> ## 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.

# Reliability Evaluator • Rust AI Agent SDK

> ReliabilityEvaluator: Evaluator for reliability (tool call verification).

# ReliabilityEvaluator

> Defined in the [**eval**](../modules/eval) module.

<Badge color="orange">Rust AI Agent SDK</Badge>

Evaluator for reliability (tool call verification).

## Fields

| Name             | Type                | Description         |
| ---------------- | ------------------- | ------------------- |
| `expected_tools` | `Vec&lt;String&gt;` | Expected tool calls |
| `config`         | `EvaluatorConfig`   | Configuration       |

## Methods

### `new`

```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn new() -> ReliabilityEvaluatorBuilder
```

Create a new builder.

### `evaluate`

```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn evaluate(&self, called_tools: &[String]) -> ReliabilityResult
```

Evaluate tool calls.

**Parameters:**

| Name           | Type        |
| -------------- | ----------- |
| `called_tools` | `&[String]` |

## Source

<Card title="View on GitHub" icon="github" href="https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-rust/praisonai/src/eval/mod.rs#L529">
  `praisonai/src/eval/mod.rs` at line 529
</Card>

***

## Related Documentation

<CardGroup cols={2}>
  <Card title="Rust Evaluation" icon="gavel" href="/docs/rust/evaluation" />

  <Card title="Rust Criteria" icon="check-double" href="/docs/rust/criteria" />
</CardGroup>