Awesome Linux MCP Server

# Linux MCP Server - Implementation Plan ## Overview This document outlines the step-by-step implementation plan for creating a Linux MCP Server that provides AI models with secure control over remote Linux servers and browser automation capabilities. The server will run as a background TypeScript or Python service and connect to remote Linux systems via SSH. ## MVP Requirements (16 Tools) ### Command Execution Tools 1. `execute_command` - Run single terminal commands securely via SSH 2. `execute_script` - Execute bash scripts with command-line arguments 3. `create_bash_script` - Create and deploy new bash scripts to remote servers ### File System Tools 4. `list_directory` - List directory contents with detailed information ### System Monitoring Tools 5. `get_system_info` - Get comprehensive system information (CPU, memory, disk usage) ### Browser Automation Tools 6. `puppeteer_navigate` - Navigate browser to specified URLs 7. `puppeteer_screenshot` - Capture screenshots of web pages 8. `puppeteer_click` - Click on web page elements 9. `puppeteer_hover` - Hover over web page elements 10. `puppeteer_fill` - Fill form input fields 11. `puppeteer_select` - Select options from dropdown menus 12. `puppeteer_evaluate` - Execute JavaScript in browser context 13. `puppeteer_get_console_logs` - Access browser console output 14. `puppeteer_get_screenshot` - Retrieve current browser screenshot 15. `puppeteer_get_network_details` - Monitor network requests and responses ### MCP Resources 16. Browser console logs, screenshots, and network data as MCP resources ## Implementation Phases ### Phase 1: Project Setup & Core Infrastructure (Week 1) #### Day 1-2: Project Initialization - [ ] Create project directory structure - [ ] Initialize Git repository - [ ] Set up Python virtual environment - [ ] Install base dependencies (mcp, paramiko, pyppeteer, psutil) - [ ] Create basic project files (README.md, requirements.txt, .gitignore) - [ ] Set up logging configuration #### Day 3-4: MCP Server Foundation - [ ] Create basic MCP server structure with FastMCP - [ ] Implement MCP protocol compliance - [ ] Set up configuration management (environment variables) - [ ] Create basic error handling framework - [ ] Implement stdio transport layer #### Day 5-7: SSH Infrastructure - [ ] Implement SSH connection management - [ ] Add SSH key and password authentication - [ ] Create connection pooling for performance - [ ] Implement connection health monitoring - [ ] Add SSH timeout and error handling ### Phase 2: Core Command Execution Tools (Week 2) #### Day 1-2: execute_command Tool - [ ] Implement basic command execution via SSH - [ ] Add command validation and sanitization - [ ] Implement timeout protection (30 seconds default) - [ ] Add output capture (stdout, stderr, exit codes) - [ ] Create comprehensive error handling #### Day 3-4: Script Management Tools - [ ] Implement `execute_script` with argument passing - [ ] Create `create_bash_script` with SFTP file transfer - [ ] Add script permission management (chmod +x) - [ ] Implement script validation - [ ] Add error handling for script operations #### Day 5-7: File System Operations - [ ] Implement `list_directory` with detailed output - [ ] Add recursive listing option - [ ] Implement filtering capabilities - [ ] Add error handling for permission issues - [ ] Test with various directory structures ### Phase 3: System Monitoring & Browser Setup (Week 3) #### Day 1-2: System Information Tool - [ ] Implement `get_system_info` with CPU monitoring - [ ] Add memory usage statistics - [ ] Implement disk usage analysis - [ ] Add system overview (OS, kernel, uptime) - [ ] Format output for readability #### Day 3-4: Browser Automation Foundation - [ ] Set up Puppeteer integration - [ ] Implement browser initialization - [ ] Create browser session management - [ ] Add headless mode configuration - [ ] Implement browser cleanup on exit #### Day 5-7: Basic Browser Tools - [ ] Implement `puppeteer_navigate` with timeout - [ ] Create `puppeteer_screenshot` for full page - [ ] Add element-specific screenshot capability - [ ] Implement viewport configuration - [ ] Add error handling for navigation failures ### Phase 4: Advanced Browser Automation (Week 4) #### Day 1-2: Browser Interaction Tools - [ ] Implement `puppeteer_click` with delay - [ ] Create `puppeteer_hover` functionality - [ ] Add `puppeteer_fill` for form inputs - [ ] Implement `puppeteer_select` for dropdowns - [ ] Add interaction validation #### Day 3-4: Browser Evaluation & Monitoring - [ ] Implement `puppeteer_evaluate` for JavaScript execution - [ ] Create console log monitoring (`puppeteer_get_console_logs`) - [ ] Add screenshot retrieval (`puppeteer_get_screenshot`) - [ ] Implement network monitoring (`puppeteer_get_network_details`) - [ ] Add real-time data collection #### Day 5-7: MCP Resources Implementation - [ ] Create console log MCP resource - [ ] Implement screenshot MCP resource - [ ] Add network details MCP resource - [ ] Test resource accessibility - [ ] Validate resource data formats ### Phase 5: Testing, Integration & Deployment (Week 5) #### Day 1-2: Unit Testing - [ ] Create unit tests for all tools - [ ] Test error conditions and edge cases - [ ] Validate SSH connection handling - [ ] Test browser automation scenarios - [ ] Add mock testing for external dependencies #### Day 3-4: Integration Testing - [ ] Test complete tool workflows - [ ] Validate MCP protocol compliance - [ ] Test with real SSH servers - [ ] Perform browser automation testing - [ ] Load testing for concurrent operations #### Day 5-7: Deployment & Documentation - [ ] Create Claude Desktop configuration - [ ] Write comprehensive README - [ ] Create usage examples - [ ] Set up environment configuration - [ ] Document troubleshooting procedures ## Technical Architecture ### Core Components #### 1. MCP Server Layer - FastMCP server implementation - Tool registration and management - MCP protocol compliance - Resource management - Error handling and logging #### 2. SSH Management Layer - Paramiko-based SSH client - Connection pooling and reuse - Authentication management (key/password) - Command execution with timeout - SFTP for file operations #### 3. Browser Automation Layer - Pyppeteer for headless Chrome control - Browser session management - Page interaction handling - Screenshot and data capture - Network monitoring #### 4. System Integration Layer - Local system resource monitoring - Configuration management - Environment variable handling - Logging and debugging ### Configuration Management #### Environment Variables ```bash SSH_HOST=remote-server.com SSH_PORT=22 SSH_USER=admin SSH_KEY_PATH=/path/to/key SSH_PASSWORD= # Alternative to key LOG_LEVEL=INFO BROWSER_HEADLESS=true ``` #### Configuration Validation - Required parameter checking - Path validation for SSH keys - Network connectivity testing - Browser dependency verification ## Security Considerations ### SSH Security - Key-based authentication preferred over passwords - SSH host key verification - Connection timeouts to prevent hanging - Command validation to prevent injection - Limited user permissions on remote systems ### Browser Security - Headless mode to prevent visible attacks - Isolated browser sessions - JavaScript execution sandboxing - Network request monitoring - Screenshot data sanitization ### General Security - Input validation and sanitization - Error message sanitization - Resource usage limits - Audit logging for all operations - Secure credential storage ## Testing Strategy ### Unit Testing - Individual tool functionality - Error condition handling - Parameter validation - Mock external dependencies ### Integration Testing - End-to-end tool workflows - SSH connection scenarios - Browser automation sequences - MCP protocol compliance ### Performance Testing - Concurrent operation handling - Memory and CPU usage monitoring - SSH connection efficiency - Browser operation performance ### Security Testing - Input validation testing - SSH security verification - Browser isolation testing - Error message leak testing ## Deployment Strategy ### Local Development - Python virtual environment - Local configuration files - Development logging - Debug mode capabilities ### Production Deployment - Systemd service configuration - Environment variable management - Log rotation setup - Monitoring integration ### Claude Desktop Integration - MCP server configuration - Tool discovery and registration - Error handling and user feedback - Update mechanism for new versions ## Risk Mitigation ### Technical Risks - **SSH Connection Issues**: Implement retry logic and connection pooling - **Browser Compatibility**: Test across different Chrome versions - **Memory Leaks**: Implement proper cleanup and resource management - **Performance Degradation**: Monitor and optimize resource usage ### Operational Risks - **Remote Server Access**: Document SSH setup requirements - **Browser Dependencies**: Include installation instructions - **Configuration Errors**: Provide validation and helpful error messages - **Version Compatibility**: Test with different MCP versions ### Security Risks - **Credential Exposure**: Never log credentials, use secure storage - **Command Injection**: Implement strict input validation - **Unauthorized Access**: SSH key permissions and access controls - **Browser Vulnerabilities**: Keep browser dependencies updated ## Success Metrics ### Technical Metrics - All 16 MVP tools implemented and functional - MCP protocol compliance verified - SSH connections stable and secure - Browser automation reliable - Performance within acceptable limits ### Quality Metrics - Comprehensive error handling - Clear documentation and examples - Security best practices implemented - Code maintainability and readability ### User Experience Metrics - Intuitive tool interfaces - Helpful error messages - Fast response times - Reliable operation ## Timeline and Milestones ### Week 1: Foundation - ✅ Project setup complete - ✅ MCP server framework implemented - ✅ SSH connection management working ### Week 2: Core Tools - ✅ Command execution tools complete - ✅ File system operations working - ✅ Basic testing completed ### Week 3: Monitoring & Browser - ✅ System monitoring implemented - ✅ Browser automation foundation complete - ✅ Basic browser tools working ### Week 4: Advanced Features - ✅ All browser automation tools complete - ✅ MCP resources implemented - ✅ Integration testing passed ### Week 5: Production Ready - ✅ Comprehensive testing completed - ✅ Documentation finished - ✅ Deployment ready ## Dependencies and Prerequisites ### Python Dependencies - `mcp>=1.2.0` - MCP protocol implementation - `paramiko>=3.4.0` - SSH client library - `pyppeteer>=1.0.2` - Browser automation - `psutil>=5.9.0` - System monitoring ### System Dependencies - Python 3.8+ - SSH client configured - Chrome/Chromium browser - Linux remote server access ### Development Dependencies - pytest for testing - black for code formatting - mypy for type checking - pre-commit hooks This implementation plan provides a structured approach to building a robust, secure, and feature-complete Linux MCP Server that meets all MVP requirements while establishing a foundation for future enhancements.