### What version of Codex is running? codex-cli 0.87.0 ### What subscription do you have? Enterprise ### Which model were you using? gpt-5.2-codex ### What platform is your computer? Darwin 25.1.0 arm64 arm ### What terminal emulator and version are you using (if applicable)? Ghostty ### What issue are you seeing? I am using codex with Wiz.io's remote MCP server. I'm able to establish a connection and use it. After a few minutes of successful usage of the MCP server, I receive this error: > ⚠ MCP client for `wiz` failed to start: MCP startup failed: handshaking with MCP server failed: Send message error Transport [rmcp::transport::worker::WorkerTransport<rmcp::transport::streamable_http_client::StreamableHttpClientWorker<rmcp::transport::auth::AuthClient<reqwest::asyn c_impl::client::Client>>>] error: Auth error: OAuth token refresh failed: No refresh token available, when send initialize request ### What steps can reproduce the bug? - `codex mcp add wiz --url https://mcp.app.wiz.io` - Codex opens the browser, I authenticate - I use codex for a bit with the MCP server - Then after a few minutes, I get the error above ### What is the expected behavior? Codex maintains the MCP connection authenticated. ### Additional information _No response_
Activity
caljshin commentedon Jan 27, 2026
Does this happen if you try connect to a different MCP server that supports OAuth? I can't repro the bug since I don't have Wiz IO