AgentHooks

agent_sdk

Trait AgentHooks 

Source 
pub trait AgentHooks: Send + Sync {
    // Provided methods
    fn pre_tool_use<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        tool_name: &'life1 str,
        input: &'life2 Value,
        tier: ToolTier,
    ) -> Pin<Box<dyn Future<Output = ToolDecision> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait { ... }
    fn post_tool_use<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        _tool_name: &'life1 str,
        _result: &'life2 ToolResult,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait { ... }
    fn on_event<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _event: &'life1 AgentEvent,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
    fn on_error<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _error: &'life1 Error,
    ) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
    fn on_context_compact<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _messages: &'life1 [Message],
    ) -> Pin<Box<dyn Future<Output = Option<String>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
}
Expand description

Lifecycle hooks for the agent loop. Implement this trait to customize agent behavior.

Provided Methods§

Source

fn pre_tool_use<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, tool_name: &'life1 str, input: &'life2 Value, tier: ToolTier, ) -> Pin<Box<dyn Future<Output = ToolDecision> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Called before a tool is executed. Return ToolDecision::Allow to proceed, or block/require confirmation.

Source

fn post_tool_use<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _tool_name: &'life1 str, _result: &'life2 ToolResult, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Called after a tool completes execution.

Source

fn on_event<'life0, 'life1, 'async_trait>( &'life0 self, _event: &'life1 AgentEvent, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Called when the agent emits an event. Can be used for logging, metrics, or custom handling.

Source

fn on_error<'life0, 'life1, 'async_trait>( &'life0 self, _error: &'life1 Error, ) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Called when an error occurs. Return true to attempt recovery, false to abort.

Source

fn on_context_compact<'life0, 'life1, 'async_trait>( &'life0 self, _messages: &'life1 [Message], ) -> Pin<Box<dyn Future<Output = Option<String>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Called when context is about to be compacted due to length. Return a summary to use, or None to use default summarization.

Implementors§