# BRIEFING — 2026-10-09T03:32:00Z

## Mission
Milestone M2 Iteration 2 Gate Verification and Adversarial Review

## 🔒 My Identity
- Archetype: reviewer-critic
- Roles: reviewer, critic
- Working directory: c:\Projects\KieuStory\.agents\teamwork\reviewer_m2_iter2_1
- Original parent: 97faf5e5-a830-491c-b78c-2af12175badf
- Milestone: M2 Iteration 2 Gate Verification
- Instance: 1 of 1

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Integrity check: actively detect hardcoded test results, fake outputs, bypasses
- Independent verification: execute tests directly and verify all claims

## Current Parent
- Conversation ID: 97faf5e5-a830-491c-b78c-2af12175badf
- Updated: 2026-10-09T03:32:00Z

## Review Scope
- **Files to review**: worker_m2_hygiene_2 remediation, tests/test_m2_hygiene.py, 05_Production_Pipeline/run_shot.py, 05_Production_Pipeline/muse_invpw_driver.py, 04_Assets/
- **Interface contracts**: PROJECT.md, ORIGINAL_REQUEST.md
- **Review criteria**: correctness, hygiene, security/integrity, adversarial robustness

## Key Decisions Made
- Executed independent process scan: confirmed 0 rogue orchestrator / python processes.
- Executed filesystem scan: confirmed 0 Ep01 videos in `04_Assets/videos/` and 0 Ep01 keyframes in `04_Assets/keyframes/`.
- Validated 184 archived MP4 files (2.25 GB, all valid `ftyp` headers) and README.md (9.9 KB).
- Verified 62 character files (all 14 core portraits verified with PIL, 0 corruptions).
- Validated pipeline hardening in `run_shot.py` and `muse_invpw_driver.py` (syntax valid, clean rmdir/mkdir guards).
- Adversarially stress-tested `extract_tail_frame` against missing and corrupt video files; confirmed zero lingering directories.
- Executed full test suites: `test_m2_hygiene.py` (6/6 PASS), `test_tier1_features.py` (65/65 PASS), `test_tier2_boundaries.py` (65/65 PASS), `test_tier3_interactions.py` (15/15 PASS), `test_tier5_pipeline_hardening.py` (20/20 PASS).
- Decision: Verdict is APPROVE.

## Artifact Index
- DISPATCH.md — incoming instructions
- BRIEFING.md — working memory
- progress.md — liveness heartbeat
- handoff.md — final review verdict

## Review Checklist
- **Items reviewed**: worker_m2_hygiene_2 remediation, process table, filesystem state, pipeline hardening code, test_m2_hygiene.py, all asset folders.
- **Verdict**: APPROVE
- **Unverified claims**: none

## Attack Surface
- **Hypotheses tested**:
  - H1: Rogue orchestrator or background render process continues spawning Ep01 files -> Refuted (0 processes running).
  - H2: Keyframe directory `ep01_scene10_shot14` or root keyframe `ep01_scene03_start_720p.png` still present -> Refuted (0 Ep01 keyframes remain).
  - H3: Premature Ep01 videos remain in `04_Assets/videos/` -> Refuted (0 files match `*ep01*`).
  - H4: `run_shot.py` or `muse_invpw_driver.py` create empty keyframe folders on video decode failure -> Tested and refuted (guarded & auto-cleanup verified).
  - H5: Hardcoded test results or mock bypass in `test_m2_hygiene.py` -> Tested and refuted (inspects physical paths, runs PIL decode).
- **Vulnerabilities found**: None.
- **Untested angles**: Hardware-specific GPU rendering via Muse.ai (outside M2 hygiene scope, reserved for M3).