Enum HookEvent 

pub enum HookEvent {
    PreSendMessage,
    PostSendMessage,
    PreLlmRequest,
    PostLlmResponse,
    PreToolExecution,
    PostToolExecution,
    PostToolExecutionFailure,
    Stop,
    PreMicroCompact,
    PostMicroCompact,
    PreAutoCompact,
    PostAutoCompact,
    SessionStart,
    SessionEnd,
}

Hook 事件类型

各事件的触发时机及可读/可写字段：

stop / skip 语义（统一规则）：

• stop：中止当前步骤及其所属子管线（不发送/不请求/不结束/不保存/中止 compact）
• skip：跳过当前步骤，同级步骤继续（仅 PreToolExecution：跳过该工具，其他工具继续）

事件	触发时机	可读字段	可写字段（HookResult 中返回即生效）
PreSendMessage	用户消息入队前	user_input, messages	user_input（修改发送内容）, action=stop, retry_feedback
PostSendMessage	用户消息入队后	user_input, messages	仅通知，返回值被忽略
PreLlmRequest	LLM API 请求前	messages, system_prompt, model	messages, system_prompt, inject_messages, additional_context, action=stop, retry_feedback
PostLlmResponse	LLM 回复完成后	assistant_output, messages, model	assistant_output（修改最终回复）, action=stop, retry_feedback, system_message
PreToolExecution	工具执行前	tool_name, tool_arguments	tool_arguments（修改参数）, action=skip
PostToolExecution	工具执行后	tool_name, tool_result	tool_result（修改结果）
PostToolExecutionFailure	工具执行失败后	tool_name, tool_error	tool_error（修改错误信息）, additional_context
Stop	LLM 即将结束回复	user_input（回复文本）, messages, system_prompt, model	retry_feedback（带反馈重试）, additional_context, action=stop
PreMicroCompact	micro_compact 前	messages, model	action=stop
PostMicroCompact	micro_compact 后	messages	messages（修改压缩结果）
PreAutoCompact	auto_compact 前	messages, system_prompt, model	additional_context, action=stop
PostAutoCompact	auto_compact 后	messages	messages（修改压缩结果）
SessionStart	会话启动时	messages	仅通知，返回值被忽略
SessionEnd	会话退出时	messages	仅通知，返回值被忽略

Variants

PreSendMessage

PostSendMessage

PreLlmRequest

PostLlmResponse

PreToolExecution

PostToolExecution

PostToolExecutionFailure

Stop

PreMicroCompact

PostMicroCompact

PreAutoCompact

PostAutoCompact

SessionStart

SessionEnd

Implementations

impl HookEvent

pub fn as_str(&self) -> &'static str

返回 Hook 事件的字符串标识（如 “pre_send_message”）

pub fn all() -> &'static [HookEvent]

返回所有 HookEvent 枚举值的静态切片，用于遍历/校验

pub fn parse(s: &str) -> Option<HookEvent>

从字符串解析，不匹配时返回 None

Trait Implementations

impl Clone for HookEvent

fn clone(&self) -> HookEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HookEvent

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HookEvent

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl FromStr for HookEvent

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for HookEvent

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for HookEvent

fn eq(&self, other: &HookEvent) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for HookEvent

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for HookEvent

impl Eq for HookEvent

impl StructuralPartialEq for HookEvent