> ## 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.

# Agent Start • AI Agent SDK

> agent_start: Emit agent start event.

# agent\_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 agent start event.

```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
%%{init: {'theme': 'base', 'themeVariables': { 'primaryColor': '#8B0000', 'primaryTextColor': '#fff', 'primaryBorderColor': '#710101', 'lineColor': '#189AB4', 'secondaryColor': '#189AB4', 'tertiaryColor': '#fff' }}}%%

graph LR
    input["Input Data"] --> agent["Agent: agent_start"]
    agent --> output["Output Result"]
    style agent fill:#8B0000,color:#fff
    style input fill:#8B0000,color:#fff
    style output fill:#8B0000,color:#fff
```

## Signature

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

## Parameters

**agent\_name** `str` *required*

No description available.

**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#L785)
>
> `praisonaiagents/trace/context_events.py` at line 785

***

## Related Documentation

> [card] [Agents Concept](https://praison.ai/docs/docs/concepts/agents)

> [card] [Single Agent Guide](https://praison.ai/docs/docs/guides/single-agent)

> [card] [Multi-Agent Guide](https://praison.ai/docs/docs/guides/multi-agent)

> [card] [Agent Configuration](https://praison.ai/docs/docs/configuration/agent-config)

> [card] [Auto Agents](https://praison.ai/docs/docs/features/autoagents)


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