# BRIEFING — 2026-10-01T02:47:00Z

## Mission
Perform independent forensic integrity audit of Milestone M1 Iteration 2 (Level Progression Curve, Game Design Matrix Schema & Seeder, and E2E Tests).

## 🔒 My Identity
- Archetype: forensic_auditor
- Roles: critic, specialist, auditor
- Working directory: c:\Projects\FreeExile\.agents\teamwork\auditor_m1_progression_2
- Original parent: 6f4a2aa2-4315-4660-8cb7-8352a7220c95 (orchestrator_4)
- Target: Milestone M1 Iteration 2

## 🔒 Key Constraints
- Audit-only — do NOT modify implementation code
- Trust NOTHING — verify everything independently
- Provide empirical evidence and raw command outputs for all findings
- Strict binary verdict: CLEAN or INTEGRITY VIOLATION
- Ground truth defined by ORIGINAL_REQUEST.md

## Current Parent
- Conversation ID: 6f4a2aa2-4315-4660-8cb7-8352a7220c95
- Updated: not yet

## Audit Scope
- **Work product**: Milestone M1 Iteration 2 implementation
  - `server/world/level_progression_curve.py`
  - `server/world/game_design_matrix_service.py`
  - `server/world/game_design_matrix_seeder.py`
  - `tests/e2e/test_level_progression_e2e.py`
  - `data/game_design_matrix.db`
- **Profile loaded**: General Project (Forensic Integrity)
- **Audit type**: forensic integrity check

## Audit Progress
- **Phase**: completed
- **Checks completed**:
  - Source inspection: no hardcoded outputs, no facades, no pre-populated artifacts
  - Schema inspection: 13 columns present, all 100 rows genuinely populated, 0 drift vs pure math
  - Strict assertions: line 141 in `test_level_progression_e2e.py` strictly verified
  - E2E tests: 24/24 M1 tests PASSED, 0 xpasses
  - Challenger suites: EXP curve 7/7 PASSED, Database 45/45 PASSED
  - Security audit: PASSED (0 Critical, 0 High)
  - Hygiene audit: PASSED (100% compliant with Hard Cap)
  - Mypy type check: PASSED (0 errors in 4 files)
- **Checks remaining**: None
- **Findings so far**: CLEAN

## Key Decisions Made
- Confirmed mathematical coefficient 0.35 satisfies both $\ge 30\%$ vs 1-98 and $25\%-35\%$ vs lifetime EXP.
- Confirmed all 13 columns in SQLite schema are genuinely populated and verified with SQLite CHECK constraints.
- Confirmed removal of xfail on F02 test cases and strict enforcement on line 141.
- Documented findings in `report.md` and `handoff.md`. Issued binary verdict: CLEAN.

## Artifact Index
- `c:\Projects\FreeExile\.agents\teamwork\auditor_m1_progression_2\DISPATCH.md` — Inbound instructions
- `c:\Projects\FreeExile\.agents\teamwork\auditor_m1_progression_2\BRIEFING.md` — Situational awareness
- `c:\Projects\FreeExile\.agents\teamwork\auditor_m1_progression_2\progress.md` — Liveness heartbeat
- `c:\Projects\FreeExile\.agents\teamwork\auditor_m1_progression_2\report.md` — Forensic audit report
- `c:\Projects\FreeExile\.agents\teamwork\auditor_m1_progression_2\handoff.md` — Final handoff

## Attack Surface
- **Hypotheses tested**:
  - Curve mathematical correctness and bounds at levels 1, 98, 99, 100: Confirmed valid.
  - 13 columns genuine computation and DB storage: Confirmed 0 drift against pure math.
  - Line 141 assertion: Confirmed strictly enforced without relaxation.
  - Determinism and idempotency of seeder: Confirmed 100% deterministic across 6 repeated runs.
  - Database CHECK constraints: Confirmed rejecting invalid levels, negative EXP, and out-of-range penalties.
- **Vulnerabilities found**: None
- **Untested angles**: None within M1 scope

## Loaded Skills
- None specified by orchestrator dispatch