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

# Install

> Install @rubric-app/core or @rubric-app/claude-code.

The Node SDK ships as two npm packages under the `@rubric-app` scope. Pick the one matching what you're building.

## `@rubric-app/claude-code`

The drop-in CLI that gates Claude Code tool calls through your policies. **Most users want this one.**

```bash theme={null}
npm i -g @rubric-app/claude-code
rubric init
```

Full setup in the [Claude Code adapter](/adapters/claude-code) page.

## `@rubric-app/core`

Framework-neutral building blocks. Use this when you're writing your own adapter (Cursor, Windsurf, an in-house framework, anything not already in [/adapters/](/adapters/mcp)).

```bash theme={null}
npm i @rubric-app/core
```

The exports are documented in [Core building blocks](/sdk-node/core).

## Requirements

* **Node.js 22+** for both packages
* macOS or Linux for the Claude Code adapter (the daemon needs launchd or systemd; Windows is on the roadmap)
* `@rubric-app/core` runs anywhere Node 22 runs

## Configuration

The SDK reads three values from env vars when they're not passed explicitly:

| Env var               | Purpose                                                           |
| --------------------- | ----------------------------------------------------------------- |
| `AG_ENROLLMENT_TOKEN` | The `enr_…` string you minted on the dashboard's Enrollment page. |
| `AG_AGENT_NAME`       | Stable name for this agent. Enrollment is idempotent on this.     |
| `AG_API_URL`          | Rubric API URL. Defaults to `https://api.rubric-app.com`.         |

The Claude Code CLI uses its own variants (`RUBRIC_ENROLLMENT_TOKEN`, `RUBRIC_AGENT_NAME`, `RUBRIC_API_URL`) and stores them in `~/.config/rubric/config.json` so subsequent boots don't need them in the environment.