> ## 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.
# eval • Rust AI Agent SDK
> Evaluation Module for PraisonAI Rust SDK.
# eval
Rust AI Agent SDK
Evaluation Module for PraisonAI Rust SDK.
Provides comprehensive evaluation capabilities for AI agents.
# Example
```ignore theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
use praisonai::eval::{AccuracyEvaluator, EvaluationScore};
let evaluator = AccuracyEvaluator::new()
.input("What is 2+2?")
.expected("4")
.build();
let result = evaluator.run().await?;
println!("Score: {}", result.score);
```
## Import
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
use praisonai::eval::*;
```
## Classes
Score from an evaluation.
Performance metrics from an evaluation.
Result of a tool call during evaluation.
Score for a specific criterion.
Result from an accuracy evaluation.
Result from a performance evaluation.
Result from a reliability evaluation.
Result from a criteria evaluation.
Configuration for evaluators.
Evaluator for accuracy (comparing output to expected).
Builder for AccuracyEvaluator.
Evaluator for performance metrics.
Builder for PerformanceEvaluator.
Evaluator for reliability (tool call verification).
Builder for ReliabilityEvaluator.
Evaluator for custom criteria.
Builder for CriteriaEvaluator.
Configuration for a judge.
Result from a judge.
A judge for evaluating outputs.
Base trait for evaluators.
***
## Related Documentation