Struct ToolService 

pub struct ToolService { /* private fields */ }

Service for managing tools.

This provides a registry for tools and handles dispatching tool calls to the appropriate handlers.

Implementations

impl ToolService

pub fn new() -> Self

Create a new empty tool service.

pub fn register<F, Fut>(&mut self, tool: Tool, handler: F)

where F: Fn(Value, &Context<'_>) -> Fut + Send + Sync + 'static, Fut: Future<Output = Result<ToolOutput, McpError>> + Send + 'static,

Register a tool with a handler function.

pub fn register_arc<H>(&mut self, tool: Tool, handler: Arc<H>)

where H: for<'a> Fn(Value, &'a Context<'a>) -> Pin<Box<dyn Future<Output = Result<ToolOutput, McpError>> + Send + 'a>> + Send + Sync + 'static,

Register a tool with an Arc’d handler (for shared state).

pub fn get(&self, name: &str) -> Option<&RegisteredTool>

Get a tool by name.

pub fn contains(&self, name: &str) -> bool

Check if a tool exists.

pub fn list(&self) -> Vec<&Tool>

Get all registered tools.

pub fn len(&self) -> usize

Get the number of registered tools.

pub fn is_empty(&self) -> bool

Check if the service has no tools.

pub async fn call( &self, name: &str, arguments: Value, ctx: &Context<'_>, ) -> Result<ToolOutput, McpError>

Call a tool by name.

Trait Implementations

impl Default for ToolService

fn default() -> Self

Returns the “default value” for a type.

impl ToolHandler for ToolService

async fn list_tools(&self, _ctx: &Context<'_>) -> Result<Vec<Tool>, McpError>

List all available tools.

async fn call_tool( &self, name: &str, arguments: Value, ctx: &Context<'_>, ) -> Result<ToolOutput, McpError>

Call a tool with the given arguments.

fn on_tools_changed(&self) -> impl Future<Output = ()> + Send

Called when a tool’s definition has changed.