---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/sandbox/interfaces/GuestRuntimeLike.md
description: Minimal runtime seam used by the tool and by browser/Node adapters.
---

# Interface: GuestRuntimeLike

Defined in: [src/batteries/sandbox/js/ses\_contracts.ts:81](https://github.com/NHTIO/ADK/blob/v1.20260824.1/src/src/batteries/sandbox/js/ses_contracts.ts#L81)

Minimal runtime seam used by the tool and by browser/Node adapters.

## Methods

### spawn()

```ts
spawn(o: {
  globals: readonly {
     kind: "async-fn";
     name: string;
  }[];
  limits: GuestLimits;
  modules: string[];
  signal?: AbortSignal;
}): Promise<{
  evaluate: Promise<GuestOutcome>;
  kill: Promise<void>;
}>;
```

Defined in: [src/batteries/sandbox/js/ses\_contracts.ts:89](https://github.com/NHTIO/ADK/blob/v1.20260824.1/src/src/batteries/sandbox/js/ses_contracts.ts#L89)

Start an isolated guest with the declared modules, globals, limits, and lifecycle signal.

#### Parameters

| Parameter   | Type                                                                                                                                                                   | Description                                                                                                                  |
| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------- |
| `o`         | { `globals`: readonly { `kind`: `"async-fn"`; `name`: `string`; }\[]; `limits`: [`GuestLimits`](GuestLimits.md); `modules`: `string`\[]; `signal?`: `AbortSignal`; } | Fully resolved runtime inputs and the names/shapes of injected capabilities; functions themselves do not cross the boundary. |
| `o.globals` | readonly { `kind`: `"async-fn"`; `name`: `string`; }\[]                                                                                                               | -                                                                                                                            |
| `o.limits`  | [`GuestLimits`](GuestLimits.md)                                                                                                                                        | -                                                                                                                            |
| `o.modules` | `string`\[]                                                                                                                                                             | -                                                                                                                            |
| `o.signal?` | `AbortSignal`                                                                                                                                                          | -                                                                                                                            |

#### Returns

`Promise`<{
`evaluate`: `Promise`<[`GuestOutcome`](../type-aliases/GuestOutcome.md)>;
`kill`: `Promise`<`void`>;
}>

A guest handle whose evaluation can be timed out and whose process can be killed.