Enum HookPoint 

#[non_exhaustive]
pub enum HookPoint {
    PreTurn,
    PostTurn,
    PreToolCallDecide,
    PostToolCall,
    OnCompaction,
    OnSessionStart,
    OnSessionEnd,
    OnToolError,
    OnInteraction,
}

Identifies the point in the agent lifecycle where a hook fires.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

PreTurn

Before the model processes a turn (receives the user prompt).

PostTurn

After the model completes a turn (receives the model response).

PreToolCallDecide

Before a tool call is executed — can approve or deny.

PostToolCall

After a tool call completes (receives the tool result).

OnCompaction

Fires when the context window is compacted (trimmed to fit limits).

OnSessionStart

Fires when a new agent session begins.

OnSessionEnd

Fires when an agent session ends.

OnToolError

Fires when a tool call returns an error.

OnInteraction

Fires on each user interaction (message received from user).

Implementations

impl HookPoint

pub const fn label(self) -> &'static str

Human-readable label for logging.

Trait Implementations

impl Clone for HookPoint

fn clone(&self) -> HookPoint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HookPoint

impl Debug for HookPoint

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HookPoint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for HookPoint

impl Hash for HookPoint

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 HookPoint

fn eq(&self, other: &HookPoint) -> 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 HookPoint

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 HookPoint