I haven't used agents much for coding, but I noticed that when I do have something created with the slightest complexity, it's never perfect and I have to go back and change it. This is mostly fine, but when large chunks of code are created, I don't have much context for editing things manually.
It's like waking up in a new house that you've never seen before. Sure I recognize the type of rooms, the furniture, the outlets, appliances, plumbing, and so on when I see them; but my sense of orientation is strained.
This is my main issue at the moment.