> ## 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.
# Query Rewriter Agent • Rust AI Agent SDK
> QueryRewriterAgent: Agent for rewriting queries
# QueryRewriterAgent
> Defined in the [**Specialized Agents**](../modules/specialized_agents) module.
Rust AI Agent SDK
Agent for rewriting queries
```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
%%{init: {'theme': 'base', 'themeVariables': { 'primaryColor': '#8B0000', 'primaryTextColor': '#fff', 'primaryBorderColor': '#710101', 'lineColor': '#189AB4', 'secondaryColor': '#189AB4', 'tertiaryColor': '#fff' }}}%%
graph LR
input["Input Data"] --> agent["Agent: QueryRewriterAgent"]
agent --> output["Output Result"]
style agent fill:#8B0000,color:#fff
style input fill:#8B0000,color:#fff
style output fill:#8B0000,color:#fff
```
## Fields
| Name | Type | Description |
| -------- | --------------------- | ----------- |
| `config` | `QueryRewriterConfig` | - |
## Methods
### `new`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn new() -> QueryRewriterAgentBuilder
```
Create a new builder
### `name`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn name(&self) -> &str
```
Get agent name
### `model`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn model(&self) -> &str
```
Get model
### `expand_abbreviations`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn expand_abbreviations(&self, query: &str) -> String
```
Expand abbreviations in query
**Parameters:**
| Name | Type |
| ------- | ------ |
| `query` | `&str` |
### `detect_strategy`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn detect_strategy(&self, query: &str, has_chat_history: bool) -> RewriteStrategy
```
Detect the best rewriting strategy for a query
**Parameters:**
| Name | Type |
| ------------------ | ------ |
| `query` | `&str` |
| `has_chat_history` | `bool` |
### `rewrite_sync`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn rewrite_sync(
&self,
query: &str,
strategy: RewriteStrategy,
chat_history: Option<&[HashMap]>,
context: Option<&str>,
num_queries: Option,
) -> RewriteResult
```
Rewrite a query (sync placeholder - actual implementation would use LLM)
**Parameters:**
| Name | Type |
| -------------- | ------------------------------- |
| `query` | `&str` |
| `strategy` | `RewriteStrategy` |
| `chat_history` | `Option<&[HashMap<String` |
| `context` | `Option<&str>` |
| `num_queries` | `Option<usize>` |
## Source
`praisonai/src/specialized_agents.rs` at line 722
***
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