{
  "ok": false,
  "skill_id": "geometry_foundations.fillets",
  "lane": "tool_evidence",
  "status": "failed",
  "retryable": false,
  "infrastructure_failure": true,
  "infrastructure_failures": 4,
  "error": "Brain API HTTP 504: {\n  \"ok\": false,\n  \"error\": \"Academy model request timed out\",\n  \"retryable\": true,\n  \"infrastructure_failure\": true,\n  \"output_contract\": \"academy_round_json_v6\",\n  \"exam_round\": 3,\n  \"timeout_seconds\": 360,\n  \"timeout_stage\": \"ollama_generation\",\n  \"raw_answer\": \"\",\n  \"raw_answer_sha256\": \"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855\",\n  \"raw_answer_audited\": true,\n  \"model_retry_count\": 0,\n  \"model_retry_reason\": \"\",\n  \"initial_raw_answer\": \"\",\n  \"initial_raw_answer_sha256",
  "evidence": "/SHiREVault/SHiREAcademy/Practice/geometry_foundations/fillets/20260806T030102005957Z"
}