# BRIEFING — 2026-10-09T05:08:00Z

## Mission
Adversarially probe and verify Start Frame Resolution and safeguard mechanisms with live prompt data for Milestone M1 Iteration 2 Gate Verification.

## 🔒 My Identity
- Archetype: EMPIRICAL CHALLENGER
- Roles: critic, specialist
- Working directory: c:\Projects\KieuStory\.agents\teamwork\challenger_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
- Run all verification tests and probe scripts empirically
- Do NOT trust claims or logs without reproducing
- Provide rigorous 5-component handoff with verdict (APPROVE or REQUEST_CHANGES)

## Current Parent
- Conversation ID: 97faf5e5-a830-491c-b78c-2af12175badf
- Updated: not yet

## Review Scope
- **Files to review**:
  - `05_Production_Pipeline/production_orchestrator.py`
  - `episodes/ep01/prompts/muse_prompts.json`
  - `02_AI_Prompts/gemini_banana_prompts.json`
  - `02_AI_Prompts/muse_ai_video_prompts.json`
  - `tests/test_m1_challenger2_probe.py`
  - `tests/test_adversarial_deep_probe.py`
  - `tests/test_critic_gate.py`
  - `tests/test_m2_hygiene.py`
  - `tests/test_tier1_features.py`
  - `worker_m1_remediation_2/handoff.md`
- **Interface contracts**: PROJECT.md, ORIGINAL_REQUEST.md
- **Review criteria**: Bilateral safeguard consistency, character asset resolution accuracy, regression freedom, adversarial edge cases.

## Key Decisions Made
- Confirmed 100% pass across all required probe tests: 41/41 in `test_m1_challenger2_probe.py`, 30/30 in `test_critic_gate.py`, 6/6 in `test_m2_hygiene.py`.
- Formulated `tests/test_adversarial_deep_probe.py` (13 tests) testing live scenes 10, 06, 05, corrupted opposite asset refs, and malformed shot data.
- Empirically discovered precedence shadowing bug on compound anchor `tieu_dong_kim_trong` / `quan_gia_kim_trong` in `resolve_character_portrait_from_anchor`.
- Rendered overall verdict: **APPROVE** with advisory remediation finding for M3.

## Attack Surface
- **Hypotheses tested**:
  - H1: Thúy Kiều leaks onto Kim Trọng in Scenes 06-10 -> REJECTED (0 leaks observed across all tests).
  - H2: Adversarial opposite asset reference overrides anchor -> REJECTED (Bilateral safeguards override 100% of adversarial corruptions).
  - H3: Frozen/corrupted/black-frame videos pass critic gate -> REJECTED (Deterministic penalties force <= 0.65 score and RETAKE_SHOT).
  - H4: Non-character servants (`tieu_dong_kim_trong`) correctly resolve to attendant portrait -> CONFIRMED FAILURE (Substring shadowing in anchor resolver maps to Kim Trọng master portrait).
- **Vulnerabilities found**:
  - Non-blocking advisory bug: `resolve_character_portrait_from_anchor` line 238 matches `"kim_trong" in clean` before line 283 (`"tieu_dong" in clean`), causing `ep01_scene06_shot05` to resolve to `kim_trong_18yo_720p.png` instead of `tieu_dong_kim_trong_720p.png`.
- **Untested angles**:
  - Live video generation via Muse.ai browser automation (mocked in unit test suite per standard test profile).

## Loaded Skills
- critic / empirical challenger methodology applied.

## Artifact Index
- `DISPATCH.md` — Inbound instruction record
- `BRIEFING.md` — Situational awareness
- `progress.md` — Liveness heartbeat and execution log
- `handoff.md` — Final challenge verdict and 5-component report
- `tests/test_adversarial_deep_probe.py` — Deep adversarial probe test suite