Tools installed by setup script in Codex Web not always accessible to the agent in Plan mode

What version of Codex is running?

codex-web

What subscription do you have?

Pro

Which model were you using?

gpt-5-codex

What platform is your computer?

Linux (Fedora 42)

What issue are you seeing?

Commandline tools installed in the environment setup script are not always accessible to the agent in Plan mode.

I'm not sure of the exact circumstances, but in some cases, the agent will be unable to execute the tool due to the executable file not being present in the agent's environment.

Running a normal "Code" session usually fixes this, but it means I have to go back to all of the failed sessions and re-run them.

What steps can reproduce the bug?

Place an executable in /usr/local/bin in the environment setup script. Ask the agent to use the tool in Plan mode. The agent's shell sometimes reports command not found.

What is the expected behavior?

_No response_

Additional information

_No response_