Module nodes 

Built-in graph node implementations.

All nodes implement crate::uar::runtime::graph::GraphNode.

Node	Purpose
LlmNode	Call the LLM driver and append the response
ToolNode	Execute a single MCP tool
RouterNode	Ask the LLM to choose a routing option
CheckpointNode	Record a named checkpoint in the execution flow

Re-exports

pub use agent_node::AgentNode;

pub use checkpoint_node::CheckpointNode;

pub use llm_node::LlmNode;

pub use router_node::RouterNode;

pub use tool_node::ToolNode;

Modules

agent_node

AgentNode — delegates execution to a local or remote agent.

checkpoint_node

Checkpoint graph node — records execution progress for resumability.

llm_node

LLM graph node — calls the configured LLM driver and stores the response.

router_node

Router graph node — uses the LLM to choose between multiple routing options.

tool_node

Tool graph node — executes a single MCP tool and stores the result.