openai / openai/codex

codex computer use not working

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#43,470 3 comments 0 reactions 0 assignees View on GitHub

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app bug computer-use tool-calls
Dominant language
Rust
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Forks
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PR merge metrics
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Description

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

26.901.51231

What subscription do you have?

api keys

What platform is your computer?

Darwin 25.6.0 arm64 arm

What issue are you seeing?

my gpt cannot use codex computer use for unknown reason

What steps can reproduce the bug?

i asked gpt 6 astra a sample @computer-use Play a playlist to help me lock in it answer:
I couldn’t access the computer controls to start playback. Try Deep Focus on Spotify—ambient, mostly instrumental music for settling in and concentrating.
so i asked why you can't, show me your error
it return
The computer-control tool returned this error when I tried to access it:

unsupported call: mcp__cua_repl

I then tried the general tool entry point, which returned:

unsupported call: functions

So I couldn’t reach your computer controls or start playback. These errors show the tool calls weren’t supported in this session; they don’t tell me the underlying cause.

What is the expected behavior?

No response

Additional information

No response

EDIT:
i aslo tried to remove ~/.codex/.tmp and ~/.codex\plugins\cache\openai-bundled but this solution not work for me

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the failure in Codex App 26.901.51231 on Darwin 25.6.0 arm64 using the reported @computer-use request. Start by checking whether the session supports mcp__cua_repl or functions, and compare the results after clearing the reported cache paths. Done means computer controls are available and the requested playlist can be started.

Written by the indexing model from the issue text.

Assessment

Tech stack
macos
Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
38/100

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