Yes, it seems to me that JSON works better than MDC as a format for rule files (because of semantic keys and hierarchy).
What are your plans for this? Are you going to support JSON? Are files that just lie in that directory ‘worse’ than those registered through your settings? When does Chat or Composer use them? Do we have to reference them explicitly?
Could you please publish some “best practices” when dealing with cursor rules and cursor notepads.