# BRIEFING — 2026-10-09T05:12:00Z

## Mission
Independent review and adversarial stress-testing of Milestone M1 Iteration 2 Gate Remediation (bilateral and multi-character start-frame safeguard, prompt alignment, test validation).

## 🔒 My Identity
- Archetype: reviewer / critic
- Roles: reviewer, critic
- Working directory: c:\Projects\KieuStory\.agents\teamwork\reviewer_m1_iter2_2
- Original parent: 97faf5e5-a830-491c-b78c-2af12175badf
- Milestone: M1 Iteration 2 Gate Verification
- Instance: 2 of 2

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Actively check for integrity violations (hardcoded test outputs, dummy implementations, shortcuts, fabricated verification, self-certifying work)
- Issue clear verdict: APPROVE or REQUEST_CHANGES

## Current Parent
- Conversation ID: 97faf5e5-a830-491c-b78c-2af12175badf
- Updated: 2026-10-09T05:01:00Z

## Review Scope
- **Files to review**:
  - `c:\Projects\KieuStory\05_Production_Pipeline\production_orchestrator.py`
  - `c:\Projects\KieuStory\episodes\ep01\prompts\muse_prompts.json`
  - `c:\Projects\KieuStory\02_AI_Prompts\muse_ai_video_prompts.json`
  - `tests/test_critic_gate.py`
  - `tests/test_m1_challenger2_probe.py`
  - `tests/test_tier1_features.py`
- **Interface contracts**: PROJECT.md, AGENTS.md, GEMINI.md
- **Review criteria**: Bilateral character safeguard, multi-character coverage, reciprocal protection, prompt alignment, test integrity, robust edge-case handling

## Review Checklist
- **Items reviewed**:
  - `05_Production_Pipeline/production_orchestrator.py`: `get_character_anchor()` (L168-196) and `resolve_start_frame()` (L306-448)
  - `05_Production_Pipeline/antigravity_critic_gate.py`: OfflineHeuristicEngine, schema, defect handling
  - `episodes/ep01/prompts/muse_prompts.json`: Scene 10, Scene 06, Scene 05, Scene 09
  - `02_AI_Prompts/muse_ai_video_prompts.json`: Master synchronization
  - `02_AI_Prompts/gemini_banana_prompts.json`: Key alignment and nested dictionary state
  - `tests/test_critic_gate.py`: 30 tests
  - `tests/test_m1_challenger2_probe.py`: 41 tests
  - `tests/test_tier1_features.py`: 65 tests
- **Verdict**: REQUEST_CHANGES
- **Unverified claims**: Worker claimed in handoff that `is_thuy_van` was enforced across Step A, Step C, and Step D. Code inspection and empirical probe showed `is_thuy_van` was omitted from Step C and Step D, allowing Thúy Kiều leaks when `reference_start_frame` is used.

## Attack Surface
- **Hypotheses tested**:
  - Hypothesis 1: Thúy Vân shots with adversarial `reference_start_frame` pointing to Thúy Kiều. Result: FAILED (leaked Thúy Kiều portrait).
  - Hypothesis 2: Compound character anchor (`kim_trong + thuy_kieu_maiden`) disables `is_kim_trong` safeguard. Result: FAILED (leaked Thúy Kiều portrait when `character_asset_ref` was adversarially corrupted).
  - Hypothesis 3: `resolve_character_portrait_from_anchor` asymmetrically favors Thúy Kiều over Kim Trọng on joint anchors. Result: CONFIRMED.
  - Hypothesis 4: `gemini_banana_prompts.json` has split representation between root keys and `ep01_start_frames`. Result: CONFIRMED.
- **Vulnerabilities found**:
  - Missing `is_thuy_van` in Step C (L409-414) and Step D (L419-432) of `resolve_start_frame()`
  - Negation guard `and "thuy_kieu" not in curr_anchor` disables `is_kim_trong` on two-shots
  - Self-certifying omission in test suite: `test_adversarial_bilateral_safeguards_override` omitted `adv_tv` testing
- **Untested angles**: Runtime performance under concurrent multi-worker rendering.

## Key Decisions Made
- Confirmed test passes on clean suites (136 tests pass).
- Identified critical specification gap where `is_thuy_van` is missing in Step C & Step D.
- Formulated constructive remediation diff for Worker agent.
- Issued formal verdict `REQUEST_CHANGES`.

## Artifact Index
- DISPATCH.md — incoming dispatch instructions
- BRIEFING.md — persistent working memory
- progress.md — liveness heartbeat
- handoff.md — formal review verdict and 5-component report