# StartupTemplate.extended

URL: /business/events/StartupTemplate.extended · Id: `event:StartupTemplate.extended`

> Emitted each time a Startup Template is extended.

[StartupTemplate.extend](/business/nouns/startup-template/extend) emits `StartupTemplate.extended` when it completes on a [Startup Template](/business/nouns/startup-template).

| Property | Value |
| --- | --- |
| Emitted by | [StartupTemplate.extend](/business/nouns/startup-template/extend) |
| Noun | [Startup Template](/business/nouns/startup-template) |
| Wakes | None. |

### Payload
Each delivery is an [Event](/business/nouns/event) record. `data` holds what [StartupTemplate.extend](/business/nouns/startup-template/extend) returns.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `name` | `string` | Yes | `StartupTemplate.extended`. |
| `at` | `datetime` | Yes | When it happened. |
| `seq` | `integer` | No | Its position in the namespace, one more than the Event before; any seq is a cursor into the history. |
| `data` | `json` | Yes | The Thing as the Action left it. |
| `data.startup` | [Startup](/business/nouns/startup) | Yes | The Startup, with the Startup Template among its bases. |
| `data.startupTemplate` | [Startup Template](/business/nouns/startup-template) | Yes | The Startup Template extended. |
| `data.startupTemplate.slug` | `string` | Yes | The argument to `create --template` and the page path under `/start/templates`. |
| `data.startupTemplate.operatingModel` | `string` | Yes | The human and Agent mix: `autonomous`, `single-human`, or `multi-human`. |
| `data.startupTemplate.motions` | `string[]` | Yes | The Motions its Offers sell through, such as `b2b` or `b2a`. |
| `data.startupTemplate.extends` | [Startup Template](/business/nouns/startup-template) | No | The base Startup Template whose Product Templates, Systems, Processes, and Roles it inherits. |

### Example
```json
{
  "$id": "https://api.sb/tutorloop.com/events/event_1",
  "$type": "Event",
  "name": "StartupTemplate.extended",
  "at": "2026-10-22T12:00:00Z",
  "data": {
    "startup": {
      "$id": "https://api.sb/tutorloop.com/startups/startup_1",
      "$type": "Startup",
      "name": "TutorLoop"
    },
    "startupTemplate": {
      "$id": "https://api.sb/tutorloop.com/startup-templates/startup_template_1",
      "$type": "StartupTemplate",
      "slug": "tutor-loop",
      "operatingModel": "autonomous",
      "motions": [
        "Example motions"
      ],
      "extends": "startup_template_1"
    }
  },
  "seq": 1
}
```