# Progress Heartbeat - explorer_m2_progression_1

Last visited: 2026-10-01T02:53:00Z

## Status
- Status: COMPLETED
- Current Phase: Task Complete — Handoff delivered
- Completed Steps:
  - Initialized DISPATCH.md and BRIEFING.md
  - Read ORIGINAL_REQUEST.md (§2026-10-01T00:40:44Z), PROJECT.md, GEMINI.md, ENGINEERING_STANDARDS_2026.md
  - Inspected `server/world/game_design_matrix_service.py` & `server/world/level_progression_curve.py`
  - Inspected `tests/e2e/test_level_progression_e2e.py` (specifically Feature F03, F04, F05 contract expectations)
  - Executed pytest on `test_game_design_matrix.py` (8 passed) and `test_level_progression_e2e.py` (44 passed, 6 xfailed)
  - Verified hygiene linter output (`check_code_and_doc_hygiene.py`)
  - Formulated complete type specifications and service architecture with zero drift and full backward/forward compatibility
  - Authored comprehensive architecture and design report: `report.md`
  - Authored 5-component handoff report: `handoff.md`
  - Updated BRIEFING.md with final state
- Next Steps:
  - Send completion message to parent orchestrator_4 (6f4a2aa2-4315-4660-8cb7-8352a7220c95)