<!-- task=m-iop-agent-cli-runtime/20+13,17_project_log_journal plan=3 tag=REVIEW_API -->

# Code Review Reference - REVIEW_API

> **[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.
> 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=2026-07-30
task=m-iop-agent-cli-runtime/20+13,17_project_log_journal, plan=3, tag=REVIEW_API

## Archive Evidence Snapshot

- Prior task: `agent-task/m-iop-agent-cli-runtime/20+13,17_project_log_journal`
- Predicted current-loop evidence: `agent-task/m-iop-agent-cli-runtime/20+13,17_project_log_journal/plan_cloud_G09_2.log` and `agent-task/m-iop-agent-cli-runtime/20+13,17_project_log_journal/code_review_cloud_G09_2.log`
- Verdict: FAIL
- Findings: two Required findings covering non-exclusive archive ordinal materialization and untyped malformed-intent rejection; no Suggested or Nit findings
- Affected files: `apps/agent/internal/projectlog/store.go`, `apps/agent/internal/projectlog/store_test.go`
- Verification evidence: all declared focused, package, race, vet, formatting, and diff commands passed; reviewer-only reproducers showed malformed intent does not satisfy `errors.Is(err, ErrArchiveConflict)` and a concurrent writer can corrupt an ordinal after another writer prunes the journal
- Roadmap carryover: this remains an S12 `project-logs` journal subset and does not claim the Milestone Task on PASS; EventSink mapping, WORK_LOG projection, and the complete dynamic frontier remain in later children

## 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-G09.md` → `code_review_cloud_G09_3.log` and `PLAN-cloud-G09.md` → `plan_cloud_G09_3.log`.
3. If PASS, write `complete.log` and move active task directory to `agent-task/archive/YYYY/MM/m-iop-agent-cli-runtime/20+13,17_project_log_journal/`. 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>`, report completion event metadata. Roadmap state check and `update-roadmap` calls are runtime responsibilities.
5. Check applicable `Review-Only Checklist` items at the final `.log` location before reporting.

---

## Implementation Item Completion

| Item | Status |
|------|---------|
| REVIEW_API-1 Atomic archive ordinal ownership | [x] |
| REVIEW_API-2 Typed malformed-intent conflict | [x] |

## Implementation Checklist

- [x] Serialize or fence archive ordinal materialization and reconciliation across store instances so concurrent callers reuse one immutable committed set, with a deterministic overlap regression.
- [x] Return typed archive conflict for syntactically malformed persisted intent and prove journal/artifact no-mutation behavior.
- [x] Run fresh focused, package, race, vet, formatting, and diff verification.
- [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_G09_3.log`.
- [x] Archive active `PLAN-*-G??.md` to `plan_cloud_G09_3.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`.
- [ ] If PASS, write `complete.log` based on `agent-ops/skills/common/code-review/templates/complete-log-template.md` and leave no active `.md` files.
- [ ] If PASS, move active task directory `agent-task/m-iop-agent-cli-runtime/20+13,17_project_log_journal/` to `agent-task/archive/YYYY/MM/m-iop-agent-cli-runtime/20+13,17_project_log_journal/` and update this checklist at the final archive path.
- [ ] If PASS and task group is `m-<milestone-slug>`, report completion event metadata for runtime, without modifying roadmap or directly calling `update-roadmap`.
- [ ] If PASS for split work, remove empty active parent `agent-task/m-iop-agent-cli-runtime/` or verify it was kept due to remaining siblings/files.
- [x] 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

- Added one restrictive `.archive.lock` advisory-lock file inside the project/workspace archive directory but outside every ordinal artifact set.
- `Archive` invokes the deterministic pre-lock test hook before acquiring the lock, then holds exclusive ownership across journal admission, artifact materialization, verification, and CAS prune.
- `Reconcile` uses the same lock across directory scanning, missing-artifact reconstruction, verification, and CAS prune.
- The overlap regression captures the first caller's complete committed bytes before cleanup, starts a second Store at the pre-lock boundary, and proves both calls plus a later reconcile preserve exactly those bytes without timing sleeps.
- Malformed persisted intent JSON wraps `ErrArchiveConflict` while retaining the decoder detail in the error message. Archive and Reconcile regressions prove the malformed bytes, sibling artifacts, and journal revision are unchanged.
- No record schema, manifest schema, contract, SDD, roadmap, or shared `agentstate.Store` behavior changed. The active spec index has no matching standalone project-log spec, so no spec update was required.
- Verification preflight resolved `/config/.local/bin/go` to `/config/opt/go/bin/go`, reported `go version go1.26.2 linux/arm64`, and used `GOROOT=/config/opt/go` against the intentional shared dirty checkout.

## Reviewer Checkpoints

- Archive and Reconcile use the same project/workspace archive lock across distinct Store instances and hold ownership through artifact verification/reconstruction and journal prune.
- Two overlapping Archive calls converge on one immutable intent/JSONL/timeline/manifest set; no late writer can corrupt the ordinal after journal cleanup.
- Malformed existing intent content returns typed `ErrArchiveConflict` and remains unchanged with the exact journal retained.
- Sequential retry byte identity, persisted journal validation, and concurrent suffix preservation remain covered.
- Fresh focused, package, race, vet, formatting, and diff evidence matches the implementation.

## Verification Results

> Run every command exactly as written. Paste actual stdout/stderr and exit status below its command. Any replacement command requires an entry in `Deviations from Plan`.

### REVIEW_API-1 Atomic Archive Ordinal Ownership

```bash
go test -count=1 ./apps/agent/internal/projectlog -run 'TestArchiveConcurrentCallsShareImmutableOrdinal|TestArchiveRetryReusesCommittedArtifacts|TestReconcilePreservesConcurrentAppend'
```

```text
ok  	iop/apps/agent/internal/projectlog	0.069s
exit status: 0
```

### REVIEW_API-2 Typed Malformed-Intent Conflict

```bash
go test -count=1 ./apps/agent/internal/projectlog -run 'TestArchiveRejectsPreCleanupArtifactDrift|TestReconcileRejectsCommittedArtifactDrift'
```

```text
ok  	iop/apps/agent/internal/projectlog	0.166s
exit status: 0
```

### Final Verification

```bash
gofmt -w apps/agent/internal/projectlog/store.go apps/agent/internal/projectlog/store_test.go
go test -count=1 ./apps/agent/internal/projectlog -run 'TestStore|TestArchive|TestReconcile'
go test -count=1 ./apps/agent/internal/projectlog
go test -count=1 -race ./apps/agent/internal/projectlog ./packages/go/agentstate
go vet ./apps/agent/internal/projectlog
test -z "$(gofmt -d apps/agent/internal/projectlog/store.go apps/agent/internal/projectlog/store_test.go)"
git diff --check
```

```text
gofmt -w apps/agent/internal/projectlog/store.go apps/agent/internal/projectlog/store_test.go
stdout/stderr: empty
exit status: 0

go test -count=1 ./apps/agent/internal/projectlog -run 'TestStore|TestArchive|TestReconcile'
ok  	iop/apps/agent/internal/projectlog	0.804s
exit status: 0

go test -count=1 ./apps/agent/internal/projectlog
ok  	iop/apps/agent/internal/projectlog	0.678s
exit status: 0

go test -count=1 -race ./apps/agent/internal/projectlog ./packages/go/agentstate
ok  	iop/apps/agent/internal/projectlog	1.966s
ok  	iop/packages/go/agentstate	1.067s
exit status: 0

go vet ./apps/agent/internal/projectlog
stdout/stderr: empty
exit status: 0

test -z "$(gofmt -d apps/agent/internal/projectlog/store.go apps/agent/internal/projectlog/store_test.go)"
stdout/stderr: empty
exit status: 0

git diff --check
stdout/stderr: empty
exit status: 0
```

---

> **[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) |
| Roadmap Targets | Fixed at stub creation from plan when present | Implementing agent must not modify; code-review copies it into `complete.log` as `Roadmap Completion` only on PASS |
| 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: FAIL
- Dimension Assessment:
  - Correctness: Fail
  - Completeness: Fail
  - Test Coverage: Fail
  - API Contract: Fail
  - Code Quality: Pass
  - Implementation Deviation: Fail
  - Verification Trust: Pass
  - Spec Conformance: Fail
- Findings:
  - Required — `apps/agent/internal/projectlog/store.go:517`: `verifyArchiveArtifacts` returns the raw `decodeJSONL` error when persisted JSONL is syntactically malformed but its bytes still match the checksum recorded by a valid intent. A focused reviewer reproducer changed the pending JSONL to `{not-json`, updated only the intent checksum to that exact payload, and observed `projectlog: decode jsonl: ...`; `errors.Is(err, ErrArchiveConflict)` was false. This violates the verifier's typed-conflict contract and leaves one corruption variant outside the fail-closed classification fixed for malformed intent. Wrap JSONL decode failures with `ErrArchiveConflict`, retain the decoder detail, and add Archive/Reconcile regressions that prove the exact artifact set and journal revision remain unchanged.
- Routing Signals:
  - review_rework_count=4
  - evidence_integrity_failure=false
- Next Step: Prepare and implement a focused follow-up plan for typed malformed-JSONL conflict handling and no-mutation coverage, then rerun the corruption, archive/reconcile, package, and race suites.
