pub trait Callable:
Send
+ Sync
+ 'static {
// Required method
fn call<'life0, 'async_trait>(
&'life0 self,
input: Value,
ctx: CallCtx,
) -> Pin<Box<dyn Future<Output = Result<Value>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
// Provided method
fn label(&self) -> &str { ... }
}Expand description
Anything an agent / workflow / harness can call. Implemented by every executable unit so they’re interchangeable as workflow steps, tool invocations, and team routing targets.