Nx hangs in Codex app sandbox without good feedback

[onlywei]

Because the Codex MacOS application runs in a sandbox that is enforced at the kernel level, it’s not able to run Nx properly unless explicitly given elevated permissions.

What’s worse is that Codex has no idea that Nx actually needs elevated permissions. Unless users explicitly say so in their AGENTS.md file, Codex will happily run Nx processes, which then hang without good feedback.

I think something Nx can do improve this is to detect missing permissions early in the run and exit with a clear error message so tools like Codex know to ask for permissions.