Example: Adding a Calculator to Our Agent › Step 2: Define the Tool Description

calculator_tool = {
    "name": "calculate",
    "description": "Perform precise mathematical calculations. Use this for any arithmetic operations including addition, subtraction, multiplication, division, and exponentiation.",
    "input_schema": {
        "type": "object",
        "properties": {
            "expression": {
                "type": "string",
                "description": "The mathematical expression to evaluate. Use standard operators: + (add), - (subtract), * (multiply), / (divide), ** (power). Examples: '1234 * 5678', '100 + 50 - 25', '2 ** 8'"
            }
        },
        "required": ["expression"]
    }
}