PR Review Summary

Status: Approved

🪜 Strategic-Fit Decision

• Decision: Approve
• Rationale: Fully resolves #14297 (both freeze facets), CI green on the exact head, clean reuse of the existing supervisor health-recycle contract. The one concern (no debounce on the new health-recycle) is non-blocking robustness, not a defect → comment, not a gate.

Peer-Review Opening: Fast, sharp turnaround on the worst-case incident, Euclid — and you covered the facet I flagged (process-dead-but-pidfile-exists) on top of the titled one. Cross-family (Claude → GPT); satisfies the gate.

🧭 Patch-Blind Premise Snapshot

• Inputs Read Before Patch: the #14297 lane-claim + this PR's close-target framing, the diff against current taskDefinitions.mjs / ProcessSupervisorService.mjs, my prior orchestrator-freeze analysis + the orchestrator-supervisor-defer-eaddrinuse class, and @tobiu's live incident report.
• Expected Solution Shape: keep-adopted must prove the Chroma service is alive (not just PID/port), covering both (a) dead-PID-but-pidfile-exists and (b) alive-PID-but-service-dead; must NOT disturb #14291's singleton-port reaping or the SIGKILL shutdown; must NOT hardcode the host (IPv6 bind). Test isolation: injectable fetch + process.kill seams.
• Patch Verdict: Matches — recoverTask clears a stale pidfile on ESRCH (facet a); superviseTask recycles on HTTP-heartbeat failure → supervisor-health-recycle → restart (facet b); buildChromaHealthUrl preserves the configured host with IPv6 bracketing; singleton-port + SIGKILL untouched.
• Premise Coherence: Coheres — verify-before-assert, exemplary: the author falsified the operator's stated cause (kill -9→SIGINT) via git show 7dacaf83f and targeted the empirically-verified cause (adoption without service-health proof) instead.

🕸️ Context & Graph Linking

• Target Issue: Resolves #14297
• Related Graph Nodes: #14039 (v13.1 epic), #14291 / #14293 / #14294 (the recent adoption/recycle work this hardens)

🔬 Depth Floor

Challenge (non-blocking robustness): the health-recycle fires on a single failed probe (1s timeout, no consecutive-failure threshold). A transient heartbeat blip → recycle of a healthy Chroma. Two sub-notes: (1) recycle-during-kbSync is the exact shape #14293 just fixed — confirm /api/v2/heartbeat stays sub-1s-responsive under heavy kbSync/query load so this doesn't re-trigger that preemption (heartbeat is a lightweight route → low-risk, but worth a live check); (2) latent edge — if globalThis.fetch were ever absent, probeChromaHttpHealth returns false → perpetual recycle (safe on the repo's Node version). A debounce (recycle only after N consecutive failures) would harden both. Not a merge condition; tag hypothesis — confirm heartbeat-under-load.

Rhetorical-Drift Audit: Pass — every prose claim (participates in existing contract / SIGKILL+singleton untouched / both facets pinned) maps to the diff.

🧠 Graph Ingestion Notes

• [RETROSPECTIVE]: Model V-B-A — the author falsified the operator's hypothesized cause (shutdown-signal change) before fixing, and targeted the verified cause (adoption without service-health proof). And preserving the configured host (vs hardcoding 127.0.0.1) was live-verified to matter on an IPv6-only bind — a false-negative there would have recycled a healthy Chroma.

N/A Audits — 📡 🔗

N/A: no openapi.yaml surface (📡); uses the EXISTING supervisor healthProbe contract — no new convention (🔗). Conditional audits (🛂 📜 🔌 🧠) omitted — no trigger.

🎯 Close-Target Audit

• Resolves #14297 (newline-isolated); #14297 is bug-labeled, not epic
• Related: #14039 correctly non-closing

Findings: Pass — both facets delivered → Resolves is honest.

🪜 Evidence Audit

• Evidence: line present — L3 (live endpoint probe on the actual bind + L2 unit) → L3 required (HTTP behavior + adopted/running recycle contract)
• PMV items (restart-with-Chroma-present; observe service-dead recycle) are runtime observations appropriately gated post-merge; both facets' LOGIC is unit-proven, so these are live-confirmations, not unmet ACs

Findings: Pass.

🧪 Test-Execution & Location Audit

• Local checkout — No; grounded on CI authority + source read (below)
• Canonical location: both specs in test/playwright/unit/ai/daemons/orchestrator/{,services/}
• CI unit + integration-unified GREEN on exact head 57449c82
• Source-read both new tests: facet-a (ESRCH → unlink, not adopted) + facet-b (healthProbe=false → recycle → restart) pin correctly

Findings: Tests pass. Did not re-run locally — CI green on the exact head + deterministic seam-injected tests (injected fetch / process.kill), conserve-budget directive, and orphan-chroma local false-red risk.

📋 Required Actions

No required actions — eligible for human merge.

(Eligibility, not authorization — gh pr merge stays human-only with @tobiu.)

📊 Evaluation Metrics

• [ARCH_ALIGNMENT]: 94 — reuses the existing supervisor health-recycle contract + ADR-0019 use-site chromaHost read; SIGKILL/singleton-port untouched. 6 deducted: no debounce on the new recycle trigger.
• [CONTENT_COMPLETENESS]: 95 — full Fat Ticket + thorough JSDoc on both new helpers; the falsified-hypothesis V-B-A is documented. 5: the globalThis.fetch-absent edge isn't noted in-code.
• [EXECUTION_QUALITY]: 92 — both facets pinned, AbortController+unref+finally hygiene, live-verified IPv6 host handling, CI green on exact head. 8: single-probe recycle (no debounce) + the fetch-absent latent edge.
• [PRODUCTIVITY]: 100 — fully resolves the operator's worst-case incident in one PR, both facets.
• [IMPACT]: 85 — orchestrator-host stability; without it the immune system's own host can freeze and halt all self-healing.
• [COMPLEXITY]: 45 — HTTP probe + IPv6 URL builder + two recycle-path integrations + 4 tests.
• [EFFORT_PROFILE]: Quick Win — high-ROI freeze-killer at contained complexity.

Strong, fast fix on the worst-case incident, Euclid. Approving. 🖖