# BRIEFING — 2026-10-02T02:40:00Z

## Mission
Forensic integrity audit of Milestone 2 (Asset Pipeline: 30 Dark Fantasy Map Styles) in FreeExile.

## 🔒 My Identity
- Archetype: forensic_auditor
- Roles: critic, specialist, auditor
- Working directory: c:\Projects\FreeExile\.agents\teamwork\auditor_m2
- Original parent: 407bb748-17c2-4835-a44a-d76c8299151f
- Target: Milestone 2 (R2: Waypoint Safe Radius & Healing)
- Target (Current): Milestone 2 (Asset Pipeline: 30 Dark Fantasy Map Styles)
- Parent (Current): 327366ba-dd05-4805-b53b-659a199b1450 (orchestrator_14)

## 🔒 Key Constraints
- Audit-only — do NOT modify implementation code
- Trust NOTHING — verify everything independently
- ORIGINAL_REQUEST.md takes precedence over dispatch instructions
- Verify all claims empirically with raw tool output
- Binary verdict: CLEAN or INTEGRITY VIOLATION; any failure mandates rejection
- Mode: Development Mode (per ORIGINAL_REQUEST.md section ## 2026-10-02T02:00:04Z: "Integrity mode: development")

## Current Parent
- Conversation ID: 327366ba-dd05-4805-b53b-659a199b1450
- Updated: 2026-10-02T02:33:10Z

## Audit Scope
- **Work product**: Milestone 2 changes by worker_m2:
  - `client/webapp/assets/map/styles/**` (30 style folders, 360 PNG assets)
  - `tools/asset_pipeline/generate_30_map_styles_assets.py` (Procedural texture synthesizer)
  - `tools/asset_pipeline/m4_normal_utils.py` (Sobel tangent normal generator)
- **Profile loaded**: General Project
- **Audit type**: forensic integrity check

## Audit Progress
- **Phase**: reporting
- **Checks completed**:
  - Received dispatch and recorded in DISPATCH.md
  - Verified ground truth constraints in ORIGINAL_REQUEST.md (§ 2026-10-02T02:00:04Z)
  - Source code analysis of `generate_30_map_styles_assets.py`: genuine multi-octave harmonic noise and Worley cellular distance edge cracking
  - Empirical verification of all 360 files in `client/webapp/assets/map/styles/`:
    - File counts: exactly 30 style folders, each with 9 root files + 3 props = 360 files
    - Dimensions: floor/path/liquid 128x64, wall 128x128, props 192x64, individual props 64x64
    - Shannon entropy on visible pixels: min 2.17 bits, mean 4.22 bits, max 6.61 bits (zero solid fills or 1x1 stubs)
    - Normal maps: 120 normal files analyzed; R_std mean 19.91, G_std mean 28.16, B_mean 247.91 (> 128.0), non-flat pixel % mean 68.13% (zero flat blue planes)
    - Uniqueness: 100% unique SHA-256 hashes across all 30 styles for all asset categories
    - Reproducibility: 100% bit-for-bit identical regeneration in temporary directory
  - Code hygiene: `generate_30_map_styles_assets.py` is 307 lines (<= 350 soft cap); `tools/lint/check_code_and_doc_hygiene.py --strict` passed with 0 hard cap violations
  - Automated tests: `test_map_style_assets_integrity.py` 249/249 pass, other map style tests 335/335 pass, asset pipeline tests 37/37 pass
- **Checks remaining**: None
- **Findings so far**: CLEAN

## Attack Surface
- **Hypotheses tested**:
  - Are textures solid color fills or 1x1 stubs? REJECTED (min visible entropy 2.17 bits, unique colors up to 199/tile).
  - Are normal maps flat blue planes (128, 128, 255)? REJECTED (mean non-flat pixels 68.13%, R_std mean 19.91, G_std mean 28.16).
  - Are different biomes copies of a single template? REJECTED (100% distinct SHA-256 hashes across all 30 biomes).
  - Is the generation reproducible or random unrepeatable noise? REJECTED (reproducibility verified 360/360 bit-for-bit identical).
- **Vulnerabilities found**: None.
- **Untested angles**: None within Milestone 2 scope.

## Loaded Skills
- None

## Key Decisions Made
- Concluded audit with unambiguous binary verdict: CLEAN.

## Artifact Index
- DISPATCH.md — audit instructions
- BRIEFING.md — working memory
- progress.md — liveness tracking
- handoff.md — final forensic report