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MladenSU/cli-mcp-server

A secure Model Context Protocol (MCP) server implementation for executing controlled command-line operations with comprehensive security features.

View on GitHub75

Install

uvx cli-mcp-server

Client configuration

{
  "mcpServers": {
    "cli-mcp-server": {
      "command": "uvx",
      "args": [
        "cli-mcp-server"
      ],
      "env": {
        "ALLOWED_DIR": "<ALLOWED_DIR>",
        "ALLOWED_COMMANDS": "<ALLOWED_COMMANDS>",
        "ALLOWED_FLAGS": "<ALLOWED_FLAGS>",
        "MAX_COMMAND_LENGTH": "<MAX_COMMAND_LENGTH>",
        "COMMAND_TIMEOUT": "<COMMAND_TIMEOUT>",
        "ALLOW_SHELL_OPERATORS": "<ALLOW_SHELL_OPERATORS>"
      }
    }
  }
}

Environment variables

ALLOWED_DIRALLOWED_COMMANDSALLOWED_FLAGSMAX_COMMAND_LENGTHCOMMAND_TIMEOUTALLOW_SHELL_OPERATORS
GitHub stars
75
Author
@MladenSU
Category
Developer Tools, Security
License
MIT
Updated
Oct 6, 2026

Features

  • Secure command execution with strict validation

  • Configurable command and flag whitelisting with 'all' option

  • Path traversal prevention and validation

  • Shell operator injection protection

  • Execution timeouts and length limits

  • Detailed error reporting

  • Async operation support

  • Working directory restriction and validation

Tools (2)

  • run_command

    Executes whitelisted CLI commands within allowed directories.

  • show_security_rules

    Displays current security configuration and restrictions, including:

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

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