Struct SubagentTool 

pub struct SubagentTool;

Trait Implementations

impl Tool for SubagentTool

fn runs_independently(&self) -> bool

Each blocking subagent is its own actor: several dispatched in one batch run side by side (the parent waits for all of them either way) instead of one after another in the shared serial lane.

fn origin(&self) -> ToolOrigin

Runtime-origin identity used for catalog provenance. Conservative by default: tools that declare nothing are Unknown (fail-closed source trust), and tools that declare an owning extension classify as extension-provided. Built-in implementations override this explicitly.

fn name(&self) -> &str

Tool name as it appears in the API (e.g. “bash”, “read”).

fn description(&self) -> &str

Human-readable description sent to the model.

fn parameters(&self) -> Value

JSON Schema for the tool’s parameters.

fn execute<'life0, 'async_trait>( &'life0 self, params: Value, ctx: ToolContext, ) -> Pin<Box<dyn Future<Output = Result<String, RuntimeError>> + Send + 'async_trait>>

where 'life0: 'async_trait, SubagentTool: 'async_trait,

Execute the tool with the given parameters.

fn execute_rich<'life0, 'async_trait>( &'life0 self, params: Value, ctx: ToolContext, ) -> Pin<Box<dyn Future<Output = Result<ToolOutput, RuntimeError>> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

Structured variant of Tool::execute. DEFAULTED — existing tools keep returning String via execute and never see this. Tools that need to place non-text content blocks (images) into the model history override this and make execute delegate to it.

fn extension_id(&self) -> Option<&str>

Owning extension id for tools registered by an extension. Built-in tools return None.

fn effect(&self) -> ToolEffect

Conservative effect class (Task 24, spec §8.2). The default keeps unknown/dynamic tools NonIdempotent — serialized execution; implementations opt IN to weaker classes explicitly.

fn concurrency_key(&self, _validated_input: &Value) -> Option<ConcurrencyKey>

Key resolution derived from validated input. Serialize explicitly fails closed into the global mutation lane; None is the conservative default for tools with no key support.