Macro tool 

macro_rules! tool {
    ($name:expr, $description:expr, $args_type:ty, $handler:expr) => { ... };
}

Macro to create a tool with automatic schema generation

Example

use qwencode_rs::tool;
use serde::Deserialize;

#[derive(Deserialize, JsonSchema)]
struct AddArgs {
    a: i32,
    b: i32,
}

let tool = tool!(
    "add",
    "Add two numbers",
    AddArgs,
    |args: AddArgs| async move {
        Ok(McpToolResult {
            content: vec![ToolContent::Text {
                text: format!("{}", args.a + args.b),
            }],
            is_error: false,
        })
    }
);