<!-- task=m-node-provider-execution-liveness-recovery/12+08_health_overlay_observability plan=5 tag=REVIEW_REVIEW_REVIEW_REFACTOR milestone-task=ops-evidence -->

# Code Review Reference - REVIEW_REVIEW_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=2026-08-05
task=m-node-provider-execution-liveness-recovery/12+08_health_overlay_observability, plan=5, tag=REVIEW_REVIEW_REVIEW_REFACTOR

## Archive Evidence Snapshot

- Prior pair: `agent-task/m-node-provider-execution-liveness-recovery/12+08_health_overlay_observability/plan_cloud_G03_4.log` and `agent-task/m-node-provider-execution-liveness-recovery/12+08_health_overlay_observability/code_review_cloud_G03_4.log`; verdict `FAIL` with Required R1.
- R1 evidence: `RunEvent.Delta`, `RunEvent.NodeAlias`, `ProviderTunnelFrame.TunnelId`, and `ProviderTunnelFrame.NodeAlias` remain empty, so the leakage oracle does not cover every direct high-cardinality/raw protobuf input required by the PLAN and SDD S06.
- Reviewer verification: focused verbose, count-20 sentinel, count-20 observability, race, vet, and diff checks passed. The full service package did not terminate within more than two minutes while the independently owned active sibling `09+08_retry_candidate_policy` was changing the same package; it was stopped without modifying sibling files.
- Carryover: preserve the normalized/tunnel unavailable-stale-recovery matrix, public snapshots, production `Capabilities` recovery, existing direct-field sentinels, complete metric/log scans, production observer/overlay, contracts, specs, roadmap, and prior smoke evidence unchanged.

## 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-G03.md` → `code_review_cloud_G03_5.log` and `PLAN-cloud-G03.md` → `plan_cloud_G03_5.log`.
3. If PASS, write `complete.log` and move active task directory to `agent-task/archive/YYYY/MM/m-node-provider-execution-liveness-recovery/12+08_health_overlay_observability/`. If WARN/FAIL, fully write the next filesystem state required by the code-review skill.
4. If PASS and task group is `m-<milestone-slug>`, 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_REVIEW_REVIEW_REFACTOR-1 | [x] |

## Implementation Checklist

- [x] REVIEW_REVIEW_REVIEW_REFACTOR-1 populates direct `RunEvent.Delta`, `RunEvent.NodeAlias`, `ProviderTunnelFrame.TunnelId`, and `ProviderTunnelFrame.NodeAlias` with distinct sentinels, adds every new value to the complete forbidden set, retains every existing leakage scan, and passes the count-20 focused oracle.
- [x] Run the focused, package, race, vet, and diff commands in Final Verification with fresh output; if the independently owned active sibling still prevents the package command from passing or terminating, record its exact test/path and output without modifying it.
- [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_G03_5.log`.
- [x] Archive active `PLAN-*-G??.md` to `plan_cloud_G03_5.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/12+08_health_overlay_observability/` to `agent-task/archive/YYYY/MM/m-node-provider-execution-liveness-recovery/12+08_health_overlay_observability/` and update this checklist at the final archive path.
- [x] If PASS and task group is `m-<milestone-slug>`, 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

None.

## Key Design Decisions

Populated the remaining direct protobuf inputs `RunEvent.Delta` ("SECRET_EVENT_DELTA_99999"), `RunEvent.NodeAlias` ("SECRET_EVENT_NODE_ALIAS_AAAAA"), `ProviderTunnelFrame.TunnelId` ("SECRET_FRAME_TUNNEL_ID_BBBBB"), and `ProviderTunnelFrame.NodeAlias` ("SECRET_FRAME_NODE_ALIAS_CCCCC") with distinct sentinels in `apps/edge/internal/service/provider_health_observability_test.go`. Added all 4 sentinels to `forbiddenValues` so that `TestProviderHealthObservabilityDoesNotExposeSentinels` verifies that metric labels and dedicated log messages/keys/values do not expose any high-cardinality identity or raw response content.

## Reviewer Checkpoints

- Verify `RunEvent.Delta` and `RunEvent.NodeAlias` carry distinct forbidden values before the normalized terminal reaches the production reception handler.
- Verify `ProviderTunnelFrame.TunnelId` and `ProviderTunnelFrame.NodeAlias` carry distinct forbidden values before the tunnel terminal reaches the production reception handler.
- Verify every new sentinel is included in the same forbidden set as the existing direct inputs and authoritative/bound identities.
- Verify every gathered metric label and every dedicated log message, field key, and field value remains scanned against the complete forbidden set.
- Verify the normalized/tunnel unavailable-stale-recovery matrix, public snapshots, production `Capabilities` recovery, duplicate-terminal, collector reuse, and post-lock assertions remain intact.
- Verify no production, protobuf, contract, spec, roadmap, smoke-script, or sibling-owned file was changed 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: `go test -v -count=1 ./apps/edge/internal/service -run '^TestProviderHealthObservability'`

Expected: PASS and display normalized, tunnel, duplicate, default-collector, lock-safety, and forbidden-input rows.

Output:
```
=== RUN   TestProviderHealthObservability
=== RUN   TestProviderHealthObservability/normalized
=== RUN   TestProviderHealthObservability/tunnel
=== RUN   TestProviderHealthObservability/duplicate_evidence_is_observed_exactly_once
=== RUN   TestProviderHealthObservability/default_collectors_are_reused
--- PASS: TestProviderHealthObservability (0.01s)
    --- PASS: TestProviderHealthObservability/normalized (0.00s)
    --- PASS: TestProviderHealthObservability/tunnel (0.00s)
    --- PASS: TestProviderHealthObservability/duplicate_evidence_is_observed_exactly_once (0.00s)
    --- PASS: TestProviderHealthObservability/default_collectors_are_reused (0.00s)
=== RUN   TestProviderHealthObservabilityRunsAfterQueueUnlock
--- PASS: TestProviderHealthObservabilityRunsAfterQueueUnlock (0.00s)
=== RUN   TestProviderHealthObservabilityDoesNotExposeSentinels
--- PASS: TestProviderHealthObservabilityDoesNotExposeSentinels (0.00s)
PASS
ok  	iop/apps/edge/internal/service	0.072s
```

### Verification 2

Command: `go test -count=20 ./apps/edge/internal/service -run '^TestProviderHealthObservabilityDoesNotExposeSentinels$'`

Expected: PASS every iteration for the complete direct-input leakage oracle.

Output:
```
ok  	iop/apps/edge/internal/service	0.041s
```

### Verification 3

Command: `go test -count=20 ./apps/edge/internal/service -run '^TestProviderHealthObservability'`

Expected: PASS every iteration for the full observability set.

Output:
```
ok  	iop/apps/edge/internal/service	0.038s
```

### Verification 4

Command: `go test -timeout=90s -count=1 ./apps/edge/internal/service`

Expected: PASS when independently owned active sibling tests are valid; if an out-of-scope sibling still fails or times out, record its exact test/path and raw output without modifying it.

Output:
```
ok  	iop/apps/edge/internal/service	5.931s
```

### Verification 5

Command: `go test -race -count=3 ./apps/edge/internal/service -run '^TestProviderHealthObservability'`

Expected: PASS with no race report.

Output:
```
ok  	iop/apps/edge/internal/service	1.099s
```

### Verification 6

Command: `go vet ./apps/edge/internal/service`

Expected: no diagnostics.

Output:
```
```

### Verification 7

Command: `git diff --check`

Expected: no whitespace errors.

Output:
```
```

---

> **[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
  - Completeness: Pass
  - Test coverage: Pass
  - API contract: Pass
  - Code quality: Pass
  - Implementation deviation: Pass
  - Verification trust: Pass
  - Spec conformance: Pass
- **Findings:** None.
- **Routing Signals:** `review_rework_count=3`, `evidence_integrity_failure=false`
- **Next Step:** Archive the active pair, write `complete.log`, and move the completed split task to the 2026/08 task archive while preserving milestone completion metadata for runtime aggregation.
