Enum HookEvent 

pub enum HookEvent {
    PreToolUse,
    PostToolUse,
    Stop,
    SubagentStop,
    SessionStart,
    SessionEnd,
    Notification,
}

Event kinds a hook can subscribe to. Serialised PascalCase to match Claude Code’s settings.json schema (and our own [[hooks]] config).

Variants

PreToolUse

Fires before a tool is executed. Exit 2 (block) prevents the call.

PostToolUse

Fires after a tool executes. Can override the result.

Stop

Fires when the agent is about to stop after a turn. Exit 2 keeps it going.

SubagentStop

Fires when a subagent (the subagent tool) completes.

SessionStart

Fires when a session starts.

SessionEnd

Fires when a session ends.

Notification

Fires on notifications (e.g. permission requests).

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 Copy for HookEvent

impl Debug for HookEvent

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

Formats the value using the given formatter.

impl Default for HookEvent

fn default() -> HookEvent

Returns the “default value” for a type.

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 Eq for HookEvent

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

Equality operator ==.

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

Inequality operator !=.

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 StructuralPartialEq for HookEvent