I work with D and LLMs do very well with it. I don't know if it could be better but it does D well enough. The problem is only working on a complex system that cannot all be held in context at once.

I based my opinion on this recent thread, https://forum.dlang.org/thread/bvteanmgrxnjiknrkeyg@forum.dl...

Which the discussion seems to imply it kind of works, but not without a few pain points.