Module context 

Context construction and multi-adapter composition.

The ContextAdapter trait defines pluggable context sources such as system prompts, conversation history, memory, or RAG retrieval. The ContextFactory composes multiple adapters in order to produce a complete Vec<Message> for chat requests.

Example

use behest::context::{ContextAdapter, ContextFactory, ContextInput, StaticAdapter};
use behest::provider::Message;

#[tokio::main]
async fn main() {
    let mut factory = ContextFactory::new();

    factory.register(StaticAdapter::system("You are a helpful assistant."));
    factory.register(StaticAdapter::user("Hello, how are you?"));

    let input = ContextInput::default();
    let output = factory.build(&input).await.unwrap();

    assert_eq!(output.messages().len(), 2);
}

Structs

ContextFactory

Multi-adapter context factory.

ContextInput

Input provided to context adapters.

ContextOutput

Output produced by context construction.

FunctionAdapter

Function-based context adapter.

StaticAdapter

Static context adapter that returns fixed messages.

Traits

ContextAdapter

Pluggable context source that produces message fragments.

Type Aliases

ContextResult

Result type for context operations.