# BRIEFING — 2026-10-09T04:15:00Z

## Mission
Forensic integrity audit for Milestone M1 Gate Verification (Antigravity Critic Gate, test suites, resolve_start_frame_v2).

## 🔒 My Identity
- Archetype: forensic_auditor
- Roles: critic, specialist, auditor
- Working directory: c:\Projects\KieuStory\.agents\teamwork\auditor_m1_1
- Original parent: 97faf5e5-a830-491c-b78c-2af12175badf
- Target: milestone M1

## 🔒 Key Constraints
- Audit-only — do NOT modify implementation code
- Trust NOTHING — verify everything independently
- Ground-truth user constraints from ORIGINAL_REQUEST.md take precedence
- Check for hardcoded test results, facade implementations, fabricated verification outputs, self-certifying tests, execution delegation

## Current Parent
- Conversation ID: 97faf5e5-a830-491c-b78c-2af12175badf
- Updated: 2026-10-09T04:05:30Z

## Audit Scope
- **Work product**: Milestone M1 (antigravity_critic_gate.py, test_critic_gate.py, production_orchestrator.py resolve_start_frame_v2, test_m2_hygiene.py)
- **Profile loaded**: General Project (Forensic Integrity)
- **Audit type**: forensic integrity check

## Audit Progress
- **Phase**: reporting
- **Checks completed**:
  1. Read ORIGINAL_REQUEST.md, orchestrator_1/PROJECT.md, worker_m1_critic_1/handoff.md
  2. Forensic code inspection of 05_Production_Pipeline/antigravity_critic_gate.py
  3. Forensic code inspection of tests/test_critic_gate.py
  4. Forensic code inspection of resolve_start_frame_v2 in 05_Production_Pipeline/production_orchestrator.py
  5. Behavioral verification: pytest execution of test_critic_gate.py (23/23 PASSED)
  6. Behavioral verification: pytest execution of test_m2_hygiene.py (6/6 PASSED)
  7. Regression testing: pytest test_tier1_features.py (65/65 PASSED)
  8. Adversarial edge-case and boundary verification
- **Checks remaining**: None
- **Findings so far**: CLEAN (Zero integrity violations found)

## Attack Surface
- **Hypotheses tested**:
  * Hypothesis 1: Critic gate uses hardcoded return values or dummy facades -> DISPROVEN (real OpenCV/FFprobe/SDK calculations).
  * Hypothesis 2: Tests mock out video processing -> DISPROVEN (tests write synthetic MP4s via cv2.VideoWriter and feed them to real decoding pipeline).
  * Hypothesis 3: resolve_start_frame_v2 still leaks Thúy Kiều portrait or prev_tail on cut -> DISPROVEN (character anchor comparison, prev_tail blocking on cuts, and Kim Trọng safeguard verified).
  * Hypothesis 4: M2 hygiene regressed -> DISPROVEN (6/6 passed, 0 ep01 videos in videos/, 184 in archive).
- **Vulnerabilities found**: None. Code is robust with dual fallback tiers and boundary validation.
- **Untested angles**: Live network MLLM calls without API key fall back gracefully to offline heuristic engine.

## Loaded Skills
- None

## Key Decisions Made
- Concluded Milestone M1 is 100% genuine and fully authenticated.
- Rendered binary verdict: VERDICT: CLEAN.

## Artifact Index
- DISPATCH.md — Audit assignment & instructions
- BRIEFING.md — Persistent memory
- progress.md — Audit execution log
- handoff.md — Final forensic audit verdict report