Type Alias BeforeRunCallback 

pub type BeforeRunCallback = Box<dyn Fn(Arc<dyn InvocationContext>) -> Pin<Box<dyn Future<Output = Result<Option<Content>>> + Send>> + Send + Sync>;

Callback invoked before the agent run starts.

Can perform setup, validation, or early exit. Return Ok(Some(content)) to skip the run and return this content. Return Ok(None) to continue with the run.

Aliased Type

pub struct BeforeRunCallback(/* private fields */);