# BRIEFING — 2026-10-09T07:40:00Z

## Mission
Perform rigorous forensic integrity audit and gate verification for Milestone M3 Iteration 3 deliverables.

## 🔒 My Identity
- Archetype: forensic_auditor
- Roles: critic, specialist, auditor
- Working directory: c:\Projects\KieuStory\.agents\teamwork\auditor_m3_iter3_1
- Original parent: 97faf5e5-a830-491c-b78c-2af12175badf
- Target: Milestone M3 Iteration 3 Gate Verification

## 🔒 Key Constraints
- Audit-only — do NOT modify implementation code
- Trust NOTHING — verify everything independently with empirical raw outputs
- ORIGINAL_REQUEST.md takes precedence over dispatch instructions if any contradiction arises
- Integrity Mode: development (from ORIGINAL_REQUEST.md: Development Mode rules apply, catch facades, hardcoding, fabricated outputs, test bypasses)
- Deliver binary verdict in handoff.md: "VERDICT: CLEAN" or "VERDICT: INTEGRITY VIOLATION"
- Must use send_message to report findings and completion to caller (97faf5e5-a830-491c-b78c-2af12175badf)

## Current Parent
- Conversation ID: 97faf5e5-a830-491c-b78c-2af12175badf
- Updated: 2026-10-09T07:40:00Z

## Audit Scope
- **Work product**: Milestone M3 Iteration 3 remediation deliverables:
  - `05_Production_Pipeline/production_orchestrator.py` (`classify_shot_take`, `resolve_start_frame_v2`, `batch_render_scene`)
  - `02_AI_Prompts/gemini_banana_prompts.json` and `episodes/ep01/prompts/banana_prompts.json` (dual bucket prompt synchronization)
  - `tests/test_m3_challenger1_probe.py` (actor switch probe & simulated tail frame tests)
- **Profile loaded**: General Project (Development Mode per ORIGINAL_REQUEST.md)
- **Audit type**: Forensic integrity check / Milestone M3 gate verification

## Audit Progress
- **Phase**: reporting
- **Checks completed**:
  - Source code analysis of `production_orchestrator.py`: confirmed authentic algorithmic classification, `_char_group` categorical logic, genuine defense-in-depth bilateral checks, and strict scene gate abort at line 972.
  - Dual-bucket prompt inspection: verified `ep01_scene03_shot03`, `ep01_scene03_shot05`, `ep01_scene02_shot10`, `ep01_scene08_shot08` in both `02_AI_Prompts/gemini_banana_prompts.json` and `episodes/ep01/prompts/banana_prompts.json` (top-level and `ep01_start_frames` buckets).
  - Anti-cheat & Facade analysis: 0 hardcoded test shot IDs, 0 dummy returns, 0 pre-populated logs.
  - Test Suite execution on physical disk:
    * `tests/test_m3_challenger1_probe.py`: 12/12 PASS (16.52s)
    * `tests/test_production_pipeline_m3.py`: 16/16 PASS (5.84s)
    * `tests/test_critic_gate.py`: 30/30 PASS (11.32s)
    * `tests/test_m2_hygiene.py`: 6/6 PASS (0.15s)
    * `tests/test_m1_challenger2_probe.py`: 41/41 PASS (0.72s)
    * `tests/test_tier1_features.py -k "not test_render"`: 65/65 PASS (3.11s)
    * Total test executions: 170 passed, 0 failed.
  - Adversarial stress testing: Verified all 140 shot transitions across Scenes 01 to 10 uphold continuity contracts with 0 face-leakage violations, and confirmed `batch_render_scene` strict abort upon unapproved verdict.
- **Checks remaining**: None. Ready for verdict delivery.
- **Findings so far**: CLEAN — No integrity violations found.

## Key Decisions Made
- Confirmed development integrity mode per ORIGINAL_REQUEST.md.
- Re-ran all test suites independently on physical disk.
- Executed empirical adversarial transition verification across all 140 shots.

## Artifact Index
- `c:\Projects\KieuStory\.agents\teamwork\auditor_m3_iter3_1\DISPATCH.md` — Dispatch instructions
- `c:\Projects\KieuStory\.agents\teamwork\auditor_m3_iter3_1\BRIEFING.md` — Situational awareness
- `c:\Projects\KieuStory\.agents\teamwork\auditor_m3_iter3_1\progress.md` — Liveness heartbeat & step log
- `c:\Projects\KieuStory\.agents\teamwork\auditor_m3_iter3_1\handoff.md` — Final audit report

## Attack Surface
- **Hypotheses tested**:
  * Hypothesis 1: `classify_shot_take` might have hardcoded shot IDs for test cases. Result: REFUTED. Zero hardcoded shot IDs.
  * Hypothesis 2: Dual-bucket prompt synchronization might have missed one of the files. Result: REFUTED. Both files match across both buckets.
  * Hypothesis 3: `resolve_start_frame_v2` bilateral safeguards could leak a physical tail frame if forced. Result: REFUTED. Safeguards detect actor change and drop tail frame to resolve character portrait instead.
  * Hypothesis 4: `batch_render_scene` might ignore unapproved scene verdicts. Result: REFUTED. Line 972 strictly returns False.
- **Vulnerabilities found**: None.
- **Untested angles**: Physical live rendering via Meta Muse browser session (tested via dry_run and OpenCV mocks in test harness, as intended by test suite architecture).

## Loaded Skills
None loaded.