Pluhging in an LLM breaks it when those features require it to be worded a certain way. Agree that it shouldn't, but that seems to be the way it is often done.

For example, I tried Google's Gemini a while ago instead of Google Assistant on my phone and it was unable to do basic things like 'open the Signal app' and would instead go on a big tangent about how it can't open the Signal app for me, but that I could open the Signal app by finding it on my home screen or if I don't have it installed I can download it from the play store etc.