pub trait BeforeToolCall: Plugin {
// Required method
fn on_before_tool_call<'life0, 'life1, 'async_trait>(
&'life0 self,
ctx: BeforeToolCallContext<'life1>,
) -> Pin<Box<dyn Future<Output = BeforeToolDecision> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
}Expand description
Hook that runs after argument validation, before tool execution.
Cheap and side-effect-free: no I/O, no LLM calls, no spawning, no state mutation. Pure transform of context → decision.
Required Methods§
fn on_before_tool_call<'life0, 'life1, 'async_trait>(
&'life0 self,
ctx: BeforeToolCallContext<'life1>,
) -> Pin<Box<dyn Future<Output = BeforeToolDecision> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Dyn Compatibility§
This trait is dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".