maic-server-fs-mcp
Provides LLMs with local filesystem operations (read/write files, list directories) and command execution via MCP, enabling file management and task automation within AI clients.
README
Local Filesystem MCP Server (maic-server-fs-mcp)
一个基于 Model Context Protocol (MCP) 构建的自定义本地文件系统与命令行执行服务。此工具已被发布至 NPM,支持通过 npx 直接在 LLM 客户端(如 Cursor、Claude Desktop 等)中无缝运行。
🛠️ 核心工具 (Tools)
本 MCP 服务端向 LLM 提供了以下接口能力:
| 工具名称 | 作用描述 | 输入参数 |
|---|---|---|
readFile |
读取指定本地文件内容 | filePath (string) |
writeFile |
写入或更新本地文件(若父级目录不存在会自动创建) | filePath (string), content (string) |
readDirectory |
列出目标文件夹内容(已自动忽略 node_modules 等庞大文件夹) |
filePath (string, 默认 .) |
executeCommand |
在终端中运行命令(同步执行,最长 30 秒超时) | command (string) |
dispatchTask |
派发特定任务给下属专家(CODER 或 TESTER) |
worker ('CODER' | 'TESTER'), taskInstruction (string) |
humanReview |
人工审核插桩,用于人工确认 | message (string) |
🔌 接入与集成当前 MCP 服务
您可以通过 NPM 方式直接运行(推荐),或者使用本地克隆源码开发模式。
方式 1: 通过 NPM 接入(最简便,推荐)
A. 接入 Cursor 编辑器
- 打开 Cursor 设置:进入 Settings ➡️ Features ➡️ MCP。
- 点击 + Add New MCP Server:
- Name:
maic-local-filesystem-mcp - Type:
command - Command:
npx -y --package maic-server-fs-mcp mcp-server-fs
- Name:
- 点击 Save。等待状态指示灯亮起绿色 🟢。
B. 接入 Claude Desktop
- 打开并编辑 Claude Desktop 的配置文件:
- macOS:
~/Library/Application Support/Claude/claude_desktop_config.json - Windows:
%APPDATA%\Claude\claude_desktop_config.json
- macOS:
- 在
mcpServers节点内,追加如下配置:{ "mcpServers": { "maic-local-filesystem-mcp": { "command": "npx", "args": [ "-y", "--package", "maic-server-fs-mcp", "mcp-server-fs" ] } } } - 保存文件并重启 Claude Desktop。
方式 2: 使用本地克隆源码运行(适合贡献者/二次开发)
1. 安装与构建
git clone https://github.com/maicFir/server-fs-mcp.git
cd server-fs-mcp
npm install
npm run build # 编译生成 dist/server.js
2. 在客户端中配置本地路径
- Cursor (Command):
node /absolute/path/to/server-fs-mcp/dist/server.js - Claude Desktop (
claude_desktop_config.json):"maic-local-filesystem-mcp": { "command": "node", "args": [ "/absolute/path/to/server-fs-mcp/dist/server.js" ] }
⚠️ 开发者必看避坑指南 (Gotchas)
- 标准输出占用:MCP 的 stdio 传输机制完全独占了标准输出流 (
stdout) 用于 JSON-RPC 通信。因此在开发调试时,绝对不能在工具执行或初始化逻辑中使用console.log()或process.stdout.write()。 - 调试日志:所有打印日志、调试信息请全部使用
console.error()输出,客户端会自动捕获并展示在控制台或日志文件中。
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