> In that way, the prompt is more interesting, and I can’t tell you how many times I’ve gone to go write a prompt because I dunno how to write what I wanna say, and then suddenly writing the prompt makes that shit clear to me.

Bingo. It can be a rubber duck that echoes your mistakes back. Unfortunately, as other commenters have pointed out, the prompt may not be as interesting/iterative as we might suppose: "Here's the assignment, what's the answer".