16 agent skills from Emil Kowalski on animation, UI polish, Apple-style motion and modern Swift. What's in them, and which 3 are worth adding to NicAI.

Skill graphs link agent skills with typed edges (depends on, specialises, conflicts with) so retrieval brings the prerequisites too. What the 2026 research shows, and where it doesn't help.

An agent skill that turns a technical book, a docs folder or a stack of papers into a structured skill: core models, one file per chapter, glossary and cheatsheet, loaded only when needed.

Every skill in my NicAI setup, grouped by purpose, 1 line each, plus what a skill is and the rules I build them by.

Practical guardrails for building Claude Skills that answer only from a provided knowledge base.