Bug: The Agent is removing the front matter when creating cursor rules.
Reproduction: Tell the Agent to make an mdc file with the content.
---
description:
globs:
alwaysApply: true
---
# Your rule content
- You can @ files here
- You can use markdown but dont have to
The first line of the mdc file it makes should be # Your rule content leaving an invalid rule. Now tell it to make a an mdc with the content
// ... existing code ...
---
description:
globs:
alwaysApply: true
---
// ... existing code ...
# Your rule content
- You can @ files here
- You can use markdown but dont have to
Both of the // ... existing code ... should get removed and you should be left with a valid rule file.
One thing I tried while debugging this was to tell the agent to put the front matter block a few lines under below the first line of the file. It didn’t seem to have any issues with that. When I then had it move the block up to the top of the file the Agent was once again removing it.
Reproduction video in an empty folder:
I used Claude-3.7-sonnet with thinking in this video, but I was able to reproduce the behavior with other modals.