> ## 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.

# Retriever Protocol • Rust AI Agent SDK

> RetrieverProtocol: Protocol for retriever implementations.

# RetrieverProtocol

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

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

Protocol for retriever implementations.

## Methods

### `retrieve`

```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
async fn retrieve(&self, query: &str, limit: usize) -> Result<RetrievalResult>
```

Retrieve relevant documents

**Parameters:**

| Name    | Type    |
| ------- | ------- |
| `query` | `&str`  |
| `limit` | `usize` |

### `strategy`

```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn strategy(&self) -> RetrievalStrategy
```

Get retrieval strategy

## Source

<Card title="View on GitHub" icon="github" href="https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-rust/praisonai/src/knowledge/mod.rs">
  `praisonai/src/knowledge/mod.rs` at line 0
</Card>

***

## Related Documentation

<CardGroup cols={2}>
  <Card title="Rust Retrieval" icon="search" href="/docs/rust/retrieval" />

  <Card title="Rust Query" icon="magnifying-glass" href="/docs/rust/query" />
</CardGroup>