{
  "type": "CORTEX_STEP_TYPE_CHECKPOINT",
  "status": "CORTEX_STEP_STATUS_DONE",
  "metadata": {
    "createdAt": "2026-06-22T23:57:37.626587Z",
    "startedAt": "2026-06-22T23:57:37.627051Z",
    "completedAt": "2026-06-22T23:57:38.198942Z",
    "source": "CORTEX_STEP_SOURCE_SYSTEM",
    "modelUsage": {
      "model": "MODEL_PLACEHOLDER_M50",
      "inputTokens": "35",
      "outputTokens": "3",
      "responseOutputTokens": "3",
      "apiProvider": "API_PROVIDER_GOOGLE_GEMINI",
      "responseHeader": {
        "sessionID": "-3750763034362895579"
      },
      "responseId": "8cs5atWxL-eHz7IPlanjmAs"
    },
    "retryInfos": [
      {
        "usage": {
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          "outputTokens": "3",
          "responseOutputTokens": "3",
          "apiProvider": "API_PROVIDER_GOOGLE_GEMINI",
          "responseHeader": {
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          "responseId": "8cs5atWxL-eHz7IPlanjmAs"
        }
      }
    ],
    "executionId": "1df76a5f-0318-4c71-b31d-7e3b51a3d981",
    "sourceTrajectoryStepInfo": {
      "trajectoryId": "efb134b2-d69f-43de-bb54-c9ece346d8a3",
      "stepIndex": 3,
      "metadataIndex": 1,
      "cascadeId": "2399249c-4a48-40f1-bf3b-4c6e5d3a5a0e"
    },
    "internalMetadata": {
      "statusTransitions": [
        {
          "updatedStatus": "CORTEX_STEP_STATUS_PENDING",
          "timestamp": "2026-06-22T23:57:37.626702Z"
        },
        {
          "updatedStatus": "CORTEX_STEP_STATUS_RUNNING",
          "timestamp": "2026-06-22T23:57:37.627404Z"
        },
        {
          "updatedStatus": "CORTEX_STEP_STATUS_DONE",
          "timestamp": "2026-06-22T23:57:38.198972Z"
        }
      ]
    }
  },
  "checkpoint": {
    "intentOnly": true,
    "includedStepIndexEnd": 3,
    "userIntent": "Friendly Greeting Request",
    "userRequests": [
      "Say hello in one short sentence."
    ],
    "renderLatestCheckpoint": true,
    "renderUserMessageStepIndex": "0"
  }
}