This one teaches Claude the craft side of pixel art that it normally doesn't know well. It's grounded in real techniques from people like Pedro Medeiros, covering subpixel animation, dithering patterns, hardware constraints for NES and SNES, and modern HD-2D hybrids. The approach is opinionated in good ways: it'll push back on pillow shading, warn you about anti-aliasing mistakes, and explain why four strong frames beat twelve mediocre ones. Comes with reference files for patterns, common pitfalls, and validation rules. Use it when you're actually making sprites or tilesets and need someone who's debugged seam issues at 2am.
npx skills add https://github.com/omer-metin/skills-for-antigravity --skill pixel-art