[
  {
    "type": "RUN_STARTED",
    "threadId": "t-demo",
    "runId": "r-demo"
  },
  {
    "type": "STATE_SNAPSHOT",
    "snapshot": {
      "email": null,
      "attempt": 1
    }
  },
  {
    "type": "TOOL_CALL_START",
    "toolCallId": "tc-demo",
    "toolCallName": "wait_for_test_email",
    "parentMessageId": null
  },
  {
    "type": "TOOL_CALL_ARGS",
    "toolCallId": "tc-demo",
    "delta": "{}"
  },
  {
    "type": "TOOL_CALL_END",
    "toolCallId": "tc-demo"
  },
  {
    "type": "TOOL_CALL_RESULT",
    "messageId": "tool-msg-demo",
    "toolCallId": "tc-demo",
    "content": "Demo receipt"
  },
  {
    "type": "RUN_FINISHED",
    "threadId": "t-demo",
    "runId": "r-demo",
    "outcome": null
  }
]