claude-code - 💡(How to fix) Fix [BUG] Non-plan-file edits occur while plan mode is active [1 comments, 2 participants]

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anthropics/claude-code#51413Fetched 2026-04-22 08:02:57
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Error Message

Error Messages/Logs

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Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

A file other than the designated plan file was edited while plan mode was active.

What Should Happen?

While plan mode is active, no file other than the designated plan file should be editable.

Error Messages/Logs

Steps to Reproduce

  1. Enter plan mode.
  2. A file other than the designated plan file is edited while plan mode is still active.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

2.1.116 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

No response

extent analysis

TL;DR

The issue can be addressed by ensuring that the plan mode functionality correctly restricts editing to only the designated plan file.

Guidance

  • Review the plan mode activation and file editing logic to identify why files other than the designated plan file are editable.
  • Verify that the designated plan file is correctly set and recognized by the system when plan mode is active.
  • Check for any recent changes in the codebase that may have introduced this regression, focusing on the plan mode and file editing functionality.
  • Test the plan mode with different files and scenarios to ensure the issue is consistently reproducible and to gather more information on the failure conditions.

Example

No specific code snippet can be provided without more details on the implementation, but the fix likely involves modifying the file editing logic to check the current mode and the file being edited against the designated plan file.

Notes

The solution depends on the specific implementation of plan mode and file editing in the Claude Code version 2.1.116. Without access to the code or more detailed logs, the guidance is limited to suggesting areas of investigation.

Recommendation

Apply a workaround by manually ensuring that only the designated plan file is edited while in plan mode, until a permanent fix can be implemented, as the exact cause and solution require further investigation into the codebase.

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