This is for when you want Claude to design interfaces with actual aesthetic opinions instead of defaulting to generic SaaS layouts. It forces an explicit design direction (brutalist, editorial, retro-futurist, etc.) before writing code, scores feasibility with a custom index, and bans the usual suspects like Inter, Roboto, and purple gradients. The output includes working code plus a design system with fonts, colors, and motion principles. It's opinionated about what makes UI memorable versus template-like. Use it when you're building something that needs to look like it was designed by a human with taste, not assembled from component libraries. The differentiation anchor requirement is smart: if you removed the logo, how would someone recognize this interface?
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill frontend-design