> ## Documentation Index
> Fetch the complete documentation index at: https://arkor-92aeef0e-eng-716.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CLI overview

> The day-to-day shape of the Arkor CLI.

# CLI overview

The `arkor` CLI is the surface around an Arkor project. After `arkor init`, four commands cover almost everything you do day to day.

| Command                                                      | What you do with it                                             |
| ------------------------------------------------------------ | --------------------------------------------------------------- |
| [`arkor init`](/guides/cli/init)                             | Drop Arkor into the current directory. Run once per project.    |
| [`arkor dev`](/guides/cli/dev)                               | Launch Studio in the browser. The main interactive loop.        |
| [`arkor build` / `arkor start`](/guides/cli/build-and-start) | Run a trainer headlessly: in CI, on a server, or from a script. |
| [`arkor login` / `logout` / `whoami`](/guides/cli/auth)      | Sign in to Arkor Cloud or check who you are.                    |

Run any command with `--help` to see flags. Use a script form when one exists in `package.json` (e.g. `pnpm dev`); otherwise use the package-manager-specific Arkor command shown in the docs for your chosen tab.

## Reference

For all flags, exit codes, error messages, environment variables, and behavior detail per command, see the [CLI Reference](/cli/overview).