# script

The `script` step type runs inline code with an explicit interpreter. Use it for a small,
portable script body instead of encoding a heredoc in a shell command.

```yaml
steps:
  - name: check generated files
    type: script
    interpreter: python3
    working_directory: .
    script: |
      from pathlib import Path
      if not Path("generated/config.yaml").exists():
          raise SystemExit("missing generated config")
```

## Fields

| Field | Description |
| --- | --- |
| `interpreter` | Required executable that evaluates `script`. Supports templates. |
| `script` | Required inline program text. Supports templates. |
| `working_directory` | Optional process directory. |
| `env` | Optional environment map. |

Do not set `command` on a `script` step. Use `type: shell` for a real shell command and
`type: script` when the interpreter and body are the intentional interface.