Codex hides changed-files UI when only one HTML file is edited

Open 💬 1 comment Opened Apr 25, 2026 by pparanoiidd

What version of the IDE extension are you using?

26.422.30944

What subscription do you have?

Plus

Which IDE are you using?

VS Code

What platform is your computer?

Darwin 25.4.0 arm64 arm

What issue are you seeing?

Recently, a feature appears to have been added where, when Codex edits a .html file, an “Open” website button appears at the bottom of the response message so the user can quickly preview changes.

The bug is that when Codex edits only one HTML file and no other files, the usual helpful changed-files UI no longer appears. Specifically, the UI that normally says something like:
1 file changed +116 -70 Undo Review

As a result, it looks like no file changes happened at all, even though the HTML file was modified. There is also way to Undo or Review from the response, so the user has to manually inspect and revert the file changes.

What steps can reproduce the bug?

  1. Open VS Code with the Codex IDE extension installed.
  2. Open a workspace with a HTML file in it.
  3. Ask Codex to edit only that HTML file.
  4. After Codex responds, observe the bottom of the response message.

Example file:

<!doctype html>
<html>
  <head>
    <title>Test page</title>
  </head>
  <body>
    <h1>Hello</h1>
  </body>
</html>

What is the expected behavior?

The changed-files UI should still appear whenever Codex modifies files, including when the only changed file is a single .html file.

The “Open” website button should not replace or suppress the usual file-change controls. Ideally both should appear.

Additional information

Likely a regression related to the newer HTML preview / “Open” website button behaviour. It appears that the UI for opening the generated HTML page may be hiding or replacing the standard changed-files summary and controls when the edit only affects one .html file.

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