# Progress — Challenger 1 (CharacterStatAggregator Empirical Verification)

- Last visited: 2026-10-04T09:40:00Z
- Status: Completed empirical verification and stress testing (Verdict: APPROVE)
- Completed:
  - Reviewed implementation code in `server/stats/` and `server/world/server_engine_loop.py`
  - Created and executed adversarial stress test oracle `tests/unit/test_challenger_stat_aggregator_stress.py` (7 tests, all passed)
  - Executed full regression suite: 40 tests passed in 1.25s
  - Empirically audited SQLite database persistence and live AST structure
  - Verified code and doc hygiene compliance: 0 errors
  - Delivered `challenge_report.md` and `handoff.md` with explicit APPROVE verdict
- Next Steps: Send completion message to parent orchestrator.