> Research. It has been extraordinarily helpful in giving me insight into how to design some larger systems when I have extremely specific requirements but don't necessarily have the complete experience to architect them myself - I know enough to understand if the system is going to correctly accomplish the requirements, but not to have necessarily come up with architecture as a whole.

I agree, this is where coding agents really shine for me. Even if they get the details wrong, they often pinpoint where things happen and how quite well.

They're also great for rapid debugging, or assisted bug fixing. Often, I will manually debug a problem, then tell the AI, "This exception occurs in place Y because thing X is happening, here's a stack trace, propose a fix", and then it will do the work of figuring out where to put the fix for me. I already usually know WHAT to do, it's just a matter of WHERE in context. Saves a lot of time.

Likewise, if I have something where I want thing X to do Y, and X already does Z, then I'll say, "Implement a Y that works like Z but for A B C", and it'll usually get it really close on the first try.