Glossary
The kinds of tools you will find in the directory.
MCP server
A connector that lets an AI agent use another tool or service, like search or your files.
Skill
A packaged set of instructions that teaches an agent to do one kind of task well.
App
Software you use yourself, on a computer, phone or browser.
Agent
An AI that works through a task on its own: reading, writing and running commands.
API
A service that programs and agents call, rather than you directly.
Tool
A small program for one job, often run in the terminal.
Model
The AI itself that reasons and writes, like Claude or GPT.