> ## 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.
# knowledge • Rust AI Agent SDK
> Knowledge System Module
# knowledge
Rust AI Agent SDK
Knowledge System Module
This module provides the full knowledge management system:
* `Knowledge` - Main knowledge manager
* `KnowledgeConfig` - Configuration for knowledge
* `Document` - Document representation
* `VectorStore` - Vector store trait and implementations
* `Retriever` - Retrieval strategies
* `Reranker` - Result reranking
# Example
```ignore theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
use praisonai::knowledge::{Knowledge, KnowledgeConfig};
let knowledge = Knowledge::new()
.config(KnowledgeConfig::default())
.build()?;
knowledge.add("Some document content", None)?;
let results = knowledge.search("query", 10)?;
```
## Import
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
use praisonai::knowledge::*;
```
## Classes
A document in the knowledge base.
A single search result item.
Container for search results.
Result of adding content to knowledge store.
A vector record in the store.
In-memory vector store implementation.
Retrieval result with additional metadata.
Rerank result.
Simple reranker that uses score-based sorting.
Index statistics.
Query result.
Chunking configuration.
Chunking utility.
Knowledge configuration.
Main knowledge manager.
Builder for Knowledge
Knowledge backend error.
Scope required error.
Protocol for vector store implementations.
Protocol for retriever implementations.
Protocol for reranker implementations.
Protocol for knowledge store backends.
Retrieval strategy enum.
Index type enum.
Query mode enum.
Chunking strategy.
***
## Related Documentation