EXTERNAL MCP RUNTIME CAPTURE
Commit: ccc7b2d96ff9e1814fb22c4110b9608b0c53cc2b
Environment: Linux; real dev server; fresh isolated database; HTTP OAuth external client; Full access; no calling thread

{
  "action": "OAuth approval",
  "access": "full-access",
  "scopes": "orchestration:read orchestration:operate settings:write source-control:write",
  "callingThread": null,
  "transport": "HTTP MCP to real development server",
  "database": "fresh, no seed"
}

{
  "action": "tools/list",
  "advertised": [
    "preview_status",
    "delegate_task",
    "t3_thread_list",
    "t3_thread_read",
    "t3_thread_wait",
    "t3_thread_launch",
    "device_list"
  ]
}

{
  "tool": "t3_thread_list",
  "arguments": {},
  "response": {
    "jsonrpc": "2.0",
    "id": 3,
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"_tag\":\"OrchestratorMcpFailure\",\"code\":\"target_required\",\"message\":\"Pass projectId: this MCP client is not running inside a T3 thread.\"}"
        }
      ],
      "isError": true
    }
  }
}

{
  "tool": "t3_thread_list",
  "arguments": {
    "allProjects": true
  },
  "response": {
    "jsonrpc": "2.0",
    "id": 4,
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"projectId\":null,\"currentThreadId\":null,\"threads\":[{\"threadId\":\"thread:project:0615f520-c112-43c5-909f-96b03676178f:0cc5254a-e0de-43f1-8c37-8baac0de369a\",\"projectId\":\"0615f520-c112-43c5-909f-96b03676178f\",\"title\":\"New thread\",\"link\":\"https://app.t3.codes/threads/4d89e9d6-ebd6-4407-9eda-b1d53db41501/thread%3Aproject%3A0615f520-c112-43c5-909f-96b03676178f%3A0cc5254a-e0de-43f1-8c37-8baac0de369a\",\"createdBy\":\"system\",\"creationSource\":\"server\",\"status\":\"idle\",\"latestRunId\":null,\"providerInstanceId\":\"codex\",\"model\":\"[private model identifier removed]\",\"runtimeMode\":\"full-access\",\"interactionMode\":\"default\",\"linkedPullRequest\":null,\"pullRequests\":[],\"settled\":false,\"settledAt\":null,\"snoozed\":false,\"snoozedUntil\":null,\"parentThreadId\":null,\"relationshipToParent\":null,\"itemCount\":0,\"createdAt\":\"2026-11-11T07:41:46.744Z\",\"updatedAt\":\"2026-11-11T07:41:47.340Z\"}],\"nextCursor\":null,\"total\":1}"
        }
      ],
      "structuredContent": {
        "projectId": null,
        "currentThreadId": null,
        "threads": [
          {
            "threadId": "thread:project:0615f520-c112-43c5-909f-96b03676178f:0cc5254a-e0de-43f1-8c37-8baac0de369a",
            "projectId": "0615f520-c112-43c5-909f-96b03676178f",
            "title": "New thread",
            "link": "https://app.t3.codes/threads/4d89e9d6-ebd6-4407-9eda-b1d53db41501/thread%3Aproject%3A0615f520-c112-43c5-909f-96b03676178f%3A0cc5254a-e0de-43f1-8c37-8baac0de369a",
            "createdBy": "system",
            "creationSource": "server",
            "status": "idle",
            "latestRunId": null,
            "providerInstanceId": "codex",
            "model": "[private model identifier removed]",
            "runtimeMode": "full-access",
            "interactionMode": "default",
            "linkedPullRequest": null,
            "pullRequests": [],
            "settled": false,
            "settledAt": null,
            "snoozed": false,
            "snoozedUntil": null,
            "parentThreadId": null,
            "relationshipToParent": null,
            "itemCount": 0,
            "createdAt": "2026-11-11T07:41:46.744Z",
            "updatedAt": "2026-11-11T07:41:47.340Z"
          }
        ],
        "nextCursor": null,
        "total": 1
      },
      "isError": false
    }
  }
}

{
  "tool": "delegate_task",
  "arguments": {
    "task": "Return a short greeting."
  },
  "response": {
    "jsonrpc": "2.0",
    "id": 5,
    "result": {
      "content": [
        {
          "type": "text",
          "text": "{\"_tag\":\"OrchestratorMcpFailure\",\"code\":\"thread_credential_required\",\"message\":\"This tool acts as the calling T3 thread, so it needs an agent running inside T3 Code. This MCP client signed in from outside a thread.\"}"
        }
      ],
      "isError": true
    }
  }
}

{
  "tool": "preview_status",
  "arguments": {},
  "response": {
    "jsonrpc": "2.0",
    "id": 6,
    "result": {
      "content": [
        {
          "type": "text",
          "text": "This tool acts as the calling T3 thread, so it needs an agent running inside T3 Code. This MCP client signed in from outside a thread."
        }
      ],
      "isError": true
    }
  }
}

{
  "tool": "device_list",
  "arguments": {},
  "response": {
    "jsonrpc": "2.0",
    "id": 7,
    "result": {
      "content": [
        {
          "type": "text",
          "text": "This tool acts as the calling T3 thread, so it needs an agent running inside T3 Code. This MCP client signed in from outside a thread."
        }
      ],
      "isError": true
    }
  }
}

OUTSIDE-AGENT GUIDE
(No “What outside agents can call” section on this commit.)