This is a surprisingly thorough prompt for frame-by-frame animation work using Disney's 12 principles as originally practiced. You get detailed breakdowns of each principle with concrete applications: squash and stretch for weight, anticipation for readable actions, staging for clarity, and the full workflow from thumbnails through in-betweens to cleanup. It's clearly written for someone actually drawing animation cels, not pushing pixels in After Effects. The mantra at the end (does it feel alive, have weight, have thought, have appeal) is a good gut check. If you're doing classical hand-drawn work or teaching these fundamentals, this gives Claude the right mindset and vocabulary to work with you on pose critique or timing decisions.
npx skills add https://github.com/dylantarre/animation-principles --skill animator-traditional