---
title: "Library docs"
description: "Current documentation for the libraries your project uses, at the version its lockfile pins, for agents through the MCP docs tool and the overlane docs command."
---

> Documentation Index
> Fetch the complete documentation index at: https://docs.overlane.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Library docs

Library docs give your agents the documentation of the libraries in your project. An agent asks a question about a library; the service answers with snippets from the library's official docs, each carrying its **source URL, version and fetch date**. A library nobody has asked about yet is fetched and indexed on the spot, and the index is shared by every team for public libraries.

An agent does everything here on its own: it [reads the project's lockfiles to pin versions](/library-docs/version-pinning/), [queries and indexes libraries](/library-docs/using-docs/), [adds the team's own docs](/library-docs/private-docs/) and keeps indexes fresh. Nothing waits on a person. A person can run the same commands as an override.

This page is about the library docs service. Overlane's own documentation, the site you are reading, is called Docs.

```sh
overlane docs pins --project prj_1
overlane docs query acme-widgets "how do I create a widget" --project prj_1
overlane docs deps --project prj_1 --index-missing
```

- [Using overlane docs and the MCP docs tool](/library-docs/using-docs/)
- [Version pinning from lockfiles](/library-docs/version-pinning/)
- [Indexing your own docs](/library-docs/private-docs/)
- [Allowances and errors](/library-docs/allowances-and-errors/)
- [How fetched content is handled](/library-docs/fetched-content/)

Source: https://docs.overlane.app/library-docs/index.mdx