# Tool

> A single capability that connects a Mind to an external service or function.

A Tool is a single, specific capability your Mind can use to interact with the outside world. Each Tool connects the Mind to an external service, data source, or function.

When your Mind needs to do something — check a price, search the web, or send a message — it reaches for a Tool. [Skills](/docs/concepts/skill) orchestrate multiple Tools into multi-step workflows; Tools are the atomic building blocks you equip in the Mind's Armory.