PR 29149 live verification, 2026-11-02, Linux Boat VM
baseline github/main: 30084f0018
PR exact head: e46bee5dabe1aa1fa2ed432e9204e2182d8b1202
Real servers, one at a time. Real git project registered using web UI. No mocks or seeded data.
MCP requests used the running /mcp endpoint with OAuth client authentication.

BEFORE / github/main
{
  "request": {
    "projectId": "7ca6d9f1-5936-4332-81e8-ebc140994950",
    "defaultModelSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol",
      "options": null
    }
  },
  "response": {
    "jsonrpc": "2.0",
    "id": 4,
    "error": {
      "code": -32602,
      "message": "Invalid parameters for tool 't3_project_update': Expected array | object\n  at [\"defaultModelSelection\"][\"options\"]"
    }
  }
}

AFTER / PR head
{
  "request": {
    "projectId": "112d1d27-278c-468e-80fc-c659223f5fae",
    "defaultModelSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol",
      "options": null
    }
  },
  "storedSelection": {
    "instanceId": "codex",
    "model": "gpt-6.1-sol"
  },
  "isError": false
}

NEIGHBORING LIVE MCP CASES
[
  {
    "case": "explicit array",
    "input": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol",
      "options": [
        {
          "id": "reasoningEffort",
          "value": "high"
        }
      ]
    },
    "error": null,
    "storedSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol",
      "options": [
        {
          "id": "reasoningEffort",
          "value": "high"
        }
      ]
    }
  },
  {
    "case": "legacy object and provider alias",
    "input": {
      "provider": "codex",
      "model": "gpt-6.1-sol",
      "options": {
        "reasoningEffort": "high"
      }
    },
    "error": null,
    "storedSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol",
      "options": [
        {
          "id": "reasoningEffort",
          "value": "high"
        }
      ]
    }
  },
  {
    "case": "invalid boolean",
    "input": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol",
      "options": false
    },
    "error": {
      "code": -32602,
      "message": "Invalid parameters for tool 't3_project_update': Expected array | object\n  at [\"defaultModelSelection\"][\"options\"]"
    },
    "storedSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol",
      "options": [
        {
          "id": "reasoningEffort",
          "value": "high"
        }
      ]
    }
  },
  {
    "case": "omitted options",
    "input": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol"
    },
    "error": null,
    "storedSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol"
    }
  },
  {
    "case": "null options",
    "input": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol",
      "options": null
    },
    "error": null,
    "storedSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol"
    }
  }
]

REAL CODEX APP-SERVER TURN/START FIELDS
[
  {
    "model": "gpt-6.1-sol",
    "threadId": "01a19e50-2425-7312-8402-961f7540fa5f"
  },
  {
    "model": "gpt-6.1-sol",
    "effort": "high",
    "threadId": "01a19e50-eaad-7552-b313-707a1794a67f"
  },
  {
    "model": "gpt-6.1-sol",
    "effort": "high",
    "threadId": "01a19e50-eaad-7552-b313-707a1794a67f"
  }
]

REAL CODEX MCP TOOL COMPLETIONS
[
  {
    "tool": "t3_project_update",
    "status": "completed",
    "arguments": {
      "projectId": "112d1d27-278c-468e-80fc-c659223f5fae",
      "defaultModelSelection": {
        "instanceId": "codex",
        "model": "gpt-6.1-sol",
        "options": null
      }
    },
    "storedSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol"
    },
    "error": null
  },
  {
    "tool": "t3_project_read",
    "status": "completed",
    "arguments": {
      "projectId": "112d1d27-278c-468e-80fc-c659223f5fae"
    },
    "storedSelection": {
      "instanceId": "codex",
      "model": "gpt-6.1-sol"
    },
    "error": null
  }
]

WEB CLIENT RESULTS
null-default new thread: gpt-6.1-sol / Low; read README.md; returned model-options-provider-ok
legacy high default new thread: gpt-6.1-sol / High; read README.md; returned explicit-options-provider-ok
follow-up real provider turn: t3_project_update literal options:null; t3_project_read returned selection without options

UNVERIFIED
native desktop/mobile clients, other providers, remote/relay/tunnel connections