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codex - 💡(How to fix) Fix Codex writes to stale file version when jupyter notebook has unsaved changes [1 participants]

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openai/codex#20182•Fetched 2026-04-30 06:32:37
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What version of the IDE extension are you using?

26.422.71525

What subscription do you have?

Plus

Which IDE are you using?

VS Code

What platform is your computer?

Linux 6.14.5-100.fc40.x86_64 x86_64 unknown

What issue are you seeing?

When using the Codex VS Code extension, the extension writes changes to the file based on the older saved version rather than the currently open notebook state. If the notebook has unsaved changes, this creates a conflict where VS Code forces the user to choose between saving and losing the Codex edits, or discarding their own unsaved notebook changes. This means that each time the user prompts for changes to the notebook they must close and reopen the notebook.

What steps can reproduce the bug?

Steps to reproduce

  • Open a notebook file in VS Code.
  • Make changes in the notebook (e.g. run a cell), but do not save them.
  • Ask the Codex VS Code extension to edit the same notebook/file.
  • Let Codex apply the suggested changes.
  • The changes to not immediately appear in the notebook and the user must choose between:
    • saving their notebook changes and losing the Codex edits, or
    • discarding their unsaved notebook changes to keep the Codex edits, in addition to closing and reopening the notebook.

What is the expected behavior?

The extension should save or otherwise account for the current notebook state before applying file changes, so the user does not have to resolve a stale-version conflict manually.

Additional information

This was observed on VSC Server

extent analysis

TL;DR

The Codex VS Code extension should be updated or modified to account for the current notebook state before applying file changes to avoid version conflicts.

Guidance

  • Verify that the issue is specific to the Codex extension by testing other extensions that modify files in VS Code.
  • Check if there are any settings or configurations in the Codex extension that can be adjusted to handle unsaved changes in the notebook.
  • Consider implementing a temporary workaround where users are prompted to save their changes before the Codex extension applies its edits.
  • Investigate if the issue is related to the VS Code server or if it occurs in other environments as well.

Example

No code snippet is provided as the issue does not imply a specific code-related solution.

Notes

The issue seems to be specific to the interaction between the Codex extension and VS Code, and the solution may require changes to the extension itself. The provided information does not imply a straightforward code fix.

Recommendation

Apply workaround: Implement a temporary solution where users are prompted to save their changes before the Codex extension applies its edits, as this seems to be the most feasible short-term fix given the provided information.

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#model loading#dependency error#configuration error#environment variable#network issue

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codex - 💡(How to fix) Fix Codex writes to stale file version when jupyter notebook has unsaved changes [1 participants]