# BRIEFING — 2026-10-01T02:44:00Z

## Mission
Review and adversarially challenge Milestone M1 Iteration 2 changes (level 99 delta math cliff, E2E test oracle/assertion updates, hygiene & design matrix compliance).

## 🔒 My Identity
- Archetype: teamwork_preview_reviewer
- Roles: reviewer, critic
- Working directory: c:\Projects\FreeExile\.agents\teamwork\reviewer_m1_progression_1_gen2
- Original parent: 6f4a2aa2-4315-4660-8cb7-8352a7220c95
- Milestone: M1 Iteration 2
- Instance: 1 of 1

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Actively check for integrity violations (hardcoding, shortcuts, facade implementations, fake verification)
- Evidence-based review and adversarial challenge
- Provide clear verdict: APPROVE or REQUEST_CHANGES

## Current Parent
- Conversation ID: 6f4a2aa2-4315-4660-8cb7-8352a7220c95
- Updated: 2026-10-01T02:40:00Z

## Review Scope
- **Files to review**:
  - `server/world/level_progression_curve.py`
  - `tests/e2e/test_level_progression_e2e.py`
  - `server/world/game_design_matrix_seeder.py`
  - `server/world/game_design_matrix_service.py`
  - `c:\Projects\FreeExile\.agents\teamwork\worker_m1_progression_2\handoff.md`
- **Interface contracts**:
  - `c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md` (## 2026-10-01T00:40:44Z)
  - `c:\Projects\FreeExile\.agents\teamwork\orchestrator_4\PROJECT.md`
- **Review criteria**: Correctness, integrity, conformance to math specifications (P04 / 35% cliff), test assertions, hygiene.

## Review Checklist
- **Items reviewed**:
  - `server/world/level_progression_curve.py:70` (`deltas[99] = int(math.floor(0.35 * sum_1_98))`) -> VERIFIED
  - `tests/e2e/test_level_progression_e2e.py:54,141` (oracle 0.35, assert 0.25 <= ratio <= 0.35) -> VERIFIED
  - `python tools/lint/verify_game_design_matrix.py --sync` -> VERIFIED (100% in sync)
  - `pytest tests/unit/test_game_design_matrix.py` -> VERIFIED (8 passed)
  - `pytest tests/e2e/test_level_progression_e2e.py -k "test_f01 or test_f02 or test_f04"` -> VERIFIED (24 passed)
  - `python tools/lint/check_code_and_doc_hygiene.py --strict` -> VERIFIED (0 errors)
  - `python .agents/teamwork/challenger_m1_progression_1/challenge_exp_curve.py` -> VERIFIED (APPROVED)
  - Mypy typing -> VERIFIED (0 errors)
- **Verdict**: APPROVE
- **Unverified claims**: None (100% verified via CLI)

## Attack Surface
- **Hypotheses tested**:
  - Monotonicity across 100 levels -> 0 violations
  - Level 1-20 EXP ratio < 0.1% -> 0.0113% (PASS)
  - Level 99 delta ratio in [25%, 35%] lifetime & >= 30% of 1-98 -> 25.926% & 35.0% (PASS)
  - Integer overflow / floating point precision -> Safe in 64-bit int and float53 (PASS)
  - Database schema & drift -> 13 columns, 100 rows, 0 drift (PASS)
- **Vulnerabilities found**: None
- **Untested angles**: None within M1 scope

## Key Decisions Made
- Conducted full independent reproduction of test suite, challenger harness, and database checks.
- Confirmed zero integrity violations.
- Issued verdict: APPROVE.

## Artifact Index
- `c:\Projects\FreeExile\.agents\teamwork\reviewer_m1_progression_1_gen2\report.md` — Detailed review report
- `c:\Projects\FreeExile\.agents\teamwork\reviewer_m1_progression_1_gen2\handoff.md` — Handoff report
- `c:\Projects\FreeExile\.agents\teamwork\reviewer_m1_progression_1_gen2\DISPATCH.md` — Inbound message log
- `c:\Projects\FreeExile\.agents\teamwork\reviewer_m1_progression_1_gen2\progress.md` — Heartbeat and status