n8n-mcp/docs/IMPLEMENTATION_ROADMAP.md

n8n-MCP Implementation Roadmap

✅ Completed Features

1. Core MCP Server Implementation

• Basic MCP server with stdio transport
• Tool handlers for n8n workflow operations
• Resource handlers for workflow data
• Authentication and error handling

2. n8n Integration

• n8n API client for workflow management
• MCP<->n8n data bridge for format conversion
• Workflow execution and monitoring

3. Node Source Extraction

• Extract source code from any n8n node
• Handle pnpm directory structures
• Support for AI Agent node extraction
• Bulk extraction capabilities

4. Node Storage System

• In-memory storage service
• Search functionality
• Package statistics
• Database export format

🚧 Next Implementation Steps

Phase 1: Database Integration (Priority: High)

1. Real Database Backend

   • Add PostgreSQL/SQLite support
   • Implement proper migrations
   • Add connection pooling
   • Transaction support

2. Enhanced Storage Features

   • Version tracking for nodes
   • Diff detection for updates
   • Backup/restore functionality
   • Data compression

Phase 2: Advanced Search & Analysis (Priority: High)

1. Full-Text Search

   • Elasticsearch/MeiliSearch integration
   • Code analysis and indexing
   • Semantic search capabilities
   • Search by functionality

2. Node Analysis

   • Dependency graph generation
   • Security vulnerability scanning
   • Performance profiling
   • Code quality metrics

Phase 3: AI Integration (Priority: Medium)

1. AI-Powered Features

   • Node recommendation system
   • Workflow generation from descriptions
   • Code explanation generation
   • Automatic documentation

2. Vector Database

   • Node embeddings generation
   • Similarity search
   • Clustering similar nodes
   • AI training data export

Phase 4: n8n Node Development (Priority: Medium)

1. MCPNode Enhancements

   • Dynamic tool discovery
   • Streaming responses
   • File upload/download
   • WebSocket support

2. Custom Node Features

   • Visual configuration UI
   • Credential management
   • Error handling improvements
   • Performance monitoring

Phase 5: API & Web Interface (Priority: Low)

1. REST/GraphQL API

   • Node search API
   • Statistics dashboard
   • Webhook notifications
   • Rate limiting

2. Web Dashboard

   • Node browser interface
   • Code viewer with syntax highlighting
   • Search interface
   • Analytics dashboard

Phase 6: Production Features (Priority: Low)

1. Deployment

   • Kubernetes manifests
   • Helm charts
   • Auto-scaling configuration
   • Health checks

2. Monitoring

   • Prometheus metrics
   • Grafana dashboards
   • Log aggregation
   • Alerting rules

🎯 Immediate Next Steps

1. Database Integration (Week 1-2)

   // Add to package.json
   "typeorm": "^0.3.x",
   "pg": "^8.x"
   
   // Create entities/Node.entity.ts
   @Entity()
   export class Node {
     @PrimaryGeneratedColumn('uuid')
     id: string;
   
     @Column({ unique: true })
     nodeType: string;
   
     @Column('text')
     sourceCode: string;
     // ... etc
   }
   

2. Add Database MCP Tools (Week 2)

   // New tools:
   - sync_nodes_to_database
   - query_nodes_database
   - export_nodes_for_training
   

3. Create Migration Scripts (Week 2-3)

   npm run migrate:create -- CreateNodesTable
   npm run migrate:run
   

4. Implement Caching Layer (Week 3)

   • Redis for frequently accessed nodes
   • LRU cache for search results
   • Invalidation strategies

5. Add Real-Time Updates (Week 4)

   • WebSocket server for live updates
   • Node change notifications
   • Workflow execution streaming

📊 Success Metrics

• Extract and store 100% of n8n nodes
• Search response time < 100ms
• Support for 10k+ stored nodes
• 99.9% uptime for MCP server
• Full-text search accuracy > 90%

🔗 Integration Points

1. n8n Community Store

   • Sync with community nodes
   • Version tracking
   • Popularity metrics

2. AI Platforms

   • OpenAI fine-tuning exports
   • Anthropic training data
   • Local LLM integration

3. Development Tools

   • VS Code extension
   • CLI tools
   • SDK libraries

📝 Documentation Needs

• API reference documentation
• Database schema documentation
• Search query syntax guide
• Performance tuning guide
• Security best practices

This roadmap provides a clear path forward for the n8n-MCP project, with the most critical next step being proper database integration to persist the extracted node data.