Struct ToolRouter 

pub struct ToolRouter { /* private fields */ }

The main router that builds and dispatches tool calls.

This is the central component that:

1. Builds tool calls from LLM response items
2. Dispatches calls to registered handlers
3. Manages tool specifications for the LLM

Implementations

impl ToolRouter

pub fn from_builder(builder: DispatchRegistryBuilder) -> Self

Create a router from a builder.

pub fn specs(&self) -> Vec<ToolSpec>

Get tool specs for sending to the LLM.

pub fn configured_specs(&self) -> &[ConfiguredToolSpec]

Get configured specs with parallel support info.

pub fn tool_supports_parallel(&self, tool_name: &str) -> bool

Check if a tool supports parallel execution.

pub fn resolve_tool_name(&self, tool_name: &str) -> Result<&str, ToolCallError>

Resolve a requested tool name to the canonical routed name.

pub fn build_tool_call( name: String, call_id: String, arguments: String, mcp_prefix: Option<&str>, ) -> Result<ToolCall, ToolCallError>

Build a ToolCall from a function call response.

This parses LLM output into a structured ToolCall that can be dispatched.

pub async fn dispatch_tool_call( &self, session: Arc<dyn ToolSession>, turn: Arc<TurnContext>, call: ToolCall, ) -> Result<ToolOutput, ToolCallError>

Dispatch a tool call to its handler.

pub fn failure_response(_call_id: String, error: ToolCallError) -> ToolOutput

Create a failure response for a tool call.