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en What Are Tools

Alexandre edited this page Jul 20, 2026 · 7 revisions

What Are Tools?

A Tool is an action an AI client can perform through an MCP server — calling an API endpoint, running a database query, or executing a chain of steps. Tools are what turn a passive API into something an AI agent can actually act on, not just read.

Open the Arthur screen that visually supports “What Are Tools?”.

Open the Arthur screen that visually supports “What Are Tools?”

Open the Tools tab to show the product area discussed by this wiki page.

Open the Tools tab to show the product area discussed by this wiki page

Each tool declares a JSON Schema for its input and output, so the AI client knows exactly what to send and what it will get back. A tool's name and description are what the AI reads to decide when and how to call it.

Bring the New tool area into the viewport for a focused, semantic screenshot.

Bring the New tool area into the viewport for a focused, semantic screenshot

Learn more: Dynamic Tools.

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