import { BaseTool, ToolResult } from './base-tool.js';
/**
* Calculator Tool
*
* Demonstrates:
* - Simple tool implementation
* - Input validation
* - Error handling
*/
export class CalculatorTool extends BaseTool {
name = 'calculator';
description = 'Perform basic mathematical calculations (add, subtract, multiply, divide)';
inputSchema = {
type: 'object' as const,
properties: {
operation: {
type: 'string',
enum: ['add', 'subtract', 'multiply', 'divide'],
description: 'The mathematical operation to perform',
},
a: {
type: 'number',
description: 'First number',
},
b: {
type: 'number',
description: 'Second number',
},
},
required: ['operation', 'a', 'b'],
};
async execute(args: any): Promise<ToolResult> {
const { operation, a, b } = args;
let result: number;
switch (operation) {
case 'add':
result = a + b;
break;
case 'subtract':
result = a - b;
break;
case 'multiply':
result = a * b;
break;
case 'divide':
if (b === 0) {
throw new Error('Division by zero is not allowed');
}
result = a / b;
break;
default:
throw new Error(`Unknown operation: ${operation}`);
}
return {
success: true,
data: {
operation,
operands: { a, b },
result,
},
};
}
}
