<p>A simple, working example of a Model Context Protocol (MCP) server that lets you play the classic Lemonade Stand game through Claude Desktop.</p> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>什么是 MCP？</span></h2> <a id="user-content-what-is-mcp" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#what-is-mcp" aria-label="永久链接：什么是 MCP？"></a></div> <p dir="auto"><span>模型上下文协议 (MCP) 是一项开放标准，它使像 Claude 这样的 AI 模型能够与外部数据源和工具进行交互。此服务器通过将经典的 Lemonade Stand 游戏实现为 Claude 可以使用的一组工具来演示 MCP 的工作原理。</span></p> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>特征</span></h2> <a id="user-content-features" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#features" aria-label="永久链接：功能"></a></div> <ul dir="auto"> <li><span>🌤️ 动态天气系统影响销售</span></li> <li><span>💰 供需商业模拟</span></li> <li><span>📊 战略定价和库存管理</span></li> <li><span>🏁 14天游戏周期，带利润追踪</span></li> <li><span>🎮 可通过 Claude Desktop 完全播放</span></li> </ul> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>先决条件</span></h2> <a id="user-content-prerequisites" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#prerequisites" aria-label="永久链接：先决条件"></a></div> <ul dir="auto"> <li><a href="https://nodejs.org/" rel="nofollow"><span>Node.js</span></a><span>（建议使用 v20.11.1 或更高版本）</span></li> <li><a href="https://www.anthropic.com/claude/desktop" rel="nofollow"><span>Claude桌面</span></a></li> <li><span>npm（Node.js 附带）</span></li> </ul> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>快速入门</span></h2> <a id="user-content-quick-start" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#quick-start" aria-label="永久链接：快速入门"></a></div> <ol dir="auto"> <li> <p dir="auto"><span>克隆此存储库：</span></p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto"> <pre>git clone https://github.com/yourusername/Lemonade-Stand-MCP-Server.git <span class="pl-c1">cd</span> Lemonade-Stand-MCP-Server</pre> <div class="zeroclipboard-container">&nbsp;</div> </div> </li> <li> <p dir="auto"><span>安装依赖项：</span></p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto"> <pre>npm install</pre> <div class="zeroclipboard-container">&nbsp;</div> </div> </li> <li> <p dir="auto"><span>找到您的 Claude Desktop 配置文件：</span></p> <ul dir="auto"> <li><strong><span>macOS 系统</span></strong><span>：</span><code>~/Library/Application Support/Claude/claude_desktop_config.json</code></li> <li><strong><span>窗户</span></strong><span>：</span><code>%APPDATA%\Claude\claude_desktop_config.json</code></li> </ul> </li> <li> <p dir="auto"><span>配置Claude桌面：</span></p> <div class="highlight highlight-source-json notranslate position-relative overflow-auto" dir="auto"> <pre>{ <span class="pl-ent">"mcpServers"</span>: { <span class="pl-ent">"lemonade-stand"</span>: { <span class="pl-ent">"command"</span>: <span class="pl-s"><span class="pl-pds">"</span>node<span class="pl-pds">"</span></span>, <span class="pl-ent">"args"</span>: [ <span class="pl-s"><span class="pl-pds">"</span>/absolute/path/to/Lemonade-Stand-MCP-Server/server.js<span class="pl-pds">"</span></span> ] } } }</pre> <div class="zeroclipboard-container">&nbsp;</div> </div> </li> <li> <p dir="auto"><span>重启Claude桌面</span></p> </li> <li> <p dir="auto"><span>您现在应该在 Claude Desktop 中看到一个锤子图标，表示 MCP 服务器已连接！</span></p> </li> </ol> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>玩游戏</span></h2> <a id="user-content-playing-the-game" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#playing-the-game" aria-label="永久链接：玩游戏"></a></div> <p dir="auto"><span>一旦服务器连接成功，只需与 Claude 开始新的聊天并说：</span></p> <blockquote> <p dir="auto"><span>&ldquo;使用可用的 MCP 工具玩完整的 Lemonade Stand 游戏。&rdquo;</span></p> </blockquote> <p dir="auto"><span>克劳德随后会：</span></p> <ol dir="auto"> <li><span>开始新游戏</span></li> <li><span>分析天气状况</span></li> <li><span>就供应和定价做出战略决策</span></li> <li><span>报告每日结果</span></li> <li><span>坚持到第 14 天，否则你的生意就会失败</span></li> </ol> <div class="markdown-heading" dir="auto"> <h3 class="heading-element" dir="auto" tabindex="-1"><span>游戏机制</span></h3> <a id="user-content-game-mechanics" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#game-mechanics" aria-label="永久链接：游戏机制"></a></div> <ul dir="auto"> <li><strong><span>天气系统</span></strong><span>：温度和天气状况影响客流量</span></li> <li><strong><span>供应链</span></strong><span>：以不同的价格购买杯子、柠檬、糖和冰</span></li> <li><strong><span>价格策略</span></strong><span>：设定每杯价格以平衡利润和需求</span></li> <li><strong><span>库存管理</span></strong><span>：冰每天都会融化；明智地管理你的供应</span></li> <li><strong><span>客户需求</span></strong><span>：基于天气、价格和可用库存</span></li> </ul> <div class="markdown-heading" dir="auto"> <h3 class="heading-element" dir="auto" tabindex="-1"><span>可用工具</span></h3> <a id="user-content-available-tools" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#available-tools" aria-label="永久链接：可用工具"></a></div> <p dir="auto"><span>服务器向 Claude 公开了以下 MCP 工具：</span></p> <ul dir="auto"> <li><code>start_game</code><span>：开始新的游戏</span></li> <li><code>get_game_state</code><span>：检查当前状态、金钱、库存和天气</span></li> <li><code>buy_supplies</code><span>：购买杯子、柠檬、糖和冰</span></li> <li><code>set_price</code><span>：设定每杯柠檬水的价格</span></li> <li><code>sell_lemonade</code><span>：开业并查看每日结果</span></li> <li><code>next_day</code><span>：前进到下一天</span></li> </ul> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>配置示例</span></h2> <a id="user-content-configuration-examples" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#configuration-examples" aria-label="永久链接：配置示例"></a></div> <div class="markdown-heading" dir="auto"> <h3 class="heading-element" dir="auto" tabindex="-1"><span>对于 WSL 用户</span></h3> <a id="user-content-for-wsl-users" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#for-wsl-users" aria-label="永久链接：对于 WSL 用户"></a></div> <div class="highlight highlight-source-json notranslate position-relative overflow-auto" dir="auto"> <pre>{ <span class="pl-ent">"mcpServers"</span>: { <span class="pl-ent">"lemonade-stand"</span>: { <span class="pl-ent">"command"</span>: <span class="pl-s"><span class="pl-pds">"</span>wsl.exe<span class="pl-pds">"</span></span>, <span class="pl-ent">"args"</span>: [ <span class="pl-s"><span class="pl-pds">"</span>/home/username/.nvm/versions/node/v20.11.1/bin/node<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>/home/username/projects/Lemonade-Stand-MCP-Server/server.js<span class="pl-pds">"</span></span> ] } } }</pre> <div class="zeroclipboard-container">&nbsp;</div> </div> <div class="markdown-heading" dir="auto"> <h3 class="heading-element" dir="auto" tabindex="-1"><span>使用 NPX</span></h3> <a id="user-content-using-npx" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#using-npx" aria-label="永久链接：使用 NPX"></a></div> <div class="highlight highlight-source-json notranslate position-relative overflow-auto" dir="auto"> <pre>{ <span class="pl-ent">"mcpServers"</span>: { <span class="pl-ent">"lemonade-stand"</span>: { <span class="pl-ent">"command"</span>: <span class="pl-s"><span class="pl-pds">"</span>npx<span class="pl-pds">"</span></span>, <span class="pl-ent">"args"</span>: [ <span class="pl-s"><span class="pl-pds">"</span>/path/to/Lemonade-Stand-MCP-Server/server.js<span class="pl-pds">"</span></span> ] } } }</pre> <div class="zeroclipboard-container">&nbsp;</div> </div> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>故障排除</span></h2> <a id="user-content-troubleshooting" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#troubleshooting" aria-label="永久链接：故障排除"></a></div> <ol dir="auto"> <li> <p dir="auto"><strong><span>克劳德桌面上没有锤子图标</span></strong><span>：</span></p> <ul dir="auto"> <li><span>确保 Claude Desktop 是最新的</span></li> <li><span>检查配置文件路径是否正确</span></li> <li><span>验证 Node.js 是否已安装并可访问</span></li> <li><span>检查 Claude Desktop 登录：</span> <ul dir="auto"> <li><span>视窗：</span><code>%APPDATA%\Claude\logs\</code></li> <li><span>macOS：</span><code>~/Library/Logs/Claude/</code></li> </ul> </li> </ul> </li> <li> <p dir="auto"><strong><span>服务器连接错误</span></strong><span>：</span></p> <ul dir="auto"> <li><span>验证配置中的服务器路径是否是绝对路径</span></li> <li><span>直接使用以下方式测试服务器</span><code>node server.js</code></li> <li><span>检查 Claude Desktop 日志中是否有任何错误</span></li> </ul> </li> <li> <p dir="auto"><strong><span>WSL 特定问题</span></strong><span>：</span></p> <ul dir="auto"> <li><span>确保在 WSL 中安装了 Node.js</span></li> <li><span>使用 Node.js 二进制文件的完整路径</span></li> <li><span>检查 WSL 是否正确安装并正在运行</span></li> </ul> </li> </ol> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>发展</span></h2> <a id="user-content-development" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#development" aria-label="永久链接：开发"></a></div> <p dir="auto"><span>修改服务器：</span></p> <ol dir="auto"> <li><span>编辑</span><code>server.js</code><span>以更改游戏机制或添加新工具</span></li> <li><span>使用以下方式进行本地测试</span><code>node server.js</code></li> <li><span>重新启动 Claude Desktop 以加载更改</span></li> </ol> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>项目结构</span></h2> <a id="user-content-project-structure" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#project-structure" aria-label="永久链接：项目结构"></a></div> <div class="snippet-clipboard-content notranslate position-relative overflow-auto"> <pre class="notranslate"><code>Lemonade-Stand-MCP-Server/ ├── server.js # Main MCP server implementation ├── package.json # Node.js dependencies └── README.md # This file </code></pre> <div class="zeroclipboard-container">&nbsp;</div> </div> <div class="markdown-heading" dir="auto"> <h2 class="heading-element" dir="auto" tabindex="-1"><span>工作原理</span></h2> <a id="user-content-how-it-works" class="anchor" href="https://github.com/jimmcq/Lemonade-Stand-MCP-Server#how-it-works" aria-label="永久链接：工作原理"></a></div> <p dir="auto"><span>该 MCP 服务器实现了一个简单的游戏循环：</span></p> <ol dir="auto"> <li><span>服务器在内存中维护游戏状态</span></li> <li><span>每个工具代表一个游戏动作（购买、出售等）</span></li> <li><span>当Claude调用工具时，服务器会更新游戏状态</span></li> <li><span>结果以 JSON 格式返回给 Claude</span></li> <li><span>Claude分析结果并决定下一步行动</span></li> </ol> <p dir="auto"><span>这展示了如何使用 MCP 来创建交互式体验，其中 AI 模型可以维持状态、做出决策并与复杂系统交互。</span></p>
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