If you've animated before, this is the checklist you wish you had pinned above your monitor. It covers the classic 12 principles (squash and stretch, anticipation, arcs, etc.) in a stripped-down format that assumes you already know what these are. No tutorials or hand-holding, just quick reminders like "volume constant, shape varies" and "silhouette test" to catch what you're forgetting mid-shot. It's built for people who learned this stuff years ago and need a fast reference while working, not beginners looking for their first introduction to timing and spacing.
npx skills add https://github.com/dylantarre/animation-principles --skill animation-principles---refresher