Skill
A reusable instruction set that teaches an agent a specific workflow.
Why it matters
Skills encode expertise as reusable instructions. Define once, agent follows consistently.
In practice
We use 20+ Claude Code skills: /commit, /frontend-design, /systematic-debugging, /ralph-loop.
Related terms
Claude Code
Anthropic's agentic coding tool that runs in the terminal, understands codebases, and executes tasks autonomously.
Plugin
An extension that adds capabilities to an AI tool (skills, MCP servers, hooks).
Hooks
Scripts that fire automatically at lifecycle events for deterministic control over AI behavior.
Prompt
An instruction or question given to an AI model. Quality determines output quality.