T3 main b5a226e49c; Linux x86_64; Node v24.21.0; web dev 8623, server 16663; isolated worktree .t3
Real acplause v0.202610.0 commit 81e4a180d29637021030ae4d2d7a5abc40006e87; deliberately invalid test API key; OpenRouter model openai/gpt-4.1-mini
Diagnostic stdio: initialize protocolVersion 2, session/new, session/set_config_option model, session/prompt text Reply hello
Observed prompt result {messageId:...}
Observed update {sessionUpdate:state_update,state:idle,stopReason:error,error:{code:-32000,message:Missing Authentication header,data:{kind:auth,status:401}}}
Real T3 browser: select acplause repro / OpenAI GPT-4.1 Mini; new thread; send Reply hello. No error rendered.
Persisted T3 turn:
[
  {
    "thread_id": "23c37627-e16b-44b0-a237-7d7965b1fcb9",
    "status": "completed",
    "started_at": "2026-10-22T00:04:59.524Z",
    "completed_at": "2026-10-22T00:05:00.121Z"
  }
]
Repeated after handoff from a completed Codex turn: same completed result and no error.