Codex fails to initialize MCP server when name contains whitespace

[SteffenDE]

According to the spec, the name field is supposed to be a human readable name for the MCP server. It doesn't mention any characters that are disallowed in there.

https://agentclientprotocol.com/protocol/session-setup#http-transport

When providing a name with a whitespace in it, Codex fails to connect to the MCP (I only tested http). claude-code-acp works just fine.

I assume this is a Codex limitation, so it might make sense to strip invalid characters before passing the config to Codex.

[benbrandt]

Thanks for reporting, we can handle this in the adapter layer