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AgentFlowNode

Struct AgentFlowNode 

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pub struct AgentFlowNode { /* private fields */ }
Expand description

Agent 在 Graph 中的节点包装。

ToolUseLoop 适配为 FlowNode,使其可以作为 Graph 的节点执行。

§State 约定

  • 输入: state.get("messages")Vec<serde_json::Value>serde_json::Value 数组
  • 输出: state.set("messages") → 更新后的消息列表
  • 自定义 key: 通过 message_key 配置

§示例

use lellm_agent::AgentFlowNode;
use lellm_graph::{GraphBuilder, NodeKind};

let agent = AgentFlowNode::new("agent", tool_use_loop);
let mut graph = GraphBuilder::new("my_graph");
graph.node("agent", NodeKind::External(Arc::new(agent)));

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impl AgentFlowNode

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pub fn new(name: impl Into<String>, loop_: ToolUseLoop) -> Self

创建新的 AgentFlowNode。

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pub fn message_key(self, key: impl Into<String>) -> Self

设置 State 中消息的 key(默认 “messages”)。

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pub fn stream_events(self, enabled: bool) -> Self

是否发射流式事件到 sink(默认 true)。

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pub fn hook(self, hook: impl AgentHook + 'static) -> Self

添加 Agent-level hook。

Hook 在 agent loop 执行前后调用,返回的 Deltas 会合并到 State。

Trait Implementations§

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impl Clone for AgentFlowNode

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fn clone(&self) -> AgentFlowNode

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl FlowNode for AgentFlowNode

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fn execute<'life0, 'life1, 'async_trait>( &'life0 self, state: &'life1 State, ) -> Pin<Box<dyn Future<Output = Result<NodeOutput, GraphError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

阻塞执行 — 运行完整的 Agent Loop。

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fn execute_stream<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, state: &'life1 State, sink: &'life2 Sender<GraphEvent>, span_id: SpanId, ) -> Pin<Box<dyn Future<Output = Result<StreamNodeResult, GraphError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

流式执行 — 运行 Agent Loop 并转发事件。

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fn metadata_hint(&self) -> NodeMetadata

节点元数据提示 — 静态声明节点的执行特征。 Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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