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Luvv MCPServer — 生产级安全审计 MCP 工具

封装 semgrep (SAST) + gitleaks (密钥检测),通过 MCP stdio 协议 为 Claude Desktop 提供一键代码安全扫描能力。

功能特性

  • run_security_scan 工具:传入目标目录路径,自动并行执行 semgrep + gitleaks

  • 返回合并的结构化 JSON 审计报告(含摘要统计)

  • 依赖工具未安装时,报告中自动附带各平台的安装指引

  • 所有异常/日志通过 stderr 输出,绝不污染 MCP 协议通道(stdout)

  • 内置路径安全校验,拒绝扫描系统敏感目录

  • Docker 环境隔离支持,预装全部依赖

Related MCP server: leak-secure-mcp

快速开始

1. 环境要求

组件

版本要求

Node.js

>= 20.0.0 LTS

npm

>= 10.0.0

semgrep

>= 1.0(可选,未安装在报告中提示)

gitleaks

>= 8.0(可选,未安装在报告中提示)

2. 安装依赖与编译

# 克隆项目(或直接进入目录)
cd luvv-mcp-server

# 安装 npm 依赖
npm install

# 编译 TypeScript
npm run build

编译产物输出到 dist/ 目录,入口文件 dist/main.js

3. 安装扫描工具(推荐)

# --- semgrep ---
# macOS
brew install semgrep

# Linux
pipx install semgrep
# 或: pip install semgrep

# --- gitleaks ---
# macOS
brew install gitleaks

# Linux
wget https://github.com/gitleaks/gitleaks/releases/latest/download/gitleaks_8.18.4_linux_x64.tar.gz
tar -xzf gitleaks_*.tar.gz -C /usr/local/bin/ gitleaks
chmod +x /usr/local/bin/gitleaks

# --- 验证安装 ---
semgrep --version
gitleaks version

如果未安装 semgrep 或 gitleaks,扫描仍可运行,但对应工具的结果中会包含 available: false 及安装提示。

4. 在 Claude Desktop 中配置

打开 Claude Desktop 配置文件:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

  • Windows: %APPDATA%\Claude\claude_desktop_config.json

  • Linux: ~/.config/Claude/claude_desktop_config.json

添加以下配置块:

{
  "mcpServers": {
    "luvv-security-scanner": {
      "command": "node",
      "args": [
        "/Users/你的用户名/luvv-mcp-server/dist/main.js"
      ]
    }
  }
}

实际路径示例(macOS 用户 zhangsan):

{
  "mcpServers": {
    "luvv-security-scanner": {
      "command": "node",
      "args": [
        "/Users/zhangsan/luvv-mcp-server/dist/main.js"
      ]
    }
  }
}

实际路径示例(Windows 用户 Administrator):

{
  "mcpServers": {
    "luvv-security-scanner": {
      "command": "node",
      "args": [
        "C:\\Users\\Administrator\\luvv-mcp-server\\dist\\main.js"
      ]
    }
  }
}

配置完成后,重启 Claude Desktop。在对话中输入"帮我扫描 /path/to/project 的安全问题",Claude 会自动调用 run_security_scan 工具。

5. 验证 MCP 连接

启动 Claude Desktop 后,检查工具栏是否出现新工具图标(锤子),或在对话中尝试:

请列出你当前可用的 MCP 工具

如果看到 run_security_scan,说明连接成功。


Docker 运行方式

Docker 镜像已预装 semgrep + gitleaks,适合环境隔离或 CI/CD 集成。

构建镜像

docker compose build

交互式运行(手动测试)

# 启动容器并进入交互式 stdio 模式
echo '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | \
  docker compose run --rm -T mcp

通过管道发送扫描请求

# 构造一个扫描请求的 MCP 消息
cat <<'JSONRPC' | docker compose run --rm -T mcp
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"run_security_scan","arguments":{"target_path":"/scan"}}}
JSONRPC

扫描本地代码

# 将本地项目挂载为 /scan
SCAN_TARGET=$(pwd) docker compose run --rm mcp

输出示例

{
  "target_path": "/home/user/my-project",
  "resolved_path": "/home/user/my-project",
  "scan_time": "2026-06-13T12:00:00.000Z",
  "duration_ms": 12345,
  "tools": {
    "semgrep": {
      "available": true,
      "results": {
        "results": [
          {
            "check_id": "python.lang.security.audit.dangerous-subprocess-use",
            "path": "src/utils.py",
            "start": { "line": 42 },
            "end": { "line": 42 },
            "extra": {
              "severity": "ERROR",
              "message": "Detected subprocess function without a static string"
            }
          }
        ]
      }
    },
    "gitleaks": {
      "available": true,
      "results": [
        {
          "RuleID": "generic-api-key",
          "Description": "Generic API Key",
          "File": "config.py",
          "StartLine": 15,
          "Secret": "***REDACTED***",
          "Match": "sk_live_xxxxxxxxxxxx"
        }
      ]
    }
  },
  "summary": {
    "total_findings": 2,
    "semgrep_findings": 1,
    "gitleaks_findings": 1
  },
  "environment": {
    "node_version": "v20.14.0",
    "platform": "linux",
    "hostname": "dev-machine"
  }
}

当工具未安装时:

{
  "tools": {
    "semgrep": {
      "available": false,
      "error": "semgrep 未安装或不在 PATH 中",
      "install_hint": "# macOS\nbrew install semgrep\n\n# Linux (pip)\npip install semgrep"
    }
  }
}

环境变量

参见 .env.example,可复制为 .env 后修改:

变量

默认值

说明

SEMGREP_CONFIG

auto

semgrep 规则集(p/security-auditp/owasp-top-ten 等)

SEMGREP_TIMEOUT

300

semgrep 超时时间(秒)

GITLEAKS_TIMEOUT

120

gitleaks 超时时间(秒)

LOG_LEVEL

info

日志级别(debug/info/warn/error)

INCLUDE_RAW_OUTPUT

false

是否返回完整原始输出


项目结构

luvv-mcp-server/
├── src/
│   ├── main.ts               # CLI 入口,按参数路由传输模式
│   ├── server.ts              # createServer() 工厂函数
│   ├── tools/
│   │   ├── index.ts           # registerAllTools() 汇总
│   │   └── run-security-scan.ts  # 安全扫描工具定义与处理器
│   ├── transports/
│   │   └── stdio.ts           # stdio 传输启动器(+ 信号处理)
│   └── lib/
│       ├── logger.ts          # 结构化 stderr 日志
│       ├── executor.ts        # spawn 封装 + 路径校验
│       └── scanner.ts         # semgrep + gitleaks 编排
├── tests/
│   └── run-security-scan.test.ts  # 单元测试
├── dist/                      # 编译产物(npm run build)
├── vitest.config.ts
├── package.json
├── tsconfig.json
├── Dockerfile
├── docker-compose.yml
├── .env.example
└── README.md

License

MIT

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