> ## 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.

# has • Rust AI Agent SDK

> has: Check if a tool exists

# has

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

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

Check if a tool exists

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def has(&self, name: &str) -> bool
```

## Parameters

<ParamField query="name" type="&str" required={true}>
  No description available.
</ParamField>

### Returns

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