codex app crashed and report "ignoring interface.defaultPrompt[0]: prompt must be at most 128 "
Resolved 💬 3 comments Opened Jun 5, 2026 by lofiCafe Closed Jun 23, 2026
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of the Codex App are you using (From “About Codex” dialog)?
26.602.30954
What subscription do you have?
ChatGPT Plus
What platform is your computer?
Darwin 23.6.0 x86_64 i386
What issue are you seeing?
Codex crashed and report: " (code=null, signal=SIGSEGV).
Most recent error: {"timestamp":"2026-06-05T14:03:14.282744Z","level":"WARN","fields":{"message":"ignoring interface.defaultPrompt[0]: prompt must be at most 128 characters","path":"/Users/<username>/.codex/.tmp/plugins/plugins/ngs-analysis/.codex-plugin/plugin.json"},"target":"codex_core_plugins::manifest"}"
What steps can reproduce the bug?
Just normal conversation will reproduce the bug
<img width="1024" height="1194" alt="Image" src="https://github.com/user-attachments/assets/6edf6c8d-ac50-4fda-934c-cffe8299d01a" />
What is the expected behavior?
<img width="1024" height="1194" alt="Image" src="https://github.com/user-attachments/assets/6edf6c8d-ac50-4fda-934c-cffe8299d01a" />
Additional information
_No response_
3 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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Same issue. Default prompt for ngs-analysis has 300+ symbols while codex limits the prompt with 128 without a proper fallback.
I use a Intel Mac and the VS Code extension. The only thing that worked for me was choosing an older version of the extension.