The SkillPill Blog

How to turn your books, docs and methods into AI skills that work in ChatGPT, Claude, Gemini and Codex — guides, comparisons and playbooks.

GuideAI skillsSKILL.md

What is an AI skill? (And why it beats Custom GPTs, Gems and RAG)

An AI skill is a structured knowledge pack your AI loads on demand. Here's what a skill is, how it differs from Custom GPTs, Gems and RAG, and how to build one from your own docs.

· 6 min read