Design handoff checklist for developers

Design handoff is where a lot of small UX decisions disappear. The mockup can look clean in Figma, then the build comes back with odd spacing, missing empty states, buttons that wrap badly, and a form error nobody designed because it felt too boring to draw. I do not blame developers for most of it. If the design file does not show the real edge cases, they have to guess. What has helped me is tr…