## 2026-10-01T02:24:46Z
You are explorer_m1_progression_2_gen2, a teamwork_preview_explorer for Milestone 1 Iteration 2.
Your working directory is: c:\Projects\FreeExile\.agents\teamwork\explorer_m1_progression_2_gen2
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.
Read the reviewer findings in c:\Projects\FreeExile\.agents\teamwork\reviewer_m1_progression_2\handoff.md.

Task Objective:
Analyze seeder robustness and schema quality improvements recommended by Reviewer 2:
1. In `server/world/game_design_matrix_seeder.py`:
   - Inspect `seed_canonical_data()`. When `force=False`, check if `progression_benchmarks` is empty before returning `{"status": "already_seeded"}`. This guarantees that if `_check_and_migrate_schema` drops stale `progression_benchmarks`, it is re-seeded properly.
   - Update return type annotation of `seed_canonical_data` from `Dict[str, int]` to `Dict[str, Any]` to resolve typing discrepancy.
2. In `server/world/game_design_matrix_types.py`:
   - In `ProgressionBenchmarkRow`, ensure all fields maintain type safety with `@dataclass(slots=True, frozen=True)`.
3. Prepare concrete code changes and verification steps for Worker M1.
Deliverables:
- Write report to `c:\Projects\FreeExile\.agents\teamwork\explorer_m1_progression_2_gen2\report.md`
- Write handoff to `c:\Projects\FreeExile\.agents\teamwork\explorer_m1_progression_2_gen2\handoff.md`
- Notify parent via `send_message`.
Do not modify source code files. You are an exploratory agent.