Apple Design

An AI assistant has no feel for motion. It will slow an animation down as it arrives when it should speed up, or build one that locks you out until it has finished playing. This hands the assistant Apple's own thinking, taken from their design talks and rewritten for the web. The rules are specific: react the instant a finger goes down rather than when it lifts, keep a dragged thing stuck to the finger the whole way, and let any animation be caught and reversed halfway through. That last one is most of the difference between an interface that feels alive and one that feels like a slideshow. It was written by Emil Kowalski, who spent years building interfaces at Vercel and Linear, two software companies known for exactly this kind of polish.

Anything a person touches and drags: panels that slide up from the bottom, side drawers, swipe gestures, anything that should carry momentum. It is also worth reaching for when an animation you already built feels slightly off and you cannot put your finger on why.

1. Run the command below. It installs Emil's whole set of nine skills, not this one on its own.
2. Ask your assistant to follow the apple-design skill while it builds or reviews an interface.
3. The rest of the set is worth knowing about: animate builds an animation from scratch, review-animations goes over what you already have.