This covers the goldilocks zone for UI micro-interactions where animations are fast enough to feel snappy but slow enough to register as intentional. You get specific guidance on applying Disney animation principles at micro scale (spoiler: most don't work here), easing function recommendations, and practical CSS patterns for tooltips, dropdowns, and hover states. The 100-200ms range is where polish lives, those animations users don't consciously notice but definitely feel when they're missing. The best insight here is treating these as felt rather than watched, which changes how you think about the details. If you're building modern interfaces and want that smooth, premium feel without overthinking timing curves, this gives you the constraints and patterns to work within.
npx skills add https://github.com/dylantarre/animation-principles --skill micro-100-200ms