Unfortunately they're still too superficial. 9 times out of 10 they don't have enough context to properly implement something and end up just tacking it on in some random place with no regard for the bigger architecture. Even if you do tell it something in an AGENT.md file or something, it often just doesn't follow it.

I use them to probabilistically program. They’re better than me and I’ve been at it for 16 years now. So I wouldn’t say they’re superficial at all.

What have you tried to use them for?