# BRIEFING — 2026-10-09T09:08:00Z

## Mission
Forensic integrity audit for Milestone M4 Iteration 2 Gate Verification (Assembly, Audio Mastering, Workspace Hygiene & Probe Fixes).

## 🔒 My Identity
- Archetype: forensic_auditor
- Roles: [critic, specialist, auditor]
- Working directory: c:\Projects\KieuStory\.agents\teamwork\auditor_m4_iter2_1
- Original parent: 97faf5e5-a830-491c-b78c-2af12175badf
- Target: Milestone M4 Iteration 2 Gate Verification

## 🔒 Key Constraints
- Audit-only — do NOT modify implementation code
- Trust NOTHING — verify everything independently
- Primary ground-truth: ORIGINAL_REQUEST.md takes precedence over all other documents
- Binary verdict required: CLEAN or INTEGRITY VIOLATION with raw proof

## Current Parent
- Conversation ID: 97faf5e5-a830-491c-b78c-2af12175badf
- Updated: 2026-10-09T09:08:00Z

## Audit Scope
- **Work product**: Milestone M4 Iteration 2 remediation deliverables:
  * `05_Production_Pipeline/production_orchestrator.py` (lines 105-110, 1170-1171, concat logic)
  * `tools/update_banana_turnaround_prompts.py` & `tools/manage_turnaround_sheets.py`
  * `02_AI_Prompts/gemini_banana_prompts.json`
  * `04_Assets/characters/` (count, git status, 14 core portraits)
  * `04_Assets/turnaround_sheets/` (55 relocated files)
  * `04_Assets/archive/ep01_legacy_v1/` (184 legacy video files + README.md)
  * Test suites (7 suites, 99 tests total)
- **Profile loaded**: General Project (Development Mode per ORIGINAL_REQUEST.md)
- **Audit type**: forensic integrity check

## Audit Progress
- **Phase**: reporting
- **Checks completed**:
  1. Source code authenticity (get_ffprobe, zero cv2.VideoWriter, tool script paths, json prompt paths) — PASS
  2. Workspace & Asset integrity (character file count = 62, git ls-files match, 14 core portraits intact, 55 turnaround files in place, 184 archive videos intact) — PASS
  3. Test suite empirical execution (all 7 suites: 99/99 passed) — PASS
  4. Integrity forensics (zero facades, zero hardcoded test stubs, zero fabricated artifacts) — PASS
- **Checks remaining**: None
- **Findings so far**: CLEAN — All remediation items verified empirically without integrity violations.

## Key Decisions Made
- Confirmed genuine canonical `get_ffprobe` implementation in `05_Production_Pipeline/production_orchestrator.py`.
- Verified that `04_Assets/characters/` invariant (62 files) is fully restored on disk and git status is clean.
- Verified 55 model sheets relocated to `04_Assets/turnaround_sheets/` without file destruction.
- Verified 99/99 tests pass across 7 test suites on physical disk.

## Artifact Index
- `DISPATCH.md` — Audit assignment
- `BRIEFING.md` — Situational awareness & persistent memory
- `progress.md` — Liveness & step tracking
- `handoff.md` — Final forensic audit verdict report (VERDICT: CLEAN)

## Attack Surface
- **Hypotheses tested**:
  * Did worker mock or hardcode `get_ffprobe` or `has_a` logic? -> Rejected; genuine probe with fallback silence synthesis.
  * Is `04_Assets/characters/` truly 62 files matching `git ls-files` without damaged files? -> Confirmed; 62 on disk, 62 in git, clean status.
  * Are the 14 core character portraits genuinely intact with matching dimensions and sizes > 500KB? -> Confirmed; all 14 portraits verified (sizes > 1.1MB, valid PNG).
  * Are all 55 turnaround sheets genuinely relocated to `04_Assets/turnaround_sheets/`? -> Confirmed; 55 files exist in `04_Assets/turnaround_sheets/`.
  * Did any test suite get modified to fake pass or suppress failures? -> Rejected; all 7 suites run real logic and pass.
  * Does `cv2.VideoWriter` exist anywhere in concat paths? -> Rejected; 0 occurrences in production pipeline concat.
- **Vulnerabilities found**: None remaining in Milestone M4 Iteration 2 deliverables.
- **Untested angles**: None within M4 scope.

## Loaded Skills
- None requested by dispatch.