Libraries and motion
Borrowed polish: components and animation that make it feel real.
The second design shortcut is to not design components at all. Component libraries are collections of professionally-built pieces (buttons, forms, cards, navigation, modals) that agents know intimately and can drop straight into your project. One sentence buys a coat of polish that would take a designer weeks:
Use shadcn/ui components throughout, its forms, buttons, and cards, and keep the default styling consistent everywhere.Names worth knowing so you can name-drop them in prompts: shadcn/ui (the current community favorite), Tailwind (the styling system most of these ride on), Radix (accessible primitives underneath), and for AI-app interfaces specifically, Prompt Kit. You don't have to choose. Describe what you want and let the agent pick; it will usually reach for these anyway.
Motion
Nothing upgrades “prototype” to “product” faster than a little motion: a button that responds to hover, sections that ease in as you scroll, a loading state with life in it. Users can't name what changed. They just trust the site more.
Add subtle motion: fade-and-rise on section entry, gentle hover states on cards and buttons, smooth scrolling. Nothing bouncy, just calm and quick. Respect reduced-motion settings.That last line matters, because some visitors get motion sick, and “respect reduced-motion settings” handles them in five words. For inspiration when you want something specific, transitions.dev catalogs the good stuff.
Borrowed components plus borrowed motion can still add up to a mess. One reference, one library, one motion style per project. Restraint is the difference between polished and busy.
AI Clubhouse · Vibe Coding Guide