> ## Documentation Index
> Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Tools Library

> Create tools once and share them across all your AI assistants. Migrate legacy tools at your own pace.

The Tools Library lets you create tools in a shared library and assign them to any assistant. Previously, tools were tied to individual assistants — if multiple assistants needed the same tool, you had to recreate it each time.

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## Overview

With the Tools Library, you define a tool once and reuse it across all your assistants. Updating a shared tool keeps behavior consistent across every assistant that uses it.

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## Capabilities

* **Shared tools** — Create tools in a central library and assign them to any assistant.
* **Reduced duplication** — Eliminates recreating identical tools across assistants with similar workflows.
* **Centralized configuration** — Update a tool in one place and maintain consistency across assistants.
* **Faster deployment** — Speed up assistant creation using prebuilt tools from the library.

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## Getting started

1. Log in to the [Mission Control Portal](https://portal.telnyx.com).
2. Navigate to **AI, Storage and Compute** > **[AI Tools](https://portal.telnyx.com/#/ai/tools)**.
3. Click **Create New Tool** to add a new tool to the library.
4. When building or editing an assistant, assign tools from the library instead of creating them inline.

<img src="https://mintcdn.com/telnyx/fhUwRG6w3rXQRQIs/img/tools-library-overview.png?fit=max&auto=format&n=fhUwRG6w3rXQRQIs&q=85&s=03817b4dbc7e133e4d788c1cef96adb9" alt="Tools Library overview" width="1194" height="365" data-path="img/tools-library-overview.png" />

You can also assign library tools directly from the assistant builder.

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## Migrating existing tools

Existing assistants with legacy (inline) tools continue to work. You can migrate legacy tools to the library at your own pace.

<Note>
  Migration is optional. Legacy tools remain functional. You can migrate tools one at a time as needed.
</Note>