> ## 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.
# guardrails • Rust AI Agent SDK
> Guardrails Module
# guardrails
Rust AI Agent SDK
Guardrails Module
This module provides guardrail validation for agent outputs:
* `Guardrail` - Guardrail trait for validation
* `GuardrailResult` - Result of guardrail validation
* `LlmGuardrail` - LLM-based guardrail implementation
# Example
```ignore theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
use praisonai::guardrails::{Guardrail, GuardrailResult};
struct ContentFilter;
impl Guardrail for ContentFilter {
fn validate(&self, output: &str) -> GuardrailResult {
if output.contains("unsafe") {
GuardrailResult::failure("Content contains unsafe material")
} else {
GuardrailResult::success(output.to_string())
}
}
}
```
## Import
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
use praisonai::guardrails::*;
```
## Classes
Result of a guardrail validation.
Configuration for guardrails.
Content length guardrail.
Keyword blocklist guardrail.
Regex pattern guardrail.
Chain of guardrails to run in sequence.
Trait for synchronous guardrail validation.
Trait for asynchronous guardrail validation.
Action to take when guardrail fails.
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## Related Documentation