Pulls in the Flutter team's animation patterns so you can add transitions, motion effects, and UI choreography to iOS and Android apps without starting from scratch. You'll want this when you're past static layouts and need things to slide, fade, or morph between states. The upstream repo has the full examples and asset files, but the skill itself gets Claude thinking in terms of Flutter's animation controllers and tween mechanics during planning. Honestly most useful if you already know you want Flutter-style motion and just need the boilerplate and patterns surfaced quickly.
npx skills add https://github.com/nexu-io/open-design --skill flutter-animating-apps