+### Claude Code Skill Registration
+
+Mosaic stores canonical skills under `~/.config/mosaic/skills/`. Claude Code scans
+`~/.claude/skills/`, so Mosaic maintains one symlink per skill between those
+directories.
+
+```bash
+mosaic skill list
+mosaic skill register <name>
+mosaic skill unregister <name>
+```
+
+- `register` is idempotent and repairs a dangling Mosaic-owned link. Names use
+  the safe grammar `[A-Za-z0-9][A-Za-z0-9._-]*`; files, directories, foreign
+  symlinks, path traversal, absolute paths, and names beginning with `-` are
+  refused.
+- `unregister` is idempotent when no entry exists. It removes only symlinks that
+  point inside `~/.config/mosaic/skills/`; foreign entries are never removed.
+- `list` reports `registered`, `unregistered`, `dangling`, `foreign`,
+  `foreign-dangling`, or `misdirected` for each canonical or Claude entry.
+
+Install, wizard finalization, and `mosaic update` framework re-seeding reconcile
+every canonical skill automatically. A skill directory added after initial
+setup therefore receives its Claude bridge without a per-skill code change or
+manual `ln -s`. If Claude Code is already running, use `/reload-skills` or start
+a new session after registration so its in-process skill registry rescans.
+
+This command group is Claude-only in M1. Pi can consume Mosaic's canonical skill
+root through its Mosaic launcher configuration and does not need this Claude
+bridge. Codex has a separate link path managed by the legacy full skill-sync
+script; equivalent lifecycle management remains follow-up scope and is not
+changed here.
+
 ## Sub-package Commands
 
 Each Mosaic sub-package exposes its full API surface through the `mosaic` CLI.

docs/reports/compaction-refresh/830-documentation-checklist.md

@@ -0,0 +1,34 @@
+# #830 Documentation Completion Checklist
+
+## Required artifacts
+
+- [x] `docs/PRD.md` contains the M1 compaction-refresh trust-lifecycle requirements and acceptance criteria.
+- [x] Operator behavior and recovery are documented in `docs/guides/lease-broker-operations.md`.
+- [x] Developer architecture and protocol behavior are documented in `docs/architecture/compaction-revocation.md`, `lease-broker-protocol.md`, and `mutator-class-gate.md`.
+- [x] Security boundaries and residuals are documented in `docs/architecture/lease-broker-security.md` and `compaction-revocation.md`.
+- [x] `docs/SITEMAP.md` links the new architecture page.
+- [x] User-guide changes are not applicable: observers are mandatory internal runtime controls with no end-user workflow.
+- [x] OpenAPI/endpoint changes are not applicable: the broker remains an internal Unix-socket protocol, not a public HTTP API.
+
+## Contract coverage
+
+- [x] Claude and Claudex lifecycle signals, matchers, commands, and fail-closed behavior are documented.
+- [x] Pi pre-/post-compaction signals and session replacement reasons are documented.
+- [x] Private generation-file ownership, monotonic update, same-PID replacement, and failure fencing are documented.
+- [x] `revoke_lease` input purpose, broker response state, and denial behavior are documented.
+- [x] T12b/T30 explicitly names the bounded residual stale window and reports within-TTL **ALLOWED** / after-TTL **DENIED**.
+- [x] Documentation explicitly disclaims a within-window mutator-action bound.
+- [x] T-A, T-C, same-principal, and protected-branch boundaries are retained.
+
+## Structure and review
+
+- [x] New architecture content is under `docs/architecture/`.
+- [x] This report is under `docs/reports/compaction-refresh/`.
+- [x] Session evidence is under `docs/scratchpads/`.
+- [x] Documentation changes are in the same logical change set as code and tests.
+- [ ] Independent exact-head code and Opus security reviews pending coordinator sequencing after the deterministic-main rebase gate.
+
+## Publishing
+
+- [x] Canonical documentation remains in-repository.
+- [x] No external publishing target is required for this internal M1 control.

docs/reports/deferred/758-fleet-config-deferrals.md

@@ -0,0 +1,54 @@
+# FCM-M5-001 Fleet Documentation Deferrals and Holds
+
+**Issue:** #758 · **Branch:** `docs/758-fleet-config-operator-docs`
+
+These are accepted existing DAG boundaries, not omissions silently claimed as delivered.
+
+## FCM-M3-002 hold
+
+- Boot/reboot preservation for roster members persisted stopped or disabled.
+- Current installation may enable all agent units, while the launcher projection does not yet carry
+  `lifecycle.enabled` or `desired_state`; documentation therefore does not claim lifecycle-safe reboot.
+- Heartbeat/liveness integration into roster-v2 `status`, `doctor`, and `verify`; current observations
+  cover systemd active state, tmux sessions, holder ownership, and unmanaged sessions only.
+
+## FCM-M4-002 hold
+
+- Executable v1-to-v2 cutover, reversible canary, and rollback.
+- Stale-projection/orphan migration classification and current-host managed/unmanaged fixture coverage.
+- Any live migration, lifecycle, systemd/tmux/session, or rollback action.
+
+M5 docs describe prerequisites and the preview boundary only. A ready preview is not migration or rollback evidence.
+
+## Explicit validate-operation gap
+
+- `FCM-REQ-03` requires a documented programmatic `mosaic fleet validate` operation.
+- The current CLI does not expose that operation. Existing mutation/reconcile validation and the
+  documentation example test are not a replacement for the missing command.
+- FCM-M5-001 documents this implementation gap without inventing syntax, JSON, exit behavior, or an
+  owning implementation card. Parent #758 must remain open until the requirement is implemented and
+  evidenced or the PRD/DAG is explicitly revised through the authoritative process.
+
+## FCM-M5-002 hold
+
+- Deterministic source-versus-installed asset revision detection and safe refresh implementation.
+- Rolling local canary, independent validator certificate, final release evidence, merge-gate approval, and parent #758 closure.
+
+`operations/upgrade-assets.md` is therefore a fail-closed hold, not an invented procedure.
+
+## Compatibility interpretation
+
+The M0 cross-cutting row requiring every retained/migrated artifact to validate through the executable contract is satisfied by each artifact's declared executable disposition, not by forcing versioned v1 fixtures through the v2 parser:
+
+- retained examples are explicit `version: 1` fixtures validated by the production v1 parser;
+- canonical profiles validate through the shared baseline plus `roles.local` resolver;
+- the service preset validates through its production service-policy reader;
+- migration candidates validate through the production v2 compiler and shared semantic resolver.
+
+The executable disposition inventory rejects undeclared additions/removals and prevents silent legacy drift.
+
+## Repository-wide documentation structure
+
+The accepted #758 IA is the domain book under `docs/fleet/`. Creating global `USER-GUIDE`, `ADMIN-GUIDE`, or `DEVELOPER-GUIDE` books and cleaning unrelated pre-existing `docs/` root files are outside this bounded card. The repository sitemap links the fleet book. No HTTP/API/auth contract changed, so OpenAPI and endpoint-index updates are not applicable.
+
+Canonical documentation remains in-repository; no external publishing or generated publishing output is in scope. Parent issue #758 stays open through M5.

docs/reports/documentation/758-fleet-config-ia-closure.md

@@ -0,0 +1,44 @@
+# FCM-M5-001 Fleet Documentation IA Closure Evidence
+
+**Issue:** #758 · **Task:** FCM-M5-001
+
+## Artifact map
+
+- Fleet entry point and desired/observed decision tree: `docs/fleet/README.md`.
+- Concepts: `docs/fleet/concepts/` covers authority/projections, identity separation, role authority/leases, and the generated launch chain.
+- Operator workflows: `docs/fleet/how-to/` covers CRUD, lifecycle, interaction and validator instances, and role overrides.
+- Operations: `docs/fleet/operations/` covers reconciliation/recovery, quarantine, systemd/tmux troubleshooting, backup/restore boundaries, and upgrade-asset holds.
+- References: executable schema, complete field/default/constraint reference, CLI/JSON/exit behavior, lifecycle/status/drift, role authority, and generated environment boundary under `docs/fleet/reference/`.
+- Migration: preview field map, lifecycle preservation, backup/recovery prerequisites, aliases, and executable artifact dispositions under `docs/fleet/migration/`.
+- Navigation: `docs/SITEMAP.md` and the fleet entry point.
+
+## Acceptance mapping
+
+| Checklist area                                   | Evidence                                                                                                                                                                                                             |
+| ------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Roster authority and fail-closed legacy handling | Root PRD FCM-REQ-01/05/08; desired/observed and quarantine pages.                                                                                                                                                    |
+| Classes and authority                            | Root PRD FCM-REQ-07; role authority concept/reference; configurable interaction/validator how-tos.                                                                                                                   |
+| Lifecycle                                        | Root PRD FCM-REQ-04; lifecycle transition table and operator lifecycle how-to.                                                                                                                                       |
+| Local-only generated launch boundary             | Root PRD FCM-REQ-05/09; generated launch concept/reference.                                                                                                                                                          |
+| Complete DAG and artifact inventory              | `docs/TASKS.md`; M0 inventory; executable disposition tests.                                                                                                                                                         |
+| IA pages                                         | Every path named by the M0 checklist exists and is linked from `docs/fleet/README.md`.                                                                                                                               |
+| Examples                                         | `docs/fleet/examples/roster-v2.yaml` validates through production v2 compiler/shared resolver; shipped artifact dispositions validate through declared production readers.                                           |
+| Links                                            | Deterministic local Markdown link test covers the entire fleet book and sitemap, including local heading-fragment resolution.                                                                                      |
+| Sensitive/example safety                         | Validator scans backtick- and tilde-fenced fleet-book examples plus the canonical roster for sensitive-looking keys, common credential formats (including Anthropic, OpenAI project, and Stripe restricted keys), path-qualified privileged commands, package-manager/root commands, arbitrary command override, and hardcoded Tess/Ultron identities; findings report only file/block and violation kind, never matched values. |
+| Holds                                            | `docs/reports/deferred/758-fleet-config-deferrals.md` records M3-002, M4-002, M5-002, compatibility, and repository-structure boundaries.                                                                            |
+
+## Documentation completion checklist
+
+- [x] Root PRD exists and remains the #758 requirements authority.
+- [ ] The accepted project-specific fleet book is indexed, but it is not complete against `FCM-REQ-03`: the required explicit programmatic `mosaic fleet validate` operation is not implemented. The CLI reference and deferral report record this gap without inventing behavior.
+- [x] Sitemap links the fleet entry point and operator-critical pages.
+- [x] No HTTP/API/auth contract changed; OpenAPI/endpoint rows are not applicable.
+- [x] Working evidence remains under `docs/scratchpads/`; closure and deferral evidence remains under `docs/reports/`.
+- [x] Canonical source remains in-repository; no external publishing action is in scope.
+- [ ] Independent exact-head documentation review, PR CI, and FCM-M5-002 release certificate remain post-PR gates and are not claimed here.
+
+## Live-action boundary
+
+No migration, canary, rollback, deployment, systemd/tmux/session operation, generated projection, or product mutation was performed. `roster.yaml` remains the sole writable desired-state authority. `mos-comms` remains temporary. Parent issue #758 remains open.
+
+Validation command results and exact commit/tree evidence are recorded in the task scratchpad and PR body after execution.

docs/scratchpads/804-install-unknown-flags.md

@@ -0,0 +1,86 @@
+# Issue #804 — fail closed on unknown installer arguments
+
+## Objective
+
+Implement Part 1 of Gitea issue #804 only: `tools/install.sh` must reject every unrecognized flag or argument with an actionable STDERR error and nonzero exit before installation starts.
+
+## Scope and constraints
+
+- Preserve all currently recognized options and behavior, including `-y` and `--ref <branch>`.
+- No positional arguments are currently accepted by the parser.
+- Do not add `--next`, `MOSAIC_NEXT`, prerelease routing, or any Part 2 behavior.
+- TDD is mandatory: add and observe a failing process-level regression test before changing `tools/install.sh`.
+- Worker lifecycle ends after branch push, PR creation, and coordinator notification; do not merge or close #804.
+- Existing launcher-owned changes in `.mosaic/orchestrator/mission.json` and `.mosaic/orchestrator/session.lock` are out of scope and must not be committed.
+
+## Requirements and acceptance criteria
+
+- Unknown input names the offending argument on STDERR.
+- STDERR includes a short installer usage hint.
+- Exit status is nonzero.
+- The installer does not invoke npm or otherwise proceed into installation.
+- Existing recognized flags remain unchanged.
+
+## Plan
+
+1. Add a process-level Vitest regression using the installer test location under `packages/mosaic/src/commands/`.
+2. Run the focused test and record the expected RED failure.
+3. Commit the RED test as `test(#804): ...`.
+4. Replace the parser catch-all with a fail-closed STDERR error and usage hint.
+5. Update concise installer-facing documentation without introducing prerelease behavior.
+6. Run focused tests, shell syntax validation, package tests, lint, typecheck, and format checks.
+7. Run independent review tooling and remediate findings.
+8. Commit as `fix(#804): ...`, queue-guard, push, open a PR containing `Closes #804.`, notify the coordinator, and exit.
+
+## Budget
+
+- No explicit token cap supplied.
+- Working estimate: 8K tokens; narrow two-file behavior/test change plus concise docs and delivery gates.
+
+## Progress
+
+- 2026-07-17: Loaded mission state, issue #804, delivery/QA/documentation rails, and relevant TDD/Vitest/pnpm/Gitea skills.
+- 2026-07-17: Confirmed the parser has no legitimate positional arguments and currently drops all unmatched input via `*) shift ;;`.
+- 2026-07-17: Installed locked workspace dependencies with a worktree-local pnpm store; no lockfile changes.
+- 2026-07-17: Added the process-level unknown-argument regression with an isolated `$HOME` and npm shim.
+- 2026-07-17: Replaced the silent catch-all with STDERR error + usage output and exit 2 before preflight or installation.
+- 2026-07-17: Initial Codex code review found an unknown option could still be consumed as the `--ref` value. Added a second RED reproducer, then rejected option-shaped/missing `--ref` values without changing valid `--ref <branch>` behavior. The review's launcher-state note is handled by excluding both `.mosaic/orchestrator/` files from commits.
+- 2026-07-17: Updated README, user guide, and packaged framework README with the fail-closed argument contract. No API, auth, admin, sitemap/navigation, or publishing surface changed.
+
+## Verification
+
+- RED: `pnpm --filter @mosaicstack/mosaic exec vitest run src/commands/install-arguments.spec.ts` — expected failure: installer exited `0` instead of nonzero at the exit-status assertion; confirms the test reproduces the silent-drop defect before production changes.
+- Remediation RED: the added `--cli --ref --bogus` case exited `0`, proving `--ref` could swallow an unknown option before the guard was added.
+- GREEN: `pnpm --filter @mosaicstack/mosaic exec vitest run src/commands/install-arguments.spec.ts src/commands/install-heading.spec.ts` — 2 files, 3 tests passed.
+- Situational process check: unknown positional input exited 2, named the input on STDERR, printed usage, and did not call the npm shim.
+- `bash -n tools/install.sh` — passed.
+- Bare `--ref` process check — exited 2 with `Missing value for --ref` and usage.
+- `pnpm --filter @mosaicstack/mosaic test` — 69 files, 1,287 tests passed; framework shell checks passed. The first attempt lacked generated `dist/cli.js`; `pnpm --filter @mosaicstack/mosaic build` restored the required test precondition and the full rerun passed.
+- `pnpm lint` — 23/23 tasks passed.
+- `pnpm typecheck` — 42/42 tasks passed.
+- `pnpm format:check` — passed.
+- Codex code re-review against `origin/main` — `approve`, 0 blockers/should-fix/suggestions.
+- Codex security re-review against `origin/main` — risk `none`, 0 findings.
+
+## Acceptance evidence
+
+| Criterion | Evidence |
+| --- | --- |
+| Unknown input is named on STDERR | Process-level Vitest assertions for `--bogus`, including after `--ref` |
+| Short usage hint is printed on STDERR | Vitest usage regex + manual process output |
+| Exit is nonzero | Vitest status assertions and manual exit 2 |
+| Installation does not proceed | Isolated npm shim marker remains absent |
+| Recognized behavior is preserved | Parser cases are unchanged except validation of malformed `--ref`; full Mosaic package suite passed |
+| Part 2 is excluded | No `--next`, `MOSAIC_NEXT`, dist-tag, or prerelease routing changes |
+
+## Documentation checklist
+
+- Current canonical `docs/PRD.md` remains unchanged; issue #804 and the coordinator brief supply this bounded defect's acceptance contract.
+- Updated installer behavior in root README, user guide, and packaged framework README in the same logical change set.
+- API/OpenAPI, auth/permissions, admin operations, developer architecture, sitemap/navigation, and external publishing are not affected.
+- Scratchpad remains under `docs/scratchpads/`; no root-hygiene changes.
+
+## Risks and blockers
+
+- Part 2 remains owner-gated under #805 and is intentionally excluded.
+- No implementation blocker remains. Independent coordinator RoR, CI, merge, and issue closure remain pending after worker handoff.

docs/scratchpads/812-pr-review-comment.md

@@ -0,0 +1,58 @@
+# Issue #812 — durable Gitea PR review comments
+
+- **Lane:** ms-812
+- **Branch:** `fix/812-pr-review-comment`
+- **Issue:** mosaicstack/stack#812
+- **Budget:** 15K working estimate; single focused shell-wrapper/test/docs change.
+
+## Objective
+
+Make the Gitea `comment` action in `packages/mosaic/framework/tools/git/pr-review.sh` use the supported Gitea comments REST API and report success only after provider read-back verifies the created comment against the intended repository, PR, and exact body.
+
+## Plan
+
+1. Add and commit a failing shell regression harness before production changes.
+2. Verify RED against the nonexistent `tea pr comment` fallback false-positive.
+3. Implement the minimal supported write plus ID-based provider read-back.
+4. Document that wrapper write output is not durable provenance until read-back succeeds.
+5. Run focused regression tests, touched-package tests, and repository quality gates.
+6. Remediate review findings, queue-guard, and push for coordinator-owned independent review. Do not open or merge a PR.
+
+## Progress checkpoints
+
+- [x] RED regression committed and reported to mosaic-100 (rebased commit `770e3f57`)
+- [x] Initial minimal fix implemented (rebased commit `ea7f8c57`)
+- [x] Rebased cleanly onto main `627cf2bb387f7c84a532d88819903a7679ce0d72`
+- [x] Codex blocker remediated by replacing unsupported `tea api` with authenticated REST write/read-back
+- [x] Focused, package, and repository gates green
+- [ ] Coordinator-owned independent review pending after push
+- [x] No PR opened; no self-review or self-merge
+
+## Tests run
+
+- RED after rebase: the regression harness failed against `origin/main` with status 1 after reproducing the old `tea pr comment` zero-exit fallback and false success echo.
+- GREEN at resumed head: the same harness passed with REST POST 201 plus GET 200 read-back.
+- All `packages/mosaic/framework/tools/git/test-*.sh` harnesses passed.
+- `shellcheck -x` passed for the changed scripts; `bash -n` passed.
+- Manifest resolver returned `framework` for `tools/git/test-pr-review-gitea-comment.sh`.
+- `pnpm test` passed (43/43 Turbo tasks; Mosaic 75 files/1434 tests; Gateway 56 files/628 tests plus documented skips).
+- `pnpm typecheck` passed (42/42 tasks), `pnpm lint` passed (23/23), and `pnpm format:check` passed.
+- Firewall checks found no user-home paths or operator identities in changed shipped files; no token value is logged or echoed.
+
+## Risks / blockers
+
+- No active implementation blocker. #789 reached terminal merged state and the coordination hold was lifted.
+- Review round 1 found one portability blocker: the API base reconstructed `https://$host` and discarded configured schemes/path prefixes.
+- Review round 2 found a second subpath portability blocker: clone-derived `get_repo_slug` retained the deployment prefix, duplicating it under `/api/v1/repos/`.
+- Round 3 resolves owner/repo relative to the configured Gitea base path for HTTP(S) clones while preserving root-mounted and SSH clone forms. Host matching now compares non-default ports consistently.
+- REST transport failures, non-201 writes, malformed/missing created IDs, non-200 read-backs, and read-back mismatches all fail closed.
+- Existing approve/request-changes behavior remains covered.
+- Independent exact-head re-review remains coordinator-owned.
+
+## Final verification evidence
+
+- URL-portability regression was RED before remediation at the new `http://git.mosaicstack.dev` case and GREEN afterward.
+- Round-3 genuine subpath regression was RED against round-2 head `1b190201` and GREEN after the fix: `https://git.example/gitea/owner/repo.git` maps to API repository `owner/repo` under configured base `/gitea`.
+- Regression coverage verifies POST and read-back GET for root-mounted HTTP(S), path-prefixed HTTP(S), non-default HTTP port, scp-style SSH, and `ssh://` clone forms.
+- Focused shell checks, all git-wrapper harnesses, and full repository test/typecheck/lint/format gates passed after remediation.
+- Branch will be force-pushed with lease for coordinator re-verification; no PR opened.

docs/scratchpads/824-mosaic-skill-cli.md

@@ -0,0 +1,112 @@
+# Issue #824 — Mosaic skill CLI and Claude bridge auto-sync
+
+## Objective
+
+Deliver `mosaic skill register|unregister|list` plus install/upgrade reconciliation of every canonical `~/.config/mosaic/skills/*` entry into `~/.claude/skills/`, without clobbering runtime-owned files or directories.
+
+## Scope and constraints
+
+- Issue: mosaicstack/stack#824
+- Branch: `feat/824-mosaic-skill-cli`
+- M1 runtime: Claude Code only.
+- Pi/Codex parity is documentation-only; no non-Claude bridge implementation.
+- Do not author the downstream `mosaic-context-refresh` skill.
+- Workers do not modify `docs/TASKS.md`, merge, close #824, or touch `main`.
+- TDD is mandatory and red-first; filesystem tests use temporary directories only.
+- Budget: no explicit token cap supplied; use a focused single-worker implementation with no new dependencies.
+
+## Requirements mapping
+
+1. Register creates the canonical Claude symlink and is idempotent.
+2. Names are untrusted: reject empty/escaping/absolute/separator/`..`/leading-dash names before filesystem mutation, with clear CLI stderr and nonzero status.
+3. Register repairs only Mosaic-owned dangling symlinks and refuses foreign files, directories, and symlinks.
+4. Unregister removes only symlinks pointing inside the canonical Mosaic skills root and is idempotent when absent.
+5. List reports registered, dangling, foreign, and canonical-but-unregistered skills.
+6. Install and upgrade generically reconcile all canonical skills after framework sync/re-seed, continuing past foreign conflicts without clobbering them.
+7. User/developer documentation describes commands, status meanings, security boundaries, and Claude-only M1 scope.
+
+## Plan
+
+1. Add co-located failing Vitest coverage for all filesystem behaviors and auto-sync.
+2. Run the focused spec and record the expected RED failure.
+3. Commit the red contract as `test(#824): ...`.
+4. Implement the skill bridge and Commander command registration.
+5. Wire reconciliation into wizard finalize and `mosaic update` re-seed, preserving non-clobber behavior.
+6. Update canonical docs and sitemap if navigation changes.
+7. Run focused tests, package tests, typecheck, lint, and formatting.
+8. Commit implementation/docs as `feat(#824): ...`, queue-guard, push, open PR with `Closes #824.`, fire completion event, and notify the coordinator.
+
+## Progress
+
+- 2026-07-17: Loaded mission/delivery/TDD/documentation rails, issue #824, active mission state, and relevant installer/update paths.
+- 2026-07-17: Confirmed `mosaic update` invokes `framework/install.sh` with `MOSAIC_SYNC_ONLY=1`; that path exits before existing post-install skill linking, leaving newly present canonical skills unregistered.
+- 2026-07-17: Coordinator addendum classified the user-supplied skill name and runtime symlink target as a path-traversal/symlink-injection surface. Expanded the initial red contract to reject traversal before mutation, preserve every foreign entry, and unregister Mosaic-owned links only.
+- 2026-07-17: Implemented the Commander command group and secure generic bridge; wired wizard finalize and successful framework re-seed reconciliation; updated user/developer/installed/root docs and sitemap.
+- 2026-07-17: Focused, package-wide, repository baseline, temp-home situational, and independent review gates completed. Ready for scoped feature commit, queue guard, push, and PR handoff.
+
+## Tests and evidence
+
+### TDD evidence
+
+- RED environment attempt: `pnpm --filter @mosaicstack/mosaic exec vitest run src/commands/skill.spec.ts` initially could not locate Vitest because this fresh worktree had no dependencies.
+- Dependency setup: `pnpm install --frozen-lockfile --store-dir /home/hermes/.local/share/pnpm/store` succeeded. The explicit store was required because machine pnpm config incorrectly resolves the default store under `/root`.
+- RED behavior: focused Vitest failed with `Failed to load url ./skill.js ... Does the file exist?`, proving the bridge API was absent.
+- RED integration: finalize/update specs failed because no Claude links or `skillSync` result existed.
+- RED symlink injection: symlinked Claude/canonical root tests failed because the initial implementation followed ancestor links.
+- GREEN after review remediation: `skill.spec.ts` 36/36, `finalize-skills.spec.ts` 6/6, and `update-checker.reseed.spec.ts` 30/30.
+
+### Baseline gates
+
+- `pnpm --filter '@mosaicstack/mosaic...' run build` — pass (fresh-worktree dependency outputs built).
+- `pnpm --filter @mosaicstack/mosaic run typecheck` — pass.
+- `pnpm --filter @mosaicstack/mosaic run lint` — pass.
+- `pnpm --filter @mosaicstack/mosaic test` — pass: 69 files, 1,325 Vitest tests plus framework shell suite.
+- `pnpm typecheck` — pass: 42/42 Turbo tasks.
+- `pnpm lint` — pass: 23/23 Turbo tasks.
+- `pnpm format:check` — pass.
+
+### Situational evidence
+
+A built-CLI temp-home smoke test (no real `~/.claude` or Mosaic config touched) proved:
+
+- register creates the exact link and a second run reports `already registered`;
+- list reports registered and unregistered canonical skills;
+- `../../etc` exits 1 with `Invalid skill name` and creates no escaped path;
+- unregister removes the managed link and a second run reports `already unregistered`;
+- a fake successful framework re-seed generically registered both `added-after-setup` and `second-skill` from runtime directory enumeration.
+
+### Review evidence
+
+- Initial uncommitted Codex code/security review described name validation/clobber protection as strong; its only finding was the harness-owned, unrelated `.mosaic/orchestrator/session.lock`, which is excluded from all commits and the PR.
+- Exact branch review then identified two remediations: preserve successful framework re-seed status when bridge-wide reconciliation fails, and reject/escape control-character names to prevent terminal/log injection.
+- Both findings were reproduced red-first and remediated. A subsequent exact review identified one finalize failure-isolation blocker; a root-wide bridge error now warns and allows wizard doctor/summary/next-steps completion, with a red-first regression.
+- All remediations passed the full package and repository gates. Final exact-head review is rerun after amending the feature commit.
+
+### Acceptance mapping
+
+| Acceptance criterion | Evidence |
+| --- | --- |
+| register/unregister/list, idempotent | `skill.spec.ts` and built-CLI temp-home smoke |
+| traversal/symlink-injection protection | invalid-name matrix, foreign file/dir/link tests, symlinked-root tests |
+| list flags dangling and foreign entries | deterministic list status test |
+| install and upgrade auto-sync every canonical directory | finalize + framework re-seed integration specs; two-skill built-module smoke |
+| newly added skill becomes discoverable without manual link | `added-after-setup` auto-sync creates exact Claude link; Claude can rescan with `/reload-skills` or a new session |
+| Pi/Codex parity captured as scope note | user guide, developer guide, installed framework README |
+| documentation gate | root README, user guide, developer guide, framework README, sitemap |
+
+## Risks
+
+- Symlink replacement uses `lstat` semantics so dangling links are detectable without following them.
+- Link ownership is determined lexically against the canonical skills root, and existing symlink ancestors in either managed root are rejected before mutation.
+- Auto-sync continues across per-skill conflicts while never deleting real files/directories or foreign symlinks.
+- Claude Code discovers filesystem skills at session launch/reload boundaries; bridge creation makes a later `/reload-skills` or new session able to discover the skill, but cannot mutate an already-cached in-process registry by itself.
+- Pi does not need this Claude bridge because its Mosaic launcher can consume the canonical root. Codex lifecycle parity remains explicitly deferred.
+- No deployment surface is affected.
+
+## PR #826 review remediation
+
+- 2026-07-17: Exact-head RoR requested changes for two ownership bugs: installer pruning deleted foreign-name links under `MOSAIC_HOME` outside canonical skills, and unregister deleted a same-root link targeting a different skill. It also requested trailing-dot rejection and executable coverage support.
+- RED evidence: focused regression run failed 4 tests: register/unregister accepted `safe.`, misdirected unregister did not throw, and the install linker deleted the foreign-name link.
+- GREEN evidence: `skill.spec.ts` passes 43/43, including live and dangling foreign-name links in a temp HOME/MOSAIC_HOME and the misdirected unregister invariant.
+- Coverage: `vitest run src/commands/skill.spec.ts --coverage` passes configured 85% thresholds for `skill.ts`: 91.05% statements/lines, 86.27% branches, 95.23% functions.
+- Full gates: package build passed; package tests passed 69 files / 1,332 tests plus framework shell suite; repository typecheck 42/42, lint 23/23, and format check passed.

docs/scratchpads/828-lease-broker.md

@@ -0,0 +1,86 @@
+# WI-1 Scratchpad — Authenticated external lease broker
+
+- **Issue:** Gitea #828
+- **Milestone:** 188 — Compaction-Refresh Mechanism (M1: Claude + Pi)
+- **Branch:** `feat/828-lease-broker`
+- **Starting HEAD:** `d801d6c4c8a984d6a95033c49714210018d3d9a8`
+- **Session role:** Orchestrator coordinating implementation; Mos retains merge authority.
+
+## Objective
+
+Implement the ratified WI-1 product lease broker under `packages/mosaic/`: Linux `SO_PEERCRED` identity, broker-minted logical session IDs, `(pid,starttime)` launcher anchors with per-hop `/proc` starttime revalidation, sibling-substitution rejection, same-PID runtime-generation revocation, crypto-RNG single-use token persistence, and protected Unix-socket posture.
+
+## Authority verification
+
+Verified before code on session start; all exact SHA-256 values matched:
+
+- BUILD-BRIEF: `89fdbc27ed0e5050dc7b52f3ef2ddaea691edf17fd89d51b15e26fb5ed47171b`
+- SPEC-v5: `a6d07ade835758e8488ca10d3b0631caf0beb93ea3a6733631f151b0c2f01433`
+- Ratification: `bac58319c9c4028b5b40e1129e0033cdb5a6b7b02033c25f06f4cb77d7779c67`
+- P6 planner ruling: `b7bbb6ea6e8d9a5c3366993642ab4e4f65b961af04936dcac20bfbcdcbaf1a09`
+- WI-0 Gate0 evidence: `5d418306fcc597fd514e500bee40d1509f0bf467e46ee13fc5c280ed8274759d`
+
+## Locked constraints
+
+- Build against the ratified design; do not re-derive it.
+- Product code only in `packages/mosaic`; Gate0 Python probes are reference prototypes and are not shipped.
+- Caller-supplied/asserted `session_id` is refused.
+- Tokens use the operating-system CSPRNG via Python `secrets`; never `Math.random` or model output.
+- Socket parent directory mode `0700`, socket mode `0600` minimum; document distinct-principal deployment as the stronger T-C-closing posture.
+- Red-first TDD for six named cases; new-code coverage >=85%.
+- No merge. PR must say `closes #828`; exact 40-character head handed to Mos for Opus-SECREV and independent review.
+
+## Plan
+
+1. Load security/testing/docs guidance and inspect existing `packages/mosaic` architecture.
+2. Write the six required tests first and capture RED evidence.
+3. Implement minimal broker modules and CLI/runtime integration necessary for product use.
+4. Run focused tests with coverage, package gates, then full repository gates/suite.
+5. Run author-side review/remediation, commit `closes #828`, queue guard, push, and open PR through Mosaic wrappers.
+6. Send PR number + exact head SHA to `web1:mosaic-100`; stop without merging.
+
+## Risks / boundaries
+
+- Same-UID counterfeit socket replacement remains the disclosed T-C residual unless broker runs under a distinct principal; filesystem modes alone are minimum hardening, not a complete authenticity proof.
+- `.mosaic/orchestrator/mission.json` and `.mosaic/orchestrator/session.lock` were already modified at session start and must not be included in this PR.
+- Repository Woodpecker pipelines exist; CI is the canonical build path. No manual image build/deploy is in scope.
+
+## Progress / evidence
+
+- 2026-07-18 session start: mandatory mission files and orchestration guides loaded.
+- STEP 0: all four authority hashes matched; artifacts read in full.
+- Branch/HEAD confirmed; issue #828 open; Gate0 evidence hash confirmed.
+- Initial RED: focused Vitest acceptance suite failed 11/11 because the product daemon did not exist; the expected missing-product failure was observed before implementation.
+- Review-remediation RED: partial/zero-progress state writes, nested corrupt state, symlink state, canonical starttime, and duplicate-anchor generation behavior failed before their fixes. Real socket RED/GREEN runs were executed by the unrestricted parent harness because the delegated worker sandbox denies `AF_UNIX.bind()`.
+- Product implementation added at `packages/mosaic/framework/tools/lease-broker/daemon.py`; Gate0 probe scripts were read as references but not copied or shipped.
+- Independent Codex code review round 1 found 2 blockers + 1 should-fix (connection stall/crash, partial writes, packet-dependent framing); all were remediated with tests.
+- Independent Codex code review round 2 found 2 blockers + 1 relevant should-fix (half-close contract ambiguity, incomplete persisted-state validation, symlink/non-regular state); all were remediated with tests and documentation. Pre-existing `.mosaic/*` session dirt remains excluded from the PR.
+- Unrestricted focused situational suite: `35/35` GREEN.
+- New Python product module coverage: `90%` (`356` statements, `36` missed), above the user-required 85%.
+- Root typecheck: `42/42` Turbo tasks GREEN.
+- Root lint: `23/23` Turbo tasks GREEN.
+- Root format check: GREEN.
+- Package build + suite: `71/71` files and `1,369/1,369` tests GREEN, including framework shell tests.
+- Full root suite: `43/43` Turbo tasks GREEN after the oversized-frame production race fix.
+- Focused acceptance suite: `35/35` GREEN in three consecutive unrestricted runs; exact-head instrumented run also `35/35` GREEN.
+- Exact-head Python product coverage: `90%` (`365` statements, `37` missed), above the required 85%.
+- Review-triggered oversized-frame race was fixed in production by bounded drain-to-EOF; tests were not changed.
+- Commits banked in red/green cadence: `d61c5441` (RED contract), `deb11df7` (GREEN implementation/docs), `57770e34` (oversized-frame production fix).
+- Final-review blocker remediated: added a 256-token pending-state cap, deletion on consume/generation revocation, pre-open serialized-size enforcement, and request-wide in-memory rollback for every broker mutation/commit failure while retaining the v1 live-token schema.
+- Distinct-principal docs now state built-in `0700`/`0600` is same-principal only; WI-1 does not provide the external identity-preserving proxy/ACL/service boundary needed for the stronger deployment.
+- Exact Python unit suite: `8/8` GREEN. Unrestricted focused acceptance: `35/35` GREEN.
+- Exact-head package build/suite: `71/71` files and `1,369/1,369` tests GREEN.
+- Exact-head Python product coverage: `90%` (`376` statements, `36` missed), above required 85%.
+- Root typecheck: `42/42` GREEN. Root lint: `23/23` GREEN. Root format check and `git diff --check`: GREEN.
+- Final exact-head rereview found two persistence blockers: post-rename directory-fsync uncertainty and acceptance of impossible persisted token records. RED was captured as three invariant failures plus one missing fail-stop error; commits `a94b1220` (RED) and `d05465e5` (GREEN) remediate both without weakening tests.
+- Post-remediation evidence: Python unit suite `10/10`, focused real-socket acceptance `35/35`, full root suite `43/43` Turbo tasks, broker coverage `90%` (`395` statements, `38` missed), lint `23/23`, typecheck `42/42`, format check and `git diff --check` GREEN.
+- Independent Codex review of remediation commit `d05465e54736c4966294c4af8fbd6a4ad8fe81aa`: APPROVE, confidence `0.94`, zero findings. Reviewer sandbox could not allocate temp directories; unrestricted parent test evidence above is canonical.
+
+- Remediation session: terra review comment `18072` reproduced a SERIAL-ACCEPT DoS; scope is RED regressions plus bounded concurrent connection handling on PR #836, preserving all existing broker security properties.
+- RED evidence against reviewed daemon: four silent peers delayed registration `3920 ms` beyond the `1500 ms` bound; 16 silent peers were not reaped within `2500 ms`. The first bounded implementation then exposed slot exhaustion by rejecting the valid queued caller with `EPIPE`; admission was corrected to wait for a reclaimed bounded slot. GREEN evidence: queued-peer test `211 ms`; strengthened cap/reap/reclaim test `1118 ms`; complete real-socket acceptance `37/37` and Python persistence suite `10/10`.
+
+## Coordinator handoff requirements
+
+1. Mandatory Opus-SECREV on the exact PR head; no GPT/terra substitute.
+2. Independent exact-head code review and exact-head RoR before Mos-authorized merge.
+3. Mos retains merge authority; this WI author stops after PR + full 40-character head handoff.

docs/scratchpads/829-mutator-gate.md

@@ -0,0 +1,130 @@
+# WI-2 Scratchpad — Whole mutator-class gate
+
+- **Issue:** Gitea #829
+- **Branch:** `feat/829-mutator-gate`
+- **Base HEAD:** `8ec67a1126adb0dcd4c3a2bf5525f3e239c0b201`
+- **Role:** sol author/build lane only; terra code review and Opus security review are coordinator-owned.
+
+## Mission prompt
+
+Implement BUILD-BRIEF Deliverable 2 as a framework-native whole mutator-class gate under `packages/mosaic/`, building against the merged WI-1 lease broker. No consequential mutator may succeed while UNVERIFIED after a compaction observer fires or after TTL. Carry the T-B compromised-tool acceptance criteria. Enforce revoke-first and promote-last structurally. A receipt is only a promotion prerequisite; the mutator-class gate remains the safety mechanism. M1 is Claude + Pi only.
+
+## Authority verification
+
+Verified exact SHA-256 before design/code:
+
+- BUILD-BRIEF: `89fdbc27ed0e5050dc7b52f3ef2ddaea691edf17fd89d51b15e26fb5ed47171b`
+- SPEC-v5: `a6d07ade835758e8488ca10d3b0631caf0beb93ea3a6733631f151b0c2f01433`
+- Ratification: `bac58319c9c4028b5b40e1129e0033cdb5a6b7b02033c25f06f4cb77d7779c67`
+- sol final red-team: `3da326a4ea91767b731e128a93b13194e8002358101e30de3fcb8ca2f8f54faa`
+
+Carried authority chain also verified/read for the locked T-B gate contract: SPEC-v4 `a5e9c261…`, v4 sol `1e76ee59…`, SPEC-v3 `e0830ba0…`, v3 sol `9f321ade…`.
+
+## Plan
+
+1. RED real-socket acceptance tests for default-deny whole classes, T-B raw-tool bypass, observer/TTL revocation, and structural revoke-first/promote-last.
+2. Extend the merged WI-1 broker as the sole lease authority; authenticate every transition through existing peercred/ancestry/session logic and consume WI-1 single-use cycle tokens atomically before promotion.
+3. Add one broker-backed runtime gate executable and wire it across all Claude `PreToolUse` tools and Pi `tool_call`; unknown/custom tools deny by default.
+4. Add proportional protocol/security/operations documentation and requirements-to-evidence mapping.
+5. Run focused coverage, package/full suites, lint/typecheck/format, then queue-guard, push, open an unmerged PR with `closes #829`, and hand off the exact head.
+
+## Risks and bounds
+
+- Receipt parsing/builders and compaction observers are later WIs; WI-2 exposes the promotion prerequisite boundary but does not treat a receipt as safety authority.
+- Broker restart intentionally loses volatile VERIFIED leases and therefore restarts UNVERIFIED; persistent WI-1 identity/token state remains unchanged.
+- The gate is whole-class and does not parse shell command strings. T-C extension/hook absence and same-UID broker replacement remain outside the client guarantee and server branch protection remains the backstop.
+- Initial lease TTL is capped at ratified 300 seconds; callers may only shorten it.
+- Working budget assumption: 35K tokens; reduce documentation/refactor breadth before touching locked scope if pressure rises.
+
+## Progress and verification
+
+- RED #1: all 5 initial real-socket contract tests failed on WI-1 with `UNKNOWN_ACTION` or missing adapter behavior.
+- RED #2: register-before-exec runtime test failed because `launch-runtime.py` did not exist.
+- GREEN: broker-owned volatile lease state, 300-second maximum monotonic TTL, WI-1 token-backed promotion, all-tools runtime gate, Claude/Pi wiring, and register-before-exec launcher delivered without changing WI-1 peercred/ancestry authority.
+- Focused broker + gate acceptance: `43/43` GREEN.
+- Instrumented Python coverage: `88%` total — daemon `89%`, register/exec launcher `86%`, runtime gate `86%`.
+- Full repository suite: `43/43` Turbo tasks GREEN; `@mosaicstack/mosaic` `72/72` files and `1,377/1,377` tests GREEN.
+- Root typecheck: `42/42`; lint: `23/23`; format check and `git diff --check`: GREEN.
+- No author self-review was run. Exact-head terra CODE and Opus SECREV remain coordinator-owned gates.
+
+## Acceptance mapping
+
+| Acceptance criterion | Evidence |
+| --- | --- |
+| No consequential mutator succeeds while UNVERIFIED after observer revoke or TTL | `observer revocation and monotonic TTL expiry deny the next mutator` real-socket acceptance test |
+| T-B compromised-tool bypass is covered by the whole gate | `T-B raw and custom mutator tools are default-denied without shell parsing` across Claude/Pi built-ins, raw Bash class, MCP/custom/unknown tools |
+| Revoke-first / promote-last is structural | `revoke-first and promote-last structurally bracket mutator authority`; direct promotion rejected, pending remains denied, token consumption commits before VERIFIED |
+| Consume WI-1 auth/lease substrate | All transitions and decisions traverse merged peercred/ancestry authentication; promotion consumes the exact WI-1 CSPRNG cycle token |
+| M1 Claude + Pi | Claude `.*` PreToolUse and Pi `tool_call` invoke the same broker gate; register-before-exec test proves broker-minted parent identity reaches runtime descendants |
+
+## Locked discipline
+
+- Re-verify and read the four authority artifacts before design or code.
+- RED-first tests must cover unverified mutation refusal, T-B compromised-tool refusal, and revoke-first/promote-last ordering.
+- Consume WI-1 VERIFIED-lease state; do not re-derive kernel identity, ancestry, sessions, or token authentication.
+- Minimum 85% new-code coverage; full suite, lint, typecheck, and format checks green.
+- Build only: no self-review and no merge. Open a PR containing `closes #829`, report its exact 40-character head, then exit.
+
+## Remediation — terra CODE comment 18091
+
+- Coordinator correction: terra returned REQUEST CHANGES at head `77b137ccc04b5be035cac5ca21bbbf3df8b94f97`; Opus SECREV was GO and CI green, but no evidence transfers to the remediated head.
+- BLOCKER 1 verified: first-class Claude/Pi route through `execLeaseGatedRuntime`, while the supported Claudex path preserves isolation but directly invokes `claude`; it therefore registers no anchor, injects no lease session, and the isolated config has no guaranteed all-tools gate hook.
+- BLOCKER 2 accepted: prior 88% was aggregate evidence. Remediation must produce independently measured branch coverage of at least 85% for each new executable (`launch-runtime.py`, `mutator-gate.py`, and daemon delta evidence), including successful exec-boundary collection and validation/error branches.
+- Remediation discipline: RED tests first; preserve the reviewed-good broker lock/state-transition ordering; update PR #837 on the same branch; no self-review or merge.
+
+### Remediation evidence
+
+- RED commit `046896c6`: both `mosaic claudex` and `mosaic yolo claudex` behavioral probes exited 1 because the direct path supplied neither a broker session nor the isolated all-tools hook; branch-focused Python tests failed on the absent injectable boundaries. Fresh WI-2 daemon-delta instrumentation also failed the ≥85% branch gate at 75%.
+- GREEN: Claudex now exposes only `execLeaseGated`, passes the preserved isolated proxy environment through the shared register-before-exec wrapper, and merges the exact `.*` mutator hook into isolated `settings.json` with mode `0600`. Missing broker/identity, malformed or symlinked settings, and an unverified consequential tool all fail closed. The broker transition/lock implementation was not changed.
+- Behavioral regression: normal and YOLO Claudex both receive a 64-hex broker session, retain their mode-specific arguments, observe the exact all-tools hook, and receive status 2 for unverified `Bash`.
+- Independent branch coverage: `launch-runtime.py` 16/18 = **89%** (statements 98%); `mutator-gate.py` 21/22 = **95%** (statements 99%); `daemon.py` WI-2 delta 35/40 = **88%** (whole-file branch 80%, statements 90%).
+- Fresh focused real-socket coverage run: WI-1 + WI-2 acceptance `46/46`; persistence `10/10`; branch unit suite `10/10`.
+- Fresh full repository suite: `43/43` Turbo tasks; `@mosaicstack/mosaic` `72/72` files and `1,381/1,381` tests.
+- Fresh root gates: typecheck `42/42`; lint `23/23`; format and `git diff --check` GREEN.
+- PR #837 remains open and unmerged. Terra CODE and Opus SECREV must both rerun from zero on the exact remediated head before coordinator-owned merge authorization.
+
+## Remediation round 3 — terra CODE comment 18099 + binding upgrade
+
+- Locked-good surfaces: Claudex gating and B2 per-executable coverage are verified; do not regress them. Broker state-transition/lock ordering remains untouched.
+- Mechanical repository sweep found direct executing Claude entries in PRDY init, PRDY update, QA remediation, and `@mosaicstack/coord` task launch. It also found a direct Claude command rendered into the QA report template and documentation examples. Existing Mosaic CLI Claude/Pi/Claudex, orchestrator session-run, and fleet starts already reach the gated boundary.
+- Elevated hard requirements: ship a permanent suite/CI guard that scans production source and fails on any direct Claude/Pi launch; route every executing entry through one common gated wrapper; add real-broker RED/GREEN tests for PRDY init/update and QA; preserve each environment and denial behavior; independently measure all new executable coverage at ≥85%.
+- Round-3 plan: first commit RED behavioral and scanner-contract tests; then add one framework `launch-runtime.sh` choke-point over `launch-runtime.py`, make Mosaic CLI and shell launchers use it, make coord route through `mosaic`, and wire the permanent guard into package tests. Update all discovered operator-facing direct-launch examples so the scanner inventory remains complete.
+
+### Round-3 outcome
+
+- RED commit `7f3418fa`: PRDY init, PRDY update, and QA remediation all reached the fake Claude binary without a broker session even when the configured socket did not exist; the permanent-guard contract initially failed because its executable was absent, then failed against the five discovered direct entries (four executing plus the QA command template).
+- Choke-point decision: a new shell layer was unnecessary. Every executing repository entry now converges directly or through `mosaic`/`execLeaseGatedRuntime` on the existing single `launch-runtime.py` register-then-exec wrapper. PRDY and QA preserve their working directories, prompts, flags, logging pipe, and environment. Coord rewrites direct Claude commands to `mosaic claude` and rejects unknown custom Claude launchers fail-closed.
+- Permanent guard: `packages/mosaic/framework/tools/lease-broker/check-runtime-launches.py`, invoked by `packages/mosaic/package.json` `test:framework-shell` and therefore root `pnpm test`/CI. It scans production code under `packages/`, `apps/`, `plugins/`, and `tools/` and rejects literal, absolute-path, process-API, command-array, and dynamic Claude/Pi launch forms. Synthetic bypass tests are permanent at `runtime_launch_guard_unittest.py`.
+- Mechanical inventory: **14 gated / 14 total** — coord 2, fleet 1, QA 2, orchestrator 3, PRDY 2, Mosaic Claude/Pi/Claudex adapter/boundary 4. No verification-layer fallback or follow-up issue is needed because the single code-level wrapper was achieved.
+- Real-socket behavioral evidence: PRDY init, PRDY update, and QA remediation each fail before runtime execution when the broker is absent; with the broker present they receive a broker-minted 64-hex session and the unverified `Bash` authorization exits 2. Claudex normal/YOLO and the broker state machine remain GREEN.
+- Fresh branch coverage: `launch-runtime.py` **18/18 = 100%**; `mutator-gate.py` **22/22 = 100%**; permanent guard **36/38 = 95%**; `daemon.py` WI-2 delta **35/40 = 87.5%**. All attributable executable statement coverage is at least 98%.
+- Fresh focused suites: broker + mutator real-socket acceptance `49/49`; persistence `10/10`; launcher/gate branch suite `13/13`; permanent guard suite `7/7`; coord `19/19`.
+- Fresh full repository suite: `43/43` Turbo tasks; `@mosaicstack/mosaic` `72/72` files and `1,384/1,384` tests. Root typecheck `42/42`, lint `23/23`, format, and diff checks GREEN.
+- PR #837 remains open and unmerged. Terra CODE and Opus SECREV must both rerun from zero on the exact round-3 head before coordinator-owned merge authorization.
+
+## Remediation round 4 — terra CODE comment 18104
+
+- Locked-good surfaces: the 14/14 launch inventory, single `launch-runtime.py` choke-point, real-socket launcher behavior, coverage, Claudex gating, and broker state machine must not change.
+- Reproduced RIDER E exactly at head `1792b7934dda7eff64a207b8b0edb9c460d4164b`: a temporary production file containing `exec claude --dangerously-skip-permissions "terra-r3" # launch-runtime.py` made the guard exit 0 and report `1 gated/1 total`.
+- Root cause: classification searched the unparsed physical line, and the broad gated regex treated any `launch-runtime.py` substring—including comments and inert arguments—as an invocation before the direct-launch finding was evaluated.
+- Round-4 plan: add permanent RED cases for the exact comment evasion plus string-argument, echo, and unrelated-variable marker evasions; tokenize/strip comments by launcher syntax; recognize only command-position wrapper invocations with `--runtime` and the gated command separator; retain 14/14 real inventory; rerun guard coverage and all gates fresh.
+- Mos Rider A/B decision: adopt **both** defenses. Command-position parsing remains necessary because a normal `claude -p` launch is consequential even without the dangerous flag. The primitive-location invariant is more mechanically robust for dangerous mode because it does not need to recognize a wrapper marker at all. Move the sole raw `--dangerously-skip-permissions` literal into `launch-runtime.py`; any occurrence in another production file is independently RED.
+- Rider-A RED matrix adds heredoc body, backslash continuation, non-first `;`/`&&`/pipe commands, command substitution, `eval`, and variable-execution indirection in addition to the six marker/comment evasions. Before the augmented implementation, primitive ownership, command substitution, `eval`, variable execution, and the preserved 14-site inventory all fail.
+- Round-4 GREEN uses both defenses. Quote-aware comment stripping removes shell/Python `#` and JS/TS line/block comments; shell command prefixes are segmented with `shlex`; validated wrappers require `launch-runtime.py` in command position, `--runtime`, and the `--` command separator; multiline TypeScript wrapper calls are validated as complete invocations. Direct command syntax wins over markers, while tracked runtime assignments plus `eval`/variable execution, command substitution, chained commands, heredocs, continuations, and `env`/`command`/`nohup` prefixes are rejected.
+- Primitive ownership is independently load-bearing: `launch-runtime.py` is the sole production owner of the raw Claude dangerous flag. Mosaic, Claudex, and PRDY request semantic `--dangerous`; the wrapper validates Claude and injects the primitive immediately before register/exec. This preserves actual YOLO argv behavior while making any raw primitive elsewhere fail without relying on wrapper-name recognition.
+- Permanent guard suite now has 10 tests and 31 direct-launch forms, including 18 new round-4 marker/comment/indirection/prefix evasions plus harmless-marker and multiline-wrapper controls. Terra's exact add-ungated source is exercised through the CLI effectiveness test. Repository inventory remains exactly **14 gated / 14 total**.
+- Fresh round-4 coverage: guard **97%** branch-aware aggregate (241 statements, 110 branches); `launch-runtime.py` **100%**; `mutator-gate.py` **100%**. The daemon is byte-unchanged from the round-3 head whose WI-2 delta is **87.5%**.
+- Fresh round-4 gates: real-socket acceptance **49/49**; persistence **10/10**; launcher/gate **14/14**; guard **10/10**; coord **19/19**; Mosaic **1384/1384**; root **43/43**; typecheck **42/42**; lint **23/23**; format and diff checks green.
+
+## Remediation round 5 — terra 18116 + Opus 18114
+
+- Both independent gates converged on one guard-only completeness gap at round-4 head `1eb77c17f3147d4fa9944f77f1826243135b9cc0`; all round-4 primitive anchoring, command-position parsing, 14/14 inventory, broker ordering, and coverage remain locked-good.
+- Reproduced exactly: a temporary production source containing `launcher=claude` followed by `exec "$launcher" -p x` exits 0 with `0 gated / 0 total`. The literal command resolver skips prefixes but cannot resolve a tracked variable; the variable resolver handles only bare/eval references and cannot skip prefixes.
+- Round-5 plan: add 10 permanent RED forms (quoted/unquoted `exec`, `command`, `nohup`, and `env` with assignment, each multiline and same-line), then unify shell command-position resolution so literal and tracked-variable terminal tokens traverse the same prefix parser. Retain an independent variable-reference backstop, the 14/14 inventory, and every round-4 regression.
+- Mos stopping-criterion augment: command parsing is explicitly best-effort rather than a complete shell interpreter. Add B1 proving a parser-exotic alias launch with the raw dangerous flag is still RED by primitive anchoring, and B2 proving a parser-missed non-dangerous alias launch reaches the global `.*` hook and fails closed with `GATE_UNAVAILABLE` when no lease session exists. Document A (realistic parser matrix) + B (robust residual backstops); fresh reviewers supply criterion C (no new non-overlapping finding).
+- RED commit `91a4a983`: all 10 prefix×variable cases failed as expected before the fix—quoted/unquoted `exec`, `command`, `nohup`, and `env A=1`, each in multiline and same-line assignment shapes.
+- GREEN structural resolution: `shell_command_tokens()` now owns command-position prefix skipping for both literal and variable callers, including nested `exec`/`command`/`nohup`/`env` ordering. `runtime_variables` is threaded into `is_shell_direct_invocation()` and the same terminal-token resolver backs `executes_runtime_variable()`; exact `$v` and `${v}` references are resolved after `shlex` removes quoting. Same-line runtime assignment delimiters include shell operators.
+- Residual backstops: B1 proves alias-indirected dangerous mode is classified `dangerous-primitive` even though the parser does not resolve the alias. B2 proves a non-dangerous alias residual remains parser-missed, then verifies the shipped global `.*` Claude hook and status-2 `GATE_UNAVAILABLE` denial for representative read, mutator, and custom/MCP tools without a lease session.
+- Stopping-criterion evidence A+B is committed in tests and architecture docs; C remains the fresh exact-head terra/Opus determination. Repository inventory remains exactly **14 gated / 14 total**.
+- Fresh round-5 coverage: permanent guard remains **97%** branch-aware aggregate (251 statements, 112 branches). Locked-good launcher and mutator-gate executables remain unchanged at their round-4 **100% / 100%** evidence.
+- Fresh round-5 gates: real-socket acceptance **50/50**; persistence **10/10**; launcher/gate **14/14**; guard **12/12**; coord **19/19**; Mosaic **1385/1385**; root **43/43**; typecheck **42/42**; lint **23/23**; format and diff checks green.

docs/scratchpads/830-compaction-revoke.md

@@ -0,0 +1,95 @@
+# WI-3 Scratchpad — Compaction revocation and runtime-generation rollover
+
+- **Issue:** Gitea #830
+- **Branch:** `feat/830-compaction-revoke`
+- **Base HEAD:** `abd2791f59b3f06f46dd08e55298ced72f6aa7c2`
+- **Role:** sol author/build lane only; terra CODE and Opus SECREV are coordinator-owned.
+
+## Mission prompt
+
+Implement BUILD-BRIEF Deliverable 3.3 and D4 on merged WI-1/WI-2 under `packages/mosaic/`. Claude `PreCompact` and `SessionStart(matcher=compact)` plus Pi `session_before_compact`/`context` equivalents must revoke the active lease through the existing broker state machine. Any `runtime_generation` bump—including same-PID reload/resume/fork—must auto-revoke the prior incarnation so the new generation inherits no prior lease. M1 is Claude + Pi only.
+
+Honor amended D2-v5 exactly: hard fail-closure when at least one observer fires or after lease expiry; both observers missing within TTL is an explicitly named bounded residual stale window (maximum 300 seconds, soak-tighten only), with no claim that the mutator gate bounds actions inside that window; total gate-hook miss is T-C. T12b/T30 must report both the within-TTL ALLOWED outcome and after-TTL DENIED outcome.
+
+## Session start verification
+
+- Worktree is clean on `feat/830-compaction-revoke` at exact required base `abd2791f59b3f06f46dd08e55298ced72f6aa7c2`; `origin/main` is the same SHA and includes merged WI-2 atop WI-1.
+- Authority SHA-256 verified:
+  - BUILD-BRIEF: `89fdbc27ed0e5050dc7b52f3ef2ddaea691edf17fd89d51b15e26fb5ed47171b`
+  - SPEC-v5: `a6d07ade835758e8488ca10d3b0631caf0beb93ea3a6733631f151b0c2f01433`
+  - Ratification: `bac58319c9c4028b5b40e1129e0033cdb5a6b7b02033c25f06f4cb77d7779c67`
+  - sol red-team: `3da326a4ea91767b731e128a93b13194e8002358101e30de3fcb8ca2f8f54faa`
+- WI-0 evidence pack SHA-256 `5d418306fcc597fd514e500bee40d1509f0bf467e46ee13fc5c280ed8274759d` read directly. Probe P3 is **PASS**: real Pi retained the same PID/starttime through reload/fork/new/resume while generations advanced and a prior VERIFIED generation was revoked.
+- P6 planner-return ruling SHA-256 `b7bbb6ea6e8d9a5c3366993642ab4e4f65b961af04936dcac20bfbcdcbaf1a09` read directly: feature WI admission is GO with the exact-delivery empirical compatibility fact and disclosed T-C middle-drop residual; no receipt redesign.
+
+## Plan and budget
+
+1. RED real-socket acceptance for T12b/T30, each Claude observer, same-PID generation rollover, Claude/Claudex hook wiring, and Pi lifecycle wiring.
+2. Add one broker client executable for observer revocation plus a private monotonic generation-file helper shared by launcher, gate, and revoker.
+3. Wire Claude `PreCompact`, `SessionStart(compact)`, and resume/clear generation rollover; merge equivalent mandatory hooks into isolated Claudex settings.
+4. Wire Pi pre/post compaction observers and reload/new/resume/fork generation rollover with local fail-closed tool blocking if lifecycle revocation fails.
+5. Document the D2-v5 bounded stale window without claiming the mutator gate bounds within-TTL actions; update protocol/security/operations/sitemap/checklist.
+6. Run focused real tests, independently measured executable coverage ≥85%, full repository gates, commit/push, open an unmerged `closes #830` PR, and hand off for terra CODE + mandatory Opus SECREV.
+
+Working estimate: **35K tokens**. No explicit hard cap was supplied; reduce refactor breadth before touching locked broker authority/state-machine semantics.
+
+## RED evidence
+
+- New T12b/T30 test already reports the inherited primitive honestly: within-TTL **ALLOWED**, after-TTL **DENIED**. The complete AC remains RED because the mandatory threat-contract document is absent.
+- Focused real-socket suite is RED with 7 expected failures: missing revoker executable (both Claude observers + generation bump), missing Claude/Pi wiring, missing isolated Claudex observers, and missing D2-v5 disclosure.
+- Branch-focused Python suite is RED on the wished generation initializer/resolver interfaces and missing `lease_generation.py` / `revoke-lease.py`.
+- Pi lifecycle suite is RED because the wished standalone `lease-lifecycle.ts` observer/generation module does not exist.
+
+## Locked discipline
+
+- RED-first T12b/T30 and observer/generation tests; test commit precedes implementation.
+- Reuse broker `revoke_lease`; do not fork identity, lease, or transition authority.
+- Preserve revoke-first/promote-last and WI-1/WI-2 reviewed state machine.
+- ≥85% attributable executable coverage with real tests.
+- No author self-review, no merge, no `--no-verify`.
+
+## Local implementation complete (push held)
+
+Implemented on the WI-3 base `abd2791f59b3f06f46dd08e55298ced72f6aa7c2` without changing the reviewed broker state machine:
+
+- Added `revoke-lease.py`, which authenticates through the existing broker session/generation and invokes `revoke_lease`. A fired observer that cannot confirm broker revocation advances the private generation as a local fence before returning non-zero.
+- Added `lease_generation.py`: owner/type/mode/size validation, no-follow opens, exclusive bump lock, monotonic `int64` generation, write-all + `fsync`, and fail-closed exhaustion/corruption handling.
+- `launch-runtime.py` creates `generation-<broker-session>.state` mode `0600` beside the socket before `exec`; `mutator-gate.py` resolves that current file value on every tool check.
+- Claude settings and isolated Claudex settings now preserve/install `PreCompact`, `SessionStart(compact)`, and resume/clear rollover hooks in addition to the global all-tools gate.
+- Pi now registers tested `session_before_compact`, `session_compact`→first `context`, and `session_start(reload|new|resume|fork)` handlers. Failed pre-compact revocation cancels compaction; failed post-compact/rollover revocation latches local all-tool denial.
+- Added PRD requirements, architecture/security/protocol/operations updates, sitemap entry, and the ignored-by-default documentation checklist (force-add required at commit).
+
+### Acceptance and coverage evidence
+
+- Focused acceptance: `19/19`; T12b/T30 prints within-TTL **ALLOWED** and after-TTL **DENIED**.
+- Pi lifecycle: `8/8`, with **100% statements/branches/functions/lines** attributable coverage.
+- New Python generation/revoker: `24/24`, **99% branch-aware aggregate coverage** (`lease_generation.py` 98%, `revoke-lease.py` 100%).
+- Mosaic package: `1399/1399`; framework shell Python `24/24`, launch guard `12/12`, permanent launch inventory `14 gated/14 total`.
+- Existing lease-broker real-socket acceptance: `37/37` within the package run.
+- Full repository: `43/43` Turbo tasks green; gateway `628 passed / 12 skipped`; Mosaic `1399/1399`.
+- Root typecheck: `42/42`; lint: `23/23`; format and `git diff --check` green.
+- Initial direct package test without first building the package reproduced the known missing-`dist/cli.js` harness condition; the canonical root Turbo test (which schedules `@mosaicstack/mosaic#build`) and explicit package build+test are green. No test was weakened.
+
+### Review evidence
+
+- Codex uncommitted code review: **APPROVE**, confidence `0.88`, zero findings. Its read-only sandbox could not rerun Vitest, but the author-side focused and full suites above were green.
+- Codex uncommitted security review: risk **none**, confidence `0.91`, zero findings.
+- Coordinator-mandated fresh exact-head terra CODE and Opus SECREV remain pending after rebase/push clearance; these local reviews do not replace that final gate.
+
+### Hold and residuals
+
+- **DO NOT PUSH OR OPEN A PR YET.** Coordinator requires flake-fix #838 to land, then WI-3 must rebase onto deterministic-green `main` before push.
+- Merge remains gated on #838, #827 Probe 3, and combined GO.
+- Named residual retained verbatim: when both observers are entirely missed, within-TTL consequential actions remain allowed; only lease expiry denies after the bounded stale window. No within-window mutator-action bound is claimed.
+
+## Deterministic-main rebase evidence
+
+- Fetched and confirmed `origin/main` at `8dfcf1903e385f977121069f798f476eb671fffc` (`#838` bounded broker deadlines, empty-read fail-closure, and de-flaked acceptance client).
+- Linear rebase completed. The only content conflict was `packages/mosaic/src/mutator-gate/runtime_tools_unittest.py`; resolution retained #838's `subprocess`/`threading` deadline regressions and WI-3's `stat` generation-state coverage. No authority/state-machine choice was ambiguous.
+- `packages/mosaic/src/mutator-gate/mutator-gate.acceptance.spec.ts` auto-merged on top of #838's shared `requestBrokerReply` helper. No inline socket/`JSON.parse` client was resurrected.
+- Verified WI-3 has zero diff from `origin/main` for #838-owned `daemon.py`, `broker-test-client.ts`, `lease-broker.acceptance.spec.ts`, `vitest.config.ts`, and `packages/mosaic/package.json`; bounded deadlines and the de-flaked harness are preserved byte-for-byte.
+- Required verbose acceptance command: **2 files / 56 tests green**. T12b/T30 still prints within-TTL **ALLOWED** and after-TTL **DENIED**.
+- Full Mosaic package after explicit build: **74 files / 1408 tests green**; deadline unit `2/2`, runtime tools `25/25`, launch guard `12/12`, inventory `14/14`.
+- Full repository: **43/43 Turbo tasks green**. Root typecheck `42/42`, lint `23/23`, format and diff checks green.
+- Attributable coverage remains Python **99%** branch-aware and Pi lifecycle **100%** statements/branches/functions/lines.
+- Push and PR remain held pending combined GO and all WI-3 merge gates. The coordinator-owned promote-lease-lost-ACK SPEC amendment/backstop is acknowledged as a future merge prerequisite and was not retro-expanded into this core rebase/build.

docs/scratchpads/832-receipt-challenge-protocol.md

@@ -0,0 +1,13 @@
+# #832 Receipt-challenge protocol — build scratchpad
+
+- **Objective:** Deliver WI-5 receipt-challenge protocol ACs T25, T26, T28, and T29 only.
+- **Authority:** BUILD-BRIEF, SPEC-v5, ratification, and red-team hashes verified in STEP-0.
+- **Base:** `e522b22fa4492861b0fcd4a956a8795c54eb9bfe` (`origin/main`).
+- **Constraints:** Byte-build only: no live broker/socket/systemd/tmux mutation. No PR, self-review, or probe fire. T27/T30 are out of scope.
+- **Plan:**
+  1. Add red-first deterministic T26/T29 in-build tests that call shipped normative construction and broker path.
+  2. Add an unexecuted, isolated P5 out-of-process replay harness that drives the shipped daemon and asserts consume-before-promote for T25/T28.
+  3. Implement the broker-minted receipt challenge and exact receipt observation/consume/promote path.
+  4. Run unit, framework-shell, compile, lint, and type checks; push after the required queue guard; report to `mosaic-100`.
+- **Risks:** The standalone harness must drive the real daemon without a divergent fixture. If that is impossible, stop and flag Mos.
+- **Evidence:** Initial RED recorded in `/home/hermes/agent-work/reviews/832-wi5-red-receipt-challenge.log`; initial green checks passed. Remediation RED recorded in `/home/hermes/agent-work/reviews/832-wi5-remediation-red.log` before observer/payload implementation; remediation green passed. Remediation-2 RED recorded in `/home/hermes/agent-work/reviews/832-wi5-remediation2-red.log`: each rejected begin restored prior VERIFIED authority. Remediation-2 GREEN: receipt unittest (5: all `INVALID_CONSTRUCTION`, `PAYLOAD_CONSTRUCTION_REFUSED`, and `PAYLOAD_BINDING_MISMATCH` cases preserve UNVERIFIED and deny the next mutator), normative-fragments unittest (5), state-store regression (10), full mutator-gate acceptance (20, including the real begin → observer → consume → promote path), `py_compile`, Mosaic package lint/typecheck, and targeted Prettier check. The P5 harness remains unfired. Coverage tooling remains unavailable (`python3 -m coverage`: module not installed). Push pending.

docs/scratchpads/833-constrained-recovery-command.md

@@ -0,0 +1,15 @@
+# #833 constrained recovery command — build scratchpad
+
+- **Objective:** Deliver WI-6 plus Mos-ruled B1/B2 and R2 Claude-only literal-argv repair: no shell-active recovery mapping bypass, unchanged Pi gate/B2 observer, AC-1/C4 preservation, and an unfired P6 probe.
+- **Authority:** STEP-0 SHA-256 verified 4/4 against the supplied BUILD-BRIEF, SPEC-v5, ratification, and red-team records.
+- **Base:** exact `07553ead337a70a9241f826d27571650262b289c`; new branch `feat/833-constrained-recovery-command`; merge-base assertion passed before any commit.
+- **Constraints:** No rebase/pull during build; no live install/symlink or live broker/socket/tmux/systemd/model-stream activation; no self-review, PR, merge, push, or P6 fire. `docs/TASKS.md` is orchestrator-owned and will not be modified.
+- **Plan:**
+  1. Add red-first unit tests against the recovery broker entrypoint for fresh recovery challenge, normal-receipt replay refusal, observable partial-delivery refusal, and the explicit middle-drop negative capability; commit the RED test and preserve its command output.
+  2. Implement the recovery command as a thin driver over shared WI-5 broker transitions and the trusted observer seam; it never accepts caller receipt text.
+  3. Add the source-resident skill under `packages/mosaic/framework/skills/`, plus a tmp-only #824 bridge projection test.
+  4. Build an unfired, default-3-run P6 standalone real-socket driver; it is not added to package scripts and will not be run.
+  5. Run targeted broker/mutator/receipt suites, lint, and format check; report head to `mosaic-100` and stop.
+- **Risks:** The observer can only represent an exact latest message. Tail-preserving middle-drop is intentionally not claimed receipt-detectable (T-C residual deferred to WI-7 server evidence).
+- **Evidence:** Original RED test committed at `3b5513bd6efad0c06b599fc759a66cff4286db04`; expected `UNKNOWN_ACTION` is logged in `/home/hermes/agent-work/reviews/833-wi6-red.log`. B1/B2 repair RED is `f4beedc3e7ac2e142dcbdeefb0e5ee40c20d9b86` in `/home/hermes/agent-work/reviews/833-wi6-repair-red.log`. R2 adversarial RED is committed at `65e2bd71cf360b6f45c86eec0b06ae24494832d8` in `/home/hermes/agent-work/reviews/833-wi6-repair-R2-red.log` before the literal-only gate source: the private real-gate/real-daemon battery covers every argv position (executable, path, phase, each flag, each value) for command substitution, backticks, parameter/arithmetic expansion, brace/tilde, process substitution, glob, redirects, control operations, embedded newline, and quotes. P6 remains rebuilt and unfired. The ordinary package Vitest/lint/typecheck/root-format commands cannot resolve their executables in this intentionally dependency-free fresh worktree (`node_modules` absent); no install/symlink workaround was used.
+- **Budget:** No explicit task token cap was supplied; scope is fixed to WI-6 and no unrelated behavior will be added.

docs/scratchpads/838-broker-acceptance-flake.md

@@ -0,0 +1,44 @@
+# Issue #838 — Broker acceptance socket flake
+
+## Objective
+
+Eliminate high-contention uncaught JSON parse failures in lease-broker and mutator-gate acceptance helpers without laundering malformed/empty replies into passing assertions.
+
+## Constraints
+
+- Branch: `fix/838-broker-acceptance-flake` in `/home/hermes/agent-work/stack-838-flakefix`.
+- Red-first TDD with a forced empty/truncated reply path and deterministic rejection or documented retry.
+- Read newline-framed replies completely; reject malformed broker replies with byte length/content context.
+- Determine RIDER2 branch before finalizing: test-harness-only `(a)` or daemon write truncation `(b)`.
+- If product-side, prove the real Claude/Pi adapter read path fails closed; fix any allow-risk.
+- Coverage >=85% per changed executable through real tests.
+- Full suite and repository gates green; independent exact-head review required.
+- Push and open a PR containing `closes #838`; do not merge.
+
+## Progress
+
+- 2026-07-17: Reclaimed from #824. Confirmed clean worktree on `fix/838-broker-acceptance-flake` at main base `abd2791f59b3f06f46dd08e55298ced72f6aa7c2`.
+- RED evidence: after dependency setup, `broker-test-client.spec.ts` failed to load the intentionally absent shared client module. Its contract forces empty-close retry, repeated truncated-close rejection with byte context, and newline-terminated malformed-reply rejection.
+- RIDER2 verdict: branch **(b)**. `daemon.py` starts one connection deadline before request reading, then may spend that budget waiting for `broker_lock`; after handling, `remaining <= 0` returns without writing. A timed `sendall` failure can likewise close after a partial write. A deterministic socketpair probe held the lock past `CONNECTION_DEADLINE_SECONDS` and observed `deadline_probe_reply_length=0`.
+- Adapter tripwire: real subprocess executions of `mutator-gate.py` for both `--runtime claude` and `--runtime pi` against actual Unix servers returning empty and truncated replies all exited 2 with `GATE_UNAVAILABLE`. Adapter fail-close is proven; there is no ALLOW risk.
+- Residual: production broker reply loss remains an availability-denial path under extreme contention, but cannot grant mutator authority. The acceptance-only client retries early closes and otherwise rejects with response byte length, escaped bytes, and hex; malformed newline-framed replies are never retried or converted to reply objects.
+- Shared client now owns newline framing and parsing for both acceptance suites. Focused suites pass 60 tests, including the real adapter tripwire.
+- Coverage gate: changed helper is 100% statements/lines/functions and 90% branches; existing `skill.ts` remains above 85% per-file thresholds.
+
+## Scope corrections and bounded product repair
+
+- Coordinator correction superseded the initial push/PR and retry language: this lane is BUILD-ONLY, and early-close retries are forbidden because they can mask a committed broker transaction. Nothing may be pushed or opened until explicitly cleared.
+- Revised RED evidence: the no-retry empty/truncated tests failed because the first failed exchange was retried into `{ ok: true }`; the daemon regression failed because a slow completed `broker.handle()` produced `b''` instead of a newline-framed reply.
+- Client repair: both former duplicated helpers use one shared reader. Empty, truncated, malformed, oversized, timed-out, and socket-error replies reject `BrokerTransportError` with a typed `kind`, attempt count fixed at one, response length, escaped bytes, and hex. No retry and no catch-to-reply conversion exists.
+- Product repair: `daemon.py` now has independent bounded read, broker-lock queue, and send budgets. Lock queue exhaustion returns explicit `BROKER_BUSY` before `broker.handle()` can mutate state. Once handling starts it finishes atomically, and its reply always receives a fresh send timeout instead of being skipped because read/lock/fsync consumed a shared deadline.
+- Product GREEN evidence: deterministic socketpair tests prove lock saturation returns framed `BROKER_BUSY` without invoking `handle()`, and a handle that completes after the former one-second shared deadline still returns its complete framed reply.
+- RIDER2b remains **fail-closed**: real Claude and Pi `mutator-gate.py` subprocesses against empty and truncated Unix-socket replies exit 2 with `GATE_UNAVAILABLE`; no malformed/default ALLOW was observed.
+- Residual/tripwire: an unavoidable peer disconnect or send failure can still lose acknowledgement after a valid transaction commits. The affected adapter call fails closed. A valid `promote_lease` may nevertheless remain VERIFIED after its acknowledgement is lost; that is authority-observability divergence requiring WI-3/Opus security review rather than expansion of #838. #838 does not add retries or attempt a protocol redesign.
+- Final package evidence: recursive Mosaic dependency build passed; 73 Vitest files / 1,392 tests passed; deadline unit tests 2/2, real runtime tool tests 15/15, launch guard tests 12/12, inventory 14/14, and shell regressions passed.
+- Final coverage: `broker-test-client.ts` 99.24% statements/lines, 86.11% branches, 100% functions under per-file >=85% thresholds. Repository typecheck 42/42, lint 23/23, and format check passed.
+- Independent Codex exact-head review requested one framing fix: a valid frame followed by trailing bytes in a later socket chunk could resolve before the garbage arrived. Security review also flagged complete token-bearing reply bodies in diagnostic properties/logs.
+- Review RED evidence: delayed cross-chunk garbage resolved `{ ok: true }` instead of rejecting, and a truncated `promotion_token` remained in the typed error. The tests use separate timed writes to prevent kernel/event-loop coalescing.
+- Review remediation: the shared client now accumulates through EOF, requires exactly one terminal newline, then parses inside a rejecting error boundary. Diagnostic bodies are capped at 256 bytes, sensitive broker fields are fully redacted, and a SHA-256 digest preserves correlation without credential disclosure.
+- Post-review coverage: `broker-test-client.ts` 99.35% statements/lines, 86.66% branches, 100% functions. Final full suite is 73 files / 1,394 tests plus all Python/shell gates; recursive build, typecheck, lint, and format are green.
+- Fresh exact-head Codex security review: risk `none`, no findings. Fresh code review found only that the real-adapter subprocess proof lacked a timeout; it now has a five-second bound and fails with runtime/wire context while closing the fake server. The focused Python suite remains 15/15 green.
+- Mandatory Opus SECREV remains coordinator-owned and pending before any push/PR decision; this build is intentionally local-only.

docs/scratchpads/fcm-m5-001-fleet-config-operator-docs.md

@@ -0,0 +1,85 @@
+# FCM-M5-001 — Fleet configuration operator documentation
+
+- Task: `FCM-M5-001`
+- Issue: `#758`
+- Branch: `docs/758-fleet-config-operator-docs`
+- Exact base: `9745bc3f29c26b021a478b7ad03cfb494f6c9de3` (tree `4da210da9a71b035130d4160a4a2e691bdfde2da`)
+
+## Objective
+
+Deliver the accepted fleet documentation information architecture, operator workflows, operations and migration references, comprehensive contract documentation, and deterministic link/example validation without live fleet action or product mutation.
+
+## Scope and constraints
+
+- Documentation, examples, documentation validation, and tracking only.
+- `roster.yaml` remains the sole writable desired-state authority; generated state is derived/observed.
+- No M4-002 implementation or execution; no canary, migration, rollback, deployment, systemd/tmux/session, generated projection, or product mutation.
+- `mos-comms` is temporary and is not permanent architecture.
+- Parent issue `#758` remains open through M5.
+- No credentials, sensitive values, or privileged command content.
+
+## Plan
+
+1. Update tracking first with exact M4-001 evidence and mark M5-001 in progress.
+2. Map the M0 checklist and current implementation behavior to documentation pages.
+3. Author operator, operations, migration, schema/reference, recovery, troubleshooting, and security/authority docs.
+4. Add or extend deterministic documentation/link/example validation if required, red-first.
+5. Run repository documentation, link, example, and relevant package checks; review and remediate.
+6. Commit, queue-guard, push one branch, and open one wrapper-created PR; stop for independent review.
+
+## Budget
+
+- Task estimate: `24K`.
+- Working cap: stay within the card estimate by parallelizing read-only discovery and limiting edits to checklist-required artifacts.
+
+## Progress checkpoints
+
+- [x] Loaded repository/global delivery and documentation contracts.
+- [x] Verified `origin/main` is exact required base and created isolated worktree.
+- [x] Tracking updated first.
+- [x] Checklist mapped and docs authored.
+- [x] Validation green.
+- [x] Review/remediation complete.
+- [x] Commit, queue guard, push, PR #789.
+- [x] Rejected exact-head RoR findings repaired on a new descendant commit candidate.
+- [ ] New exact-head review and CI after repair push.
+
+## Tests and verification
+
+- Red-first documentation validator initially failed for the absent fleet entry point and canonical
+  example, then passed after the IA and example were added.
+- `pnpm --filter @mosaicstack/mosaic exec vitest run src/fleet/roster-v2.spec.ts src/fleet/example-profile-dispositions.spec.ts src/fleet/fleet-documentation.spec.ts src/fleet/v1-v2-migration.spec.ts src/fleet/generated-env-boundary.spec.ts src/fleet/fleet-agent-crud.spec.ts src/fleet/fleet-reconciler.spec.ts` — 7 files, 195 tests passed after building workspace dependencies.
+- `pnpm format:check` — passed.
+- `pnpm lint` — 23 tasks passed.
+- `pnpm typecheck` — 42 tasks passed.
+- `pnpm test` — 43 tasks passed; `@mosaicstack/mosaic` contributed 61 files and 1,045 tests.
+- `bash packages/mosaic/framework/tools/quality/scripts/verify-sanitized.sh` — passed.
+- `bash packages/mosaic/framework/tools/quality/scripts/check-resident-budget.sh` — passed.
+- `git diff --check` — passed before final review.
+- Independent staged-snapshot review identified four documentation/validation blockers: reboot safety,
+  heartbeat observation, migration failure envelope, and example-scan coverage. All were remediated;
+  focused rereview approved the staged remediations with no blockers. Exact committed-head review remains
+  a post-PR gate.
+- Post-remediation `@mosaicstack/mosaic` lint/typecheck passed; package test passed 61 files / 1,045
+  tests; sanitization and resident-budget gates passed again.
+
+- Post-PR exact-head RoR on rejected head `0aee2c09819fd06e28f927384ea56fa2ef374edf`
+  identified five blockers: update-lifecycle overclaim, missing explicit `fleet validate` gap,
+  fragment-blind link validation, unsupported checklist-evidence claim, and insufficient example safety
+  validation. Red-first regressions failed before implementation for missing-heading, privileged-command,
+  and credential-format fixtures. Repairs now preserve/document implementation truth, validate heading
+  fragments, narrow checklist claims, and scan fenced/canonical examples for common credential formats
+  and privileged commands without printing fixture values.
+- Repair-focused fleet contracts: 7 files, 192 tests passed after review remediation; documentation
+  validator contributed 11 tests. Full gates passed: format; lint 23/23; typecheck 42/42; test 43/43
+  tasks with `@mosaicstack/mosaic` 61 files / 1,052 tests; sanitization; resident budget; and
+  `git diff --check`. New exact-head review/CI remain pending until the repair commit is pushed.
+
+## Risks/blockers
+
+- Checklist may include behavior intentionally deferred to M4-002/M5-002; such items must be recorded as approved-existing holds rather than claimed delivered.
+- Commands/examples must remain non-live and avoid privileged/sensitive content.
+
+## Final evidence
+
+- Pending.

docs/scratchpads/ms-792-fleet-enoent-installer.md

@@ -0,0 +1,38 @@
+# ms-792 — Fleet roster error handling and installer heading
+
+## Objective
+
+Make expected missing or malformed fleet roster configuration fail with an actionable message and nonzero exit instead of a raw Node stack trace. Ensure the installer preserves the `@mosaicstack/mosaic` heading.
+
+## Plan
+
+1. Add failing coverage for missing and malformed roster input.
+2. Centralize roster-file read and parse error translation; add the CLI async error boundary.
+3. Sweep fleet command read paths that bypass the roster loader.
+4. Replace the installer heading output with format-safe rendering and test it.
+5. Run focused and repository quality checks; request independent review.
+
+## Progress
+
+- 2026-07-16: Confirmed issue #792 and branch base `9745bc3f`.
+- 2026-07-16: Installed locked workspace dependencies using a worktree-local pnpm store; no `.mosaic/` files were changed intentionally.
+- 2026-07-16: Added a shared roster read/parse guard and routed v1 fleet commands plus v1/v2 selection through Commander’s actionable nonzero error path. V2 command modules already return structured nonzero JSON errors for their guarded reads.
+- 2026-07-16: Replaced installer heading `echo` with format-safe `printf`; added a regression check for the scoped package heading.
+- 2026-07-16: Rebuilt CLI and manually verified `fleet ps` with no roster prints the initialization hint, exits 1, and has no stack trace.
+- 2026-07-17: Rebased #818 onto `origin/main` at `9ddc6fbd` (#791 PR3). The added `fleet regen` command had a canonical roster read in its sibling module; it now uses the same missing-roster guard and Commander exit path. Internal NORTH_STAR, preset, and post-write invariant reads remain intentionally unguarded.
+- 2026-07-17: RoR found that semantically invalid v1 documents still escaped as plain `Error` values. `normalizeFleetRosterV1` now preserves each validation message while converting it to `FleetRosterConfigurationError`, so its command callers use the actionable nonzero Commander path.
+
+## Verification
+
+- `pnpm --filter @mosaicstack/mosaic test` — PASS (61 files, 1,046 tests; executed outside sandbox because CLI smoke tests spawn Node)
+- `pnpm typecheck` — PASS
+- `pnpm lint` — PASS
+- `pnpm format:check` — PASS
+- `pnpm --filter @mosaicstack/mosaic exec vitest run src/commands/fleet.spec.ts src/commands/install-heading.spec.ts` — PASS (209 tests)
+- `pnpm --filter @mosaicstack/mosaic exec vitest run src/commands/fleet-regen-command.spec.ts` — PASS (27 tests, including missing canonical roster)
+- `pnpm --filter @mosaicstack/mosaic exec vitest run src/commands/fleet.spec.ts -t "semantically invalid v1 roster"` — RED then PASS; verifies duplicate agent names are reported as `fleet.roster` exit 1 without a stack trace.
+- Instrumented Vitest coverage is unavailable because `@vitest/coverage-v8` is not declared in this repository. Each branch added in the roster guard has direct unit coverage.
+
+## Risks / blockers
+
+- Dependency installation is required before executing Vitest, TypeScript, lint, and formatting gates.

packages/coord/src/__tests__/runtime-launch-gate.test.ts

@@ -0,0 +1,41 @@
+import { describe, expect, it } from 'vitest';
+
+import { resolveLaunchCommand } from '../runner.js';
+
+describe('coord consequential-runtime launch gate', () => {
+  it('routes default and direct configured Claude commands through mosaic', () => {
+    expect(resolveLaunchCommand('claude', 'continue', undefined)).toEqual([
+      'mosaic',
+      'claude',
+      '-p',
+      'continue',
+    ]);
+    expect(resolveLaunchCommand('claude', 'continue', ['claude', '-p', '{prompt}'])).toEqual([
+      'mosaic',
+      'claude',
+      '-p',
+      'continue',
+    ]);
+  });
+
+  it('preserves an already-gated Claude command and rejects unknown launchers', () => {
+    expect(
+      resolveLaunchCommand('claude', 'continue', ['mosaic', 'yolo', 'claude', '{prompt}']),
+    ).toEqual(['mosaic', 'yolo', 'claude', 'continue']);
+    expect(() => resolveLaunchCommand('claude', 'continue', ['custom-launcher'])).toThrow(
+      /must use `mosaic claude`/,
+    );
+  });
+
+  it('does not change the out-of-scope Codex command contract', () => {
+    expect(resolveLaunchCommand('codex', 'continue', undefined)).toEqual([
+      'codex',
+      '-p',
+      'continue',
+    ]);
+    expect(resolveLaunchCommand('codex', 'continue', ['codex', '{prompt}'])).toEqual([
+      'codex',
+      'continue',
+    ]);
+  });
+});

packages/coord/src/runner.ts

@@ -179,32 +179,41 @@ function buildContinuationPrompt(params: {
     `3. Read \`${mission.scratchpadFile}\` for session history and decisions`,
     `4. Read \`${mission.tasksFile}\` for current task state`,
     '5. `git pull --rebase` to sync latest changes',
-    `6. Launch runtime with \`${runtime} -p\``,
+    `6. Launch runtime with \`mosaic ${runtime} -p\``,
     `7. Continue execution from task **${taskId}**`,
     '8. Follow Two-Phase Completion Protocol',
     `9. You are the SOLE writer of \`${mission.tasksFile}\``,
   ].join('\n');
 }
 
-function resolveLaunchCommand(
+export function resolveLaunchCommand(
   runtime: 'claude' | 'codex',
   prompt: string,
   configuredCommand: string[] | undefined,
 ): string[] {
   if (configuredCommand === undefined || configuredCommand.length === 0) {
-    return [runtime, '-p', prompt];
+    return runtime === 'claude' ? ['mosaic', 'claude', '-p', prompt] : [runtime, '-p', prompt];
   }
 
   const hasPromptPlaceholder = configuredCommand.some((value) => value === '{prompt}');
   const withInterpolation = configuredCommand.map((value) =>
     value === '{prompt}' ? prompt : value,
   );
+  const command = hasPromptPlaceholder ? withInterpolation : [...withInterpolation, prompt];
 
-  if (hasPromptPlaceholder) {
-    return withInterpolation;
+  if (runtime !== 'claude') return command;
+  if (
+    command[0] === 'mosaic' &&
+    (command[1] === 'claude' || (command[1] === 'yolo' && command[2] === 'claude'))
+  ) {
+    return command;
   }
-
-  return [...withInterpolation, prompt];
+  if (command[0] === 'claude') {
+    return ['mosaic', 'claude', ...command.slice(1)];
+  }
+  throw new Error(
+    'Custom Claude task commands must use `mosaic claude` so lease registration cannot be bypassed.',
+  );
 }
 
 async function writeAtomicJson(filePath: string, payload: unknown): Promise<void> {

packages/mosaic/framework/defaults/README.md

@@ -177,15 +177,23 @@ bash tools/install.sh --cli         # npm CLI only (skip framework)
 bash tools/install.sh --ref v1.0    # Install from a specific git ref
 ```
 
+The installer rejects unrecognized flags or positional arguments before making changes and prints the supported-option usage.
+
 ## Universal Skills
 
-The installer syncs skills from `mosaic/agent-skills` into `~/.config/mosaic/skills/`, then links each skill into runtime directories.
+The installer syncs skills from `mosaic/agent-skills` into `~/.config/mosaic/skills/`. Install, wizard finalization, and `mosaic update` automatically reconcile every canonical skill into Claude Code's `~/.claude/skills/` directory.
 
 ```bash
-mosaic sync                                    # Full sync (clone + link)
-~/.config/mosaic/bin/mosaic-sync-skills --link-only   # Re-link only
+mosaic sync                         # Full canonical catalog sync
+mosaic skill list                   # Show registered, missing, dangling, and foreign entries
+mosaic skill register <name>        # Register or repair one canonical Claude link
+mosaic skill unregister <name>      # Remove one Mosaic-owned Claude link
 ```
 
+Skill names are direct children using `[A-Za-z0-9][A-Za-z0-9._-]*`, not paths. Registration rejects traversal/control characters and never replaces foreign files, directories, or symlinks; unregister removes only links that point inside the canonical Mosaic skill root. After registering during a running Claude Code session, use `/reload-skills` or start a new session.
+
+M1 lifecycle management targets Claude Code. Pi can discover the canonical Mosaic root through its launcher configuration. Codex parity remains follow-up scope and continues to use the existing full skill-sync linker.
+
 ## Health Audit
 
 ```bash

packages/mosaic/framework/framework-manifest.txt

@@ -35,6 +35,8 @@ CONTRIBUTING.md
 defaults/**
 examples/**
 guides/**
+# Shipped framework subtree — canonical skills are upgrade-reconciled.
+skills/**
 install.sh
 install.ps1
 LICENSE
@@ -67,6 +69,9 @@ policy/**
 memory/**
 sources/**
 credentials/**
+# Operator-authored/customized skills live separately from canonical skills/ and
+# must remain structurally unprunable even as skills/** is framework-owned.
+skills-local/**
 # Secret-bearing operator file INSIDE the framework-owned tools/ subtree.
 # Listed explicitly so the deny-wins rule carves it out of tools/**.
 tools/_lib/credentials.json

packages/mosaic/framework/guides/ORCHESTRATOR.md

@@ -3,7 +3,7 @@
 When spawning workers, include skill loading in the kickstart:
 
 ```bash
-claude -p "Read ~/.config/mosaic/skills/nestjs-best-practices/SKILL.md then implement..."codex exec "Read ~/.config/mosaic/skills/nestjs-best-practices/SKILL.md then implement..."
+mosaic claude -p "Read ~/.config/mosaic/skills/nestjs-best-practices/SKILL.md then implement..."codex exec "Read ~/.config/mosaic/skills/nestjs-best-practices/SKILL.md then implement..."
 ```
 
 #### **MANDATORY**

packages/mosaic/framework/runtime/claude/settings.json

@@ -1,7 +1,48 @@
 {
   "model": "opus",
   "hooks": {
+    "PreCompact": [
+      {
+        "matcher": ".*",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "python3 \"$HOME/.config/mosaic/tools/lease-broker/revoke-lease.py\" --runtime claude --reason pre-compact"
+          }
+        ]
+      }
+    ],
+    "SessionStart": [
+      {
+        "matcher": "compact",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "python3 \"$HOME/.config/mosaic/tools/lease-broker/revoke-lease.py\" --runtime claude --reason session-start-compact"
+          }
+        ]
+      },
+      {
+        "matcher": "resume|clear",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "python3 \"$HOME/.config/mosaic/tools/lease-broker/revoke-lease.py\" --runtime claude --reason session-start-rollover --bump-generation"
+          }
+        ]
+      }
+    ],
     "PreToolUse": [
+      {
+        "matcher": ".*",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "python3 ~/.config/mosaic/tools/lease-broker/mutator-gate.py --runtime claude --recovery-command ~/.config/mosaic/tools/lease-broker/recover-context.py",
+            "timeout": 3
+          }
+        ]
+      },
       {
         "matcher": "Write|Edit|MultiEdit",
         "hooks": [
@@ -38,6 +79,11 @@
     "Stop": [
       {
         "hooks": [
+          {
+            "type": "command",
+            "command": "python3 ~/.config/mosaic/tools/lease-broker/receipt-observer-client.py --runtime claude --latest-entry",
+            "timeout": 3
+          },
           {
             "type": "command",
             "command": "~/.config/mosaic/tools/qa/reflect-stop-hook.sh",

packages/mosaic/framework/runtime/pi/lease-lifecycle.ts

@@ -0,0 +1,93 @@
+export type LeaseLifecycleRunner = (args: string[]) => boolean;
+
+type LifecycleEvent = {
+  reason?: unknown;
+  toolName?: unknown;
+};
+
+type LifecycleHandler = (
+  event: LifecycleEvent,
+  context: Record<string, unknown>,
+) => unknown | Promise<unknown>;
+
+export interface LeaseLifecyclePiApi {
+  on(event: string, handler: LifecycleHandler): void;
+}
+
+const ROLLOVER_REASONS = new Set(['reload', 'new', 'resume', 'fork']);
+
+function eventReason(event: LifecycleEvent): string {
+  return typeof event.reason === 'string' && event.reason.length > 0 ? event.reason : 'unknown';
+}
+
+/**
+ * Register redundant Pi compaction observers and same-PID generation rollover.
+ *
+ * A failed pre-compaction observer cancels compaction. A failed post-compaction
+ * observer or generation rollover locally blocks later tools in addition to the
+ * broker-backed all-tools gate.
+ */
+export function registerLeaseLifecycleHooks(
+  pi: LeaseLifecyclePiApi,
+  runRevoker: LeaseLifecycleRunner,
+): void {
+  let postCompactReason: string | null = null;
+  let postCompactFailure = false;
+  let rolloverFailure = false;
+
+  pi.on('session_before_compact', async (event) => {
+    const reason = eventReason(event);
+    const revoked = runRevoker([
+      '--runtime',
+      'pi',
+      '--reason',
+      `pi-session-before-compact:${reason}`,
+    ]);
+    if (!revoked) return { cancel: true };
+    return undefined;
+  });
+
+  pi.on('session_compact', async (event) => {
+    postCompactReason = eventReason(event);
+  });
+
+  pi.on('context', async () => {
+    if (postCompactReason === null) return undefined;
+    const reason = postCompactReason;
+    const revoked = runRevoker([
+      '--runtime',
+      'pi',
+      '--reason',
+      `pi-context-after-compact:${reason}`,
+    ]);
+    if (revoked) {
+      postCompactReason = null;
+      postCompactFailure = false;
+    } else {
+      postCompactFailure = true;
+    }
+    return undefined;
+  });
+
+  pi.on('session_start', async (event) => {
+    const reason = eventReason(event);
+    if (!ROLLOVER_REASONS.has(reason)) return undefined;
+    const revoked = runRevoker([
+      '--runtime',
+      'pi',
+      '--reason',
+      `pi-session-start:${reason}`,
+      '--bump-generation',
+    ]);
+    rolloverFailure = !revoked;
+    return undefined;
+  });
+
+  pi.on('tool_call', async () => {
+    if (!postCompactFailure && !rolloverFailure) return undefined;
+    return {
+      block: true,
+      reason: 'BLOCKED: Mosaic lease lifecycle revoke failed; runtime remains UNVERIFIED.',
+    };
+  });
+}

packages/mosaic/framework/runtime/pi/mosaic-extension.ts

@@ -22,12 +22,23 @@ import {
 import { join, basename } from 'node:path';
 import { homedir } from 'node:os';
 import { execSync, spawnSync } from 'node:child_process';
+import { registerLeaseLifecycleHooks, type LeaseLifecyclePiApi } from './lease-lifecycle.js';
 
 // ---------------------------------------------------------------------------
 // Config
 // ---------------------------------------------------------------------------
 
 const MOSAIC_HOME = process.env['MOSAIC_HOME'] ?? join(homedir(), '.config', 'mosaic');
+const MUTATOR_GATE = join(MOSAIC_HOME, 'tools', 'lease-broker', 'mutator-gate.py');
+const LEASE_REVOKER = join(MOSAIC_HOME, 'tools', 'lease-broker', 'revoke-lease.py');
+const RECOVERY_COMMAND = join(MOSAIC_HOME, 'tools', 'lease-broker', 'recover-context.py');
+const RECEIPT_OBSERVER_CLIENT = join(
+  MOSAIC_HOME,
+  'tools',
+  'lease-broker',
+  'receipt-observer-client.py',
+);
+const RECOVERY_TOOL = 'mosaic_context_recover';
 
 // ---------------------------------------------------------------------------
 // Helpers
@@ -106,6 +117,104 @@ function nowIso(): string {
   return new Date().toISOString().replace(/\.\d{3}Z$/, 'Z');
 }
 
+function runPiLeaseRevoker(args: string[]): boolean {
+  const result = spawnSync('python3', [LEASE_REVOKER, ...args], {
+    encoding: 'utf8',
+    timeout: 2_000,
+    env: process.env,
+  });
+  return result.status === 0;
+}
+
+function checkPiMutatorGate(toolName: string): { block: true; reason: string } | undefined {
+  const result = spawnSync('python3', [MUTATOR_GATE, '--runtime', 'pi'], {
+    input: `${JSON.stringify({ tool_name: toolName })}\n`,
+    encoding: 'utf8',
+    timeout: 2_000,
+    env: process.env,
+  });
+  if (result.status === 0) return undefined;
+  const detail = String(result.stderr ?? '')
+    .trim()
+    .split('\n')[0];
+  return {
+    block: true,
+    reason: detail || 'BLOCKED: Mosaic mutator gate is unavailable or the lease is UNVERIFIED.',
+  };
+}
+
+function checkPiRecoveryGate(): { block: true; reason: string } | undefined {
+  return checkPiMutatorGate(RECOVERY_TOOL);
+}
+
+function assistantMessageText(message: unknown): string | undefined {
+  if (typeof message !== 'object' || message === null) return undefined;
+  const value = message as { role?: unknown; content?: unknown };
+  if (value.role !== 'assistant') return undefined;
+  if (typeof value.content === 'string') return value.content;
+  if (!Array.isArray(value.content)) return undefined;
+  const text: string[] = [];
+  for (const part of value.content) {
+    if (typeof part !== 'object' || part === null) return undefined;
+    const typed = part as { type?: unknown; text?: unknown };
+    if (typed.type !== 'text' || typeof typed.text !== 'string') return undefined;
+    text.push(typed.text);
+  }
+  return text.join('');
+}
+
+function recordPiMessageEnd(message: unknown): void {
+  const latestAssistantMessage = assistantMessageText(message);
+  if (latestAssistantMessage === undefined) return;
+  // This sends finalized Pi message_end content only to the daemon-owned
+  // authenticated observer transport, never to the public broker request API.
+  spawnSync('python3', [RECEIPT_OBSERVER_CLIENT, '--runtime', 'pi'], {
+    input: `${JSON.stringify({ latest_assistant_message: latestAssistantMessage })}\n`,
+    encoding: 'utf8',
+    timeout: 2_000,
+    env: process.env,
+  });
+}
+
+function runPiRecoveryCommand(params: {
+  phase: 'begin' | 'complete';
+  construction?: string;
+  compactionEpoch?: number;
+  requestEpoch?: number;
+}): { content: Array<{ type: 'text'; text: string }> } {
+  const args = [RECOVERY_COMMAND, params.phase];
+  if (params.phase === 'begin') {
+    if (
+      typeof params.construction !== 'string' ||
+      !Number.isInteger(params.compactionEpoch) ||
+      !Number.isInteger(params.requestEpoch) ||
+      params.compactionEpoch < 0 ||
+      params.requestEpoch < 0
+    ) {
+      return {
+        content: [
+          { type: 'text', text: 'Recovery begin requires construction and non-negative epochs.' },
+        ],
+      };
+    }
+    args.push(
+      '--construction',
+      params.construction,
+      '--compaction-epoch',
+      String(params.compactionEpoch),
+      '--request-epoch',
+      String(params.requestEpoch),
+    );
+  }
+  const result = spawnSync('python3', args, {
+    encoding: 'utf8',
+    timeout: 3_000,
+    env: process.env,
+  });
+  const output = result.status === 0 ? String(result.stdout ?? '') : String(result.stderr ?? '');
+  return { content: [{ type: 'text', text: output || 'Constrained recovery refused.' }] };
+}
+
 // ---------------------------------------------------------------------------
 // Mission detection
 // ---------------------------------------------------------------------------
@@ -250,6 +359,40 @@ export default function register(pi: ExtensionAPI) {
   let hbModel: string | null = null;
   let hbTimer: ReturnType<typeof setInterval> | null = null;
 
+  // ── Compaction observers and same-PID generation rollover ─────────────
+  registerLeaseLifecycleHooks(pi as unknown as LeaseLifecyclePiApi, runPiLeaseRevoker);
+
+  // ── Whole mutator-class authorization gate ────────────────────────────
+  // Every Pi tool, including unknown/custom tools, reaches the broker-backed
+  // class gate before execution. Broker/script failure blocks fail-closed.
+  pi.on('tool_call', async (event) => checkPiMutatorGate(event.toolName));
+
+  // Pi records only a finalized assistant entry at message_end. It never uses
+  // after_provider_response, which occurs before stream consumption.
+  pi.on('message_end', async (event) => {
+    recordPiMessageEnd((event as unknown as { message?: unknown }).message);
+  });
+
+  // The recovery custom tool is the only Pi invocation that maps to the
+  // broker's exempt RECOVERY_TOOL identity. It is not a Bash exception.
+  pi.registerTool({
+    name: RECOVERY_TOOL,
+    label: 'Mosaic Context Recovery',
+    description:
+      'Run the constrained broker-backed context recovery flow. This is the sole ungated mutator.',
+    parameters: Type.Object({
+      phase: Type.Union([Type.Literal('begin'), Type.Literal('complete')]),
+      construction: Type.Optional(Type.String()),
+      compactionEpoch: Type.Optional(Type.Integer({ minimum: 0 })),
+      requestEpoch: Type.Optional(Type.Integer({ minimum: 0 })),
+    }),
+    async execute(_toolCallId, params) {
+      const blocked = checkPiRecoveryGate();
+      if (blocked !== undefined) return { content: [{ type: 'text', text: blocked.reason }] };
+      return runPiRecoveryCommand(params);
+    },
+  });
+
   // ── Session Start ─────────────────────────────────────────────────────
   pi.on('session_start', async (_event, ctx) => {
     sessionCwd = process.cwd();

packages/mosaic/framework/skills/mosaic-context-refresh/SKILL.md

@@ -0,0 +1,65 @@
+---
+name: mosaic-context-refresh
+description: Run the constrained Mosaic context-recovery flow after compaction or directive-loss. This is a thin wrapper over the broker-backed recovery command; it never treats a receipt as a safety or residency proof.
+---
+
+# mosaic-context-refresh
+
+Use this only after compaction, session resume, or confirmed directive drift. It invokes the
+**single ungated mutator**, `tools/lease-broker/recover-context.py`; every other consequential
+mutator remains behind the verified lease gate.
+
+## Wrapper procedure
+
+1. The runtime supplies the exact validated normative-fragment construction and the current
+   compaction/request epochs.
+   - **Claude:** invoke only this direct command shape (no shell composition):
+
+     ```bash
+     python3 /absolute/path/to/mosaic/tools/lease-broker/recover-context.py begin --construction /absolute/path/to/mosaic-context-refresh-construction.json --compaction-epoch 0 --request-epoch 0
+     ```
+
+     This is a literal argv template: replace the recover-context.py path and construction JSON path
+     with the literal absolute paths for your install, then replace each epoch with literal decimal
+     digits. Do not use variables, quoting, globs, redirects,
+     shell operators, substitutions, or line continuations. Claude's all-tools gate maps only this
+     fully literal recovery shape to `mosaic_context_recover`; ordinary `Bash` remains gated.
+
+   - **Pi:** call the registered `mosaic_context_recover` tool with `phase: "begin"`,
+     `construction`, `compactionEpoch`, and `requestEpoch`. It is the exact broker-exempt tool name;
+     Pi `bash` and every other tool remain gated.
+
+   Both forms delegate to the shipped WI-5 broker transition: revoke first, build the canonical
+   `B_payload`/`H_payload`, enter `PENDING_DELIVERY`, and mint a fresh one-time challenge. They print
+   the terminal receipt envelope to deliver exactly as returned.
+
+2. The current assistant message copies that one terminal receipt verbatim. It does not compute a
+   hash, add prose, quote a prior receipt, or present a caller-supplied receipt/challenge.
+3. The production trusted-observer transport records that finalized assistant entry before completion:
+   - **Claude** selects the latest assistant entry at its `Stop` hook.
+   - **Pi** records only finalized assistant content at `message_end` (never
+     `after_provider_response`).
+
+   Then invoke completion with the same adapter form: Claude runs
+   `python3 /absolute/path/to/mosaic/tools/lease-broker/recover-context.py complete`; Pi calls
+   `mosaic_context_recover` with `phase: "complete"`. Completion supplies no receipt or challenge
+   argument. The broker observes the exact latest assistant entry, commits evidence, consumes its own
+   fresh challenge, and promotes VERIFIED last. If observation is absent, malformed, stale, or
+   duplicated, recovery remains UNVERIFIED and a retry begins a new cycle.
+
+## Scope and honesty
+
+- A receipt from the normal verification path cannot be replayed through recovery: recovery mints a
+  distinct current challenge and does not accept caller-provided receipt text as evidence.
+- Observable absent, malformed, prefix-truncated, and adapter-mutated terminal receipts do not
+  promote. “Tail-only” is non-promoting only when the delivered terminal bytes are concretely
+  malformed or incomplete.
+- **Negative capability:** a tail-preserving middle drop is not represented as receipt-detectable.
+  It is a T-C injection-contract residual deferred to WI-7 server-side evidence; do not claim this
+  skill or receipt catches it.
+- The receipt is a T-A delivery/liveness prerequisite only. It never proves obedience, comprehension,
+  durable residency, or safety; the whole mutator-class gate and server-side branch protection retain
+  those roles.
+
+This source-resident skill is projected by the Mosaic skill bridge after framework install/upgrade.
+Do not create a live symlink manually.

packages/mosaic/framework/tools/_scripts/mosaic-sync-skills

@@ -161,6 +161,7 @@ link_targets=(
 )
 
 canonical_real="$(readlink -f "$MOSAIC_SKILLS_DIR")"
+local_real="$(readlink -f "$MOSAIC_LOCAL_SKILLS_DIR")"
 
 # Build an associative array from the colon-separated whitelist for O(1) lookup.
 # When MOSAIC_INSTALL_SKILLS is empty, all skills are allowed.
@@ -203,7 +204,14 @@ link_skill_into_target() {
   link_path="$target_dir/$name"
 
   if [[ -L "$link_path" ]]; then
+    local raw_target resolved_target
+    raw_target="$(readlink "$link_path")"
+    resolved_target="$(node -e 'const p=require("node:path"); process.stdout.write(p.resolve(p.dirname(process.argv[1]), process.argv[2]));' "$link_path" "$raw_target")"
+    if [[ "$resolved_target" == "$canonical_real/"* || "$resolved_target" == "$local_real/"* ]]; then
       ln -sfn "$skill_path" "$link_path"
+    else
+      echo "[mosaic-skills] Preserve foreign runtime symlink: $link_path"
+    fi
     return
   fi
 
@@ -234,14 +242,10 @@ prune_stale_links_in_target() {
       continue
     fi
 
-    resolved="$(readlink -f "$link_path" 2>/dev/null || true)"
-    if [[ -z "$resolved" ]]; then
-      rm -f "$link_path"
-      echo "[mosaic-skills] Removed stale broken skill link: $link_path"
-      continue
-    fi
-
-    if [[ "$resolved" == "$MOSAIC_HOME/"* ]]; then
+    # -m resolves lexical dangling targets too. If resolution fails, ownership
+    # is unproven and the link must be preserved.
+    resolved="$(readlink -m "$link_path" 2>/dev/null || true)"
+    if [[ -n "$resolved" && "$resolved" == "$canonical_real/"* ]]; then
       rm -f "$link_path"
       echo "[mosaic-skills] Removed stale retired skill link: $link_path"
     fi

packages/mosaic/framework/tools/_scripts/mosaic-sync-skills.ps1

@@ -79,9 +79,26 @@ function Link-SkillIntoTarget {
 
     $linkPath = Join-Path $TargetDir $name
 
-    # Already a junction/symlink — recreate
+    # Recreate only Mosaic-owned junctions/symlinks. Foreign reparse points are
+    # runtime-owned and must never be clobbered by install/upgrade auto-sync.
     $existing = Get-Item $linkPath -Force -ErrorAction SilentlyContinue
     if ($existing -and ($existing.Attributes -band [System.IO.FileAttributes]::ReparsePoint)) {
+        $rawTarget = @($existing.Target)[0]
+        $candidate = if ([System.IO.Path]::IsPathRooted($rawTarget)) {
+            $rawTarget
+        }
+        else {
+            Join-Path (Split-Path $linkPath -Parent) $rawTarget
+        }
+        $resolvedTarget = [System.IO.Path]::GetFullPath($candidate)
+        $canonicalRoot = [System.IO.Path]::GetFullPath($MosaicSkillsDir).TrimEnd('\') + '\'
+        $localRoot = [System.IO.Path]::GetFullPath($MosaicLocalSkillsDir).TrimEnd('\') + '\'
+        $owned = $resolvedTarget.StartsWith($canonicalRoot, [System.StringComparison]::OrdinalIgnoreCase) -or
+            $resolvedTarget.StartsWith($localRoot, [System.StringComparison]::OrdinalIgnoreCase)
+        if (-not $owned) {
+            Write-Host "[mosaic-skills] Preserve foreign runtime symlink: $linkPath"
+            return
+        }
         Remove-Item $linkPath -Force
     }
     elseif ($existing) {

packages/mosaic/framework/tools/codex/README.md

@@ -70,6 +70,8 @@ Security vulnerability review focusing on:
 ~/.config/mosaic/tools/codex/codex-security-review.sh -n 42
 ```
 
+PR mode resolves the provider's PR diff rather than relying on the caller's checked-out branch. On Gitea, it fetches the base and `refs/pull/<number>/head` refs and diffs those explicit refs. If the refs cannot be fetched or the resulting diff is empty, the command exits nonzero before Codex runs or a review is posted.
+
 ### Review Against Base Branch
 
 ```bash
@@ -253,7 +255,7 @@ Run the script from inside a git repository.
 
 ### "No changes found to review"
 
-The specified mode (--uncommitted, --base, etc.) found no changes to review.
+The specified non-PR mode (`--uncommitted`, `--base`, etc.) found no changes to review. PR mode instead fails closed with an actionable error when it cannot construct a non-empty provider diff; verify the PR number, remote, provider login, and ref access before retrying.
 
 ### "Codex produced no output"
 

packages/mosaic/framework/tools/codex/common.sh

@@ -44,38 +44,47 @@ build_diff_context() {
             diff_text=$(git show "$value" 2>/dev/null)
             ;;
         pr)
-            # For PRs, we need to fetch the PR diff
-            detect_platform
+            # Provider detection writes its result to stdout; suppress it so it cannot
+            # be mistaken for diff content when this function is used in a substitution.
+            detect_platform >/dev/null
             if [[ "$PLATFORM" == "github" ]]; then
-                diff_text=$(gh pr diff "$value" 2>/dev/null)
+                diff_text=$(gh pr diff "$value" 2>/dev/null) || {
+                    echo "Error: Failed to fetch the diff for PR #${value}." >&2
+                    return 1
+                }
             elif [[ "$PLATFORM" == "gitea" ]]; then
-                # tea doesn't have a direct pr diff command, use git
-                local pr_base
-                pr_base=$(tea pr list --fields index,base --output simple 2>/dev/null | grep "^${value}" | awk '{print $2}')
-                if [[ -n "$pr_base" ]]; then
-                    diff_text=$(git diff "${pr_base}...HEAD" 2>/dev/null)
-                else
-                    # Fallback: fetch PR info via API
-                    local repo_info
-                    repo_info=$(get_repo_info)
-                    local remote_url
-                    remote_url=$(git remote get-url origin 2>/dev/null)
-                    local host
-                    host=$(echo "$remote_url" | sed -E 's|.*://([^/]+).*|\1|; s|.*@([^:]+).*|\1|')
-                    diff_text=$(curl -s "https://${host}/api/v1/repos/${repo_info}/pulls/${value}" \
-                        -H "Authorization: token $(tea login list --output simple 2>/dev/null | head -1 | awk '{print $2}')" \
-                        2>/dev/null | jq -r '.diff_url // empty')
-                    if [[ -n "$diff_text" && "$diff_text" != "null" ]]; then
-                        diff_text=$(curl -s "$diff_text" 2>/dev/null)
-                    else
-                        diff_text=$(git diff "main...HEAD" 2>/dev/null)
+                local pr_base base_ref pr_head_ref
+                pr_base=$(tea pr list --fields index,base --output simple 2>/dev/null | awk -v pr="$value" '$1 == pr { print $2; exit }')
+                if [[ -z "$pr_base" ]]; then
+                    echo "Error: Could not resolve the base branch for Gitea PR #${value}." >&2
+                    return 1
                 fi
+
+                base_ref="refs/remotes/origin/${pr_base}"
+                pr_head_ref="refs/remotes/origin/pr/${value}/head"
+                if ! git fetch --quiet origin \
+                    "+refs/heads/${pr_base}:${base_ref}" \
+                    "+refs/pull/${value}/head:${pr_head_ref}"; then
+                    echo "Error: Failed to fetch the base and head refs for Gitea PR #${value}." >&2
+                    return 1
                 fi
+                diff_text=$(git diff "${base_ref}...${pr_head_ref}") || {
+                    echo "Error: Failed to diff the fetched refs for Gitea PR #${value}." >&2
+                    return 1
+                }
+            else
+                echo "Error: Unsupported git platform while resolving PR #${value}." >&2
+                return 1
             fi
             ;;
     esac
 
-    echo "$diff_text"
+    if [[ "$mode" == "pr" && -z "${diff_text//[[:space:]]/}" ]]; then
+        echo "Error: Unable to construct a non-empty diff for PR #${value}; verify the PR refs and provider access." >&2
+        return 1
+    fi
+
+    printf '%s\n' "$diff_text"
 }
 
 # Format JSON findings as markdown for PR comments

packages/mosaic/framework/tools/codex/test-pr-diff-context.sh

@@ -0,0 +1,158 @@
+#!/bin/bash
+# Hermetic regression coverage for Gitea PR diff construction and fail-closed reviews.
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+TMP_DIR=$(mktemp -d)
+trap 'rm -rf "$TMP_DIR"' EXIT
+
+fail() {
+    echo "not ok - $*" >&2
+    exit 1
+}
+
+assert_contains() {
+    local haystack="$1" needle="$2"
+    if [[ "$haystack" != *"$needle"* ]]; then
+        printf 'actual output:\n%s\n' "$haystack" >&2
+        fail "expected output to contain: $needle"
+    fi
+}
+
+# Prevent CI-provided repository context from leaking into the fixture repositories.
+unset GIT_DIR GIT_WORK_TREE GIT_INDEX_FILE GIT_OBJECT_DIRECTORY \
+    GIT_ALTERNATE_OBJECT_DIRECTORIES GIT_COMMON_DIR
+export GIT_AUTHOR_NAME="Codex Fixture"
+export GIT_AUTHOR_EMAIL="codex-fixture@example.test"
+export GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"
+export GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"
+export GITEA_LOGIN="fixture"
+export GITEA_TOKEN="fixture-token"
+export GITEA_URL="file://$TMP_DIR"
+
+create_pr_fixture() {
+    local fixture_root="$1" head_mode="$2"
+    local origin="$fixture_root/origin.git"
+    local seed="$fixture_root/seed"
+    local work="$fixture_root/work"
+    local base_sha head_sha
+
+    mkdir -p "$fixture_root"
+    git init --quiet --bare "$origin"
+    git init --quiet --initial-branch=release/next "$seed"
+    printf 'base\n' > "$seed/pr-change.ts"
+    git -C "$seed" add pr-change.ts
+    git -C "$seed" commit --quiet -m "fixture base"
+    base_sha=$(git -C "$seed" rev-parse HEAD)
+    git -C "$seed" remote add origin "$origin"
+    git -C "$seed" push --quiet origin release/next
+    git --git-dir="$origin" symbolic-ref HEAD refs/heads/release/next
+
+    if [[ "$head_mode" == "changed" ]]; then
+        git -C "$seed" switch --quiet -c feature/pr-795
+        printf 'actual-pr-change\n' > "$seed/pr-change.ts"
+        git -C "$seed" commit --quiet -am "fixture PR head"
+        head_sha=$(git -C "$seed" rev-parse HEAD)
+        git -C "$seed" push --quiet origin HEAD:refs/pull/795/head
+    else
+        head_sha="$base_sha"
+        git --git-dir="$origin" update-ref refs/pull/795/head "$head_sha"
+    fi
+
+    # Gitea's provider-owned PR head ref now exists in the local bare origin.
+    git clone --quiet "$origin" "$work"
+    printf '%s\n' "$work"
+}
+
+FAKE_BIN="$TMP_DIR/bin"
+mkdir -p "$FAKE_BIN"
+cat > "$FAKE_BIN/tea" <<'STUB'
+#!/bin/bash
+if [[ "$*" == "pr list --fields index,base --output simple" ]]; then
+    printf '795 release/next\n'
+    exit 0
+fi
+exit 1
+STUB
+cat > "$FAKE_BIN/codex" <<'STUB'
+#!/bin/bash
+printf 'CODEX %s\n' "$*" >> "$CODEX_LOG"
+exit 99
+STUB
+chmod +x "$FAKE_BIN/tea" "$FAKE_BIN/codex"
+export PATH="$FAKE_BIN:$PATH"
+
+# The valid fixture is a fresh clone on the non-main base. The PR head exists only
+# at refs/pull/795/head, so local HEAD cannot accidentally satisfy the assertion.
+if [[ "${1:-all}" != "fail-closed" ]]; then
+    VALID_WORK=$(create_pr_fixture "$TMP_DIR/valid" changed)
+    (
+        cd "$VALID_WORK"
+        # shellcheck source=common.sh
+        source "$SCRIPT_DIR/common.sh"
+        diff_context=$(build_diff_context pr 795)
+        assert_contains "$diff_context" "actual-pr-change"
+
+        base_sha=$(git rev-parse refs/remotes/origin/release/next)
+        head_sha=$(git rev-parse refs/remotes/origin/pr/795/head)
+        local_sha=$(git rev-parse HEAD)
+        [[ "$local_sha" == "$base_sha" ]] || fail "fixture clone is not on the PR base"
+        [[ "$head_sha" != "$base_sha" ]] || fail "fixture PR head does not differ from its base"
+        git show-ref --verify --quiet refs/remotes/origin/pr/795/head || \
+            fail "fetched PR head ref is missing"
+        [[ "$(git diff --name-only "${base_sha}...${head_sha}")" == "pr-change.ts" ]] || \
+            fail "explicit PR refs do not contain the fixture change"
+        if git show-ref --verify --quiet refs/heads/main || \
+            git show-ref --verify --quiet refs/remotes/origin/main; then
+            fail "fixture unexpectedly contains a main ref"
+        fi
+    )
+    echo "ok - Gitea PR mode fetches and diffs explicit non-main base and PR head refs"
+fi
+
+# Build an empty PR entirely inside another local repository. Both review wrappers
+# must emit the PR-numbered error before Codex or the stubbed post path can execute.
+if [[ "${1:-all}" != "pr-head" ]]; then
+    EMPTY_WORK=$(create_pr_fixture "$TMP_DIR/empty" empty)
+    SANDBOX="$TMP_DIR/sandbox"
+    mkdir -p "$SANDBOX/tools/codex/schemas" "$SANDBOX/tools/git"
+    cp "$SCRIPT_DIR/common.sh" \
+        "$SCRIPT_DIR/codex-code-review.sh" \
+        "$SCRIPT_DIR/codex-security-review.sh" \
+        "$SANDBOX/tools/codex/"
+    cp "$SCRIPT_DIR/schemas/code-review-schema.json" \
+        "$SCRIPT_DIR/schemas/security-review-schema.json" \
+        "$SANDBOX/tools/codex/schemas/"
+    cp "$SCRIPT_DIR/../git/detect-platform.sh" "$SANDBOX/tools/git/"
+
+    cat > "$SANDBOX/tools/git/pr-review.sh" <<'STUB'
+#!/bin/bash
+printf 'POST %s\n' "$*" >> "$POST_LOG"
+STUB
+    chmod +x "$SANDBOX/tools/git/pr-review.sh"
+
+    POST_LOG="$TMP_DIR/post.log"
+    CODEX_LOG="$TMP_DIR/codex.log"
+    export POST_LOG CODEX_LOG
+
+    for review_kind in code security; do
+        : > "$POST_LOG"
+        : > "$CODEX_LOG"
+        review_script="$SANDBOX/tools/codex/codex-${review_kind}-review.sh"
+        set +e
+        (
+            cd "$EMPTY_WORK"
+            "$review_script" -n 795
+        ) >"$TMP_DIR/${review_kind}.stdout" 2>"$TMP_DIR/${review_kind}.stderr"
+        review_status=$?
+        set -e
+
+        stderr_text=$(cat "$TMP_DIR/${review_kind}.stderr")
+        [[ "$review_status" -ne 0 ]] || fail "${review_kind} review returned success for an empty PR diff"
+        [[ ! -s "$CODEX_LOG" ]] || fail "Codex ran for an empty ${review_kind} PR diff"
+        [[ ! -s "$POST_LOG" ]] || fail "${review_kind} review auto-post ran for an empty PR diff"
+        assert_contains "$stderr_text" "Error:"
+        assert_contains "$stderr_text" "PR #795"
+        echo "ok - empty ${review_kind} PR diff fails closed before Codex and auto-post"
+    done
+fi

packages/mosaic/framework/tools/git/README.md

@@ -0,0 +1,9 @@
+# Git provider wrappers
+
+These scripts provide host-aware GitHub and Gitea issue, pull-request, milestone, and CI operations.
+
+## Durable review provenance
+
+A successful provider write command—or a wrapper message based only on that command's exit code—is **not** durable review provenance. Review comments count as durable provenance only after the wrapper reads the created provider record back and verifies that it belongs to the intended repository and pull request and contains the exact submitted body (or verifies the provider-returned record ID).
+
+`pr-review.sh` therefore fails closed when a Gitea comment cannot be written, its created comment ID cannot be identified, or provider read-back does not match. It reports comment success only after that read-back verification passes.

packages/mosaic/framework/tools/git/detect-platform.sh

@@ -81,7 +81,32 @@ get_repo_slug() {
 gitea_url_matches_host() {
     local url="${1:-}" host="${2:-}"
     [[ -n "$url" && -n "$host" ]] || return 1
-    [[ "${url%/}" == "https://$host" || "${url%/}" == "http://$host" || "${url%/}" == *"//$host" ]]
+    python3 - "$url" "$host" <<'PY'
+import sys
+from urllib.parse import urlparse
+
+url, remote_host = sys.argv[1:]
+configured = urlparse(url)
+remote = urlparse(f"//{remote_host}")
+if configured.scheme not in {"http", "https"} or configured.hostname != remote.hostname:
+    raise SystemExit(1)
+
+# Normalize by scheme: an implicit (portless) HTTP(S) URL and its explicit
+# default-port form (":80" for http, ":443" for https) name the same
+# provider endpoint. Apply that equivalence symmetrically -- whichever side
+# omits the port is treated as carrying the scheme's default port -- so
+# "configured implicit vs. remote explicit" and "configured explicit vs.
+# remote implicit" both match. (The remote side here is always an HTTP(S)
+# authority; an SSH remote's transport port is stripped by get_remote_host
+# before reaching this comparison, since it identifies an unrelated
+# service on the same host, not the HTTP(S) provider port.)
+default_port = 80 if configured.scheme == "http" else 443
+normalized_configured = configured.port if configured.port is not None else default_port
+normalized_remote = remote.port if remote.port is not None else default_port
+if normalized_configured != normalized_remote:
+    raise SystemExit(1)
+raise SystemExit(0)
+PY
 }
 
 get_gitea_service_for_host() {
@@ -347,6 +372,47 @@ get_gitea_api_host_for_repo_override() {
     get_host_from_url "${GITEA_URL:-}"
 }
 
+# Resolve owner/repo relative to a configured Gitea base URL. HTTP(S) clone
+# URLs can include the deployment prefix (for example /gitea/owner/repo.git),
+# but Gitea's /repos API expects only owner/repo. Root-mounted and SSH clone
+# forms retain their existing owner/repo behavior.
+get_gitea_repo_slug_for_url() {
+    local configured_url="$1" remote_url
+    remote_url=$(git remote get-url origin 2>/dev/null) || return 1
+
+    if [[ "$remote_url" =~ ^https?:// ]]; then
+        python3 - "$remote_url" "$configured_url" <<'PY'
+import sys
+from urllib.parse import urlparse
+
+remote = urlparse(sys.argv[1])
+base = urlparse(sys.argv[2])
+remote_path = remote.path.strip("/")
+if remote_path.endswith(".git"):
+    remote_path = remote_path[:-4]
+base_path = base.path.strip("/")
+remote_parts = [part for part in remote_path.split("/") if part]
+base_parts = [part for part in base_path.split("/") if part]
+
+if base_parts and remote_parts[:len(base_parts)] == base_parts:
+    repo_parts = remote_parts[len(base_parts):]
+elif len(remote_parts) == 2:
+    # Preserve a root-shaped clone URL when provider API configuration carries
+    # a reverse-proxy prefix separately.
+    repo_parts = remote_parts
+else:
+    raise SystemExit(1)
+
+if len(repo_parts) != 2:
+    raise SystemExit(1)
+print("/".join(repo_parts))
+PY
+        return
+    fi
+
+    get_repo_slug
+}
+
 get_gitea_repo_args() {
     local repo host login
     repo=$(get_repo_slug) || return 1
@@ -370,6 +436,15 @@ get_remote_host() {
         echo "${host##*@}"
         return 0
     fi
+    if [[ "$remote_url" =~ ^ssh://([^/]+)/ ]]; then
+        local host="${BASH_REMATCH[1]}"
+        host="${host##*@}"
+        # Strip an SSH transport port (e.g. "git.example:2222"): it names the
+        # SSH daemon port, not the HTTP(S) provider API port, and must not
+        # feed gitea_url_matches_host's port comparison (#850).
+        echo "${host%%:*}"
+        return 0
+    fi
     if [[ "$remote_url" =~ ^git@([^:]+): ]]; then
         echo "${BASH_REMATCH[1]}"
         return 0
@@ -377,6 +452,51 @@ get_remote_host() {
     return 1
 }
 
+# Resolve the configured Gitea base URL for a host from the same credential
+# source used by get_gitea_token. The scheme and any deployment path prefix are
+# provider configuration and must not be reconstructed from the git remote.
+get_gitea_url_for_host() {
+    local host="$1" script_dir cred_loader url
+    script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+    cred_loader="$script_dir/../_lib/credentials.sh"
+
+    if [[ -f "$cred_loader" ]]; then
+        url=$(
+            # shellcheck source=/dev/null
+            source "$cred_loader"
+            unset GITEA_TOKEN GITEA_URL
+            case "$host" in
+                git.mosaicstack.dev) load_credentials gitea-mosaicstack 2>/dev/null ;;
+                git.uscllc.com)      load_credentials gitea-usc 2>/dev/null ;;
+                *)
+                    for svc in gitea-mosaicstack gitea-usc; do
+                        unset GITEA_TOKEN GITEA_URL
+                        load_credentials "$svc" 2>/dev/null || continue
+                        if gitea_url_matches_host "${GITEA_URL:-}" "$host"; then
+                            break
+                        fi
+                        unset GITEA_TOKEN GITEA_URL
+                    done
+                    ;;
+            esac
+            if gitea_url_matches_host "${GITEA_URL:-}" "$host"; then
+                printf '%s' "${GITEA_URL%/}"
+            fi
+        )
+        if [[ -n "$url" ]]; then
+            printf '%s\n' "$url"
+            return 0
+        fi
+    fi
+
+    if gitea_url_matches_host "${GITEA_URL:-}" "$host"; then
+        printf '%s\n' "${GITEA_URL%/}"
+        return 0
+    fi
+
+    return 1
+}
+
 # Resolve a Gitea API token for the given host.
 # Priority: Mosaic credential loader → GITEA_TOKEN env → ~/.git-credentials
 get_gitea_token() {
@@ -403,7 +523,7 @@ get_gitea_token() {
                     for svc in gitea-mosaicstack gitea-usc; do
                         unset GITEA_TOKEN GITEA_URL
                         load_credentials "$svc" 2>/dev/null || continue
-                        if [[ "${GITEA_URL:-}" == "https://$host" || "${GITEA_URL:-}" == "http://$host" || "${GITEA_URL:-}" == *"//$host" ]]; then
+                        if gitea_url_matches_host "${GITEA_URL:-}" "$host"; then
                             matched=true
                             break
                         fi
@@ -423,7 +543,7 @@ get_gitea_token() {
 
     # 2. GITEA_TOKEN env var (only when GITEA_URL, if present, matches the remote host)
     if [[ -n "${GITEA_TOKEN:-}" ]]; then
-        if [[ -z "${GITEA_URL:-}" || "${GITEA_URL:-}" == "https://$host" || "${GITEA_URL:-}" == "http://$host" || "${GITEA_URL:-}" == *"//$host" ]]; then
+        if [[ -z "${GITEA_URL:-}" ]] || gitea_url_matches_host "$GITEA_URL" "$host"; then
             echo "$GITEA_TOKEN"
             return 0
         fi

packages/mosaic/framework/tools/git/pr-review.sh

@@ -5,6 +5,7 @@
 set -e
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck source=packages/mosaic/framework/tools/git/detect-platform.sh
 source "$SCRIPT_DIR/detect-platform.sh"
 
 # Parse arguments
@@ -55,6 +56,125 @@ fi
 
 detect_platform >/dev/null
 
+# Post a review comment body to a Gitea PR via the supported comments REST API
+# and verify it durably via provider read-back (see docs on durable review
+# provenance in README.md). Used by the `comment` action and, since `tea`
+# v0.11.1 defines no `--comment`/`-comment` flag on `pr approve`/`pr reject`,
+# also by the `approve` and `request-changes` actions to carry an optional
+# review body that `tea` itself cannot attach.
+#
+# Args: $1 = PR number, $2 = comment body
+# On success: prints only the created comment ID to stdout, returns 0.
+# On failure: prints an error to stderr, returns 1.
+gitea_post_verified_comment() {
+    local pr_number="$1" comment_body="$2"
+    local host token configured_url repo api_base payload
+    local write_response_file readback_response_file comment_id
+
+    host=$(get_remote_host)
+    token=$(get_gitea_token "$host") || {
+        echo "Error: Gitea token not found for comment persistence" >&2
+        return 1
+    }
+    configured_url=$(get_gitea_url_for_host "$host") || {
+        echo "Error: Configured Gitea URL not found for comment persistence" >&2
+        return 1
+    }
+    repo=$(get_gitea_repo_slug_for_url "$configured_url") || {
+        echo "Error: Could not resolve Gitea owner/repository relative to configured URL" >&2
+        return 1
+    }
+    api_base="${configured_url%/}/api/v1/repos/$repo"
+    payload=$(COMMENT_BODY="$comment_body" python3 -c '
+import json
+import os
+
+print(json.dumps({"body": os.environ["COMMENT_BODY"]}))
+')
+    write_response_file=$(mktemp "${TMPDIR:-/tmp}/mosaic-pr-review-write.XXXXXX")
+    readback_response_file=$(mktemp "${TMPDIR:-/tmp}/mosaic-pr-review-readback.XXXXXX")
+    trap 'rm -f "$write_response_file" "$readback_response_file"' RETURN
+
+    if ! write_status=$(curl -sS -o "$write_response_file" -w '%{http_code}' \
+        -X POST \
+        -H "Authorization: token $token" \
+        -H 'Content-Type: application/json' \
+        -d "$payload" \
+        "$api_base/issues/$pr_number/comments"); then
+        echo "Error: Gitea comment write transport failed" >&2
+        return 1
+    fi
+    if [[ "$write_status" != "201" ]]; then
+        echo "Error: Gitea comment write failed with HTTP $write_status" >&2
+        return 1
+    fi
+
+    comment_id=$(python3 - "$write_response_file" <<'PY'
+import json
+import sys
+
+try:
+    with open(sys.argv[1], encoding="utf-8") as response:
+        comment = json.load(response)
+    comment_id = comment.get("id") if isinstance(comment, dict) else None
+    if not isinstance(comment_id, int) or comment_id <= 0:
+        raise ValueError("missing positive comment id")
+except (OSError, json.JSONDecodeError, ValueError) as error:
+    print(f"Error: could not identify created Gitea comment: {error}", file=sys.stderr)
+    raise SystemExit(1)
+print(comment_id)
+PY
+) || return 1
+
+    if ! readback_status=$(curl -sS -o "$readback_response_file" -w '%{http_code}' \
+        -H "Authorization: token $token" \
+        "$api_base/issues/comments/$comment_id"); then
+        echo "Error: Gitea comment read-back transport failed" >&2
+        return 1
+    fi
+    if [[ "$readback_status" != "200" ]]; then
+        echo "Error: Gitea comment read-back failed with HTTP $readback_status" >&2
+        return 1
+    fi
+
+    if EXPECTED_COMMENT_ID="$comment_id" EXPECTED_COMMENT_BODY="$comment_body" EXPECTED_REPO="$repo" EXPECTED_PR_NUMBER="$pr_number" \
+        python3 - "$readback_response_file" <<'PY'
+import json
+import os
+import sys
+from urllib.parse import urlparse
+
+try:
+    with open(sys.argv[1], encoding="utf-8") as response:
+        comment = json.load(response)
+    if not isinstance(comment, dict):
+        raise ValueError("response is not a comment object")
+    expected_id = int(os.environ["EXPECTED_COMMENT_ID"])
+    expected_body = os.environ["EXPECTED_COMMENT_BODY"]
+    expected_repo = os.environ["EXPECTED_REPO"]
+    expected_pr = os.environ["EXPECTED_PR_NUMBER"]
+    issue_path = urlparse(comment.get("issue_url", "")).path.rstrip("/")
+    expected_suffix = f"/repos/{expected_repo}/issues/{expected_pr}"
+    if comment.get("id") != expected_id:
+        raise ValueError("comment id mismatch")
+    if comment.get("body") != expected_body:
+        raise ValueError("comment body mismatch")
+    if not issue_path.endswith(expected_suffix):
+        raise ValueError("repository or PR mismatch")
+except (OSError, json.JSONDecodeError, KeyError, TypeError, ValueError) as error:
+    print(f"Error: Gitea comment persistence verification failed: {error}", file=sys.stderr)
+    raise SystemExit(1)
+PY
+    then
+        true
+    else
+        return 1
+    fi
+
+    echo "$comment_id"
+    return 0
+}
+
 if [[ "$PLATFORM" == "github" ]]; then
     case $ACTION in
         approve)
@@ -85,24 +205,41 @@ if [[ "$PLATFORM" == "github" ]]; then
 elif [[ "$PLATFORM" == "gitea" ]]; then
     case $ACTION in
         approve)
-            tea pr approve "$PR_NUMBER" $(get_gitea_repo_args) ${COMMENT:+--comment "$COMMENT"}
+            repo=$(get_repo_slug)
+            host=$(get_remote_host)
+            login=$(get_gitea_login_for_host "$host")
+            # tea v0.11.1 defines no --comment/-comment flag on `pr approve`;
+            # route any review body via the durable comment API instead (#835).
+            tea pr approve "$PR_NUMBER" --repo "$repo" --login "$login"
             echo "Approved Gitea PR #$PR_NUMBER"
+            if [[ -n "$COMMENT" ]]; then
+                comment_id=$(gitea_post_verified_comment "$PR_NUMBER" "$COMMENT") || exit 1
+                echo "Added and verified review comment on Gitea PR #$PR_NUMBER (comment ID $comment_id)"
+            fi
             ;;
         request-changes)
             if [[ -z "$COMMENT" ]]; then
                 echo "Error: Comment required for request-changes"
                 exit 1
             fi
-            tea pr reject "$PR_NUMBER" $(get_gitea_repo_args) --comment "$COMMENT"
+            repo=$(get_repo_slug)
+            host=$(get_remote_host)
+            login=$(get_gitea_login_for_host "$host")
+            # tea v0.11.1 defines no --comment/-comment flag on `pr reject`;
+            # route the review body via the durable comment API instead (#835).
+            tea pr reject "$PR_NUMBER" --repo "$repo" --login "$login"
             echo "Requested changes on Gitea PR #$PR_NUMBER"
+            comment_id=$(gitea_post_verified_comment "$PR_NUMBER" "$COMMENT") || exit 1
+            echo "Added and verified review comment on Gitea PR #$PR_NUMBER (comment ID $comment_id)"
             ;;
         comment)
             if [[ -z "$COMMENT" ]]; then
                 echo "Error: Comment required"
                 exit 1
             fi
-            tea pr comment "$PR_NUMBER" "$COMMENT" $(get_gitea_repo_args)
-            echo "Added comment to Gitea PR #$PR_NUMBER"
+
+            comment_id=$(gitea_post_verified_comment "$PR_NUMBER" "$COMMENT") || exit 1
+            echo "Added and verified comment on Gitea PR #$PR_NUMBER (comment ID $comment_id)"
             ;;
         *)
             echo "Error: Unknown action: $ACTION"

packages/mosaic/framework/tools/git/test-pr-review-gitea-comment.sh

@@ -0,0 +1,328 @@
+#!/usr/bin/env bash
+# Regression harness for durable Gitea PR review comments (#812) and for the
+# approve/reject `--comment` flag removal (#835). The `tea` stub below rejects
+# any `-comment`/`--comment` flag on `pr approve`/`pr reject` exactly like real
+# `tea` v0.11.1 does ("flag provided but not defined: -comment"), so this
+# harness fails RED against the pre-#835 wrapper (which passed that flag) and
+# only passes once the wrapper routes the review body through the durable
+# comment REST API instead.
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+WORK_DIR="${MOSAIC_TEST_WORK_DIR:-$PWD/.mosaic-test-work/pr-review-gitea-comment}"
+REPO_DIR="$WORK_DIR/repo"
+BIN_DIR="$WORK_DIR/bin"
+TEA_LOG="$WORK_DIR/tea.log"
+CURL_LOG="$WORK_DIR/curl.log"
+OUTPUT_FILE="$WORK_DIR/output.log"
+CREDENTIALS_FILE="$WORK_DIR/credentials.json"
+
+cleanup() {
+    rm -rf "$WORK_DIR"
+}
+trap cleanup EXIT
+
+mkdir -p "$REPO_DIR" "$BIN_DIR"
+git -C "$REPO_DIR" init -q
+git -C "$REPO_DIR" remote add origin https://git.mosaicstack.dev/mosaicstack/stack.git
+
+write_credentials() {
+    local configured_url="$1"
+    CONFIGURED_GITEA_URL="$configured_url" python3 - "$CREDENTIALS_FILE" <<'PY'
+import json
+import os
+import sys
+
+with open(sys.argv[1], "w", encoding="utf-8") as credentials:
+    json.dump({
+        "gitea": {
+            "mosaicstack": {
+                "url": os.environ["CONFIGURED_GITEA_URL"],
+                "token": "test-only-placeholder",
+            }
+        }
+    }, credentials)
+PY
+}
+
+cat > "$BIN_DIR/tea" <<'SH'
+#!/usr/bin/env bash
+set -euo pipefail
+
+printf '%s\n' "$*" >> "$PR_REVIEW_TEA_LOG"
+
+if [[ "$*" == "login list --output json" ]]; then
+    printf '%s\n' '[{"name":"mosaicstack","url":"https://git.mosaicstack.dev"}]'
+    exit 0
+fi
+
+# tea v0.11.1 defines no --comment/-comment flag on `pr approve` or `pr
+# reject`; it fails closed with this exact message and a nonzero exit. Any
+# regression that reintroduces the flag on those subcommands must hit this
+# branch and fail RED (#835).
+if [[ "$*" == *" -comment "* || "$*" == *" --comment "* || "$*" == *" -comment" || "$*" == *" --comment" ]]; then
+    echo "flag provided but not defined: -comment" >&2
+    exit 1
+fi
+
+case "${PR_REVIEW_TEST_MODE:-}" in
+    approve)
+        [[ "$*" == "pr approve 123 --repo mosaicstack/stack --login mosaicstack" ]] || exit 90
+        ;;
+    request-changes)
+        [[ "$*" == "pr reject 123 --repo mosaicstack/stack --login mosaicstack" ]] || exit 91
+        ;;
+    legacy-fallback|comment-success|http-success|prefix-success|subpath-success|port-success|scp-ssh-success|url-ssh-success|ssh-transport-port-success|explicit-default-port-success|write-transport-failure|write-http-failure|readback-failure)
+        if [[ "$*" == pr\ comment* ]]; then
+            # tea v0.11.1 treats the nonexistent subcommand as `tea pr list` and exits 0.
+            printf '%s\n' 'INDEX TITLE STATE'
+            exit 0
+        fi
+        echo "Unexpected tea command: $*" >&2
+        exit 92
+        ;;
+    *)
+        exit 95
+        ;;
+esac
+SH
+chmod +x "$BIN_DIR/tea"
+
+cat > "$BIN_DIR/curl" <<'SH'
+#!/usr/bin/env bash
+set -euo pipefail
+
+output_file=""
+method="GET"
+payload=""
+url=""
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        -o)
+            output_file="$2"
+            shift 2
+            ;;
+        -w|-H)
+            shift 2
+            ;;
+        -X)
+            method="$2"
+            shift 2
+            ;;
+        -d|--data)
+            payload="$2"
+            shift 2
+            ;;
+        -s|-S|-sS)
+            shift
+            ;;
+        http://*|https://*)
+            url="$1"
+            shift
+            ;;
+        *)
+            shift
+            ;;
+    esac
+done
+
+printf '%s %s\n' "$method" "$url" >> "$PR_REVIEW_CURL_LOG"
+
+write_response() {
+    local status="$1" body="$2"
+    [[ -n "$output_file" ]] || exit 96
+    printf '%s' "$body" > "$output_file"
+    printf '%s' "$status"
+}
+
+case "${PR_REVIEW_TEST_MODE:-}" in
+    legacy-fallback|write-transport-failure)
+        echo "simulated transport failure" >&2
+        exit 7
+        ;;
+    write-http-failure)
+        write_response 500 '{"message":"simulated rejection"}'
+        ;;
+    approve|request-changes|comment-success|http-success|prefix-success|subpath-success|port-success|scp-ssh-success|url-ssh-success|ssh-transport-port-success|explicit-default-port-success|readback-failure)
+        if [[ "$method" == "POST" && "$url" == "$PR_REVIEW_EXPECTED_API_BASE/issues/123/comments" ]]; then
+            PR_REVIEW_PAYLOAD="$payload" python3 - <<'PY'
+import json
+import os
+
+assert json.loads(os.environ["PR_REVIEW_PAYLOAD"]) == {"body": os.environ["PR_REVIEW_EXPECTED_BODY"]}
+PY
+            response=$(python3 - <<'PY'
+import json
+import os
+
+print(json.dumps({"id": 456, "body": os.environ["PR_REVIEW_EXPECTED_BODY"]}))
+PY
+)
+            write_response 201 "$response"
+        elif [[ "$method" == "GET" && "$url" == "$PR_REVIEW_EXPECTED_API_BASE/issues/comments/456" ]]; then
+            if [[ "$PR_REVIEW_TEST_MODE" == "readback-failure" ]]; then
+                body="different-body"
+            else
+                body="$PR_REVIEW_EXPECTED_BODY"
+            fi
+            response=$(PR_REVIEW_BODY="$body" python3 - <<'PY'
+import json
+import os
+
+print(json.dumps({
+    "id": 456,
+    "body": os.environ["PR_REVIEW_BODY"],
+    "issue_url": os.environ["PR_REVIEW_EXPECTED_API_BASE"] + "/issues/123",
+}))
+PY
+)
+            write_response 200 "$response"
+        else
+            echo "Unexpected curl request: $method $url" >&2
+            exit 97
+        fi
+        ;;
+    *)
+        exit 98
+        ;;
+esac
+SH
+chmod +x "$BIN_DIR/curl"
+
+run_review() {
+    local mode="$1" action="$2" comment="${3:-}"
+    local configured_url="${4:-https://git.mosaicstack.dev}"
+    local remote_url="${5:-https://git.mosaicstack.dev/mosaicstack/stack.git}"
+    local expected_repo="${6:-mosaicstack/stack}"
+    local expected_api_base="${configured_url%/}/api/v1/repos/$expected_repo"
+    git -C "$REPO_DIR" remote set-url origin "$remote_url"
+    write_credentials "$configured_url"
+    : > "$TEA_LOG"
+    : > "$CURL_LOG"
+    : > "$OUTPUT_FILE"
+    (
+        cd "$REPO_DIR"
+        PATH="$BIN_DIR:$PATH" \
+        MOSAIC_CREDENTIALS_FILE="$CREDENTIALS_FILE" \
+        PR_REVIEW_TEA_LOG="$TEA_LOG" \
+        PR_REVIEW_CURL_LOG="$CURL_LOG" \
+        PR_REVIEW_TEST_MODE="$mode" \
+        PR_REVIEW_EXPECTED_BODY="$comment" \
+        PR_REVIEW_EXPECTED_API_BASE="$expected_api_base" \
+        "$SCRIPT_DIR/pr-review.sh" -n 123 -a "$action" ${comment:+-c "$comment"}
+    ) > "$OUTPUT_FILE" 2>&1
+}
+
+run_review approve approve
+grep -q '^pr approve 123 --repo mosaicstack/stack --login mosaicstack$' "$TEA_LOG"
+grep -q 'Approved Gitea PR #123' "$OUTPUT_FILE"
+if grep -q 'comment' "$TEA_LOG"; then
+    echo "Plain approve (no review body) unexpectedly touched comment persistence" >&2
+    exit 1
+fi
+
+# #835: tea v0.11.1 defines no --comment/-comment flag on `pr approve`. A
+# review body supplied alongside approve must be routed through the durable
+# comment REST API instead of being passed to `tea` directly.
+run_review approve approve approve-note
+grep -q '^pr approve 123 --repo mosaicstack/stack --login mosaicstack$' "$TEA_LOG"
+grep -q 'Approved Gitea PR #123' "$OUTPUT_FILE"
+grep -q '^POST https://git.mosaicstack.dev/api/v1/repos/mosaicstack/stack/issues/123/comments$' "$CURL_LOG"
+grep -q '^GET https://git.mosaicstack.dev/api/v1/repos/mosaicstack/stack/issues/comments/456$' "$CURL_LOG"
+grep -q 'Added and verified review comment on Gitea PR #123 (comment ID 456)' "$OUTPUT_FILE"
+
+# #835: same for `pr reject` (request-changes), where a comment is required.
+run_review request-changes request-changes changes-required
+grep -q '^pr reject 123 --repo mosaicstack/stack --login mosaicstack$' "$TEA_LOG"
+grep -q 'Requested changes on Gitea PR #123' "$OUTPUT_FILE"
+grep -q '^POST https://git.mosaicstack.dev/api/v1/repos/mosaicstack/stack/issues/123/comments$' "$CURL_LOG"
+grep -q '^GET https://git.mosaicstack.dev/api/v1/repos/mosaicstack/stack/issues/comments/456$' "$CURL_LOG"
+grep -q 'Added and verified review comment on Gitea PR #123 (comment ID 456)' "$OUTPUT_FILE"
+
+if run_review legacy-fallback comment durable-body; then
+    echo "The old nonexistent tea pr comment fallback returned success" >&2
+    cat "$OUTPUT_FILE" >&2
+    exit 1
+fi
+if grep -q '^pr comment ' "$TEA_LOG"; then
+    echo "Wrapper invoked unsupported tea pr comment" >&2
+    exit 1
+fi
+if grep -q 'Added comment to Gitea PR' "$OUTPUT_FILE"; then
+    echo "Wrapper reported success without durable persistence" >&2
+    exit 1
+fi
+
+complex_body=$'durable "body"\n-- marker'
+run_review comment-success comment "$complex_body"
+grep -q '^POST https://git.mosaicstack.dev/api/v1/repos/mosaicstack/stack/issues/123/comments$' "$CURL_LOG"
+grep -q '^GET https://git.mosaicstack.dev/api/v1/repos/mosaicstack/stack/issues/comments/456$' "$CURL_LOG"
+grep -q 'Added and verified comment on Gitea PR #123' "$OUTPUT_FILE"
+if [[ -s "$TEA_LOG" ]]; then
+    echo "REST comment path unexpectedly invoked tea" >&2
+    cat "$TEA_LOG" >&2
+    exit 1
+fi
+
+run_review http-success comment durable-body http://git.mosaicstack.dev
+grep -q '^POST http://git.mosaicstack.dev/api/v1/repos/mosaicstack/stack/issues/123/comments$' "$CURL_LOG"
+grep -q '^GET http://git.mosaicstack.dev/api/v1/repos/mosaicstack/stack/issues/comments/456$' "$CURL_LOG"
+
+run_review prefix-success comment durable-body https://git.mosaicstack.dev/gitea/
+grep -q '^POST https://git.mosaicstack.dev/gitea/api/v1/repos/mosaicstack/stack/issues/123/comments$' "$CURL_LOG"
+grep -q '^GET https://git.mosaicstack.dev/gitea/api/v1/repos/mosaicstack/stack/issues/comments/456$' "$CURL_LOG"
+
+run_review subpath-success comment durable-body https://git.example/gitea https://git.example/gitea/owner/repo.git owner/repo
+grep -q '^POST https://git.example/gitea/api/v1/repos/owner/repo/issues/123/comments$' "$CURL_LOG"
+grep -q '^GET https://git.example/gitea/api/v1/repos/owner/repo/issues/comments/456$' "$CURL_LOG"
+if grep -q '/repos/gitea/owner/repo/' "$CURL_LOG"; then
+    echo "Configured Gitea path prefix leaked into the repository slug" >&2
+    exit 1
+fi
+
+run_review port-success comment durable-body http://git.example:3000 http://git.example:3000/owner/repo.git owner/repo
+grep -q '^POST http://git.example:3000/api/v1/repos/owner/repo/issues/123/comments$' "$CURL_LOG"
+grep -q '^GET http://git.example:3000/api/v1/repos/owner/repo/issues/comments/456$' "$CURL_LOG"
+
+run_review scp-ssh-success comment durable-body https://git.example git@git.example:owner/repo.git owner/repo
+grep -q '^POST https://git.example/api/v1/repos/owner/repo/issues/123/comments$' "$CURL_LOG"
+
+run_review url-ssh-success comment durable-body https://git.example ssh://git@git.example/owner/repo.git owner/repo
+grep -q '^POST https://git.example/api/v1/repos/owner/repo/issues/123/comments$' "$CURL_LOG"
+
+# #850 (follow-up to #812): an SSH remote's transport port (e.g. `ssh://
+# git@host:2222/...`) must NOT be compared against the configured HTTP(S) API
+# URL's port -- they identify unrelated properties (SSH daemon port vs. HTTP(S)
+# provider port) of the same Gitea host. Before the fix, host-match required
+# the configured URL to carry the identical port, so this failed closed even
+# though both remote and configured URL name the same host.
+run_review ssh-transport-port-success comment durable-body https://git.example ssh://git@git.example:2222/owner/repo.git owner/repo
+grep -q '^POST https://git.example/api/v1/repos/owner/repo/issues/123/comments$' "$CURL_LOG"
+
+# #850 (follow-up to #812): an explicit default HTTP(S) port on the remote
+# (`https://host:443/...`) must be treated as equal to an implicit
+# (portless) configured URL on BOTH sides -- the pre-fix comparison only
+# normalized the default port when the REMOTE side was portless, so the
+# inverse (explicit remote, implicit configured) form failed closed.
+run_review explicit-default-port-success comment durable-body https://git.example https://git.example:443/owner/repo.git owner/repo
+grep -q '^POST https://git.example/api/v1/repos/owner/repo/issues/123/comments$' "$CURL_LOG"
+
+if run_review write-transport-failure comment durable-body; then
+    echo "Expected provider transport failure to return nonzero" >&2
+    exit 1
+fi
+if run_review write-http-failure comment durable-body; then
+    echo "Expected non-201 provider write to return nonzero" >&2
+    exit 1
+fi
+if run_review readback-failure comment durable-body; then
+    echo "Expected mismatched provider read-back to return nonzero" >&2
+    exit 1
+fi
+if grep -q 'Added and verified comment' "$OUTPUT_FILE"; then
+    echo "Read-back mismatch reported durable success" >&2
+    exit 1
+fi
+
+echo "pr-review.sh durable Gitea comment regression passed"

packages/mosaic/framework/tools/lease-broker/check-runtime-launches.py

@@ -0,0 +1,436 @@
+#!/usr/bin/env python3
+"""Fail CI when production code launches Claude/Pi outside the lease gate."""
+
+from __future__ import annotations
+
+import argparse
+import json
+import re
+import shlex
+import sys
+from pathlib import Path
+from typing import Final, NamedTuple, Sequence
+
+SCANNED_ROOTS: Final = ("packages", "apps", "plugins", "tools")
+SCANNED_SUFFIXES: Final = {
+    ".bash",
+    ".cjs",
+    ".js",
+    ".json",
+    ".mjs",
+    ".py",
+    ".sh",
+    ".ts",
+    ".tsx",
+    ".yaml",
+    ".yml",
+    ".zsh",
+}
+SKIPPED_DIRECTORIES: Final = {
+    ".git",
+    ".next",
+    ".turbo",
+    "coverage",
+    "dist",
+    "node_modules",
+}
+DANGEROUS_PRIMITIVE: Final = "--dangerously-" + "skip-permissions"
+CHOKE_POINT_SUFFIX: Final = "framework/tools/lease-broker/launch-runtime.py"
+SHELL_SUFFIXES: Final = {".bash", ".sh", ".zsh"}
+
+# A launch line is gated only when it CALLS the common wrapper in command
+# position, invokes the TypeScript adapter, or constructs/runs a `mosaic`
+# runtime command. A marker in a comment, string argument, echo, or unrelated
+# variable can never satisfy these invocation-shaped patterns.
+GATED_PATTERNS: Final = (
+    re.compile(r"(?:^\s*|=>\s*)execLeaseGatedRuntime\s*\("),
+    re.compile(
+        r"\bexecRuntime\s*\(\s*[\"']python3[\"']\s*,\s*"
+        r"\[\s*launcher\s*,.*[\"']--runtime[\"']\s*,\s*runtime\s*,\s*[\"']--[\"']"
+    ),
+    re.compile(
+        r"(?:^|[;&|]\s*|\bexec\s+|\b(?:LAUNCH_COMMAND|launch_cmd)\s*=\s*\(?|\becho\s+[\"'])"
+        r"mosaic\s+(?:yolo\s+)?(?:claude|pi|claudex|[\"']?\$\{?runtime\}?[\"']?|[\"']?\$MOSAIC_AGENT_RUNTIME[\"']?)\b"
+    ),
+    re.compile(r"\[\s*[\"']mosaic[\"']\s*,\s*(?:[\"']yolo[\"']\s*,\s*)?(?:runtime|[\"'](?:claude|pi|claudex)[\"'])"),
+)
+
+DIRECT_PATTERNS: Final = (
+    # Shell/process command forms, including here-doc command examples that an
+    # operator could execute verbatim.
+    re.compile(r"^\s*(?:claude|pi)(?:\s|$)"),
+    re.compile(r"(?:^|[;&|]\s*|\bexec\s+|\bcommand\s+)(?:claude|pi)\s+(?:-p\b|--dangerously\b|--print\b)"),
+    re.compile(r"\bexec\s+(?:claude|pi)(?:\s|$)"),
+    re.compile(r"\bexec\s+(?:/[^\s/]+)+/(?:claude|pi)(?:\s|$)"),
+    re.compile(r"\bexec\s+[\"']?\$(?:\{?runtime\}?|MOSAIC_AGENT_RUNTIME)\b"),
+    # JS/TS and Python process APIs with a literal runtime binary.
+    re.compile(
+        r"\b(?:spawn|spawnSync|exec|execSync|execFile|execFileSync|execv|execvp|execvpe|Popen|run|call|system|check_call|check_output)\s*\(\s*(?:\[\s*)?[\"'](?:claude|pi)(?:[\"']|\s)"
+    ),
+    re.compile(
+        r"\b(?:spawn|spawnSync|exec|execSync|execFile|execFileSync|execv|execvp|execvpe|Popen|run|call|system|check_call|check_output)\s*\(\s*(?:\[\s*)?[\"'](?:/[^\"'/]+)+/(?:claude|pi)[\"']"
+    ),
+    # Launch-command arrays and the prior @mosaicstack/coord dynamic default.
+    re.compile(r"\b(?:spawn|spawnSync|exec|execSync|execFile|execFileSync)\s*\(\s*runtime\b"),
+    re.compile(r"\b(?:command|launchCommand|LAUNCH_COMMAND)\s*=\s*(?:\(|\[)\s*[\"']?(?:claude|pi)\b"),
+    re.compile(r"\b(?:command|launchCommand|LAUNCH_COMMAND)\s*=\s*(?:\(|\[)\s*[\"']?\$(?:\{?runtime\}?|MOSAIC_AGENT_RUNTIME)\b"),
+    re.compile(r"\breturn\s*\[\s*runtime\s*,\s*[\"'](?:-p|--dangerously)"),
+    re.compile(r"\$\(\s*(?:claude|pi)(?:\s|$)"),
+    re.compile(r"\beval\s+[\"'](?:claude|pi)(?:\s|[\"'])"),
+)
+RUNTIME_ASSIGNMENT: Final = re.compile(
+    r"^\s*([A-Za-z_][A-Za-z0-9_]*)\s*=\s*[\"']?(?:claude|pi)(?:\s|[\"']|[;&|]|$)"
+)
+TYPESCRIPT_WRAPPER_INVOCATION: Final = re.compile(
+    r"(?m)^\s*execRuntime\s*\(\s*[\"']python3[\"']\s*,\s*"
+    r"\[\s*launcher\s*,[^\]]*[\"']--runtime[\"']\s*,\s*runtime\s*,\s*"
+    r"[\"']--[\"']\s*,\s*runtime(?:\s*,|\s*\])",
+    re.DOTALL,
+)
+
+
+class LaunchSite(NamedTuple):
+    path: Path
+    line_number: int
+    line: str
+    classification: str
+
+
+def is_test_path(path: Path) -> bool:
+    name = path.name.lower()
+    return (
+        "__tests__" in path.parts
+        or ".spec." in name
+        or ".test." in name
+        or name.endswith("_unittest.py")
+        or name.startswith("test-")
+        or name.startswith("test_")
+    )
+
+
+def strip_comments(path: Path, line: str, in_block_comment: bool = False) -> tuple[str, bool]:
+    suffix = path.suffix.lower()
+    hash_comments = suffix in {".bash", ".py", ".sh", ".yaml", ".yml", ".zsh"}
+    slash_comments = suffix in {".cjs", ".js", ".mjs", ".ts", ".tsx"}
+    output: list[str] = []
+    quote: str | None = None
+    escaped = False
+    index = 0
+
+    while index < len(line):
+        if in_block_comment:
+            end = line.find("*/", index)
+            if end < 0:
+                return "".join(output), True
+            in_block_comment = False
+            index = end + 2
+            continue
+
+        character = line[index]
+        following = line[index + 1] if index + 1 < len(line) else ""
+        if quote is not None:
+            output.append(character)
+            if escaped:
+                escaped = False
+            elif character == "\\":
+                escaped = True
+            elif character == quote:
+                quote = None
+            index += 1
+            continue
+
+        if character in {"'", '"', "`"}:
+            quote = character
+            output.append(character)
+            index += 1
+            continue
+        if slash_comments and character == "/" and following == "/":
+            break
+        if slash_comments and character == "/" and following == "*":
+            in_block_comment = True
+            index += 2
+            continue
+        if hash_comments and character == "#":
+            if suffix == ".py" or index == 0 or line[index - 1].isspace():
+                break
+        output.append(character)
+        index += 1
+
+    return "".join(output), in_block_comment
+
+
+def is_choke_point(path: Path) -> bool:
+    return path.as_posix().endswith(CHOKE_POINT_SUFFIX)
+
+
+def shell_commands(line: str) -> list[list[str]]:
+    candidate = line.rstrip().removesuffix("\\").rstrip()
+    try:
+        lexer = shlex.shlex(candidate, posix=True, punctuation_chars=";&|")
+        lexer.whitespace_split = True
+        lexer.commenters = ""
+        tokens = list(lexer)
+    except ValueError:
+        return []
+
+    commands: list[list[str]] = []
+    current: list[str] = []
+    for token in tokens:
+        if token and all(character in ";&|" for character in token):
+            if current:
+                commands.append(current)
+                current = []
+        else:
+            current.append(token)
+    if current:
+        commands.append(current)
+    return commands
+
+
+def is_wrapper_invocation(path: Path, line: str) -> bool:
+    if path.suffix.lower() not in SHELL_SUFFIXES:
+        return False
+    separator = re.search(r"\s--(?:\s|$)", line)
+    if separator is None:
+        return False
+    # Everything after the wrapper separator is opaque runtime argv and may
+    # contain an open quote continued on later physical lines. Parse only the
+    # complete command-position prefix through the separator.
+    wrapper_prefix = line[: separator.end()]
+    for command in shell_commands(wrapper_prefix):
+        if command and command[0] == "exec":
+            command = command[1:]
+        if not command:
+            continue
+        if command[0] == "python3":
+            if len(command) < 2 or not command[1].endswith("launch-runtime.py"):
+                continue
+            arguments = command[2:]
+        elif command[0].endswith(("launch-runtime.py", "launch-runtime.sh")):
+            arguments = command[1:]
+        else:
+            continue
+        try:
+            runtime_index = arguments.index("--runtime")
+            separator_index = arguments.index("--")
+        except ValueError:
+            continue
+        if runtime_index + 1 < len(arguments) and runtime_index < separator_index:
+            return True
+    return False
+
+
+def is_gated_line(path: Path, line: str) -> bool:
+    return is_wrapper_invocation(path, line) or any(
+        pattern.search(line) for pattern in GATED_PATTERNS
+    )
+
+
+def shell_command_tokens(path: Path, line: str) -> list[str]:
+    if path.suffix.lower() not in SHELL_SUFFIXES:
+        return []
+    assignment = re.compile(r"^[A-Za-z_][A-Za-z0-9_]*=")
+    case_arm = re.match(r"^\s*[^;&()]+\)\s*", line)
+    command_source = line[case_arm.end() :] if case_arm is not None else line
+    resolved: list[str] = []
+    for command in shell_commands(command_source):
+        index = 0
+        while index < len(command) and assignment.match(command[index]):
+            index += 1
+        # Resolve command position once for every literal and variable caller.
+        # Prefixes may be nested in either order (for example `exec env A=1`).
+        while index < len(command):
+            if command[index] in {"command", "exec", "nohup"}:
+                index += 1
+                continue
+            if command[index] == "env":
+                index += 1
+                while index < len(command) and (
+                    command[index].startswith("-") or assignment.match(command[index])
+                ):
+                    index += 1
+                continue
+            break
+        if index < len(command):
+            resolved.append(command[index])
+    return resolved
+
+
+def runtime_variable_reference(token: str, runtime_variables: set[str]) -> bool:
+    match = re.fullmatch(r"\$(?:([A-Za-z_][A-Za-z0-9_]*)|\{([A-Za-z_][A-Za-z0-9_]*)\})", token)
+    if match is None:
+        return False
+    return (match.group(1) or match.group(2)) in runtime_variables
+
+
+def is_shell_direct_invocation(
+    path: Path, line: str, runtime_variables: set[str]
+) -> bool:
+    return any(
+        Path(token).name in {"claude", "pi"}
+        or runtime_variable_reference(token, runtime_variables)
+        for token in shell_command_tokens(path, line)
+    )
+
+
+def is_direct_line(path: Path, line: str, runtime_variables: set[str]) -> bool:
+    return is_shell_direct_invocation(path, line, runtime_variables) or any(
+        pattern.search(line) for pattern in DIRECT_PATTERNS
+    )
+
+
+def executes_runtime_variable(
+    path: Path, line: str, runtime_variables: set[str]
+) -> bool:
+    if any(
+        runtime_variable_reference(token, runtime_variables)
+        for token in shell_command_tokens(path, line)
+    ):
+        return True
+    for variable in runtime_variables:
+        reference = rf"\$(?:{re.escape(variable)}|\{{{re.escape(variable)}\}})"
+        if re.search(rf"\beval\s+[\"']?{reference}", line):
+            return True
+    return False
+
+
+def typescript_wrapper_lines(path: Path, source: str) -> set[int]:
+    if path.suffix.lower() not in {".js", ".mjs", ".ts", ".tsx"}:
+        return set()
+    return {
+        source.count("\n", 0, match.start()) + 1
+        for match in TYPESCRIPT_WRAPPER_INVOCATION.finditer(source)
+    }
+
+
+def classify_text(path: Path, source: str) -> list[LaunchSite]:
+    sites: list[LaunchSite] = []
+    validated_typescript_wrappers = typescript_wrapper_lines(path, source)
+    runtime_variables: set[str] = set()
+    gated_continuation = False
+    in_block_comment = False
+    for line_number, physical_line in enumerate(source.splitlines(), start=1):
+        line, in_block_comment = strip_comments(path, physical_line, in_block_comment)
+        stripped = line.strip()
+        if not stripped:
+            gated_continuation = False
+            continue
+
+        assignment = RUNTIME_ASSIGNMENT.match(line)
+        if assignment is not None:
+            runtime_variables.add(assignment.group(1))
+        primitive_violation = DANGEROUS_PRIMITIVE in line and not is_choke_point(path)
+        line_is_direct = is_direct_line(path, line, runtime_variables) or executes_runtime_variable(
+            path, line, runtime_variables
+        )
+        line_is_gated = line_number in validated_typescript_wrappers or is_gated_line(path, line)
+
+        if primitive_violation:
+            sites.append(
+                LaunchSite(path, line_number, physical_line.rstrip(), "dangerous-primitive")
+            )
+        elif line_is_direct and not gated_continuation:
+            # Direct syntax always wins over a same-line marker. Only the command
+            # continuation of a previously validated wrapper may contain the raw
+            # runtime binary itself.
+            sites.append(LaunchSite(path, line_number, physical_line.rstrip(), "direct"))
+        elif line_is_gated:
+            sites.append(LaunchSite(path, line_number, physical_line.rstrip(), "gated"))
+
+        gated = line_is_gated or gated_continuation
+        gated_continuation = gated and line.rstrip().endswith("\\")
+    return sites
+
+
+def scan_text(path: Path, source: str) -> list[LaunchSite]:
+    return [site for site in classify_text(path, source) if site.classification != "gated"]
+
+
+def source_files(root: Path):
+    for relative_root in SCANNED_ROOTS:
+        search_root = root / relative_root
+        if not search_root.is_dir():
+            continue
+        for path in search_root.rglob("*"):
+            if not path.is_file() or path.suffix.lower() not in SCANNED_SUFFIXES:
+                continue
+            if any(part in SKIPPED_DIRECTORIES for part in path.parts):
+                continue
+            if is_test_path(path):
+                continue
+            yield path
+
+
+def scan_repository(root: Path) -> list[LaunchSite]:
+    violations: list[LaunchSite] = []
+    for path in source_files(root):
+        try:
+            source = path.read_text(encoding="utf-8")
+        except UnicodeDecodeError:
+            violations.append(LaunchSite(path, 0, "non-UTF-8 source", "unscannable"))
+            continue
+        violations.extend(scan_text(path.relative_to(root), source))
+    return violations
+
+
+def inventory_repository(root: Path) -> list[LaunchSite]:
+    inventory: list[LaunchSite] = []
+    for path in source_files(root):
+        try:
+            source = path.read_text(encoding="utf-8")
+        except UnicodeDecodeError:
+            inventory.append(LaunchSite(path.relative_to(root), 0, "non-UTF-8 source", "unscannable"))
+            continue
+        relative_path = path.relative_to(root)
+        inventory.extend(classify_text(relative_path, source))
+    return inventory
+
+
+def format_violation(violation: LaunchSite) -> str:
+    return f"{violation.path}:{violation.line_number}: {violation.classification}: {violation.line.strip()}"
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--root", type=Path, default=Path.cwd())
+    parser.add_argument("--json", action="store_true")
+    arguments = parser.parse_args(argv)
+    root = arguments.root.resolve()
+    inventory = inventory_repository(root)
+    violations = [site for site in inventory if site.classification != "gated"]
+
+    if arguments.json:
+        print(
+            json.dumps(
+                {
+                    "gated": sum(site.classification == "gated" for site in inventory),
+                    "total": len(inventory),
+                    "sites": [
+                        {
+                            "path": str(site.path),
+                            "line": site.line_number,
+                            "classification": site.classification,
+                            "source": site.line.strip(),
+                        }
+                        for site in inventory
+                    ],
+                },
+                sort_keys=True,
+            )
+        )
+    else:
+        for site in inventory:
+            print(format_violation(site))
+        print(
+            f"runtime launch inventory: "
+            f"{len(inventory) - len(violations)} gated/{len(inventory)} total"
+        )
+
+    if violations:
+        print("ungated consequential runtime launch detected", file=sys.stderr)
+        return 1
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

packages/mosaic/framework/tools/lease-broker/launch-runtime.py

@@ -0,0 +1,115 @@
+#!/usr/bin/env python3
+"""Register a runtime parent with the lease broker, then exec without changing PID."""
+
+from __future__ import annotations
+
+import argparse
+import json
+import os
+import socket
+import sys
+from collections.abc import Callable, Mapping, Sequence
+from pathlib import Path
+from typing import Final
+
+from lease_generation import initialize_runtime_generation
+
+MAX_FRAME: Final = 64 * 1024
+BROKER_TIMEOUT_SECONDS: Final = 1.5
+CLAUDE_DANGEROUS_FLAG: Final = "--dangerously-skip-permissions"
+
+
+def broker_request(socket_path: Path, request: dict[str, object]) -> dict[str, object]:
+    payload = (json.dumps(request, separators=(",", ":")) + "\n").encode()
+    response = bytearray()
+    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as connection:
+        connection.settimeout(BROKER_TIMEOUT_SECONDS)
+        connection.connect(str(socket_path))
+        connection.sendall(payload)
+        connection.shutdown(socket.SHUT_WR)
+        while len(response) <= MAX_FRAME:
+            chunk = connection.recv(min(4096, MAX_FRAME + 1 - len(response)))
+            if not chunk:
+                break
+            response.extend(chunk)
+    if len(response) > MAX_FRAME or not response.endswith(b"\n"):
+        raise ValueError("invalid broker reply")
+    value = json.loads(response)
+    if not isinstance(value, dict):
+        raise ValueError("invalid broker reply")
+    return value
+
+
+def main(
+    argv: Sequence[str] | None = None,
+    *,
+    environ: Mapping[str, str] | None = None,
+    request: Callable[[Path, dict[str, object]], dict[str, object]] = broker_request,
+    execute: Callable[[str, list[str], dict[str, str]], object] = os.execvpe,
+    initialize_generation: Callable[[Path, int], None] = initialize_runtime_generation,
+) -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--runtime", required=True, choices=("claude", "pi"))
+    parser.add_argument("--dangerous", action="store_true")
+    parser.add_argument("command", nargs=argparse.REMAINDER)
+    arguments = parser.parse_args(argv)
+    command = arguments.command
+    if command and command[0] == "--":
+        command = command[1:]
+    if not command:
+        print("lease-gated runtime command is required", file=sys.stderr)
+        return 64
+    if arguments.dangerous:
+        if arguments.runtime != "claude" or Path(command[0]).name != "claude":
+            print("dangerous mode is supported only for the Claude runtime", file=sys.stderr)
+            return 64
+        command = [command[0], CLAUDE_DANGEROUS_FLAG, *command[1:]]
+
+    source_environment = os.environ if environ is None else environ
+    try:
+        socket_path = Path(source_environment["MOSAIC_LEASE_BROKER_SOCKET"])
+        generation = int(source_environment.get("MOSAIC_RUNTIME_GENERATION", "1"))
+        if generation < 0:
+            raise ValueError("invalid generation")
+        reply = request(
+            socket_path,
+            {
+                "action": "register_anchor",
+                "runtime_generation": generation,
+            },
+        )
+        session_id = reply.get("session_id")
+        if (
+            reply.get("ok") is not True
+            or not isinstance(session_id, str)
+            or len(session_id) != 64
+            or any(character not in "0123456789abcdef" for character in session_id)
+        ):
+            raise ValueError("registration refused")
+        generation_file = socket_path.parent / f"generation-{session_id}.state"
+        initialize_generation(generation_file, generation)
+    except (KeyError, ValueError, OSError, json.JSONDecodeError):
+        print("Mosaic lease broker registration failed; runtime launch denied.", file=sys.stderr)
+        return 1
+
+    environment = dict(source_environment)
+    environment["MOSAIC_LEASE_SESSION_ID"] = session_id
+    environment["MOSAIC_RUNTIME_GENERATION"] = str(generation)
+    environment["MOSAIC_LEASE_GENERATION_FILE"] = str(generation_file)
+    environment["MOSAIC_LEASE_RUNTIME"] = arguments.runtime
+    # Matches daemon.py's production default; deployments using a distinct
+    # observer socket may set this authenticated transport path explicitly.
+    environment.setdefault(
+        "MOSAIC_RECEIPT_OBSERVER_SOCKET",
+        str(socket_path.with_name("receipt-observer.sock")),
+    )
+    try:
+        execute(command[0], command, environment)
+    except OSError:
+        print("Mosaic lease-gated runtime exec failed.", file=sys.stderr)
+        return 1
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

packages/mosaic/framework/tools/lease-broker/lease_generation.py

@@ -0,0 +1,105 @@
+#!/usr/bin/env python3
+"""Private monotonic runtime-generation state shared by runtime hook processes."""
+
+from __future__ import annotations
+
+import fcntl
+import os
+import stat
+from collections.abc import Mapping
+from pathlib import Path
+from typing import Final
+
+MAX_GENERATION: Final = (1 << 63) - 1
+MAX_GENERATION_BYTES: Final = 32
+
+
+def parse_generation(value: object) -> int:
+    if not isinstance(value, str) or not value.isascii() or not value.isdigit():
+        raise ValueError("invalid runtime generation")
+    generation = int(value)
+    if generation < 0 or generation > MAX_GENERATION:
+        raise ValueError("invalid runtime generation")
+    return generation
+
+
+def _validate_descriptor(descriptor: int) -> None:
+    metadata = os.fstat(descriptor)
+    if not stat.S_ISREG(metadata.st_mode):
+        raise ValueError("runtime generation state is not a regular file")
+    if metadata.st_uid != os.geteuid():
+        raise ValueError("runtime generation state has the wrong owner")
+    if stat.S_IMODE(metadata.st_mode) & 0o077:
+        raise ValueError("runtime generation state permissions are not private")
+    if metadata.st_size > MAX_GENERATION_BYTES:
+        raise ValueError("runtime generation state is oversized")
+
+
+def _read_descriptor(descriptor: int) -> int:
+    os.lseek(descriptor, 0, os.SEEK_SET)
+    raw = os.read(descriptor, MAX_GENERATION_BYTES + 1)
+    if len(raw) > MAX_GENERATION_BYTES:
+        raise ValueError("runtime generation state is oversized")
+    try:
+        return parse_generation(raw.decode("ascii").strip())
+    except UnicodeDecodeError as exc:
+        raise ValueError("invalid runtime generation state") from exc
+
+
+def _write_descriptor(descriptor: int, generation: int) -> None:
+    payload = f"{generation}\n".encode("ascii")
+    os.lseek(descriptor, 0, os.SEEK_SET)
+    os.ftruncate(descriptor, 0)
+    remaining = memoryview(payload)
+    while remaining:
+        written = os.write(descriptor, remaining)
+        if written <= 0:
+            raise OSError("runtime generation write made no progress")
+        remaining = remaining[written:]
+    os.fsync(descriptor)
+
+
+def initialize_runtime_generation(path: Path, generation: int) -> None:
+    if generation < 0 or generation > MAX_GENERATION:
+        raise ValueError("invalid runtime generation")
+    descriptor = os.open(
+        path,
+        os.O_RDWR | os.O_CREAT | os.O_TRUNC | os.O_CLOEXEC | os.O_NOFOLLOW,
+        0o600,
+    )
+    try:
+        os.fchmod(descriptor, 0o600)
+        _validate_descriptor(descriptor)
+        _write_descriptor(descriptor, generation)
+    finally:
+        os.close(descriptor)
+
+
+def read_runtime_generation(environ: Mapping[str, str]) -> int:
+    state_path = environ.get("MOSAIC_LEASE_GENERATION_FILE")
+    if not state_path:
+        return parse_generation(environ["MOSAIC_RUNTIME_GENERATION"])
+    descriptor = os.open(state_path, os.O_RDONLY | os.O_CLOEXEC | os.O_NOFOLLOW)
+    try:
+        _validate_descriptor(descriptor)
+        return _read_descriptor(descriptor)
+    finally:
+        os.close(descriptor)
+
+
+def bump_runtime_generation(environ: Mapping[str, str]) -> int:
+    state_path = environ.get("MOSAIC_LEASE_GENERATION_FILE")
+    if not state_path:
+        raise ValueError("runtime generation file is required for same-PID rollover")
+    descriptor = os.open(state_path, os.O_RDWR | os.O_CLOEXEC | os.O_NOFOLLOW)
+    try:
+        fcntl.flock(descriptor, fcntl.LOCK_EX)
+        _validate_descriptor(descriptor)
+        current = _read_descriptor(descriptor)
+        if current >= MAX_GENERATION:
+            raise ValueError("runtime generation exhausted")
+        generation = current + 1
+        _write_descriptor(descriptor, generation)
+        return generation
+    finally:
+        os.close(descriptor)

packages/mosaic/framework/tools/lease-broker/mutator-gate.py

@@ -0,0 +1,166 @@
+#!/usr/bin/env python3
+"""Runtime-neutral whole mutator-class gate backed by the Mosaic lease broker."""
+
+from __future__ import annotations
+
+import argparse
+import json
+import os
+import socket
+import sys
+import re
+from collections.abc import Callable, Mapping, Sequence
+from pathlib import Path
+from typing import BinaryIO, Final
+
+# Isolated (`python -I`) adapter invocations must still import co-located
+# framework modules; never depend on the caller's PYTHONPATH.
+_MODULE_DIRECTORY = str(Path(__file__).resolve().parent)
+if _MODULE_DIRECTORY not in sys.path:
+    sys.path.insert(0, _MODULE_DIRECTORY)
+from lease_generation import read_runtime_generation
+
+MAX_FRAME: Final = 64 * 1024
+BROKER_TIMEOUT_SECONDS: Final = 1.5
+RECOVERY_TOOL: Final = "mosaic_context_recover"
+_LITERAL_ABSOLUTE_PATH: Final = re.compile(r"/[A-Za-z0-9._/-]+\Z")
+_SHELL_ACTIVE: Final = frozenset("$`~*?[]{}<>;|&" + '"' + "'" + "\\" + "\n\r\t")
+
+
+def deny(code: str) -> int:
+    print(f"BLOCKED: Mosaic mutator gate denied this tool ({code}).", file=sys.stderr)
+    return 2
+
+
+def read_tool_request(stream: BinaryIO | None = None) -> dict[str, object]:
+    source = sys.stdin.buffer if stream is None else stream
+    raw = source.read(MAX_FRAME + 1)
+    if len(raw) > MAX_FRAME:
+        raise ValueError("INVALID_GATE_INPUT")
+    value = json.loads(raw)
+    if not isinstance(value, dict):
+        raise ValueError("INVALID_GATE_INPUT")
+    tool_name = value.get("tool_name")
+    if not isinstance(tool_name, str) or not tool_name or len(tool_name) > 256:
+        raise ValueError("INVALID_GATE_INPUT")
+    return value
+
+
+def read_tool_name(stream: BinaryIO | None = None) -> str:
+    """Backward-compatible strict extraction for callers that need only the name."""
+
+    return str(read_tool_request(stream)["tool_name"])
+
+
+def recovery_invocation_name(request: dict[str, object], recovery_command: Path | None) -> str:
+    """Map only a byte-literal Claude recovery argv to ``RECOVERY_TOOL``.
+
+    Claude's Bash tool evaluates its raw command with a real shell. Therefore
+    the gate never attempts a second shell parser: any quote, expansion,
+    redirection, operator, glob, newline, or non-space whitespace is refused
+    before tokenizing. The remaining plain-space split is an exact argv proof,
+    not a best-effort interpretation of shell syntax.
+    """
+
+    tool_name = request["tool_name"]
+    if tool_name != "Bash" or recovery_command is None:
+        return str(tool_name)
+    tool_input = request.get("tool_input")
+    if not isinstance(tool_input, dict) or set(tool_input) != {"command"}:
+        return str(tool_name)
+    command = tool_input.get("command")
+    if (
+        not isinstance(command, str)
+        or not command
+        or any(character in _SHELL_ACTIVE for character in command)
+        or command.startswith(" ")
+        or command.endswith(" ")
+        or "  " in command
+    ):
+        return str(tool_name)
+    argv = command.split(" ")
+    if " ".join(argv) != command or len(argv) < 3 or argv[0] != "python3":
+        return str(tool_name)
+    if argv[1] != str(recovery_command):
+        return str(tool_name)
+    phase = argv[2]
+    if phase == "complete" and len(argv) == 3:
+        return RECOVERY_TOOL
+    if phase != "begin" or len(argv) != 9:
+        return str(tool_name)
+    if argv[3::2] != ["--construction", "--compaction-epoch", "--request-epoch"]:
+        return str(tool_name)
+    construction, compaction_epoch, request_epoch = argv[4::2]
+    if (
+        _LITERAL_ABSOLUTE_PATH.fullmatch(construction) is None
+        or not compaction_epoch.isdecimal()
+        or not request_epoch.isdecimal()
+    ):
+        return str(tool_name)
+    return RECOVERY_TOOL
+
+
+def broker_request(socket_path: Path, request: dict[str, object]) -> dict[str, object]:
+    payload = (json.dumps(request, separators=(",", ":")) + "\n").encode()
+    if len(payload) > MAX_FRAME:
+        raise ValueError("INVALID_GATE_INPUT")
+    response = bytearray()
+    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as connection:
+        connection.settimeout(BROKER_TIMEOUT_SECONDS)
+        connection.connect(str(socket_path))
+        connection.sendall(payload)
+        connection.shutdown(socket.SHUT_WR)
+        while len(response) <= MAX_FRAME:
+            chunk = connection.recv(min(4096, MAX_FRAME + 1 - len(response)))
+            if not chunk:
+                break
+            response.extend(chunk)
+    if len(response) > MAX_FRAME or not response.endswith(b"\n"):
+        raise ValueError("INVALID_BROKER_REPLY")
+    value = json.loads(response)
+    if not isinstance(value, dict):
+        raise ValueError("INVALID_BROKER_REPLY")
+    return value
+
+
+def main(
+    argv: Sequence[str] | None = None,
+    *,
+    environ: Mapping[str, str] | None = None,
+    stream: BinaryIO | None = None,
+    request: Callable[[Path, dict[str, object]], dict[str, object]] = broker_request,
+    resolve_generation: Callable[[Mapping[str, str]], int] = read_runtime_generation,
+) -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--runtime", required=True, choices=("claude", "pi"))
+    parser.add_argument("--recovery-command", type=Path)
+    arguments = parser.parse_args(argv)
+    source_environment = os.environ if environ is None else environ
+
+    try:
+        request_input = read_tool_request(stream)
+        tool_name = recovery_invocation_name(request_input, arguments.recovery_command)
+        socket_value = source_environment["MOSAIC_LEASE_BROKER_SOCKET"]
+        session_id = source_environment["MOSAIC_LEASE_SESSION_ID"]
+        generation = resolve_generation(source_environment)
+        reply = request(
+            Path(socket_value),
+            {
+                "action": "authorize_tool",
+                "session_id": session_id,
+                "runtime_generation": generation,
+                "runtime": arguments.runtime,
+                "tool_name": tool_name,
+            },
+        )
+    except (KeyError, ValueError, OSError, json.JSONDecodeError):
+        return deny("GATE_UNAVAILABLE")
+
+    if reply.get("ok") is True and reply.get("decision") == "allow":
+        return 0
+    code = reply.get("code")
+    return deny(code if isinstance(code, str) else "MUTATOR_UNVERIFIED")
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

packages/mosaic/framework/tools/lease-broker/normative_fragments.py

@@ -0,0 +1,215 @@
+#!/usr/bin/env python3
+"""Fail-closed construction of verbatim-hashed normative fragments.
+
+This is the single construction path for the Claude and Pi adapters.  The
+payload contains only versioned source metadata and exact validated source
+bytes.  ``h_payload`` is derived afterwards and is deliberately not representable
+as a payload input, preventing cryptographic self-reference.
+"""
+
+from __future__ import annotations
+
+import base64
+import hashlib
+import hmac
+import struct
+from collections.abc import Sequence
+from typing import Final
+
+MAX_FRAGMENT_BYTES: Final = 64 * 1024
+HASH_DOMAIN_SEPARATOR: Final = b"MOSAIC/H_PAYLOAD/v1\x00"
+SOURCE_DOMAIN_SEPARATOR: Final = b"MOSAIC/H_SOURCE/v1\x00"
+_PAYLOAD_VERSION_LABEL: Final = b"MOSAIC/B_PAYLOAD/v1"
+
+
+class NormativeFragment:
+    """A source identity, its expected digest, and its exact resolved bytes."""
+
+    def __init__(self, source_id: str, content: bytes | None, expected_sha256: str) -> None:
+        self.source_id = source_id
+        self.content = content
+        self.expected_sha256 = expected_sha256
+
+
+class ConstructionResult:
+    """A source-admission decision and, only when admitted, derived payload values.
+
+    ``promotion`` means the construction has produced the only values a later
+    receipt protocol may use to attempt promotion. It never performs broker
+    promotion itself. A REFUSED result has no payload/hash values, so it cannot
+    advance to that later protocol.
+    """
+
+    def __init__(
+        self,
+        injection_decision: str,
+        promotion: bool,
+        source_reason: str | None,
+        b_payload: bytes | None,
+        h_payload: str | None,
+        h_source: str | None,
+    ) -> None:
+        self.injectionDecision = injection_decision
+        self.promotion = promotion
+        self.source_reason = source_reason
+        self.b_payload = b_payload
+        self.h_payload = h_payload
+        self.h_source = h_source
+
+
+def length_frame(parts: Sequence[bytes]) -> bytes:
+    """Encode a finite ordered byte sequence with unambiguous 64-bit framing."""
+
+    framed = bytearray(struct.pack(">Q", len(parts)))
+    for part in parts:
+        if not isinstance(part, bytes):
+            raise TypeError("length framing requires bytes")
+        framed.extend(struct.pack(">Q", len(part)))
+        framed.extend(part)
+    return bytes(framed)
+
+
+def _sha256_hex(payload: bytes) -> str:
+    return hashlib.sha256(payload).hexdigest()
+
+
+def _valid_digest(value: object) -> bool:
+    return (
+        isinstance(value, str)
+        and len(value) == 64
+        and all(character in "0123456789abcdef" for character in value)
+    )
+
+
+def _source_reason(fragment: NormativeFragment) -> str | None:
+    if not isinstance(fragment.source_id, str) or not fragment.source_id:
+        return "missing"
+    if fragment.content is None:
+        return "missing"
+    if not isinstance(fragment.content, bytes):
+        return "missing"
+    if len(fragment.content) > MAX_FRAGMENT_BYTES:
+        return "oversize"
+    if not _valid_digest(fragment.expected_sha256):
+        return "hash-mismatch"
+    actual = _sha256_hex(fragment.content)
+    if not hmac.compare_digest(actual, fragment.expected_sha256):
+        return "hash-mismatch"
+    return None
+
+
+def _refused(reason: str) -> ConstructionResult:
+    return ConstructionResult(
+        injection_decision="REFUSED",
+        promotion=False,
+        source_reason=reason,
+        b_payload=None,
+        h_payload=None,
+        h_source=None,
+    )
+
+
+def build_payload(
+    *,
+    manifest_version: int,
+    generator_version: str,
+    fragments: Sequence[NormativeFragment],
+) -> ConstructionResult:
+    """Construct B_payload then H_payload after fail-closed source validation.
+
+    The sequence order is caller-supplied resolved-source order and is encoded
+    directly. Changing source order, source identity, metadata, or any exact
+    fragment byte therefore changes the framed B_payload and its derived hash.
+    """
+
+    if type(manifest_version) is not int or manifest_version < 0:
+        return _refused("missing")
+    if not isinstance(generator_version, str) or not generator_version:
+        return _refused("missing")
+
+    validated = list(fragments)
+    if not validated:
+        return _refused("missing")
+    for fragment in validated:
+        if not isinstance(fragment, NormativeFragment):
+            return _refused("missing")
+        reason = _source_reason(fragment)
+        if reason is not None:
+            return _refused(reason)
+
+    source_identities = [
+        length_frame([
+            fragment.source_id.encode("utf-8"),
+            fragment.expected_sha256.encode("ascii"),
+        ])
+        for fragment in validated
+    ]
+    h_source = _sha256_hex(SOURCE_DOMAIN_SEPARATOR + length_frame(source_identities))
+    payload_parts = [
+        _PAYLOAD_VERSION_LABEL,
+        str(manifest_version).encode("ascii"),
+        generator_version.encode("utf-8"),
+        *source_identities,
+        *(fragment.content for fragment in validated),
+    ]
+    # h_payload is intentionally not an argument or field in payload_parts.
+    b_payload = length_frame(payload_parts)
+    h_payload = _sha256_hex(HASH_DOMAIN_SEPARATOR + length_frame([b_payload]))
+    return ConstructionResult(
+        injection_decision="ACCEPTED",
+        promotion=True,
+        source_reason=None,
+        b_payload=b_payload,
+        h_payload=h_payload,
+        h_source=h_source,
+    )
+
+
+def build_payload_from_wire(value: object) -> ConstructionResult:
+    """Decode a bounded broker request then invoke the sole payload builder.
+
+    Wire inputs contain only source bytes and their claimed source digests. The
+    authoritative ``build_payload`` implementation remains the only code that
+    admits those bytes and derives ``h_source``/``h_payload``.
+    """
+
+    if not isinstance(value, dict) or set(value) != {
+        "manifest_version", "generator_version", "fragments"
+    }:
+        raise ValueError("invalid construction")
+    raw_fragments = value["fragments"]
+    if not isinstance(raw_fragments, list):
+        raise ValueError("invalid construction")
+    fragments: list[NormativeFragment] = []
+    for raw_fragment in raw_fragments:
+        if not isinstance(raw_fragment, dict) or set(raw_fragment) != {
+            "source_id", "content_base64", "expected_sha256"
+        }:
+            raise ValueError("invalid construction")
+        source_id = raw_fragment["source_id"]
+        encoded = raw_fragment["content_base64"]
+        expected_sha256 = raw_fragment["expected_sha256"]
+        if not isinstance(source_id, str) or not isinstance(encoded, str) or not isinstance(expected_sha256, str):
+            raise ValueError("invalid construction")
+        try:
+            content = base64.b64decode(encoded.encode("ascii"), validate=True)
+        except (UnicodeEncodeError, ValueError) as exc:
+            raise ValueError("invalid construction") from exc
+        fragments.append(NormativeFragment(source_id, content, expected_sha256))
+    return build_payload(
+        manifest_version=value["manifest_version"],
+        generator_version=value["generator_version"],
+        fragments=fragments,
+    )
+
+
+def build_for_claude(**kwargs: object) -> ConstructionResult:
+    """Claude adapter entrypoint; delegates to the sole shared constructor."""
+
+    return build_payload(**kwargs)  # type: ignore[arg-type]
+
+
+def build_for_pi(**kwargs: object) -> ConstructionResult:
+    """Pi adapter entrypoint; delegates to the sole shared constructor."""
+
+    return build_payload(**kwargs)  # type: ignore[arg-type]

packages/mosaic/framework/tools/lease-broker/receipt-observer-client.py

@@ -0,0 +1,143 @@
+#!/usr/bin/env python3
+"""Authenticated adapter-to-daemon transport for finalized assistant receipts.
+
+This is not a broker request client. It writes only to the daemon-owned observer
+socket, which authenticates SO_PEERCRED/ancestry before retaining a message for
+the broker's ReceiptObserver seam.
+"""
+
+from __future__ import annotations
+
+import argparse
+import json
+import os
+import socket
+import stat
+import sys
+from collections.abc import Mapping, Sequence
+from pathlib import Path
+from typing import Final
+
+
+MAX_FRAME: Final = 64 * 1024
+BROKER_TIMEOUT_SECONDS: Final = 1.5
+MAX_TRANSCRIPT_BYTES: Final = 4 * 1024 * 1024
+
+
+def read_json(stream: object) -> dict[str, object]:
+    raw = getattr(stream, "buffer", stream).read(MAX_FRAME + 1)
+    if not isinstance(raw, bytes) or len(raw) > MAX_FRAME:
+        raise ValueError("invalid observer input")
+    value = json.loads(raw)
+    if not isinstance(value, dict):
+        raise ValueError("invalid observer input")
+    return value
+
+
+def assistant_text(entry: object) -> str | None:
+    if not isinstance(entry, dict):
+        return None
+    message = entry.get("message", entry)
+    if not isinstance(message, dict) or message.get("role") != "assistant":
+        return None
+    content = message.get("content")
+    if isinstance(content, str):
+        return content
+    if not isinstance(content, list):
+        return None
+    parts: list[str] = []
+    for item in content:
+        if not isinstance(item, dict) or item.get("type") != "text" or not isinstance(item.get("text"), str):
+            return None
+        parts.append(item["text"])
+    return "".join(parts)
+
+
+def claude_latest_entry(value: dict[str, object]) -> str:
+    transcript_path = value.get("transcript_path")
+    if not isinstance(transcript_path, str) or not transcript_path:
+        raise ValueError("invalid Claude observer input")
+    path = Path(transcript_path)
+    flags = os.O_RDONLY | getattr(os, "O_CLOEXEC", 0) | getattr(os, "O_NOFOLLOW", 0)
+    descriptor = os.open(path, flags)
+    try:
+        metadata = os.fstat(descriptor)
+        if not stat.S_ISREG(metadata.st_mode) or metadata.st_size > MAX_TRANSCRIPT_BYTES:
+            raise ValueError("unsafe Claude transcript")
+        raw = os.read(descriptor, MAX_TRANSCRIPT_BYTES + 1)
+    finally:
+        os.close(descriptor)
+    if len(raw) > MAX_TRANSCRIPT_BYTES:
+        raise ValueError("oversized Claude transcript")
+    for line in reversed(raw.decode("utf-8").splitlines()):
+        try:
+            text = assistant_text(json.loads(line))
+        except json.JSONDecodeError as exc:
+            raise ValueError("invalid Claude transcript") from exc
+        if text is not None:
+            return text
+    raise ValueError("Claude transcript has no assistant entry")
+
+
+def pi_message_end(value: dict[str, object]) -> str:
+    if set(value) != {"latest_assistant_message"} or not isinstance(value["latest_assistant_message"], str):
+        raise ValueError("invalid Pi observer input")
+    return value["latest_assistant_message"]
+
+
+def observer_request(socket_path: Path, request: dict[str, object]) -> dict[str, object]:
+    payload = (json.dumps(request, separators=(",", ":")) + "\n").encode()
+    if len(payload) > MAX_FRAME:
+        raise ValueError("observer request too large")
+    response = bytearray()
+    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as connection:
+        connection.settimeout(BROKER_TIMEOUT_SECONDS)
+        connection.connect(str(socket_path))
+        connection.sendall(payload)
+        connection.shutdown(socket.SHUT_WR)
+        while len(response) <= MAX_FRAME:
+            chunk = connection.recv(min(4096, MAX_FRAME + 1 - len(response)))
+            if not chunk:
+                break
+            response.extend(chunk)
+    if len(response) > MAX_FRAME or not response.endswith(b"\n"):
+        raise ValueError("invalid observer reply")
+    value = json.loads(response)
+    if not isinstance(value, dict):
+        raise ValueError("invalid observer reply")
+    return value
+
+
+def main(argv: Sequence[str] | None = None, *, environ: Mapping[str, str] | None = None) -> int:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("--runtime", required=True, choices=("claude", "pi"))
+    parser.add_argument("--latest-entry", action="store_true")
+    arguments = parser.parse_args(argv)
+    source_environment = os.environ if environ is None else environ
+    try:
+        source = read_json(sys.stdin)
+        if arguments.runtime == "claude":
+            if not arguments.latest_entry:
+                raise ValueError("Claude observer requires --latest-entry")
+            message = claude_latest_entry(source)
+        else:
+            if arguments.latest_entry:
+                raise ValueError("Pi observer is message_end only")
+            message = pi_message_end(source)
+        if len(message.encode("utf-8")) > MAX_FRAME:
+            raise ValueError("assistant message too large")
+        reply = observer_request(Path(source_environment["MOSAIC_RECEIPT_OBSERVER_SOCKET"]), {
+            "action": "record_runtime_observation",
+            "session_id": source_environment["MOSAIC_LEASE_SESSION_ID"],
+            "runtime_generation": int(source_environment["MOSAIC_RUNTIME_GENERATION"]),
+            "runtime": arguments.runtime,
+            "latest_assistant_message": message,
+        })
+    except (KeyError, OSError, ValueError, json.JSONDecodeError) as error:
+        print(f"Mosaic receipt observer refused: {error}", file=sys.stderr)
+        return 2
+    return 0 if reply == {"ok": True} else 2
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

packages/mosaic/framework/tools/lease-broker/receipt_challenge.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+"""Broker-side construction and verification for one-time receipt challenges."""
+
+from __future__ import annotations
+
+import hashlib
+import hmac
+import struct
+from typing import Final
+
+
+LATEST_ASSISTANT_DOMAIN_SEPARATOR: Final = b"MOSAIC/H_LATEST_ASSISTANT/v1\x00"
+
+
+def _length_frame(value: bytes) -> bytes:
+    return struct.pack(">Q", len(value)) + value
+
+
+def receipt_for(challenge: str, binding: dict[str, object]) -> str:
+    """Return the sole receipt text a model may copy for this broker cycle."""
+
+    return (
+        "MOSAIC-RECEIPT{"
+        f"challenge={challenge}; "
+        f"H_payload={binding['h_payload']}; "
+        f"gen={binding['runtime_generation']}; "
+        f"cep={binding['compaction_epoch']}"
+        "}"
+    )
+
+
+def is_verbatim_receipt(message: str, challenge: str, binding: dict[str, object]) -> bool:
+    """Require the exact one current-cycle receipt, not a transcript substring."""
+
+    expected = receipt_for(challenge, binding)
+    return hmac.compare_digest(message, expected)
+
+
+def latest_assistant_digest(message: str) -> str:
+    """Record the broker-computed digest of the exact observed assistant entry."""
+
+    encoded = message.encode("utf-8")
+    return hashlib.sha256(LATEST_ASSISTANT_DOMAIN_SEPARATOR + _length_frame(encoded)).hexdigest()

packages/mosaic/framework/tools/lease-broker/receipt_observer.py

@@ -0,0 +1,133 @@
+#!/usr/bin/env python3
+"""Trusted latest-assistant-message observer boundary for receipt promotion.
+
+Production adapters deliver finalized assistant content over the daemon-owned
+observer socket after the daemon authenticates their peer against the broker's
+kernel-anchored session identity. The broker request protocol never accepts
+assistant-message content. Claude supplies its latest assistant entry; Pi
+supplies finalized assistant content at ``message_end``.
+"""
+
+from __future__ import annotations
+
+import json
+import os
+import stat
+from pathlib import Path
+from typing import Protocol
+
+
+class ReceiptObserver(Protocol):
+    def observe_latest_assistant_message(
+        self,
+        session_id: str,
+        runtime: str,
+        runtime_generation: int,
+        binding: dict[str, object],
+    ) -> str | None: ...
+
+
+class UnavailableReceiptObserver:
+    """Fail-closed only for direct unit construction without daemon transport."""
+
+    def observe_latest_assistant_message(
+        self,
+        _session_id: str,
+        _runtime: str,
+        _runtime_generation: int,
+        _binding: dict[str, object],
+    ) -> str | None:
+        return None
+
+
+class RuntimeReceiptObserver:
+    """Daemon-owned production observer populated only by authenticated adapters."""
+
+    def __init__(self) -> None:
+        self._messages: dict[tuple[str, str, int], str] = {}
+
+    def record_latest_assistant_message(
+        self,
+        session_id: str,
+        runtime: str,
+        runtime_generation: int,
+        message: str,
+    ) -> None:
+        self._messages[(session_id, runtime, runtime_generation)] = message
+
+    def observe_latest_assistant_message(
+        self,
+        session_id: str,
+        runtime: str,
+        runtime_generation: int,
+        _binding: dict[str, object],
+    ) -> str | None:
+        return self._messages.get((session_id, runtime, runtime_generation))
+
+
+class TestReceiptObserver:
+    """Deterministic controlled observer used only by byte-build tests."""
+
+    def __init__(self) -> None:
+        self._messages: dict[tuple[str, int], str] = {}
+
+    def record_latest_assistant_message(
+        self, session_id: str, runtime_generation: int, message: str
+    ) -> None:
+        self._messages[(session_id, runtime_generation)] = message
+
+    def observe_latest_assistant_message(
+        self,
+        session_id: str,
+        _runtime: str,
+        runtime_generation: int,
+        _binding: dict[str, object],
+    ) -> str | None:
+        return self._messages.get((session_id, runtime_generation))
+
+
+class FileTestReceiptObserver:
+    """Private fixture-file observer for isolated out-of-process test drivers only."""
+
+    def __init__(self, path: Path) -> None:
+        self.path = path
+
+    def observe_latest_assistant_message(
+        self,
+        session_id: str,
+        _runtime: str,
+        runtime_generation: int,
+        _binding: dict[str, object],
+    ) -> str | None:
+        flags = os.O_RDONLY | getattr(os, "O_CLOEXEC", 0) | getattr(os, "O_NOFOLLOW", 0)
+        try:
+            descriptor = os.open(self.path, flags)
+        except OSError:
+            return None
+        try:
+            metadata = os.fstat(descriptor)
+            if (
+                not stat.S_ISREG(metadata.st_mode)
+                or stat.S_IMODE(metadata.st_mode) != 0o600
+                or metadata.st_uid != os.geteuid()
+                or metadata.st_size > 64 * 1024
+            ):
+                return None
+            raw = os.read(descriptor, 64 * 1024 + 1)
+        finally:
+            os.close(descriptor)
+        if len(raw) > 64 * 1024:
+            return None
+        try:
+            value = json.loads(raw)
+        except (json.JSONDecodeError, UnicodeDecodeError):
+            return None
+        if (
+            not isinstance(value, dict)
+            or set(value) != {"session_id", "runtime_generation", "latest_assistant_message"}
+            or value["session_id"] != session_id
+            or value["runtime_generation"] != runtime_generation
+            or not isinstance(value["latest_assistant_message"], str)
+        ):
+            return None
+        return value["latest_assistant_message"]

packages/mosaic/framework/tools/lease-broker/recover-context.py

@@ -0,0 +1,151 @@
+#!/usr/bin/env python3
+"""Constrained recovery command: the sole ungated Mosaic mutator.
+
+This is deliberately a thin client of the broker's recovery entrypoint.  It
+never accepts receipt text or a caller-provided challenge: the broker mints the
+fresh challenge, delivers its exact receipt envelope, and later asks the
+trusted ReceiptObserver seam to observe that same pending cycle.
+"""
+
+from __future__ import annotations
+
+import argparse
+import json
+import os
+import socket
+import sys
+from collections.abc import Mapping, Sequence
+from pathlib import Path
+from typing import Final
+
+# The out-of-process recovery command is intentionally runnable with `python
+# -I`; locate its shipped construction module without caller-controlled paths.
+_MODULE_DIRECTORY = str(Path(__file__).resolve().parent)
+if _MODULE_DIRECTORY not in sys.path:
+    sys.path.insert(0, _MODULE_DIRECTORY)
+from normative_fragments import build_payload_from_wire
+
+MAX_FRAME: Final = 64 * 1024
+BROKER_TIMEOUT_SECONDS: Final = 1.5
+
+
+def broker_request(socket_path: Path, request: dict[str, object]) -> dict[str, object]:
+    payload = (json.dumps(request, separators=(",", ":")) + "\n").encode()
+    if len(payload) > MAX_FRAME:
+        raise ValueError("recovery request too large")
+    response = bytearray()
+    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as connection:
+        connection.settimeout(BROKER_TIMEOUT_SECONDS)
+        connection.connect(str(socket_path))
+        connection.sendall(payload)
+        connection.shutdown(socket.SHUT_WR)
+        while len(response) <= MAX_FRAME:
+            chunk = connection.recv(min(4096, MAX_FRAME + 1 - len(response)))
+            if not chunk:
+                break
+            response.extend(chunk)
+    if len(response) > MAX_FRAME or not response.endswith(b"\n"):
+        raise ValueError("invalid broker reply")
+    value = json.loads(response)
+    if not isinstance(value, dict):
+        raise ValueError("invalid broker reply")
+    return value
+
+
+def load_construction(path: Path) -> dict[str, object]:
+    raw = path.read_bytes()
+    if len(raw) > MAX_FRAME:
+        raise ValueError("construction exceeds broker frame limit")
+    value = json.loads(raw)
+    if not isinstance(value, dict):
+        raise ValueError("construction must be an object")
+    return value
+
+
+def identity(environ: Mapping[str, str]) -> tuple[Path, str, int, str]:
+    socket_path = Path(environ["MOSAIC_LEASE_BROKER_SOCKET"])
+    session_id = environ["MOSAIC_LEASE_SESSION_ID"]
+    generation = int(environ["MOSAIC_RUNTIME_GENERATION"])
+    runtime = environ["MOSAIC_LEASE_RUNTIME"]
+    if generation < 0 or runtime not in {"claude", "pi"}:
+        raise ValueError("invalid runtime identity")
+    return socket_path, session_id, generation, runtime
+
+
+def begin(
+    construction_path: Path,
+    compaction_epoch: int,
+    request_epoch: int,
+    environ: Mapping[str, str],
+) -> dict[str, object]:
+    if compaction_epoch < 0 or request_epoch < 0:
+        raise ValueError("epochs must be non-negative")
+    construction = load_construction(construction_path)
+    # Invoke the shared WI-5 construction before asking the broker to repeat
+    # its authoritative admission/build. No digest or receipt enters via CLI.
+    built = build_payload_from_wire(construction)
+    if (
+        built.injectionDecision != "ACCEPTED"
+        or not built.promotion
+        or not isinstance(built.h_source, str)
+        or not isinstance(built.h_payload, str)
+    ):
+        raise ValueError("payload construction refused")
+    socket_path, session_id, generation, runtime = identity(environ)
+    return broker_request(socket_path, {
+        "action": "begin_recovery",
+        "session_id": session_id,
+        "runtime_generation": generation,
+        "runtime": runtime,
+        "binding": {
+            "compaction_epoch": compaction_epoch,
+            "request_epoch": request_epoch,
+            "h_source": built.h_source,
+            "h_payload": built.h_payload,
+            "schema_version": 1,
+        },
+        "construction": construction,
+    })
+
+
+def complete(environ: Mapping[str, str]) -> dict[str, object]:
+    socket_path, session_id, generation, _runtime = identity(environ)
+    # No receipt or challenge argument exists: recovery completion can only use
+    # the broker's current recovery cycle and its trusted observer seam.
+    return broker_request(socket_path, {
+        "action": "complete_recovery",
+        "session_id": session_id,
+        "runtime_generation": generation,
+    })
+
+
+def main(argv: Sequence[str] | None = None, *, environ: Mapping[str, str] | None = None) -> int:
+    parser = argparse.ArgumentParser(description=__doc__)
+    subcommands = parser.add_subparsers(dest="phase", required=True)
+    begin_parser = subcommands.add_parser("begin", help="mint and deliver a fresh recovery receipt")
+    begin_parser.add_argument("--construction", required=True, type=Path)
+    begin_parser.add_argument("--compaction-epoch", required=True, type=int)
+    begin_parser.add_argument("--request-epoch", required=True, type=int)
+    subcommands.add_parser("complete", help="observe and promote only the current recovery receipt")
+    arguments = parser.parse_args(argv)
+    source_environment = os.environ if environ is None else environ
+    try:
+        reply = (
+            begin(
+                arguments.construction,
+                arguments.compaction_epoch,
+                arguments.request_epoch,
+                source_environment,
+            )
+            if arguments.phase == "begin"
+            else complete(source_environment)
+        )
+    except (KeyError, OSError, ValueError, json.JSONDecodeError) as error:
+        print(f"Mosaic constrained recovery refused: {error}", file=sys.stderr)
+        return 2
+    print(json.dumps(reply, separators=(",", ":")))
+    return 0 if reply.get("ok") is True else 2
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

packages/mosaic/framework/tools/lease-broker/revoke-lease.py

@@ -0,0 +1,100 @@
+#!/usr/bin/env python3
+"""Revoke a runtime lease from a compaction or lifecycle observer."""
+
+from __future__ import annotations
+
+import argparse
+import json
+import os
+import socket
+import sys
+from collections.abc import Callable, Mapping, Sequence
+from pathlib import Path
+from typing import Final
+
+from lease_generation import bump_runtime_generation, read_runtime_generation
+
+MAX_FRAME: Final = 64 * 1024
+BROKER_TIMEOUT_SECONDS: Final = 1.5
+
+
+def broker_request(socket_path: Path, request: dict[str, object]) -> dict[str, object]:
+    payload = (json.dumps(request, separators=(",", ":")) + "\n").encode()
+    if len(payload) > MAX_FRAME:
+        raise ValueError("invalid revoke request")
+    response = bytearray()
+    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as connection:
+        connection.settimeout(BROKER_TIMEOUT_SECONDS)
+        connection.connect(str(socket_path))
+        connection.sendall(payload)
+        connection.shutdown(socket.SHUT_WR)
+        while len(response) <= MAX_FRAME:
+            chunk = connection.recv(min(4096, MAX_FRAME + 1 - len(response)))
+            if not chunk:
+                break
+            response.extend(chunk)
+    if len(response) > MAX_FRAME or not response.endswith(b"\n"):
+        raise ValueError("invalid broker reply")
+    value = json.loads(response)
+    if not isinstance(value, dict):
+        raise ValueError("invalid broker reply")
+    return value
+
+
+def main(
+    argv: Sequence[str] | None = None,
+    *,
+    environ: Mapping[str, str] | None = None,
+    request: Callable[[Path, dict[str, object]], dict[str, object]] = broker_request,
+) -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--runtime", required=True, choices=("claude", "pi"))
+    parser.add_argument("--reason", required=True)
+    parser.add_argument("--bump-generation", action="store_true")
+    arguments = parser.parse_args(argv)
+    source_environment = os.environ if environ is None else environ
+
+    try:
+        if not arguments.reason or len(arguments.reason) > 128:
+            raise ValueError("invalid revoke reason")
+        socket_path = Path(source_environment["MOSAIC_LEASE_BROKER_SOCKET"])
+        session_id = source_environment["MOSAIC_LEASE_SESSION_ID"]
+        if (
+            len(session_id) != 64
+            or any(character not in "0123456789abcdef" for character in session_id)
+        ):
+            raise ValueError("invalid broker session")
+        generation = (
+            bump_runtime_generation(source_environment)
+            if arguments.bump_generation
+            else read_runtime_generation(source_environment)
+        )
+        reply = request(
+            socket_path,
+            {
+                "action": "revoke_lease",
+                "session_id": session_id,
+                "runtime_generation": generation,
+                "reason": arguments.reason,
+                "runtime": arguments.runtime,
+            },
+        )
+        if reply.get("ok") is not True or reply.get("state") != "UNVERIFIED":
+            raise ValueError("revocation refused")
+    except (KeyError, ValueError, OSError, json.JSONDecodeError):
+        # A fired observer must remain fail-closed even if the broker transport
+        # is unavailable. Advancing the private local generation fences every
+        # later tool check; the broker revokes the old lease when it next sees
+        # that higher generation. Explicit rollover already advanced it above.
+        if not arguments.bump_generation:
+            try:
+                bump_runtime_generation(source_environment)
+            except (KeyError, ValueError, OSError):
+                pass
+        print("Mosaic lease revocation failed; lifecycle transition denied.", file=sys.stderr)
+        return 2
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

packages/mosaic/framework/tools/orchestrator-matrix/adapters/README.md

@@ -32,7 +32,7 @@ Claude:
 ```json
 {
   "worker": {
-    "command_template": "claude -p \"Execute task {task_id}: {task_title}\""
+    "command_template": "mosaic claude -p \"Execute task {task_id}: {task_title}\""
   }
 }
 ```

packages/mosaic/framework/tools/prdy/prdy-init.sh

@@ -86,7 +86,8 @@ echo ""
 
 cd "$PROJECT"
 if [[ "$RUNTIME_CMD" == "claude" ]]; then
-  exec claude --dangerously-skip-permissions --append-system-prompt "$SYSTEM_PROMPT" "$KICKOFF"
+  exec python3 "$SCRIPT_DIR/../lease-broker/launch-runtime.py" --dangerous --runtime claude -- \
+    claude --append-system-prompt "$SYSTEM_PROMPT" "$KICKOFF"
 fi
 
 if [[ "$RUNTIME_CMD" == "codex" ]]; then

packages/mosaic/framework/tools/prdy/prdy-update.sh

@@ -74,7 +74,8 @@ echo ""
 
 cd "$PROJECT"
 if [[ "$RUNTIME_CMD" == "claude" ]]; then
-  exec claude --dangerously-skip-permissions --append-system-prompt "$SYSTEM_PROMPT" "$KICKOFF"
+  exec python3 "$SCRIPT_DIR/../lease-broker/launch-runtime.py" --dangerous --runtime claude -- \
+    claude --append-system-prompt "$SYSTEM_PROMPT" "$KICKOFF"
 fi
 
 if [[ "$RUNTIME_CMD" == "codex" ]]; then

packages/mosaic/framework/tools/qa/qa-hook-handler.sh

@@ -190,7 +190,7 @@ Pending QA validation
 This report was created by the QA automation hook.
 To process this report, run:
 \`\`\`bash
-claude -p "Use Task tool to launch universal-qa-agent for report: $REPORT_PATH"
+python3 ~/.config/mosaic/tools/lease-broker/launch-runtime.py --runtime claude -- claude -p "Use Task tool to launch universal-qa-agent for report: $REPORT_PATH"
 \`\`\`
 EOF
 

packages/mosaic/framework/tools/qa/qa-hook-stdin.sh

@@ -50,6 +50,21 @@ if ! [[ "$FILE_PATH" =~ \.(ts|tsx|js|jsx|mjs|cjs)$ ]]; then
     exit 0
 fi
 
+# Deps preflight (#856): this hook is the common gate-entry seam the delivery
+# cycle invokes on every Edit/Write/MultiEdit — it fires before any pnpm-based
+# gate (test/lint/typecheck/format:check) runs against the edited file. In a
+# freshly created git worktree (pnpm workspaces do NOT share node_modules
+# across worktrees), node_modules/.bin is empty until `pnpm install` has run,
+# so gate binaries (tsc/eslint/prettier/vitest) fail with a raw, illegible
+# `sh: 1: <tool>: not found` that is indistinguishable from a real failure.
+# Fail legibly here instead, before that raw error has a chance to surface.
+BIN_DIR="$PROJECT_ROOT/node_modules/.bin"
+if [ ! -d "$BIN_DIR" ] || [ -z "$(ls -A "$BIN_DIR" 2>/dev/null)" ]; then
+    echo "deps not installed — run pnpm install" >&2
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] [ERROR] deps not installed — run pnpm install ($BIN_DIR is missing or empty)" >> "$LOG_FILE"
+    exit 1
+fi
+
 # Call the main QA handler with extracted parameters
 if [ -f ~/.config/mosaic/tools/qa/qa-hook-handler.sh ]; then
     echo "[$(date '+%Y-%m-%d %H:%M:%S')] Calling QA handler for $FILE_PATH" >> "$LOG_FILE"

packages/mosaic/framework/tools/qa/remediation-hook-handler.sh

@@ -58,8 +58,8 @@ ACTIONS_PATH="$IN_PROGRESS_DIR/$ACTIONS_FILE"
 
 echo "[$(date '+%Y-%m-%d %H:%M:%S')] Starting remediation: $ACTIONS_PATH" | tee -a "$LOG_FILE"
 
-# Trigger remediation agent
-claude -p "Use Task tool to launch auto-remediation-agent for:
+# Trigger remediation agent through the authenticated lease-broker choke-point.
+python3 "$(dirname "$0")/../lease-broker/launch-runtime.py" --runtime claude -- claude -p "Use Task tool to launch auto-remediation-agent for:
 - Remediation Report: $IN_PROGRESS_DIR/$(basename "$REPORT_FILE")
 - Actions File: $ACTIONS_PATH
 - Max Iterations: 5

packages/mosaic/framework/tools/qa/test-deps-preflight.sh

@@ -0,0 +1,116 @@
+#!/usr/bin/env bash
+# Regression harness for #856: worker git-worktrees under a fresh `git worktree
+# add` have no node_modules until `pnpm install` runs (pnpm workspaces do NOT
+# share node_modules across worktrees). Before the fix, the gate-entry seam
+# (qa-hook-stdin.sh, registered as the PostToolUse hook for every Edit/Write/
+# MultiEdit in runtime/claude/settings.json) silently let a raw
+# `sh: 1: <tool>: not found` surface from any downstream gate invocation —
+# indistinguishable from a real test/lint failure (false-red).
+#
+# Asserts:
+#   1. RED (documented): a completely fresh worktree with no node_modules/.bin
+#      at all produces the raw "not found" for a gate binary — this is the
+#      defect the fix prevents from reaching the operator un-annotated.
+#   2. With node_modules/.bin missing entirely, the seam exits nonzero with
+#      the legible sentinel "deps not installed — run pnpm install" instead
+#      of silently proceeding (exit 0) into a would-be raw not-found.
+#   3. With node_modules/.bin present but empty, same legible-sentinel
+#      behavior (covers `git worktree add` immediately followed by an
+#      as-yet-incomplete/interrupted install).
+#   4. Once node_modules/.bin is populated (post `pnpm install`), the seam
+#      proceeds normally (exit 0) — the preflight does not false-positive.
+#   5. Non-JS/TS files are unaffected (existing skip behavior preserved).
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+HOOK="$SCRIPT_DIR/qa-hook-stdin.sh"
+
+TMP_DIR=$(mktemp -d)
+trap 'rm -rf "$TMP_DIR"' EXIT
+
+fail=0
+
+fail_msg() {
+    echo "FAIL: $*" >&2
+    fail=1
+}
+
+run_hook() {
+    local file_path="$1"
+    printf '{"tool_name":"Edit","tool_input":{"file_path":"%s"}}' "$file_path" | "$HOOK"
+}
+
+make_fixture_repo() {
+    local dir="$1"
+    mkdir -p "$dir"
+    git -C "$dir" init -q .
+    git -C "$dir" -c user.email=fixture@test -c user.name=fixture commit -q --allow-empty -m init
+}
+
+# --- Scenario 1: RED — document the pre-fix raw not-found a gate hits when
+#     node_modules/.bin is entirely absent (this is what the preflight now
+#     intercepts before any gate command runs).
+RED_DIR="$TMP_DIR/red-fixture"
+make_fixture_repo "$RED_DIR"
+RED_OUTPUT=$(PATH="/usr/bin:/bin" sh -c 'tsc --noEmit' 2>&1) && RED_STATUS=0 || RED_STATUS=$?
+case "$RED_OUTPUT" in
+    *"not found"*) ;;
+    *) fail_msg "expected the raw un-preflighted invocation to demonstrate 'not found'; got: $RED_OUTPUT" ;;
+esac
+[[ "$RED_STATUS" -ne 0 ]] || fail_msg "expected raw invocation without deps installed to fail"
+
+# --- Scenario 2: node_modules/.bin missing entirely -> legible sentinel, nonzero.
+MISSING_DIR="$TMP_DIR/missing-bin"
+make_fixture_repo "$MISSING_DIR"
+echo "console.log(1)" > "$MISSING_DIR/x.ts"
+OUTPUT=$(cd "$MISSING_DIR" && run_hook "$MISSING_DIR/x.ts" 2>&1) && STATUS=0 || STATUS=$?
+[[ "$STATUS" -ne 0 ]] || fail_msg "missing node_modules/.bin: expected nonzero exit, got 0"
+case "$OUTPUT" in
+    *"deps not installed"*"pnpm install"*) ;;
+    *) fail_msg "missing node_modules/.bin: expected legible sentinel, got: $OUTPUT" ;;
+esac
+
+# --- Scenario 3: node_modules/.bin present but empty -> legible sentinel, nonzero.
+EMPTY_DIR="$TMP_DIR/empty-bin"
+make_fixture_repo "$EMPTY_DIR"
+mkdir -p "$EMPTY_DIR/node_modules/.bin"
+echo "console.log(1)" > "$EMPTY_DIR/x.ts"
+OUTPUT=$(cd "$EMPTY_DIR" && run_hook "$EMPTY_DIR/x.ts" 2>&1) && STATUS=0 || STATUS=$?
+[[ "$STATUS" -ne 0 ]] || fail_msg "empty node_modules/.bin: expected nonzero exit, got 0"
+case "$OUTPUT" in
+    *"deps not installed"*"pnpm install"*) ;;
+    *) fail_msg "empty node_modules/.bin: expected legible sentinel, got: $OUTPUT" ;;
+esac
+
+# --- Scenario 4: node_modules/.bin populated (post `pnpm install`) -> proceeds normally.
+OK_DIR="$TMP_DIR/installed-bin"
+make_fixture_repo "$OK_DIR"
+mkdir -p "$OK_DIR/node_modules/.bin"
+printf '#!/bin/sh\necho ok\n' > "$OK_DIR/node_modules/.bin/tsc"
+chmod +x "$OK_DIR/node_modules/.bin/tsc"
+echo "console.log(1)" > "$OK_DIR/x.ts"
+OUTPUT=$(cd "$OK_DIR" && run_hook "$OK_DIR/x.ts" 2>&1) && STATUS=0 || STATUS=$?
+[[ "$STATUS" -eq 0 ]] || fail_msg "populated node_modules/.bin: expected exit 0, got $STATUS ($OUTPUT)"
+case "$OUTPUT" in
+    *"deps not installed"*) fail_msg "populated node_modules/.bin: unexpected sentinel fired: $OUTPUT" ;;
+    *) ;;
+esac
+
+# --- Scenario 5: non-JS/TS files are unaffected by the preflight (still
+#     skipped before the deps check, regardless of node_modules state).
+NONJS_DIR="$TMP_DIR/nonjs"
+make_fixture_repo "$NONJS_DIR"
+echo "# doc" > "$NONJS_DIR/README.md"
+OUTPUT=$(cd "$NONJS_DIR" && run_hook "$NONJS_DIR/README.md" 2>&1) && STATUS=0 || STATUS=$?
+[[ "$STATUS" -eq 0 ]] || fail_msg "non-JS/TS file: expected exit 0 (skip), got $STATUS ($OUTPUT)"
+case "$OUTPUT" in
+    *"deps not installed"*) fail_msg "non-JS/TS file: preflight incorrectly fired: $OUTPUT" ;;
+    *) ;;
+esac
+
+if [[ "$fail" -eq 0 ]]; then
+    echo "deps-preflight regression passed (5/5 scenarios)"
+fi
+
+exit "$fail"