---
url: 'https://adk.nht.io/api/@nhtio/adk/batteries/functions/nextCorrelationId.md'
---

# Function: nextCorrelationId()

```ts
function nextCorrelationId(): string;
```

Defined in: [src/batteries/isolation/protocol.ts:78](https://github.com/NHTIO/ADK/blob/v1.20260713.1/src/src/batteries/isolation/protocol.ts#L78)

Monotonic id generator shared by both endpoints (module-scoped counter — fine across many
instances in one realm since ids are only ever compared within a single connection).

## Returns

`string`