Raphael SalajaAudits animation timing choices. Springs are not free, so this is the argument for each one, per interaction.
In the author’s words
Audit animation code for correct timing function selection. Use when reviewing motion implementations, debugging animations that feel wrong, or choosing between springs and easing. Outputs file:line findings.
The description field from SKILL.md, quoted as written.
Read it before you install it
SKILL.md · 365 lines
Install on its own
Or add it to your stack above and install everything at once.
npx skills add https://github.com/raphaelsalaja/skill --skill to-spring-or-not-to-springTrust audit
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Goes well with
emil-design-eng
The design-engineering house style behind Sonner and Vaul.
Emil's main skill. Mostly animation, with the UI-polish and component judgement that surrounds it: what to build, how far to push it, and when to stop.
npx skills add https://github.com/emilkowalski/skills
animate
Builds an animation from scratch, decisions in the order that matters.
Should it animate at all, what purpose, which tool, which properties, which curve and duration, how it interrupts, how it exits. Then writes the implementation.
npx skills add https://github.com/emilkowalski/skills --skill animate
review-animations
Reviews your motion strictly, against Emil's rules.
A production-critical pass over animation quality, timing and consistency in a diff. Pairs with improve-animations, which does the same for a whole codebase.
npx skills add https://github.com/emilkowalski/skills --skill review-animations
Emil Kowalski