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

# Session Start • AI Agent SDK

> session_start: Emit session start event.

# session\_start

Method

> This is a method of the [**ContextTraceEmitter**](https://praison.ai/docs/sdk/reference/praisonaiagents/classes/ContextTraceEmitter.md) class in the [**context\_events**](https://praison.ai/docs/sdk/reference/praisonaiagents/modules/context_events.md) module.

Emit session start event.

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def session_start(metadata: Optional[Dict[str, Any]]) -> None
```

## Parameters

**metadata** `Optional`

No description available.

## Uses

* `ContextEvent`
* `time.time`

## Source

> [card] [View on GitHub](https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/trace/context_events.py#L763)
>
> `praisonaiagents/trace/context_events.py` at line 763

***

## Related Documentation

> [card] [Session Management](https://praison.ai/docs/docs/concepts/session-management)

> [card] [Sessions Feature](https://praison.ai/docs/docs/features/sessions)

> [card] [Session Persistence](https://praison.ai/docs/docs/features/session-persistence)


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