import type { ToolMetadata, ToolImplementation } from '../types.js';
/**
* Calculateツールのメタデータ
*/
export const calculateMetadata: ToolMetadata = {
name: 'calculate',
description: '2つの数値の加算、減算、乗算、除算を実行します',
parameters: [
{
name: 'operation',
type: 'string',
description: '実行する演算（add, subtract, multiply, divide）',
required: true
},
{
name: 'a',
type: 'number',
description: '最初の数値',
required: true
},
{
name: 'b',
type: 'number',
description: '2番目の数値',
required: true
}
]
};
/**
* Calculateツールの実装
*/
export const calculateImplementation: ToolImplementation = async (parameters) => {
const { operation, a, b } = parameters;
// バリデーション
if (!operation || a === undefined || b === undefined) {
throw new Error('operation, a, and b parameters are required');
}
if (typeof a !== 'number' || typeof b !== 'number') {
throw new Error('a and b must be numbers');
}
// 演算実行
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 {
operation,
a,
b,
result,
timestamp: new Date().toISOString()
};
};
