Codex app on Windows can not call MCP on WSL

Open 💬 2 comments Opened Mar 6, 2026 by youtonghy

What version of the Codex App are you using (From “About Codex” dialog)?

26.305.950.0

What subscription do you have?

Team

What platform is your computer?

Windows 11 x64

What issue are you seeing?

When I choose WSL as the Agent environment, I cannot call any added MCP servers. It can be started and called normally in CLI mode. Codex currently believes that the automatic testing indicates an exception in the WSL/Windows workspace bridging, which causes mcp not to be correctly injected into the thread. Using the Windows native agent environment has no problem.

What steps can reproduce the bug?

Use windows native agent environment

What is the expected behavior?

_No response_

Additional information

_No response_

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