Design Handoff and Developer Collaboration Questions

Getting a design built as intended: the specs, redlines and acceptance criteria a designer hands to engineers, and the communication that keeps the shipped build faithful to the design. Covers what a developer-facing spec must pin down, including component states, interaction and motion detail, breakpoint behavior, edge cases and error states, accessibility notes, and the design tokens an engineer will consume. Covers how the handoff is actually carried, in Figma Dev Mode, Storybook and the sprint ticket, and where those tools stop being enough. Also working with engineers before and during the build rather than only at the moment of handoff, resolving the tension when design intent meets technical reality, and design QA after the build: verifying the implementation against intent, visual regression checks in CI, and triaging drift without needlessly blocking a release. Both sides of the seam are examinable, including the engineer mapping design variants to component props and turning a spec into a typed component contract. Not design system and token architecture, versioning or governance; not building the prototype itself; not auditing an interface against accessibility standards.