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ToolNode

Struct ToolNode 

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pub struct ToolNode {
    pub name: String,
    /* private fields */
}
Expand description

工具执行节点。

读取 State 中最后一条 Assistant 消息的 tool_calls, 执行所有工具调用,将 ToolResult 消息追加到消息列表。

⚠️ 警告: 此节点是 LLMNode 的配套组件,用于手动构建 ReAct 循环。 与 AgentNode 不同,不提供 ParallelSafety 并发执行、 RetryPolicy 自动重试、FallbackStrategy 容错等保护。

除非你有明确理由需要手动控制每轮 LLM 调用,否则请使用 AgentNode

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§name: String

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impl ToolNode

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pub fn all(executor: ToolExecutor) -> Self

创建包含所有注册工具的 ToolNode。

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pub fn new(name: impl Into<String>, executor: ToolExecutor) -> Self

创建指定名称的 ToolNode。

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

设置 State 中消息的 key(默认 “messages”)。

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impl GraphNode for ToolNode

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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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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,

执行节点逻辑(流式模式),将内部事件转发到 channel。 Read more

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