I'm definitely not experienced enough to know but I read people are having it write somewhat elaborate documentation beforehand. Have it figure out which parts of the code may be touched, what other things will be affected and which uncertainties it has. Basically a full report before giving permission for any code to be written/modified. Again, I haven't seen it, don't know how common this is nor how effective. Though it sounded interesting.

Disagree. I have 200k LOC now plus 100k in tests, and it is still performing like it was four months ago when I started to seriously use AI.

If anything, it works more reliably today with the smarter models.