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

# Data model

> Objects returned by the Arc Studio API, including rich text JSON.

## Script

```json theme={null}
{
  "id": "script_...",
  "object": "script",
  "project_id": "project_...",
  "title": "Pilot",
  "subtitle": null,
  "written_by": "Writer Name",
  "logline": null,
  "genre": null,
  "created_at": "2026-06-24T10:00:00Z",
  "last_edited_at": "2026-06-24T12:00:00Z",
  "links": {}
}
```

`latest_snapshot_id` and `snapshots` are included by `GET /scripts/{script_id}`.

## Snapshot

```json theme={null}
{
  "id": "snapshot_...",
  "object": "script_snapshot",
  "description": null,
  "revision_color": null,
  "created_at": "2026-06-24T12:00:00Z",
  "formats": ["json", "md"]
}
```

## Document

```json theme={null}
{
  "object": "document",
  "paragraphs": [
    {
      "id": "paragraph-id",
      "object": "script_paragraph",
      "kind": "action",
      "text": "FADE IN:",
      "marks": []
    }
  ]
}
```

## Rich text

Paragraphs expose plain text plus character-range marks.

```json theme={null}
{
  "text": "FADE IN:",
  "marks": [
    { "start": 0, "end": 4, "type": "bold" },
    { "start": 5, "end": 8, "type": "link", "value": "https://example.com" }
  ]
}
```

`start` and `end` are zero-based offsets into `text`. Marks may overlap. Supported types are `bold`, `italic`, `underline`, `strikethrough`, `upper-case`, `highlight`, `text-color`, and `link`.

Paragraphs can include `alternates`, which use the same `text` and `marks` shape.