> ## 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.

# Start Execution • AI Agent SDK

> start_execution: Mark execution start.

# start\_execution

<div className="flex items-center gap-2">
  <Badge color="purple">Method</Badge>
</div>

> This is a method of the [**ObservabilityHooks**](../classes/ObservabilityHooks) class in the [**observability**](../modules/observability) module.

Mark execution start.

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def start_execution(session_id: Optional[str]) -> Any
```

## Parameters

<ParamField query="session_id" type="Optional[str]" required={false}>
  No description available.
</ParamField>

### Returns

<ResponseField name="Returns" type="Any">
  The result of the operation.
</ResponseField>

## Uses

* `reset`
* `emit`

## Source

<Card title="View on GitHub" icon="github" href="https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/escalation/observability.py#L272">
  `praisonaiagents/escalation/observability.py` at line 272
</Card>