Curated from Google's Stitch project, this is a structured feedback loop for tightening the gap between design briefs and shipped UI. The workflow is critique, adjust, ship, repeat until the visual fidelity matches intent. You'd reach for this when you're iterating on component implementations and need a framework to keep design QA systematic rather than ad hoc. It sits in the design systems category and expects to run in design-system mode. The upstream repo has the full workflow with assets and scripts, but this catalogue entry mainly helps the agent discover and trigger the skill during planning. Honest take: the value depends entirely on how opinionated the upstream workflow is, which you'll need to check in the Google Labs repo yourself.
npx skills add https://github.com/nexu-io/open-design --skill stitch-loop