# MetadataCapability

# Variable: MetadataCapability

```ts
const MetadataCapability: Capability<MetadataStore, "metadata">;
```

Defined in: [packages/ai/src/activities/chat/middleware/metadata.ts:18](https://github.com/TanStack/ai/blob/main/packages/ai/src/activities/chat/middleware/metadata.ts#L18)