AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
Why it matters
AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → Skills gives you a way to package task-specific instructions, scripts and resources as reusable units an agent loads on demand, instead of stuffing everything into one monolithic prompt — reading the source lab's own framing is the fastest way to understand how to structure agent capabilities that scale across workflows.
Key quotes
“Building a skill for an agent is like putting together an onboarding guide for a new hire.”
“Progressive disclosure is the core design principle that makes Agent Skills flexible and scalable.”
“Skills provide Claude with new capabilities through instructions and code.”
“Skills are a simple concept with a correspondingly simple format.”
