codex cli image_gen tool is not available

What version of Codex CLI is running?

0.129.0

What subscription do you have?

plus

Which model were you using?

gpt-5.5

What platform is your computer?

Darwin 23.6.0 arm64 arm

What terminal emulator and version are you using (if applicable)?

vscode

What issue are you seeing?

<img width="2018" height="458" alt="Image" src="https://github.com/user-attachments/assets/374f96ca-8902-4e42-8caf-a57bc54d6bde" />

i can generate image on codex app but not in cli

<img width="1566" height="594" alt="Image" src="https://github.com/user-attachments/assets/de95da79-dc03-4f08-a3ff-4864a0ef0c60" />

What steps can reproduce the bug?

<img width="2018" height="458" alt="Image" src="https://github.com/user-attachments/assets/374f96ca-8902-4e42-8caf-a57bc54d6bde" />

What is the expected behavior?

_No response_

Additional information

_No response_