This one's built for developers who need to turn code into actual teaching material, not just documentation. It pushes you through a structured process: define measurable learning objectives, decompose concepts into atomic chunks, then build progressive exercises using the "I do, we do, you do" pattern. The retention shortcuts table and cognitive load heuristics are genuinely useful, like the 7±2 rule for new concepts per section and the reminder to show expected output every 3-5 steps. It's opinionated about structure (readers should be coding within 2 minutes) and comes with specific patterns for different exercise types. Use it when you're writing onboarding docs, technical blog posts, or course content where people need to actually learn, not just reference.
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill tutorial-engineer