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CLI Secure
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CLI Secure

A secure MCP server implementation for executing controlled command-line operations with comprehensive security features.
SecurityDeveloper tools#Command-line security#MCP protocol#Controlled execution.Python
2.5 points
81

What is the CLI MCP Server?

The CLI MCP Server is a secure command-line execution server that allows specific commands to be run securely in a controlled environment. It prevents the execution of malicious or dangerous commands through strict permission control and verification mechanisms.

How to use the CLI MCP Server?

Set the allowed commands and directories by configuring environment variables, and then send command requests via the MCP protocol. The server will verify and securely execute the allowed commands.

Use cases

Suitable for scenarios where restricted command-line access needs to be provided for AI assistants or automation tools, such as non-sensitive operations like file browsing and log viewing.

Main features

Secure command executionEnsure that only allowed commands are executed through command whitelisting and path verification
Configurable rulesAllows setting of allowed commands, parameters, and working directories
Injection attack protectionPrevent command injection and path traversal attacks
Execution controlSupports timeout settings and command length limits

Advantages and limitations

Advantages
Provide fine-grained command execution control
Prevent accidental or malicious dangerous operations
Detailed error reports help troubleshoot problems
Support asynchronous operations to improve efficiency
Limitations
Does not support shell operators (e.g., |, >, etc.)
Requires pre-configuration of the allowed command list
Execution environment is restricted to the specified directory

How to use

Install the server
Install the CLI MCP Server via Smithery
Configure environment variables
Set allowed commands, directories, and other security parameters
Integrate into Claude Desktop
Modify the configuration file to add MCP server settings
Send a command request
Send a command execution request via the MCP protocol

Usage examples

View project filesAsk the AI assistant to list the contents of the project directory
View log filesAsk the AI assistant to display the contents of a specific log file

Frequently Asked Questions

How to allow more commands?
Why is my command rejected?
How to debug server issues?

Related resources

MCP Protocol Documentation
Official documentation for the Model Context Protocol
MCP Inspector Tool
A tool for debugging MCP servers
Smithery Registration
Registration page for the CLI MCP Server
Installation
Copy the following command to your Client for configuration
{
  "mcpServers": {
    "cli-mcp-server": {
      "command": "uv",
      "args": [
        "--directory",
        "<path/to/the/repo>/cli-mcp-server",
        "run",
        "cli-mcp-server"
      ],
      "env": {
        "ALLOWED_DIR": "</your/desired/dir>",
        "ALLOWED_COMMANDS": "ls,cat,pwd,echo",
        "ALLOWED_FLAGS": "-l,-a,--help,--version",
        "MAX_COMMAND_LENGTH": "1024",
        "COMMAND_TIMEOUT": "30"
      }
    }
  }
}

{
  "mcpServers": {
    "cli-mcp-server": {
      "command": "uvx",
      "args": [
        "cli-mcp-server"
      ],
      "env": {
        "ALLOWED_DIR": "</your/desired/dir>",
        "ALLOWED_COMMANDS": "ls,cat,pwd,echo",
        "ALLOWED_FLAGS": "-l,-a,--help,--version",
        "MAX_COMMAND_LENGTH": "1024",
        "COMMAND_TIMEOUT": "30"
      }
    }
  }
}
Note: Your key is sensitive information, do not share it with anyone.
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