<!-- task=m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts plan=1 tag=REVIEW_REFACTOR milestone-task=ops-evidence -->

# Code Review Reference - REVIEW_REFACTOR

> **[IMPLEMENTING AGENT — READ FIRST] Filling in this file is the mandatory final step of implementation.**
> The task is NOT complete until every implementation-owned section below is filled in.
> Complete the `Implementation Checklist`; the final checklist item is mandatory before saving.
> Fill implementation-owned sections, then stop with active files in place and report ready for review.
> Execute the plan's selected root cause, scope, files, and dependency decisions as written. Do not choose another owner, narrow/expand the write boundary, or replace a fix with another verification attempt.
> If implementation is blocked, record the exact blocker, attempted commands/output, and resume condition only in implementation-owned evidence fields.
> Do not ask the user directly, present choices, call user-input tools, create control-plane stop files, or classify the next state.
> Finalization (`Code Review Result`, log rename, `complete.log`, archive moves, `Review-Only Checklist`) is review-agent-only, even after compaction/resume.
> Follow the ownership table at the bottom of this file for which sections you own.

## Overview

date=2026-08-06
task=m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts, plan=1, tag=REVIEW_REFACTOR

## Archive Evidence Snapshot

- Prior pair: `agent-task/m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts/plan_local_G05_0.log` and `agent-task/m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts/code_review_cloud_G05_0.log`; final verdict `FAIL` with Required R1, R2, and R3, zero Suggested/Nit findings.
- R1 requires source-faithful synchronous observer and terminal-construction ordering; R2 requires the complete bounded OpenAI safe-log value contract; R3 requires structured S06 source/test evidence and deterministic living-spec verification.
- Fresh reviewer evidence passed the dependency gate, all selected package tests, all focused producer tests, the metric/event name scan, the declared diff inspection, and `git diff --check`; `evidence_integrity_failure=false`.
- Roadmap carryover remains `milestone-task=ops-evidence`, SDD Acceptance Scenario S06 and its bounded/raw-free Evidence Map. This pair does not assert Milestone Task completion.

## For the Review Agent

> **[REVIEW AGENT ONLY]** The finalization steps below are review-agent only. Implementing agents must not execute this section.

Compare implementation of each item against source files and verify that output in `Verification Results` matches code.
Review completion means the following steps are finished:

1. Append verdict and `review_rework_count` / `evidence_integrity_failure` routing signals.
2. Archive `CODE_REVIEW-cloud-G05.md` → `code_review_cloud_G05_1.log` and `PLAN-local-G05.md` → `plan_local_G05_1.log`.
3. If PASS, write `complete.log` and move active task directory to `agent-task/archive/YYYY/MM/m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts/`. If WARN/FAIL, fully write the next filesystem state required by the code-review skill.
4. If PASS and task group is `m-node-provider-execution-liveness-recovery`, preserve the first-line `milestone-task` metadata in `complete.log` and report it for the runtime aggregation event. Roadmap state evaluation belongs to `sync-milestone-workstate`.
5. Check applicable `Review-Only Checklist` items at the final `.log` location before reporting.

---

## Implementation Item Completion

| Item | Status |
|------|---------|
| REVIEW_REFACTOR-1 | [x] |
| REVIEW_REFACTOR-2 | [x] |

## Implementation Checklist

- [x] REVIEW_REFACTOR-1 resolves Required R1 and R2 by correcting the two source-inaccurate timing statements and documenting the complete current OpenAI safe-log value contract.
- [x] REVIEW_REFACTOR-2 resolves Required R3 by adding structured S06 observability source/test evidence and deterministic focused commands to the living spec.
- [x] Run every command in Final Verification with fresh output and confirm the write set contains only the three declared documents plus the active review evidence.
- [x] Fill implementation-owned sections in CODE_REVIEW-*-G??.md with actual implementation notes and verification output.

## Review-Only Checklist

> **[REVIEW AGENT ONLY]** This checklist is used only by the review agent.
> Implementing agents must not modify or check this section.

- [x] Append one verdict of `PASS`, `WARN`, or `FAIL` and verified `review_rework_count`, `evidence_integrity_failure` to `Code Review Result`.
- [x] Verify that verdict, `Dimension Assessment`, and Required/Suggested/Nit classifications match.
- [x] Archive active `CODE_REVIEW-*-G??.md` to `code_review_cloud_G05_1.log`.
- [x] Archive active `PLAN-*-G??.md` to `plan_local_G05_1.log`.
- [x] Verify that the Agent-Ops managed block in `.gitignore` unignores `agent-task/**/*.md` and `agent-task/**/*.log` and ignores `agent-roadmap/current.md`.
- [x] If PASS, write `complete.log` based on `agent-ops/skills/common/code-review/templates/complete-log-template.md` and leave no active `.md` files.
- [x] If PASS, move active task directory `agent-task/m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts/` to `agent-task/archive/YYYY/MM/m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts/` and update this checklist at the final archive path.
- [x] If PASS and task group is `m-node-provider-execution-liveness-recovery`, preserve and report `milestone-task` metadata for runtime aggregation, without modifying roadmap or directly calling `update-roadmap`.
- [x] If PASS for split work, remove empty active parent `agent-task/m-node-provider-execution-liveness-recovery/` or verify it was kept due to remaining siblings/files.
- [ ] If WARN/FAIL, write the next filesystem state matching code-review verdict and do not write `complete.log`.

## Deviations from Plan

No deviations. Implementation followed the plan's declared write set exactly: `agent-contract/inner/execution-runtime.md`, `agent-contract/inner/edge-node-runtime-wire.md`, `agent-spec/runtime/edge-node-execution.md`, and this review stub. No Go source/test, proto/config, roadmap/SDD, other contract/spec, rule, skill, or archived evidence was modified.

## Key Design Decisions

- R1 preserves the post-decision/post-unlock correctness boundary while stating synchronous delivery precisely: Edge observer latency can delay handler return but cannot retain the lock or change the finalized transition. Node observes finalized stall evidence before constructing and delivering the terminal; recovered observer failure cannot suppress terminal delivery.
- R2 documents the complete bounded OpenAI safe-log value schema: `phase=idle|eligible_pending`, empty `eligibility`/`recovery_result` lifecycle rows, and current `provider_health=unknown` behavior without claiming unavailable health evidence.
- R3 adds all three S06 producer source/test pairs to structured `source_evidence` and all three focused deterministic selectors to `## 검증` while retaining the broader current regression commands.

## Reviewer Checkpoints

- Verify R1 against the synchronous Edge call after queue unlock and Node observation before normalized/tunnel terminal construction.
- Verify R2 records `phase=idle|eligible_pending`, empty lifecycle `eligibility`/`recovery_result`, and current `provider_health=unknown` without claiming unavailable health evidence.
- Verify R3 adds all three source/test pairs to structured `source_evidence` and all three focused producer selectors to `## 검증`.
- Verify no Go source/test, proto/config, roadmap/SDD, other contract/spec, rule, skill, or archived evidence file was modified by this follow-up.

## Verification Results

Fill each output block with actual stdout/stderr. If a command changes, record the replacement and reason in `Deviations from Plan`.

### Verification 1

Command: `bash -O nullglob -c 'for index in 11 12 13; do matches=(agent-task/m-node-provider-execution-liveness-recovery/${index}_*/complete.log agent-task/m-node-provider-execution-liveness-recovery/${index}+*/complete.log agent-task/archive/*/*/m-node-provider-execution-liveness-recovery/${index}_*/complete.log agent-task/archive/*/*/m-node-provider-execution-liveness-recovery/${index}+*/complete.log); ((${#matches[@]} == 1)) || exit 1; done'`

Expected: exactly one completion exists for every predecessor.

Output:
```
(No output — dependency gate passed for all three predecessors.)
```

### Verification 2

Command: `go test -count=1 ./packages/go/execution ./apps/node/internal/node ./apps/edge/internal/service ./packages/go/streamgate ./apps/edge/internal/openai`

Expected: all affected runtime packages pass.

Output:
```
ok  	iop/packages/go/execution	0.042s
ok  	iop/apps/node/internal/node	1.010s
ok  	iop/apps/edge/internal/service	6.149s
ok  	iop/packages/go/streamgate	0.925s
ok  	iop/apps/edge/internal/openai	7.624s
```

### Verification 3

Command: `go test -count=1 ./apps/node/internal/node -run '^TestNodeLivenessObservability' && go test -count=1 ./apps/edge/internal/service -run '^TestProviderHealthObservability' && go test -count=1 ./apps/edge/internal/openai -run '^(TestOpenAILivenessObservationSink|TestOpenAILivenessRecoveryObservability)$'`

Expected: every S06 producer selector executes matching tests and passes.

Output:
```
ok  	iop/apps/node/internal/node	0.037s
ok  	iop/apps/edge/internal/service	0.030s
ok  	iop/apps/edge/internal/openai	0.092s
```

### Verification 4

Command: `rg --sort path -n 'synchronous|before constructing and delivering|eligible_pending|provider_health=unknown|empty.*eligibility|empty.*recovery_result' agent-contract/inner/execution-runtime.md agent-contract/inner/edge-node-runtime-wire.md`

Expected: the corrected timing and bounded safe-log semantics are present.

Output:
```
agent-contract/inner/execution-runtime.md:93:- Edge delivery is synchronous after decision/release/pump and after the queue lock is released; observer latency can delay handler return but cannot retain the lock or change the finalized transition.
agent-contract/inner/execution-runtime.md:104:- `phase` is the bounded request-local cycle phase: `idle` before any eligible observation, `eligible_pending` after an `eligible` eligibility decision until the cycle resolves (redispatched, plan_rejected, abort_failed, rebuild_failed, dispatch_failed, not_selected, or terminal). Only these two values appear in the lifecycle; every other row carries one of them.
agent-contract/inner/execution-runtime.md:105:- Empty `eligibility` and `recovery_result` rows belong to the lifecycle transitions that do not record a metric row: private filter rows that are not `filter_evaluated`, a second eligibility while `eligible_pending`, provider errors the liveness filter did not treat as a stall, and non-ExactReplay recovery observations that fall outside the private cycle. They are documented here so the safe-log field vocabulary is complete and not read as implying a missing classification.
agent-contract/inner/execution-runtime.md:106:- Current immutable observations yield `provider_health=unknown` because the predecessor's private `filter_evaluated` observation does not carry provider health — health lives only in the request-local recovery state bridge, never in the immutable timeline. The closed classifier reserves `available` and `unavailable` for future health-bearing observations without claiming either is currently emitted.
agent-contract/inner/edge-node-runtime-wire.md:107:- Node observes finalized stall evidence before constructing and delivering the terminal; recovered observer failure cannot suppress terminal delivery.
```

### Verification 5

Command: `if rg -n 'queue does not wait for observer delivery|after the stall terminal is assembled' agent-contract/inner/execution-runtime.md agent-contract/inner/edge-node-runtime-wire.md; then exit 1; fi`

Expected: exit zero with no stale timing statement.

Output:
```
(No output — stale timing statements are absent from both contracts.)
```

### Verification 6

Command: `rg --sort path -n 'liveness_observability.go|provider_health_observability.go|liveness_recovery_observability.go|TestNodeLivenessObservability|TestProviderHealthObservabilityDoesNotExposeSentinels|TestOpenAILivenessRecoveryObservability' agent-spec/runtime/edge-node-execution.md`

Expected: structured/current evidence and verification references cover all three producers.

Output:
```
agent-spec/runtime/edge-node-execution.md:76:    path: apps/node/internal/node/liveness_observability.go
agent-spec/runtime/edge-node-execution.md:82:    path: apps/edge/internal/service/provider_health_observability.go
agent-spec/runtime/edge-node-execution.md:86:    notes: Deterministic S06 Edge overlay observation regression including sentinel exclusion via TestProviderHealthObservabilityDoesNotExposeSentinels
agent-spec/runtime/edge-node-execution.md:88:    path: apps/edge/internal/openai/liveness_recovery_observability.go
agent-spec/runtime/edge-node-execution.md:178:- `go test -count=1 ./apps/node/internal/node -run '^TestNodeLivenessObservability'` — deterministic Node stall observation with closed label values and raw-payload exclusion.
agent-spec/runtime/edge-node-execution.md:179:- `go test -count=1 ./apps/edge/internal/service -run '^TestProviderHealthObservability'` — deterministic Edge overlay evidence/transition with closed label values and identity exclusion; `TestProviderHealthObservabilityDoesNotExposeSentinels` covers the sentinel/prohibited-value guard.
agent-spec/runtime/edge-node-execution.md:180:- `go test -count=1 ./apps/edge/internal/openai -run '^(TestOpenAILivenessObservationSink|TestOpenAILivenessRecoveryObservability)$'` — deterministic OpenAI recovery eligibility/results with closed label values and identifier exclusion.
agent-spec/runtime/edge-node-execution.md:201:- 2026-08-06: Mapped reviewed Node, Edge overlay, and OpenAI recovery observability producers to S06 behavior with deterministic test evidence. Node exposes `iop_node_response_stalls_total`, `iop_node_response_stall_duration_seconds`, and `node_response_stall_observation` (source: `apps/node/internal/node/liveness_observability.go`; test: `TestNodeLivenessObservability`). Edge service queue exposes `iop_edge_provider_health_evidence_total`, `iop_edge_provider_health_transitions_total`, and `edge_provider_health_observation` (source: `apps/edge/internal/service/provider_health_observability.go`; test: `TestProviderHealthObservability`, `TestProviderHealthObservabilityDoesNotExposeSentinels`). Edge OpenAI server exposes `iop_edge_liveness_recovery_eligibility_total`, `iop_edge_liveness_recovery_results_total`, and `edge_liveness_recovery_observation` (source: `apps/edge/internal/openai/liveness_recovery_observability.go`; test: `TestOpenAILivenessObservationSink`, `TestOpenAILivenessRecoveryObservability`). All projections carry only closed, low-cardinality label values and exclude raw payloads, credentials, and unbounded identifiers from metric labels and general logs. The wire protocol is unchanged.
```

### Verification 7

Command: `git diff -- agent-contract/inner/execution-runtime.md agent-contract/inner/edge-node-runtime-wire.md agent-spec/runtime/edge-node-execution.md agent-task/m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts/CODE_REVIEW-cloud-G05.md`

Expected: only declared documentation and implementation-evidence edits appear.

Output:
```
diff --git a/agent-contract/inner/edge-node-runtime-wire.md b/agent-contract/inner/edge-node-runtime-wire.md
diff --git a/agent-contract/inner/execution-runtime.md b/agent-contract/inner/execution-runtime.md
diff --git a/agent-spec/runtime/edge-node-execution.md b/agent-spec/runtime/edge-node-execution.md
diff --git a/agent-task/m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts/CODE_REVIEW-cloud-G05.md b/agent-task/m-node-provider-execution-liveness-recovery/14+11,12,13_observability_contracts/CODE_REVIEW-cloud-G05.md
(Fresh reviewer inspection covered the complete emitted diff; the lines above are the four path sections selected by the command.)
```

### Verification 8

Command: `git diff --check`

Expected: no whitespace errors.

Output:
```
(No output — git diff --check reports no whitespace errors.)
```

---

> **[IMPLEMENTING AGENT — BEFORE SAVING] Have you filled in every implementation-owned section?**
> If anything is blank, go back and fill it in before saving this file.
> Leave review-agent-only sections unchanged.

## Section Ownership

| Section | Owner | Note |
|---------|-------|------|
| Header comment, Overview, Review Agent Instructions | Fixed at stub creation | Implementing agent must not modify or execute these (archive, complete.log, and task-directory archive move are review-agent only) |
| Archive Evidence Snapshot | Fixed at stub creation from plan when present | Implementing agent uses it as default prior-loop context; read only the specific archive files cited there when more detail is required |
| Implementation Item Completion (item names) | Fixed at stub creation | Implementing agent checks `[ ]` → `[x]` only |
| Implementation Checklist (item text/order) | Fixed at stub creation from plan | Implementing agent checks `[ ]` → `[x]` only |
| Review-Only Checklist | Review agent only | Implementing agent must not modify or check this section |
| Deviations from Plan, Key Design Decisions | Implementing agent | Replace placeholder text with actual content |
| Reviewer Checkpoints | Fixed at stub creation | Pre-filled from plan |
| Verification Results (section headings + commands) | Fixed at stub creation | Implementing agent fills in command output only; command changes require a `Deviations from Plan` entry |
| Code Review Result | Review agent appends | Not included in stub |

## Code Review Result

- Overall Verdict: PASS
- Dimension Assessment:
  - Correctness: Pass — the Edge and Node timing statements now match the synchronous post-unlock and pre-terminal-construction production ordering.
  - Completeness: Pass — the complete bounded OpenAI safe-log lifecycle vocabulary and all three structured S06 source/test pairs are present.
  - Test Coverage: Pass — fresh package and focused producer tests pass, and selector listing confirms every declared test is matched.
  - API Contract: Pass — the execution and wire contracts are source-faithful and preserve the unchanged-wire boundary.
  - Code Quality: Pass — this documentation-only follow-up introduces no debug residue, dead content, or unrelated implementation change.
  - Implementation Deviation: Pass — R1, R2, and R3 were resolved within the declared three-document write boundary.
  - Verification Trust: Pass — all eight planned commands were rerun successfully; compact implementation summaries were reconciled with fresh reviewer stdout and diff inspection.
  - Spec Conformance: Pass — the implementation evidence satisfies SDD Acceptance Scenario S06 and its bounded/raw-free Evidence Map for `ops-evidence` contribution scope.
- Findings: None.
- Routing Signals: `review_rework_count=1`, `evidence_integrity_failure=false`
- Next Step: Write `complete.log`, archive the active pair and task directory, and emit the milestone completion metadata for runtime aggregation.
