This tells pandas to build a pivot table, using the "region" column as the index, and the small, large, and "extra large" ...

MCP（Model Context Protocol）的设计思路很简单：把工具们的「说明书」塞进 Claude 的 context window，然后让模型决定要不要用，怎么用。 假设你有 100 个工具，每个工具定义占 150 tokens.

There’s a place in Northern California where the mountains don’t just frame the horizon—they embrace the entire town like protective giants standing guard against the rush of modern life. Welcome to ...