# SandboxStartingPayload

Defined in: [packages/ai/src/custom-events.ts:81](https://github.com/TanStack/ai/blob/main/packages/ai/src/custom-events.ts#L81)

Sent before the sandbox is created or resumed. The sandbox id is not known
yet, so the payload has only the provider name.

## Properties

### provider

```ts
provider: string;
```

Defined in: [packages/ai/src/custom-events.ts:82](https://github.com/TanStack/ai/blob/main/packages/ai/src/custom-events.ts#L82)