## 2026-10-01T00:50:51Z
You are explorer_m1_progression_3, a teamwork_preview_explorer.
Your working directory is: c:\Projects\FreeExile\.agents\teamwork\explorer_m1_progression_3
Your parent is: orchestrator_4 (conversation ID: 6f4a2aa2-4315-4660-8cb7-8352a7220c95)

Read the authoritative requirements in c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md under section ## 2026-10-01T00:40:44Z.
Read the project architecture in c:\Projects\FreeExile\.agents\teamwork\orchestrator_4\PROJECT.md.
Also read survey findings in `c:\Projects\FreeExile\.agents\teamwork\explorer_survey_balance_1\report.md`.

Task Objective:
Analyze the verification, monotonicity validation, and integrity testing for Milestone 1:
1. Examine `server/world/game_design_matrix_service.py` (`validate_game_design_integrity()` lines 240-250) and `tools/lint/verify_game_design_matrix.py`.
2. Verify how the monotonicity check (`target_exp > prev_xp`) works and how `cumulative_exp` maps to `target_exp` to guarantee zero drift.
3. Formulate the verification command and test cases for Worker M1 and Reviewers/Challengers.
4. Check compatibility with existing unit test `tests/unit/test_game_design_matrix.py`.
Deliverables:
- Write findings to `c:\Projects\FreeExile\.agents\teamwork\explorer_m1_progression_3\report.md`
- Write handoff to `c:\Projects\FreeExile\.agents\teamwork\explorer_m1_progression_3\handoff.md`
- Notify parent via `send_message`.
Do not modify source code.