{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "MATTER-604 submission record",
  "type": "object",
  "required": [
    "task_id",
    "final_answer",
    "artifacts",
    "metadata"
  ],
  "properties": {
    "task_id": {
      "type": "string",
      "minLength": 1
    },
    "final_answer": {
      "type": "string"
    },
    "artifacts": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "path",
          "sha256"
        ],
        "properties": {
          "path": {
            "type": "string",
            "minLength": 1
          },
          "sha256": {
            "type": "string",
            "pattern": "^[0-9a-f]{64}$"
          }
        },
        "additionalProperties": false
      }
    },
    "trace_path": {
      "type": [
        "string",
        "null"
      ]
    },
    "metadata": {
      "type": "object",
      "required": [
        "agent",
        "model",
        "prompt_sha256"
      ],
      "properties": {
        "agent": {
          "type": "string"
        },
        "model": {
          "type": "string"
        },
        "prompt_sha256": {
          "type": "string",
          "pattern": "^[0-9a-f]{64}$"
        },
        "runtime": {
          "type": "string"
        },
        "started_at": {
          "type": "string"
        },
        "finished_at": {
          "type": "string"
        }
      },
      "additionalProperties": true
    }
  },
  "additionalProperties": false
}