MCP Servers

system-command-mcp

Enables AI to execute registered system commands across platforms using a stable program + args interface, without requiring shell-specific syntax or tool discovery.

README

system-command-mcp

跨平台系统命令 MCP Server。AI 使用稳定的 program + args[] 接口调用已注册程序，不需要选择 Bash、PowerShell 或 cmd.exe，也不需要用 which、where、command -v、Get-Command 探测工具。

工具

system_exec

program 枚举在 Server 启动时根据当前 PATH 自动生成：

{
  "program": "git",
  "args": ["status", "--short"],
  "cwd": ".",
  "timeoutMs": 30000
}

参数不会经过 Shell 展开，$HOME、*.ts、&& 等会原样传递。

system_environment

返回平台、架构、根工作目录，以及逻辑程序名到真实可执行文件的映射。通常无需先调用；system_exec.program 的 Schema 已包含可用程序。

构建和测试

npm install
npm run build
npm test

需要 Node.js 20 或更高版本。

MCP 配置

{
  "mcpServers": {
    "system-command": {
      "command": "node",
      "args": [
        "/absolute/path/system-command-mcp/dist/src/cli.js",
        "--root",
        "/absolute/path/to/workspace"
      ]
    }
  }
}

默认逻辑程序名

git、node、npm、pnpm、yarn、bun
python：依次解析 python3、python
ripgrep：解析 rg
powershell：依次解析 pwsh、powershell

只暴露当前环境实际存在的程序。

当前限制

仅支持 stdio transport；
不支持管道、重定向、任意 Shell 脚本、交互式 TTY 或后台常驻进程；
默认超时 30 秒，stdout/stderr 分别保留最后 1 MiB；
cwd 必须位于 --root 内；
程序快照在启动时生成，环境变化后需重启 Server；
超时和取消只保证终止直接子进程，不保证清理完整进程树。

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