{
  "track_id": "cruft_elimination_20260627",
  "name": "C11/Python Type Promotion Mandate - Cruft Elimination",
  "type": "refactor",
  "scope": {
    "new_files": [
      "scripts/audit_boundary_layer.py",
      "tests/test_boundary_layer.py",
      "tests/test_metadata_fat_struct.py",
      "tests/test_project_context.py",
      "docs/reports/boundary_layer_20260628.md",
      "docs/reports/TRACK_COMPLETION_cruft_elimination_20260627.md"
    ],
    "modified_files": [
      "src/type_aliases.py",
      "src/models.py",
      "src/app_controller.py",
      "src/gui_2.py",
      "src/aggregate.py",
      "src/rag_engine.py",
      "src/multi_agent_conductor.py",
      "src/mcp_client.py",
      "src/ai_client.py",
      "src/project_manager.py"
    ],
    "deleted_files": []
  },
  "blocked_by": [
    "type_alias_unfuck_20260626 (SHIPPED, merged to master @ 88a1bdcb)",
    "metadata_promotion_20260624 (SHIPPED)"
  ],
  "blocks": [],
  "pre_existing_failures_remaining": [],
  "deferred_to_followup_tracks": [],
  "verification_criteria": [
    "VC1: Metadata is @dataclass(frozen=True, slots=True) (typed fat struct)",
    "VC2: Zero TypeAlias = dict[str, Any] for Metadata",
    "VC3: Zero dict[str, Any] parameter types in internal files",
    "VC4: Zero Any parameter types in internal files",
    "VC5: Zero Optional[T] return types",
    "VC6: Zero hasattr(f, ...) entity dispatch checks",
    "VC7: self.files is always List[FileItem]",
    "VC8: flat_config returns typed ProjectContext",
    "VC9: rag_engine.search() returns List[RAGChunk]",
    "VC10: All 7 audit gates pass --strict",
    "VC11: 10/11 batched test tiers PASS",
    "VC12: Effective codepaths < 1e+18",
    "VC13: Boundary layer audit written",
    "VC14: The 12 per-aggregate dataclasses used at their specific paths"
  ],
  "estimated_effort": {
    "method": "scope (per workflow.md Tier 1 Track Initialization Rules). NO day estimates.",
    "scope": "9 phases, ~14 sites, 12-file scope, 5-7 atomic commits"
  },
  "risk_register": [
    {
      "id": "R1",
      "likelihood": "medium",
      "description": "Implementation may be larger than the spec suggests (defensive isinstance checks scattered throughout)"
    },
    {
      "id": "R2",
      "likelihood": "low",
      "description": "Test regressions from signature changes; FIX-IF-FAILS protocol applies"
    }
  ]
}