Let's say you've got some rest API. Are they trying to send PATCH requests but you only support POST? Do they keep trying to add pagination or look for a cursor? Do they expect /things to return everything and /things/id to return a single one but you have /things and /thing/1 ?
None of this is to say you must do whatever they are trying to do but it's a very cheap way of seeing what introducing your API/library to a new user might be like. And, moreover, you can only ever introduce someone once but you can go again and again with a LLM. Review the things they're doing and see if actually you've deviated from broad principles and if a change/new endpoint actually would make things much easier.
Fundamentally you can break this down to "if there's someone who can do some coding but isn't a top class programmer, how much do I need to explain it to them before they can solve a particular problem?"
