> ## 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.

# Criteria Evaluator • Rust AI Agent SDK

> CriteriaEvaluator: Evaluator for custom criteria.

# CriteriaEvaluator

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

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

Evaluator for custom criteria.

## Fields

| Name       | Type                | Description          |
| ---------- | ------------------- | -------------------- |
| `criteria` | `Vec&lt;String&gt;` | Criteria to evaluate |
| `config`   | `EvaluatorConfig`   | Configuration        |

## Methods

### `new`

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

Create a new builder.

### `evaluate`

```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn evaluate(&self, scores: &HashMap<String, f64>) -> CriteriaResult
```

Evaluate with provided scores.

**Parameters:**

| Name     | Type                 |
| -------- | -------------------- |
| `scores` | `&HashMap&lt;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#L616">
  `praisonai/src/eval/mod.rs` at line 616
</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>