The software world
Visual diff
accept/reject diff · the diff view
A visual diff is how
Claude Code Desktop shows you a change before it's saved: the old text and the new text side by side, with what's removed and what's added marked in color. Nothing lands until you say so — each change has an accept and a reject button, so you can take the good edits and turn down the rest. (A diff is the underlying "what changed" comparison; the visual diff is just the clickable, color-coded way to read one.) Why it matters
Part of Seeing and undoing what Claude changed → This is the safety net that makes letting an AI edit your files feel sane: you see exactly what it wants to change and approve it edit by edit, instead of trusting it blindly or squinting at command-line output.