# BRIEFING — 2026-10-09T04:06:00Z

## Mission
Adversarial empirical gate verification of Milestone M1 (classifier, start frame resolution, prompt sync, hygiene test suite).

## 🔒 My Identity
- Archetype: challenger
- Roles: critic, specialist
- Working directory: c:\Projects\KieuStory\.agents\teamwork\challenger_m1_2
- Original parent: 97faf5e5-a830-491c-b78c-2af12175badf
- Milestone: M1 Gate Verification
- Instance: 2 of 2

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Empirical verification required: must run code and tests, not trust claims
- No source code, tests, or data in .agents/teamwork/ directory

## Current Parent
- Conversation ID: 97faf5e5-a830-491c-b78c-2af12175badf
- Updated: 2026-10-09T04:12:00Z

## Review Scope
- **Files to review**: 05_Production_Pipeline/continuity_classifier.py, 05_Production_Pipeline/production_orchestrator.py, 05_Production_Pipeline/episode_manager.py, tests/test_critic_gate.py, tests/test_m2_hygiene.py, episodes/ep01/
- **Interface contracts**: c:\Projects\KieuStory\.agents\teamwork\orchestrator_1\PROJECT.md
- **Review criteria**: correctness, empirical validation of classifier, start frame resolution, prompt synchronization, regression test suite

## Key Decisions Made
- Created and executed empirical test probe in `tests/test_m1_challenger2_probe.py` (41/41 passing).
- Confirmed Shot 01 openers across Scenes 01 to 10 are 100% CINEMATIC_CUT and zero tail frame chaining.
- Discovered 3 Kim Trọng shots in Scene 06 (`shot06`, `shot10`, `shot12`) leaking Thúy Kiều portrait due to missing `character_asset_ref` and mismatched Banana prompts.
- Discovered 2 Vương Quan shots in Scene 05 (`shot16`, `shot24`) leaking Thúy Kiều portrait due to missing `character_asset_ref` and `thuy_kieu_maiden` banana anchor.
- Confirmed `episode_manager.py --sync-to-master` synchronizes 1142 shots from 6 episodes into master registries.
- Issuing conditional REQUEST_CHANGES verdict with precise remediation recipe for prompt asset references.

## Artifact Index
- DISPATCH.md — Incoming dispatch record
- BRIEFING.md — Situational awareness and identity
- progress.md — Liveness heartbeat
- tests/test_m1_challenger2_probe.py — 41-test empirical challenger probe
- handoff.md — Comprehensive challenge report and verdict

## Attack Surface
- **Hypotheses tested**:
  * Hypothesis 1: Scene openers (shot 01) are always CINEMATIC_CUT and never chain tail frames -> CONFIRMED (10/10 scenes pass).
  * Hypothesis 2: Kim Trọng shots in Scenes 06 to 10 never return Thúy Kiều -> PARTIALLY FALSIFIED. Scenes 07, 08, 09, 10 pass, but Scene 06 shots 06, 10, 12 return Thúy Kiều!
  * Hypothesis 3: Vương Quan and Vương Ông shots never return Thúy Kiều -> PARTIALLY FALSIFIED. Scene 02 and clean shots pass, but Scene 05 shots 16 and 24 return Thúy Kiều!
  * Hypothesis 4: Prompt sync is idempotent and preserves Kim Trọng fixes -> CONFIRMED (1142 shots synced, 11 fixes present in master).
- **Vulnerabilities found**:
  * Vuln 1 (High): `ep01_scene06_shot06`, `ep01_scene06_shot10`, `ep01_scene06_shot12` resolve to `thuy_kieu_maiden_16yo_720p.png`.
  * Vuln 2 (High): `ep01_scene05_shot16`, `ep01_scene05_shot24` resolve to `thuy_kieu_maiden_16yo_720p.png`.
  * Vuln 3 (Medium): `ep01_scene10_shot03`, `shot06`, `shot11`, `shot12` (Thúy Kiều shots) were assigned `character_asset_ref = kim_trong`.
- **Untested angles**:
  * Full video rendering pipeline with active Muse.ai workers (belongs to M3).

## Loaded Skills
- None