[
  {
    "caller": "Client B",
    "tool": "t3_thread_launch",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"threadId\":\"mcp:11f066b3-e43c-4e39-b435-395cc4c873f4\",\"link\":\"https://app.t3.codes/threads/90638122-7eb8-428c-a7de-4358b2636f0e/mcp%3A11f066b3-e43c-4e39-b435-395cc4c873f4\",\"projectId\":\"18837228-11c8-41bd-89f1-3c8bbe08d6c8\",\"modelSelection\":{\"instanceId\":\"devReplay\",\"model\":\"multi-turn\"},\"runId\":null,\"status\":null}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:11f066b3-e43c-4e39-b435-395cc4c873f4",
        "link": "https://app.t3.codes/threads/90638122-7eb8-428c-a7de-4358b2636f0e/mcp%3A11f066b3-e43c-4e39-b435-395cc4c873f4",
        "projectId": "18837228-11c8-41bd-89f1-3c8bbe08d6c8",
        "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": "{\"threadId\":\"mcp:11f066b3-e43c-4e39-b435-395cc4c873f4\",\"messageId\":\"mcp:7d9da052-def0-4cf4-bb5d-8b48bf132a51\",\"runId\":\"run:thread:mcp%3A11f066b3-e43c-4e39-b435-395cc4c873f4:ordinal:1\",\"status\":\"starting\"}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:11f066b3-e43c-4e39-b435-395cc4c873f4",
        "messageId": "mcp:7d9da052-def0-4cf4-bb5d-8b48bf132a51",
        "runId": "run:thread:mcp%3A11f066b3-e43c-4e39-b435-395cc4c873f4:ordinal:1",
        "status": "starting"
      },
      "isError": false
    }
  },
  {
    "caller": "Client B",
    "tool": "t3_thread_launch",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"threadId\":\"mcp:2bf33f43-37a9-450b-8060-cbbedce25342\",\"link\":\"https://app.t3.codes/threads/90638122-7eb8-428c-a7de-4358b2636f0e/mcp%3A2bf33f43-37a9-450b-8060-cbbedce25342\",\"projectId\":\"18837228-11c8-41bd-89f1-3c8bbe08d6c8\",\"modelSelection\":{\"instanceId\":\"devReplay\",\"model\":\"multi-turn\"},\"runId\":\"run:thread:mcp%3A2bf33f43-37a9-450b-8060-cbbedce25342:ordinal:1\",\"status\":\"preparing\"}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:2bf33f43-37a9-450b-8060-cbbedce25342",
        "link": "https://app.t3.codes/threads/90638122-7eb8-428c-a7de-4358b2636f0e/mcp%3A2bf33f43-37a9-450b-8060-cbbedce25342",
        "projectId": "18837228-11c8-41bd-89f1-3c8bbe08d6c8",
        "modelSelection": {
          "instanceId": "devReplay",
          "model": "multi-turn"
        },
        "runId": "run:thread:mcp%3A2bf33f43-37a9-450b-8060-cbbedce25342:ordinal:1",
        "status": "preparing"
      },
      "isError": false
    }
  },
  {
    "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:e810bb8b-8212-4bd7-9769-4580a6d10953\",\"link\":\"https://app.t3.codes/threads/90638122-7eb8-428c-a7de-4358b2636f0e/mcp%3Ae810bb8b-8212-4bd7-9769-4580a6d10953\",\"projectId\":\"18837228-11c8-41bd-89f1-3c8bbe08d6c8\",\"modelSelection\":{\"instanceId\":\"devReplay\",\"model\":\"multi-turn\"},\"runId\":null,\"status\":null}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:e810bb8b-8212-4bd7-9769-4580a6d10953",
        "link": "https://app.t3.codes/threads/90638122-7eb8-428c-a7de-4358b2636f0e/mcp%3Ae810bb8b-8212-4bd7-9769-4580a6d10953",
        "projectId": "18837228-11c8-41bd-89f1-3c8bbe08d6c8",
        "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:e810bb8b-8212-4bd7-9769-4580a6d10953\",\"messageId\":\"mcp:0f3cbd35-9f27-403b-94ee-f19fa69064bb\",\"runId\":\"run:thread:mcp%3Ae810bb8b-8212-4bd7-9769-4580a6d10953:ordinal:1\",\"status\":\"starting\"}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:e810bb8b-8212-4bd7-9769-4580a6d10953",
        "messageId": "mcp:0f3cbd35-9f27-403b-94ee-f19fa69064bb",
        "runId": "run:thread:mcp%3Ae810bb8b-8212-4bd7-9769-4580a6d10953: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:4b38c90d-b183-45a0-918d-5a8ce33771a1\",\"link\":\"https://app.t3.codes/threads/90638122-7eb8-428c-a7de-4358b2636f0e/mcp%3A4b38c90d-b183-45a0-918d-5a8ce33771a1\",\"projectId\":\"18837228-11c8-41bd-89f1-3c8bbe08d6c8\",\"modelSelection\":{\"instanceId\":\"devReplay\",\"model\":\"multi-turn\"},\"runId\":\"run:thread:mcp%3A4b38c90d-b183-45a0-918d-5a8ce33771a1:ordinal:1\",\"status\":\"preparing\"}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:4b38c90d-b183-45a0-918d-5a8ce33771a1",
        "link": "https://app.t3.codes/threads/90638122-7eb8-428c-a7de-4358b2636f0e/mcp%3A4b38c90d-b183-45a0-918d-5a8ce33771a1",
        "projectId": "18837228-11c8-41bd-89f1-3c8bbe08d6c8",
        "modelSelection": {
          "instanceId": "devReplay",
          "model": "multi-turn"
        },
        "runId": "run:thread:mcp%3A4b38c90d-b183-45a0-918d-5a8ce33771a1:ordinal:1",
        "status": "preparing"
      },
      "isError": false
    }
  },
  {
    "caller": "Client B",
    "tool": "t3_thread_send_attachments",
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"threadId\":\"mcp:e810bb8b-8212-4bd7-9769-4580a6d10953\",\"messageId\":\"mcp:b483cb26-2516-43ce-81e3-80d389cef770\",\"runId\":\"run:thread:mcp%3Ae810bb8b-8212-4bd7-9769-4580a6d10953:ordinal:2\",\"status\":\"queued\"}"
        }
      ],
      "structuredContent": {
        "threadId": "mcp:e810bb8b-8212-4bd7-9769-4580a6d10953",
        "messageId": "mcp:b483cb26-2516-43ce-81e3-80d389cef770",
        "runId": "run:thread:mcp%3Ae810bb8b-8212-4bd7-9769-4580a6d10953:ordinal:2",
        "status": "queued"
      },
      "isError": false
    }
  },
  {
    "action": "Projection readback before reuse",
    "messages": [
      {
        "threadId": "mcp:11f066b3-e43c-4e39-b435-395cc4c873f4",
        "text": "Client B tries to send Client A's pending upload",
        "attachments": [
          {
            "type": "file",
            "id": "mcp-11f066b3-e43c-4e39-b435-395cc4c873f4-f3da8c7f-d384-41b1-a9fc-ea9258f6d500-txt",
            "name": "a-secret-1.txt",
            "mimeType": "text/plain",
            "sizeBytes": 57
          }
        ]
      },
      {
        "threadId": "mcp:2bf33f43-37a9-450b-8060-cbbedce25342",
        "text": "Client B tries to launch with Client A's pending upload",
        "attachments": [
          {
            "type": "file",
            "id": "mcp-2bf33f43-37a9-450b-8060-cbbedce25342-1be1e60e-20e6-4dcb-8cc9-74b5478642b1-txt",
            "name": "a-secret-2.txt",
            "mimeType": "text/plain",
            "sizeBytes": 57
          }
        ]
      },
      {
        "threadId": "mcp:4b38c90d-b183-45a0-918d-5a8ce33771a1",
        "text": "Client A launches with its own upload",
        "attachments": [
          {
            "type": "file",
            "id": "mcp-4b38c90d-b183-45a0-918d-5a8ce33771a1-47eb1886-bc90-4d4d-96b2-e12fce497b58-txt",
            "name": "a-owner-launch.txt",
            "mimeType": "text/plain",
            "sizeBytes": 61
          }
        ]
      },
      {
        "threadId": "mcp:e810bb8b-8212-4bd7-9769-4580a6d10953",
        "text": "Client A sends its own upload",
        "attachments": [
          {
            "type": "file",
            "id": "mcp-e810bb8b-8212-4bd7-9769-4580a6d10953-47a223db-3874-4f33-a0b3-8de92e14356e-txt",
            "name": "a-owner-send.txt",
            "mimeType": "text/plain",
            "sizeBytes": 59
          }
        ]
      }
    ]
  }
]