Ask HN: Where are AIs for editing (e.g. designs?) vs. creating?

I get why many AI tools like the magical sheen of a big "What UI do you want to design? Generate" interface entrance.

But I don't come to an AI UI generator with a new design. I'm guessing most people don't.

Most of us have trouble with design, have a design we know is bad, but we've already started building it.

We want to improve the design.

Why aren't there AI tools which model editing?

I would compliment the makes of Claudes chat as an alternative - their "Improve" and "Explain" options when you select text are useful for precisely this reason.