tinyagents 0.1.0

A Rust LLM orchestration library inspired by LangChain and LangGraph.
Documentation 
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//! RustAgents is a small foundation for LLM applications built around
//! composable chat models, tools, and executable state graphs.

pub mod chat;
pub mod error;
pub mod graph;
pub mod harness;
pub mod language;
pub mod model;
pub mod registry;
pub mod repl;
pub mod tool;

pub use chat::{ChatMessage, ChatRole};
pub use error::{Result, RustAgentsError};
pub use model::{ChatModel, ModelRequest, ModelResponse};
pub use tool::{Tool, ToolCall, ToolResult};

// --- Harness: embeddings + retrieval ---
pub use harness::embeddings::{
    EmbeddingModel, InMemoryVectorStore, MockEmbeddingModel, Retriever, ScoredDoc, VectorStore,
    cosine_similarity,
};

// --- Harness: first-class sub-agents (agent-calling-agent composition) ---
pub use harness::subagent::{SubAgent, SubAgentTool};

// --- Harness: orchestrator → sub-agent steering ---
pub use harness::steering::{
    SteeringCommand, SteeringCommandKind, SteeringHandle, SteeringOutcome, SteeringPolicy,
};

// --- Graph: legacy sequential API (milestone 1) ---
pub use graph::{Edge, GraphRun, Node, NodeOutput, StateGraph};

// --- Graph: durable execution model (LangGraph-style) ---
// Re-exported with explicit names so the durable API is discoverable at the
// crate root. The `harness::stream::StreamMode` and `graph::stream::StreamMode`
// types intentionally stay behind their module paths to avoid a name clash.
pub use graph::{
    Checkpoint, CheckpointMetadata, Checkpointer, ClosureReducer, ClosureStateReducer, Command,
    CompiledGraph, END, ForkId, GraphBuilder, GraphEvent, GraphExecution, GraphRunStatus,
    InMemoryCheckpointer, Interrupt, NodeContext, NodeResult, Reducer, START, StateReducer,
};

// --- Graph: export / visualization ---
// Topology types are surfaced at the crate root; the `to_json`/`to_mermaid`
// free functions stay behind `graph::export::` to avoid generic-name clashes.
pub use graph::{ChannelInfo, ConditionalEdgeInfo, EdgeInfo, GraphTopology, NodeInfo, RouteInfo};