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

# Nu

> A self-hosted personal agent built on Rebuno

Nu is a personal agent that runs on your own machine and talks to you from a
terminal or a chat app:

* **Governed:** every tool call is checked against your [policy](https://docs.rebuno.io/nu/policy.md).
  Anything it doesn't allow waits for your approval.
* **Durable:** every step is recorded. A turn cut off by a crash picks up where
  it stopped, without repeating what it already did.
* **Isolated:** shell commands and file edits run in a
  [sandbox](https://docs.rebuno.io/nu/sandbox.md) that holds none of Nu's secrets.
* **Extensible:** [packages](https://docs.rebuno.io/nu/tools.md#packages) can add to or change almost
  anything Nu does.

Nu is built on [Pi](https://github.com/earendil-works/pi) and runs each turn as
a Rebuno execution.

The source is at [github.com/rebuno/nu](https://github.com/rebuno/nu).

> **[Quickstart](https://docs.rebuno.io/nu/getting-started.md)**
>
> Install Nu and start chatting.

> **[Policy](https://docs.rebuno.io/nu/policy.md)**
>
> Decide what Nu may do without asking.

> **[Tools](https://docs.rebuno.io/nu/tools.md)**
>
> Add MCP servers, packages, skills, and specialists.

> **[Channels](https://docs.rebuno.io/nu/channels.md)**
>
> Talk to Nu from a chat app.


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