Enum AgentEffect 

pub enum AgentEffect {
    AppendMessage(Message),
    AppendMessages(Vec<Message>),
    IncrementIteration,
    AddToolCalls(usize),
    AddOutputTokens(usize),
    AddReasoningTokens(usize),
    IncrementCompactCount,
    ReplaceMessages(Vec<Message>),
    SetStopReason(StopReason),
    SetLastResponse(ChatResponse),
}

Agent 领域事件 — 描述一次状态转换。

节点通过发射 Effect 来变更状态，而非直接修改 AgentState 字段。 Effect 是可序列化的、自包含的、不可变的。

Variants

AppendMessage(Message)

追加一条消息到历史

AppendMessages(Vec<Message>)

追加多条消息到历史

IncrementIteration

进入下一轮迭代

AddToolCalls(usize)

记录工具调用数量

AddOutputTokens(usize)

记录输出 Token

AddReasoningTokens(usize)

记录推理 Token

IncrementCompactCount

记录一次压缩

ReplaceMessages(Vec<Message>)

替换消息历史（压缩场景）

SetStopReason(StopReason)

设置停止原因

SetLastResponse(ChatResponse)

更新最后一次 LLM 响应

Trait Implementations

impl Clone for AgentEffect

fn clone(&self) -> AgentEffect

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AgentEffect

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AgentEffect

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Effect for AgentEffect

fn combine(self, _other: Self) -> Option<Self>

将此 Effect 合并到另一个同类型 Effect 中（可选）。

impl Serialize for AgentEffect

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.