codex - 💡(How to fix) Fix GPT Breaks and is unable to recover from "insane" state. [2 comments, 3 participants]

What version of Codex CLI is running?

1.28

What subscription do you have?

pro

Which model were you using?

5.5 xhigh

What platform is your computer?

No response

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

No response

What issue are you seeing?

It crashed and would not stop

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• Model interrupted to submit steer instructions.

› what are you doing?`

Even when i stop it, it would not return to a functional state.

What steps can reproduce the bug?

› do you know exactly what glitched so i can get some help from openai?

• I don’t know the exact internal cause. From the outside, the symptom was an assistant text-generation/output-stream corruption immediately after a successful apply_patch tool call.

Useful details to give OpenAI support:

• The model began emitting nonsensical repeated fragments and symbols in the assistant message after a tool call.
• The tool call itself completed successfully: apply_patch returned Success. Updated the following files.
• The corrupted output appeared in the assistant’s normal commentary/message stream, not as tool output.
• The user interrupted the turn multiple times with turn_aborted.
• No browser/web/API call was involved at that moment.
• The issue happened during a long coding session with large context, many prior tool calls, multiple model switches, and strict formatting instructions requiring every work update to begin with state lines.
• The corrupted text included repeated tokens like PATCH, SS, TH, random punctuation, and multilingual-looking fragments.
• The likely category is “model output stream degeneration after tool call” or “assistant generation corruption,” not a repository/test failure.

A concise report:

During a long Codex coding session, immediately after a successful apply_patch tool call, the assistant’s next commentary message degenerated into nonsensical repeated tokens/fragments. The tool output was normal, but the assistant-generated message stream was corrupted until I interrupted the turn. This occurred with a large context, many prior tool calls, model switches, and strict workflow formatting instructions.

what steps can they take to reproduce the error/glitch?

• Best reproduction recipe from this session:

1. Start a long Codex coding session in a large repo.
2. Accumulate a large context with many file reads, test outputs, tool calls, and user interruptions.
3. Use strict required response-format instructions for every non-final work update, especially state-machine style lines like STATE, EDIT_PERMISSION, LOCK_STATUS, NEXT_ACTION.
4. Spawn and close multiple agents earlier in the session.
5. Run a long test command that emits a large amount of output.
6. Apply a large multi-file apply_patch after the long context and test output.
7. Immediately generate a commentary/status message after the patch returns success.

Observed failure point:

• apply_patch returned normally.
• The assistant’s next commentary message degenerated into repeated random fragments/tokens.
• The corrupted content was not tool output. It was assistant-generated text.

They may also want the exact trigger context:

Long Codex session, large workspace, prior agent delegation, strict phase-gated workflow prompt, full Jest server suite output, then a multi-file apply_patch. Immediately after apply_patch succeeded, the assistant emitted corrupted commentary text with repeated tokens like PATCH/SS/TH and random symbols.

What is the expected behavior?

No response

Additional information

No response