Attribute Macro tool 

#[tool]

The #[tool] attribute macro for easy tool definition

Usage on Functions

#[tool(description = "Adds two numbers")]
fn add_numbers(params: AddParams) -> Result<AddResult, Error> {
    Ok(AddResult { sum: params.a + params.b })
}

Usage on Structs

#[tool(
    name = "calculator",
    description = "Performs arithmetic operations"
)]
struct Calculator;

impl Calculator {
    fn execute(&self, params: CalcParams) -> Result<Value, Error> {
        // implementation
    }
}

This automatically:

• Generates Tool trait implementation
• Uses SchemaBasedTool for automatic schema generation
• Handles type conversions
• Provides error handling