Trait ToolHandler 

pub trait ToolHandler: Send + Sync {
    // Required method
    fn start(
        &self,
        call: ToolCall,
        context: ToolCallContext,
    ) -> Result<LinkedToolExecutionHandle, ToolStartError>;

    // Provided methods
    fn supports_abort(&self) -> bool { ... }
    fn supports_isolated_kill(&self) -> bool { ... }
}

Host-linked tool implementation.

Required Methods

fn start( &self, call: ToolCall, context: ToolCallContext, ) -> Result<LinkedToolExecutionHandle, ToolStartError>

Start one execution. Must return a handle with a single completion.

Provided Methods

fn supports_abort(&self) -> bool

Whether cooperative/abort cancellation is honored (D-024 / D-028). Default false (fail-closed): capability booleans must not self-assert.

fn supports_isolated_kill(&self) -> bool

Whether isolated kill after grace is available (D-024 / D-028). Default false (fail-closed); requires a structural ToolKillHandle.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl ToolHandler for LostCompletionHandler

impl ToolHandler for PanicOnStartHandler

impl ToolHandler for StartFailHandler

impl<F> ToolHandler for AsyncToolHandler<F>

where F: Fn(ToolCall, ToolCallContext, ToolExecutionControl) -> Pin<Box<dyn Future<Output = ToolCompletion> + Send>> + Send + Sync,

impl<F> ToolHandler for ImmediateToolHandler<F>

where F: Fn(ToolCall, ToolCallContext) -> Result<ToolCompletion, ToolStartError> + Send + Sync,

impl<F> ToolHandler for IsolatedKillableToolHandler<F>

where F: Fn(ToolCall, ToolCallContext) -> Pin<Box<dyn Future<Output = ToolCompletion> + Send>> + Send + Sync,