Hey, thanks for the detailed report and the request ID. This is a known bug. Plan mode blocks editing files entirely, including its own .plan.md files.
A few other users have hit the same thing:
- Plan mode cannot edit plan files (.plan.md) even though it’s supposed to
- Cursor unable to edit a plan
Workarounds that can help:
- Start a new chat, press
CTRL + I, switch to Plan mode, then repeat the request to update the plan. - Make the prompt very explicit: “Edit the plan file directly, update the .plan.md”. Sometimes this helps the model get past the restriction.
- Switch to Agent mode to edit the plan as a fallback.
The team is aware of the issue. There’s no timeline yet, but your report, and the request ID, help with prioritization.
@vidhya_sagar this affects you too, try the workarounds above.