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AgentNode

Struct AgentNode 

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pub struct AgentNode {
    pub name: String,
    pub agent: ToolUseLoop,
    pub prefix: String,
    pub write_messages: bool,
    pub write_stats: bool,
}
Expand description

Agent 节点(包装 ToolUseLoop)。

执行后将以下字段写回 State(默认 key 可通过 builder 自定义):

  • {prefix}.messages — 完整对话历史(含工具调用与结果)
  • {prefix}.output — 最终回复纯文本
  • {prefix}.iterations — LLM 调用轮次
  • {prefix}.tool_calls — 工具调用总数
  • {prefix}.stop_reason — 停止原因(“Complete” / “MaxIterations” / …)

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§name: String§agent: ToolUseLoop§prefix: String

State 中的 key 前缀,默认 “agent”

§write_messages: bool

是否写回完整 messages(默认 true)

§write_stats: bool

是否写回执行统计(默认 true)

Implementations§

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impl AgentNode

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

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pub fn with_prefix(self, prefix: impl Into<String>) -> Self

设置 State key 前缀(默认 “agent”)。

写入的 key 为:{prefix}.messages{prefix}.output 等。

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

控制是否将完整对话历史写回 State(默认 true)。

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

控制是否写入 iterations / tool_calls / stop_reason(默认 true)。

Trait Implementations§

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impl GraphNode for AgentNode

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fn execute_stream<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, state: &'life1 mut 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 — 使用 ToolUseLoop::execute_stream,转发 AgentEvent。

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

执行节点逻辑(阻塞模式)。

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