> ## 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.
# Vector Store Protocol • Rust AI Agent SDK
> VectorStoreProtocol: Protocol for vector store implementations.
# VectorStoreProtocol
> Defined in the [**knowledge**](../modules/knowledge) module.
Rust AI Agent SDK
Protocol for vector store implementations.
## Methods
### `add`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
async fn add(&mut self, record: VectorRecord) -> Result
```
Add a record to the store
**Parameters:**
| Name | Type |
| -------- | -------------- |
| `record` | `VectorRecord` |
### `search`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
async fn search(&self, query_embedding: &[f32], limit: usize) -> Result>
```
Search for similar records
**Parameters:**
| Name | Type |
| ----------------- | -------- |
| `query_embedding` | `&[f32]` |
| `limit` | `usize` |
### `get`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
async fn get(&self, id: &str) -> Result>
```
Get a record by ID
**Parameters:**
| Name | Type |
| ---- | ------ |
| `id` | `&str` |
### `delete`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
async fn delete(&mut self, id: &str) -> Result
```
Delete a record by ID
**Parameters:**
| Name | Type |
| ---- | ------ |
| `id` | `&str` |
### `get_all`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
async fn get_all(&self, limit: usize) -> Result>
```
Get all records
**Parameters:**
| Name | Type |
| ------- | ------- |
| `limit` | `usize` |
### `clear`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
async fn clear(&mut self) -> Result<()>
```
Clear all records
### `len`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn len(&self) -> usize
```
Get record count
### `is_empty`
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
fn is_empty(&self) -> bool
```
Check if empty
## Source
`praisonai/src/knowledge/mod.rs` at line 0
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