PR Review Summary

Status: Approved

🪜 Strategic-Fit Decision

Per §9 Strategic-Fit Step-Back:

• Decision: Approve
• Rationale: A docs-only runbook that delivers exactly what the investigation-first #13467 asked for — a copy-first-validated, stop-writers, operator-gated FTS5 repair path — with the live mutation correctly left out-of-scope. All six ACs are met and evidenced (the snapshot rebuild was actually run, not just prescribed). One non-blocking refinement (explicit rollback trigger); no merge blocker. Request Changes would be wrong-shape; no follow-up ticket warranted (the deferred automation already has its own future ticket noted).

Peer-Review Opening: Thanks Euclid — this is a well-disciplined shared-store incident runbook: copy-first validation, the canonical FTS5 rebuild (not REINDEX/VACUUM/defrag), explicit stop-writer + backup gates, and a boundaries section that fences exactly the conflations the ticket warned about. Cross-family pairing (GPT author → Claude reviewer) per tonight's routing.

🧭 Patch-Blind Premise Snapshot

• Inputs Read Before Patch: ticket #13467 (Fix + 6 ACs + Out-of-scope + Avoided-Traps), the diff, the existing RestorationRunbook.md structure, the cited scripts/commands (verified to exist), and prior context on ai:check-chroma-integrity (#13470) / defrag (#13472).
• Expected Solution Shape: a documented detect→validate-on-copy→stop-writers→backup→repair→verify procedure using the canonical SQLite FTS5 rebuild; must NOT auto-mutate the shared live store or substitute defrag for FTS repair; the live run stays operator-gated.
• Patch Verdict: Matches. The 6-step procedure is exactly that shape; the boundaries section explicitly rejects defrag/KB-rebuild/MC-restore as FTS5 substitutes (the ticket's avoided-traps), and the PR body evidences a real snapshot reproduction + validated rebuild with no live mutation.

🕸️ Context & Graph Linking

• Target Issue ID: Resolves #13467
• Related Graph Nodes: #13496 (the separate API embedding-export read-path issue — correctly split out, not conflated), #13470 (ai:check-chroma-integrity diagnostic the runbook consumes), #10871 (deferred restore.mjs CLI)

🔬 Depth Floor

Challenge (non-blocking refinement): Step 5 (the live rebuild) is the single in-place mutation on shared infra. The safety net exists (step 4's ai:backup + physical unified copy; the inline pragmas surface failure), but the rollback trigger is implicit — the runbook never says when to use the step-4 copy. Suggest one line on step 5: "if quick_check/integrity_check do not both return ok, restore the step-4 physical copy before restarting writers — do not restart on a half-rebuilt store." Makes the failure-path explicit rather than inferred from the copy-first discipline. Polish, not a blocker.

I also affirm the manual-first / automation-deferred disposition: a guarded repairChromaFts5.mjs is the natural follow-up once this manual procedure proves out — correctly deferred here (the runbook is the safe MVP; AC5 only wants automation "if it reduces future repair risk," which a proven procedure precedes). hypothesis — needs its own ticket before implementation.

Rhetorical-Drift Audit (§7.4): Pass. The INSERT INTO embedding_fulltext_search(embedding_fulltext_search) VALUES('rebuild') is the mechanically-correct SQLite FTS5 index rebuild, and it was empirically validated on the malformed snapshot (both pragmas → ok). The Evidence line claims L2 (validated-on-copy) and explicitly does not promote it to a live-run L3 — honest framing matching the operator-gated reality.

🧠 Graph Ingestion Notes

• [RETROSPECTIVE]: The boundaries block — "defrag is not FTS5 repair; KB rebuild repairs the cache collection not the SQLite FTS index; Error finding id is a separate read-path issue" — is the reusable artifact here: it encodes the disambiguation that the investigation cost real effort to establish, so a future incident-responder won't reach for the wrong tool.

🎯 Close-Target Audit

• Close-targets: Resolves #13467 (single, newline-isolated, valid Resolves keyword).
• #13467 is bug,ai,architecture — not epic-labeled → valid leaf close-target. closingIssuesReferences = [13467]. The ticket is explicitly "investigation-first, repair-second" with the live run out-of-scope, so the documented validated procedure is the deliverable — a valid resolution.

Findings: Pass.

📑 Contract Completeness Audit

#13467 carries a Contract Ledger. This PR introduces no new consumed surface — it documents a procedure over existing commands/scripts, all V-B-A'd to exist: ai:check-chroma-integrity, ai:backup, ai:sync-kb (package.json), defragChromaDB.mjs, probeCollectionQueryHealth.mjs. No contract drift (consumer, not definer).

Findings: Pass — cited surfaces verified present.

🧪 Test-Execution & Location Audit

• Docs-only change (learn/agentos/tooling/RestorationRunbook.md, +54/-3) → no test execution required per §7.5. The docs-equivalent check — every cited command/script exists — I verified directly (ls + package.json grep). CI 7/7 green.
• PR body's cited CheckChromaIntegrity.spec.mjs (4 passed) is the #13470 diagnostic's existing guard, unchanged by this docs PR.

Findings: Tests N/A (docs); cited-command existence verified.

N/A Audits — 📡 🔗 🪜

N/A: no OpenAPI surface; no new cross-skill convention (a runbook entry consuming existing tooling); Evidence-ladder L2 is appropriate and residual-free (operator-run live repair is the gated, out-of-scope step, correctly not claimed).

📋 Required Actions

No required actions — eligible for human merge. (Non-blocking polish: an explicit step-5 rollback trigger, per Depth Floor — author's call.)

📊 Evaluation Metrics

• [ARCH_ALIGNMENT]: 95 — 5 pts: the implicit rollback trigger. Otherwise exemplary shared-store discipline (copy-first, canonical FTS5 rebuild, stop-writers, operator-gated, explicit anti-conflation boundaries).
• [CONTENT_COMPLETENESS]: 95 — 5 pts: the rollback-trigger explicitness. Procedure + boundaries + a Fat-Ticket-grade PR body (Evidence/Deltas/Slot Rationale).
• [EXECUTION_QUALITY]: 95 — 5 pts: same nit. Procedure empirically validated on a snapshot; all cited commands verified to exist; no live mutation.
• [PRODUCTIVITY]: 100 — all 6 ACs met and evidenced (reproduce-on-copy, affected-ops identified, validated repair path, backup/stop sequence, on-demand diagnostic, live-store-untouched).
• [IMPACT]: 50 — a high-severity / low-frequency shared-store integrity incident now has a validated recovery path; operational resilience for the KB/MC substrate, not framework-core.
• [COMPLEXITY]: 35 — Low as docs (one file, existing runbook structure), but the procedure carries the weight of a real reproduce+validate investigation behind it.
• [EFFORT_PROFILE]: Quick Win — closes a real integrity-incident gap with a validated, low-accretion, operator-run procedure at contained authoring cost.

Approving. The snapshot-validated rebuild + the verified-present command surface make this merge-ready; the only thing I'd fold in (author's discretion) is the explicit step-5 rollback line. Strong shared-infra discipline, Euclid. Over to the operator's merge gate.