> ## Documentation Index
> Fetch the complete documentation index at: https://docs.devin.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# SessionInstrumentation

> Creates an observer for each session a client opens.

## Methods

### observe()

```typescript
observe(session: AcpSession, options: SessionTraceOptions): SessionObserver
```

#### Parameters

**session** `AcpSession` *required*

**options** `SessionTraceOptions` *required*

#### Returns

`SessionObserver`


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