{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://example.invalid/mcu-ir/run_result.schema.json",
  "title": "Model run result",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema_version", "model_id", "config_path", "config_sha256", "run_id", "started_at", "ended_at", "overall_status", "stages"],
  "properties": {
    "schema_version": {"const": "1.0"},
    "model_id": {"type": "string", "minLength": 1},
    "config_path": {"type": "string", "minLength": 1},
    "config_sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
    "run_id": {"type": "string", "minLength": 1},
    "started_at": {"type": "string", "format": "date-time"},
    "ended_at": {"type": "string", "format": "date-time"},
    "overall_status": {"enum": ["PASS", "PARTIAL", "FAIL", "BLOCKED", "QUEUED"]},
    "stages": {
      "type": "array",
      "items": {"$ref": "#/$defs/stage_result"}
    }
  },
  "$defs": {
    "file_record": {
      "type": "object",
      "additionalProperties": false,
      "required": ["path", "exists", "sha256", "bytes"],
      "properties": {
        "path": {"type": "string"},
        "exists": {"type": "boolean"},
        "sha256": {"type": ["string", "null"]},
        "bytes": {"type": ["integer", "null"], "minimum": 0}
      }
    },
    "stage_result": {
      "type": "object",
      "additionalProperties": true,
      "required": [
        "model_id", "artifact_id", "variant", "stage", "stage_id", "status",
        "failure_code", "command", "command_argv", "working_directory",
        "inputs", "outputs", "tool_versions", "random_seed", "started_at",
        "ended_at", "duration_sec", "exit_code", "error_summary",
        "stdout_log", "stderr_log", "patch", "validation", "config_sha256",
        "stage_config_sha256"
      ],
      "properties": {
        "model_id": {"type": "string"},
        "artifact_id": {"type": "string"},
        "variant": {"enum": ["fp32", "public_quantized", "pair", "common"]},
        "stage": {"type": "string"},
        "stage_id": {"type": "string"},
        "status": {"enum": ["TODO", "QUEUED", "RUNNING", "PASS", "PASS_WITH_PATCH", "PARTIAL", "BLOCKED", "FAIL", "SKIPPED"]},
        "failure_code": {"type": ["string", "null"]},
        "source_artifact": {"type": ["string", "null"]},
        "source_checksum": {"type": ["string", "null"]},
        "artifact": {"type": ["string", "null"]},
        "command": {"type": "string"},
        "command_argv": {"type": "array", "items": {"type": "string"}},
        "working_directory": {"type": "string"},
        "inputs": {"type": "array", "items": {"$ref": "#/$defs/file_record"}},
        "outputs": {"type": "array", "items": {"$ref": "#/$defs/file_record"}},
        "tool_versions": {"type": "object"},
        "options": {"type": "object"},
        "random_seed": {"type": "integer"},
        "started_at": {"type": "string", "format": "date-time"},
        "ended_at": {"type": "string", "format": "date-time"},
        "duration_sec": {"type": "number", "minimum": 0},
        "exit_code": {"type": ["integer", "null"]},
        "error_summary": {"type": "string"},
        "stdout_log": {"type": "string"},
        "stderr_log": {"type": "string"},
        "patch": {"type": ["string", "null"]},
        "validation": {"type": "object"},
        "config_sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
        "stage_config_sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
        "reused_from_previous_run": {"type": "boolean"}
      }
    }
  }
}