# 📋 Code Review Report — v4.0.0 Version Bump & Consensus Report (Job 47e488ee)

- **Reviewer**: `reviewer-hermes-01` (role: reviewer) — note: I am also a participant in the reviewed consensus (my independent SemVer opinion was job `baeb9f1c`, which recommended v4.0.0); this review judges the *implementation* of the bump and the *fidelity* of the consensus synthesis.
- **Reviewed diff**: 10 files, +59/−24 — the 3-way version lockstep bump to v4.0.0 (lib.sh `MAM_VERSION`, 8 SKILL.md frontmatters, VERSIONS.md) plus the new consensus document `.agents/reports/version_upgrade_recommendation.md` (Rev.2, 94 lines)
- **Method**: lockstep verification, full-diff read, live verification of the B-4 prune-command's claimed mechanics against `atomic_dump_yaml`, lockstep test execution, full suite run. No code modified by this review.

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## 1. Verification Evidence

| # | Check | Result |
|---|---|---|
| 1 | **Full test suite** | ✅ **439 passed, 0 failures** (604.8 s) |
| 2 | **Lockstep tests** (`tests/test_version_consistency.py`) | ✅ `test_three_way_version_lockstep` PASSED, `test_mam_version_is_not_env_overridable` PASSED — the release gate the consensus §6.4 required is green |
| 3 | 3-way lockstep live state | ✅ `lib.sh:32 MAM_VERSION="4.0.0"`; all 8 SKILL.md frontmatters `version: 4.0.0`; `VERSIONS.md` header (L9) `v4.0.0`; skill matrix 8 rows all `4.0.0`; **L25 prose sentence updated too** ("...v4.0.0으로 동기화되어 배포됩니다") — the exact line the consensus Rev.2 changelog identified as not regex-covered by the lockstep test, i.e. the known desync trap was manually closed |
| 4 | New `v4.0.0` changelog section | ✅ Present with the project's `⚠️ 동작 변경 및 마이그레이션 안내` convention (B-1…B-5), following the v3.1.0 precedent format |
| 5 | B-4 prune command technical accuracy | ✅ Verified end-to-end against live code: `atomic_dump_yaml <yaml> <<MUT ... MUT` matches the real signature (`lib.sh:1517–1549` — first arg `yaml_path`, mutation read from stdin via `$(cat)` into `AGENT_SESSIONS_MUTATION`); the mutation body executes at module scope inside `atomic_dump_yaml_main()` (atomic_yaml.py:122–125) where `d` is pre-populated from the SQLite-backed state and the mutated `d` is read back from the namespace after `exec` — so the list-comprehension filter in B-4 is exactly the supported mutation idiom. `flock` + `BEGIN IMMEDIATE` + WAL/NFS fallback confirmed at atomic_yaml.py:56–90 |
| 6 | B-4's prune filter correctness | ✅ `s.get('agent') != 'cline' and not str(s.get('name','')).endswith('-cline')` — matches `row_agent`/`agent_of_row` semantics (explicit agent field first, then name suffix); the `endswith('-cline')` arm correctly mirrors `derive_session_name`'s `-<role>-<agent>` convention without colliding with the other 4 agent suffixes |
| 7 | B-2 detection grep | ✅ Pattern `agent: cline\|cline_conversation_id_own\|--agent cline` covers the YAML row key, the own-id key, and the CLI flag — the three surviving artifact classes after the removal |
| 8 | Consensus document fidelity | ✅ Spot-checked against my own archived opinion (`.mam/jobs/baeb9f1c/hermes-reports/report-final.md`): §3 table's summary of my argument ("no deprecation window… MINOR-for-deprecation escape hatch never used; v1.2.0-precedent mirroring") is an accurate paraphrase, not a distortion; job ID `baeb9f1c` correctly cited |
| 9 | Consensus doc's process claims | ✅ The three cited participant jobs (`e0838148`, `baeb9f1c`, `05d8432b`) and the removal review job `20d45d12` all exist in `.mam/jobs/` with briefs/reports; the Rev.2 changelog's two accepted challenge points (line-24 prose, orphaned-row purge) both verified actionable against live code as described |
| 10 | No other version literals | ✅ Remaining `3.1.0` mentions in VERSIONS.md are all inside the historical v3.1.0 changelog entry (correct — history must stay frozen); no other file hardcodes the version |

## 2. Findings

No blocking defects. Non-blocking observations:

1. **[Low — cosmetic]** In the new VERSIONS.md v4.0.0 entry, the "핵심 아키텍처" bullet list retains the 2-Tier/Modal-Contract/Fail-Closed bullets that were already the v3.1.0 highlights alongside the two new v4.0.0 bullets. Defensible as "current architecture" (not a per-release diff), and the two v4.0.0-specific bullets are listed first, but a reader skimming the section could attribute v3.1.0 features to v4.0.0. Cosmetic; no action required.
2. **[Info]** B-3's pre-upgrade purge example (`multi-agent-mux-stop --agent cline --purge-conversation --yes`) is correctly ordered *before* `deploy/update.sh` in the doc — this ordering matters and the consensus doc's Rev.2 analysis (pre-upgrade purge is the only artifact-aware window) is faithfully reflected.
3. **[Info]** B-4's heredoc prune does not delete on-disk cline conversation artifacts — the document says so explicitly ("orphaned, not corrupting anything") — an honest scoping statement, and the right trade given no artifact-resolution path exists post-removal.
4. **[Info]** The consensus doc's `[VERDICT: N/A — consensus/planning artifact]` footer is consistent with how the project handled the analogous cline-deprecation consensus report.

## 3. Risk Assessment

The change surface is documentation + one runtime constant, with the lockstep test as the guardrail — and it passes. The one mechanical risk of this change class (partial lockstep update) is ruled out by both the lockstep test result and my independent live grep of all three version surfaces. The migration content (B-1…B-5) is technically accurate where I could verify it against live code (atomic_dump_yaml contract, agent_of_row behavior, stop's pre-upgrade purge window, update.sh's registry preservation). The consensus document accurately represents the three participant opinions including mine, with correct job citations and no manufactured unanimity beyond what genuinely existed (3/3 v4.0.0).

## 4. Verdict

The bump is complete, lockstep-consistent, test-verified (439/439 + both consistency tests), and the consensus document accurately synthesizes the three independent recommendations with a technically sound, verified implementation checklist. No regression, no omission found.

[VERDICT: PASS]