INNER CODE UNIT · Rust
tool
modelcontextprotocol/rust-sdk · crates/rmcp-macros/src/lib.rs:37
pub fn tool(attr: TokenStream, input: TokenStream) -> TokenStream {
tool::tool(attr.into(), input.into())
.unwrap_or_else(|err| err.to_compile_error())
.into()
}
/// # tool_router
///
/// This macro is used to generate a tool router based on functions marked with `#[rmcp::tool]` in an implementation block.
///
/// It creates a function that returns a `ToolRouter` instance.
///
/// The generated function is used by `#[tool_handler]` by default (via `Self::tool_router()`),
/// so in most cases you do not need to store the router in a field.
///
/// ## Usage
///
/// | field | type | usage |