[
  {
    "caller": "Client B",
    "tool": "t3_thread_launch",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"threadId\":\"mcp:1f79a96a-64cc-4719-b36b-df82c5df4c00\",\"link\":\"https://app.t3.codes/threads/097adf51-c8d2-4c55-b50e-0f9998d68e3b/mcp%3A1f79a96a-64cc-4719-b36b-df82c5df4c00\",\"projectId\":\"61cc9221-24a9-47fe-a6bc-c4fa0dfb0740\",\"modelSelection\":{\"instanceId\":\"devReplay\",\"model\":\"multi-turn\"},\"runId\":null,\"status\":null}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:1f79a96a-64cc-4719-b36b-df82c5df4c00",
        "link": "https://app.t3.codes/threads/097adf51-c8d2-4c55-b50e-0f9998d68e3b/mcp%3A1f79a96a-64cc-4719-b36b-df82c5df4c00",
        "projectId": "61cc9221-24a9-47fe-a6bc-c4fa0dfb0740",
        "modelSelection": {
          "instanceId": "devReplay",
          "model": "multi-turn"
        },
        "runId": null,
        "status": null
      },
      "isError": false
    }
  },
  {
    "caller": "Client A",
    "action": "POST a-secret-1.txt",
    "status": 204
  },
  {
    "caller": "Client A",
    "action": "POST a-secret-2.txt",
    "status": 204
  },
  {
    "caller": "Client B",
    "tool": "t3_thread_send_attachments",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"_tag\":\"OrchestratorMcpFailure\",\"code\":\"invalid_request\",\"message\":\"Only the caller that prepared a pending upload can send it.\"}"
        }
      ],
      "isError": true
    }
  },
  {
    "caller": "Client B",
    "tool": "t3_thread_launch",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"_tag\":\"OrchestratorMcpFailure\",\"code\":\"invalid_request\",\"message\":\"Only the caller that prepared a pending upload can send it.\"}"
        }
      ],
      "isError": true
    }
  },
  {
    "caller": "Client A",
    "action": "POST a-discard-control.txt",
    "status": 204
  },
  {
    "caller": "Client B",
    "tool": "t3_attachment_discard",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"_tag\":\"OrchestratorMcpFailure\",\"code\":\"invalid_request\",\"message\":\"Only the caller that prepared a pending upload can discard it.\"}"
        }
      ],
      "isError": true
    }
  },
  {
    "caller": "Client A",
    "tool": "t3_thread_launch",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"threadId\":\"mcp:bd913361-75ba-4f8f-b2a7-a79662fe19df\",\"link\":\"https://app.t3.codes/threads/097adf51-c8d2-4c55-b50e-0f9998d68e3b/mcp%3Abd913361-75ba-4f8f-b2a7-a79662fe19df\",\"projectId\":\"61cc9221-24a9-47fe-a6bc-c4fa0dfb0740\",\"modelSelection\":{\"instanceId\":\"devReplay\",\"model\":\"multi-turn\"},\"runId\":null,\"status\":null}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:bd913361-75ba-4f8f-b2a7-a79662fe19df",
        "link": "https://app.t3.codes/threads/097adf51-c8d2-4c55-b50e-0f9998d68e3b/mcp%3Abd913361-75ba-4f8f-b2a7-a79662fe19df",
        "projectId": "61cc9221-24a9-47fe-a6bc-c4fa0dfb0740",
        "modelSelection": {
          "instanceId": "devReplay",
          "model": "multi-turn"
        },
        "runId": null,
        "status": null
      },
      "isError": false
    }
  },
  {
    "caller": "Client A",
    "action": "POST a-owner-send.txt",
    "status": 204
  },
  {
    "caller": "Client A",
    "tool": "t3_thread_send_attachments",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"threadId\":\"mcp:bd913361-75ba-4f8f-b2a7-a79662fe19df\",\"messageId\":\"mcp:668014f8-47b2-4bd1-824b-7cfb1b6f79d3\",\"runId\":\"run:thread:mcp%3Abd913361-75ba-4f8f-b2a7-a79662fe19df:ordinal:1\",\"status\":\"starting\"}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:bd913361-75ba-4f8f-b2a7-a79662fe19df",
        "messageId": "mcp:668014f8-47b2-4bd1-824b-7cfb1b6f79d3",
        "runId": "run:thread:mcp%3Abd913361-75ba-4f8f-b2a7-a79662fe19df:ordinal:1",
        "status": "starting"
      },
      "isError": false
    }
  },
  {
    "caller": "Client A",
    "action": "POST a-owner-launch.txt",
    "status": 204
  },
  {
    "caller": "Client A",
    "tool": "t3_thread_launch",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"threadId\":\"mcp:e1ee0db9-5a96-4903-b817-6f4c3a965772\",\"link\":\"https://app.t3.codes/threads/097adf51-c8d2-4c55-b50e-0f9998d68e3b/mcp%3Ae1ee0db9-5a96-4903-b817-6f4c3a965772\",\"projectId\":\"61cc9221-24a9-47fe-a6bc-c4fa0dfb0740\",\"modelSelection\":{\"instanceId\":\"devReplay\",\"model\":\"multi-turn\"},\"runId\":\"run:thread:mcp%3Ae1ee0db9-5a96-4903-b817-6f4c3a965772:ordinal:1\",\"status\":\"preparing\"}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:e1ee0db9-5a96-4903-b817-6f4c3a965772",
        "link": "https://app.t3.codes/threads/097adf51-c8d2-4c55-b50e-0f9998d68e3b/mcp%3Ae1ee0db9-5a96-4903-b817-6f4c3a965772",
        "projectId": "61cc9221-24a9-47fe-a6bc-c4fa0dfb0740",
        "modelSelection": {
          "instanceId": "devReplay",
          "model": "multi-turn"
        },
        "runId": "run:thread:mcp%3Ae1ee0db9-5a96-4903-b817-6f4c3a965772:ordinal:1",
        "status": "preparing"
      },
      "isError": false
    }
  },
  {
    "caller": "Client B",
    "tool": "t3_thread_send_attachments",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"threadId\":\"mcp:bd913361-75ba-4f8f-b2a7-a79662fe19df\",\"messageId\":\"mcp:d7bcc543-83b5-4a70-a492-6931ed8c27c5\",\"runId\":\"run:thread:mcp%3Abd913361-75ba-4f8f-b2a7-a79662fe19df:ordinal:2\",\"status\":\"queued\"}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:bd913361-75ba-4f8f-b2a7-a79662fe19df",
        "messageId": "mcp:d7bcc543-83b5-4a70-a492-6931ed8c27c5",
        "runId": "run:thread:mcp%3Abd913361-75ba-4f8f-b2a7-a79662fe19df:ordinal:2",
        "status": "queued"
      },
      "isError": false
    }
  },
  {
    "action": "Projection readback before reuse",
    "messages": [
      {
        "threadId": "mcp:bd913361-75ba-4f8f-b2a7-a79662fe19df",
        "text": "Client A sends its own upload",
        "attachments": [
          {
            "type": "file",
            "id": "mcp-bd913361-75ba-4f8f-b2a7-a79662fe19df-f8f5ef0f-90cb-4304-9ecf-e32bb55e518b-txt",
            "name": "a-owner-send.txt",
            "mimeType": "text/plain",
            "sizeBytes": 59
          }
        ]
      },
      {
        "threadId": "mcp:e1ee0db9-5a96-4903-b817-6f4c3a965772",
        "text": "Client A launches with its own upload",
        "attachments": [
          {
            "type": "file",
            "id": "mcp-e1ee0db9-5a96-4903-b817-6f4c3a965772-eb2e8f1b-9f1d-4dad-8ec4-bb28fcb12a24-txt",
            "name": "a-owner-launch.txt",
            "mimeType": "text/plain",
            "sizeBytes": 61
          }
        ]
      }
    ]
  }
]