> ## 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.

# Parameters Schema • Rust AI Agent SDK

> parameters_schema: Get the tool's parameter schema

# parameters\_schema

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  <Badge color="purple">Method</Badge>
</div>

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

Get the tool's parameter schema

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def parameters_schema(&self) -> serde_json::Value
```

### Returns

<ResponseField name="Returns" type="serde_json::Value">
  The result of the operation.
</ResponseField>