emilkowalski-skill

Catalogue stub — full package: emilkowalski/skills

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Decision tree

1. Is the full skill already installed? This package installs 15 skills (emil-design-eng, animate, animate-expo, animation-performance, animation-vocabulary, apple-design, ask-sonner, break-ui, find-animation-opportunities, improve-animations, mobile-native, pick-ui-library, prototype, review-animations, write-swift); checking the first.

   • Global: f=~/.agents/skills/emil-design-eng/SKILL.md; [ -f "$f" ] && ! grep -q "^das:" "$f" && echo "installed" || echo "pointer"
   • Project: f=.agents/skills/emil-design-eng/SKILL.md; [ -f "$f" ] && ! grep -q "^das:" "$f" && echo "installed" || echo "pointer"
   • installed → the skill is installed as emil-design-eng, invoke it and proceed
   • pointer → go to step 2

2. Detect scope, then install:

   [ -e ~/.agents/skills/emilkowalski-skill ] && echo "global" || echo "project"
   

   Copy

   Global:

   npx skills add emilkowalski/skills --skill emil-design-eng animate animate-expo animation-performance animation-vocabulary apple-design ask-sonner break-ui find-animation-opportunities improve-animations mobile-native pick-ui-library prototype review-animations write-swift -g -y
   

   Copy

   Project:

   npx skills add emilkowalski/skills --skill emil-design-eng animate animate-expo animation-performance animation-vocabulary apple-design ask-sonner break-ui find-animation-opportunities improve-animations mobile-native pick-ui-library prototype review-animations write-swift -y
   

   Copy

   Claude Code: send a command as a chat message starting with ! to run it without leaving the conversation.

Heads-up

• License: MIT
• Name collision: animate is also written by animate-skill (its install or its catalogue pointer); installing both overwrites the earlier one.
• Name collision: prototype is also written by design-for-ai (its install or its catalogue pointer); installing both overwrites the earlier one.

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Invoke after install

• emil-design-eng — "Emil Kowalski", "design engineering", "animation decision", "easing curves"
• animate — build an animation from scratch, decisions in the right order
• review-animations — review animation code against a high craft bar
• improve-animations / find-animation-opportunities — read-only audits that propose motion with exact values
• animation-performance — keep web animations inside the frame budget
• animation-vocabulary — turn a vague description of an effect into its exact term
• apple-design — Apple-style fluid, physical, gesture-driven motion for the web
• animate-expo — React Native and Expo animation
• mobile-native — make a web app feel native on a phone
• break-ui — stress UI with worst-case data
• prototype — several genuinely different versions behind a visual picker
• pick-ui-library — opinionated library choices for common frontend tasks
• ask-sonner — the Sonner toast library
• write-swift — modern Swift, concurrency, and testing

What it does

Emil Kowalski's complete design engineering methodology — animation decision framework (4 steps: should it animate? purpose? easing? duration?), required custom CSS easing curves, component interaction principles (button scale on :active, scale(0.95) entry animations, origin-aware transforms), CSS transitions over keyframes for interruptibility, and strict typography rules (65ch cap, tabular-nums, … not ...). The wider package adds review and audit skills for existing motion code, performance guidance, and mobile and native-feel techniques. Used by the creator of Sonner, Vaul, and animations.dev. For only the core skill, run npx skills add emilkowalski/skills --skill emil-design-eng instead of the full command above.

When NOT to use

• Backend, APIs, data work
• When motion is already well-handled