Windows can not launch MCP servers using PNPM

What version of Codex is running?

0.30.0

Which model were you using?

gpt-5

What platform is your computer?

Microsoft Windows NT 10.0.19045.0 x64

What steps can reproduce the bug?

Add a MCP server config, using pnpm:

[mcp_servers.deepwiki]
type = "stdio"
command = "pnpx"
args = ["-y", "supergateway", "--streamableHttp", "https://mcp.deepwiki.com/mcp"]

Then launch codex and type /mcp to see that MCP server "request timed out"

What is the expected behavior?

MCP servers should be connected normally

What do you see instead?

_No response_

Additional information

PNPM is working fine on Linux and WSL2, only if running from windows has this problem

Windows + PNPM was common problems with lots of CLI agent tool, Claude Code and Gemini CLI used to have this problems, but now they have already fixed this bug