// A simple calculator that can add, subtract, multiply, and divide numbers. Use when the user needs to perform basic arithmetic operations.
查询指定城市未来几天（明天、后天等）的天气预报。当用户询问「明天」「后天」「未来几天」天气时使用；与 weather 互补，weather 仅提供实时天气。
查询城市天气信息，支持查询今天和明天的天气预报。当用户询问某个城市的天气、温度、湿度等信息时使用。
发起 HTTP 网络请求，支持 GET、POST、PUT、DELETE、PATCH 方法。当用户需要调用 API、获取网页内容、发送数据到服务器时使用。
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
文本处理工具。支持的操作(operation)：uppercase(大写)、lowercase(小写)、reverse(反转)、trim(去空白)、count(统计)。参数：text(文本)、operation(操作类型)。
小红书图文内容创作助手。**必须传入 content**（含 title、body、hashtags、thumbnail），建议 generate_thumbnail=true。优先 Playwright HTML 截图生成封面，失败时回退 Pillow。
| name | calculator |
| description | A simple calculator that can add, subtract, multiply, and divide numbers. Use when the user needs to perform basic arithmetic operations. |
| license | MIT |
| capabilities | ["calc","math"] |
| metadata | {"author":"skillLite","version":"1.0"} |
A simple calculator that performs basic arithmetic operations.
Provide an operation and two numbers to get the result.
{"operation": "add", "a": 5, "b": 3} → 8{"operation": "subtract", "a": 10, "b": 4} → 6{"operation": "multiply", "a": 6, "b": 7} → 42{"operation": "divide", "a": 20, "b": 4} → 5