ChatGPT Apps return empty result when used with Codex

What version of Codex CLI is running?

0.96.0

What subscription do you have?

Plus

Which model were you using?

gpt-5.2-codex

What platform is your computer?

Darwin 25.2.0 arm64 arm

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

Ghostty

What issue are you seeing?

Before 0.96.0, when I was using Slack chatgpt app in my codex cli using $slack, I was getting results

However, post this update, I always get empty results. The codex_app mcp tool call works fine but returns empty json

I checked ChatGPT webapp and the slack app works perfectly there so it is not related to auth

What steps can reproduce the bug?

• Connect Slack as an App to ChatGPT
• Enable /apps experimental feature in Codex CLI
• Restart codex CLI
• Use $slack along with request 'provide latest messages for me'

What is the expected behavior?

It should return list of N messages for you

Additional information

_No response_