The Edit Loop

The default beginner move when an image is 80% right is to regenerate the whole prompt and hope the 20% fixes itself. It usually doesn’t, and now you’ve also lost the 80% that was already working. This is prompt roulette, and it’s slow and expensive in attempts. The actual skill is diagnosis: name the specific thing that’s wrong, then fix only that thing. This is the same discipline as debugging anything else you already do daily. You don’t rewrite the whole system because one function is broken.

Before touching the prompt, name the flaw in one specific sentence. Not “something’s off,” but “the left hand has six fingers” or “the color grade is too warm” or “the subject is too centered.” If you can’t name it specifically, you’re not ready to edit yet, look longer.

Once named, use targeted edit language: “keep everything the same except [specific attribute],” or use the tool’s region-based edit/inpaint feature if it has one, pointing at the specific area rather than re-describing the whole scene. The instruction should be surgical, not a rewritten paragraph.

Two things to know about how these models handle instructions. First, full re-prompting and true region edits are different operations depending on your tool, know which one you’re using, a full re-prompt with “keep the same” language is not as reliable as an actual inpaint/edit mode when one is available. Second, models are unreliable at negative instructions. “Don’t make the sky orange” often produces an orange sky anyway, because the model latches onto “orange sky” as the salient token. State what you want instead of what you don’t want: “keep the sky pale blue” beats “don’t make it orange.”