Guys I think I’ve found a workaround:
Open VS Code Settings from the menu, search for editorAssociations, in the Workbench: Editor Associations section, Add Item where item being *.mdc and value being default.
This should bypass Cursor’s custom editor behaviour with mdc files that allows agent to edit those files.
Credit https://forum.cursor.com/t/my-take-on-cursor-rules/67535