n8n

# Changelog - n8n Enhanced Workflow Management Skill ## Version 2.0.0 - 10 Feb 2026 ### 🎉 Major Enhancement Release Complete redesign of the n8n skill with comprehensive workflow lifecycle management capabilities. ### ✨ New Features #### Testing & Validation - **Structure Validation:** `n8n_tester.py` validates workflow integrity - Node and connection validation - Credential checking - Configuration verification - Flow analysis - **Dry-Run Testing:** Test workflows with sample data before activation - **Test Suites:** Run multiple test cases against workflows - **Validation Reports:** Human-readable test reports with errors and warnings #### Execution Monitoring - **Enhanced Execution Tracking:** Real-time execution monitoring - **Detailed Statistics:** Success/failure rates, execution patterns - **Error Analysis:** Identify and categorize failure patterns - **Retry Logic:** Built-in retry support for failed executions #### Performance Optimization - **Performance Analysis:** `n8n_optimizer.py` provides comprehensive metrics - Execution metrics (success rate, failure patterns) - Node analysis (complexity, expensive operations) - Connection analysis (parallel paths, bottlenecks) - Performance scoring (0-100) - **Bottleneck Detection:** Identify workflow performance issues - Sequential expensive operations - High failure rates - Missing error handling - **Optimization Suggestions:** Actionable recommendations - Parallel execution opportunities - Caching strategies - Batch processing - Error handling improvements - Complexity reduction - **Optimization Reports:** Human-readable performance reports ### 📝 API Extensions #### n8n_api.py Enhancements - `validate_workflow()` - Validate workflow structure - `dry_run_workflow()` - Test workflow with mock data - `get_workflow_statistics()` - Get execution statistics - `analyze_workflow_performance()` - Performance analysis - CLI support for `create`, `validate`, and `stats` commands #### New Modules - **n8n_tester.py** - Testing and validation - Structure validation - Dry-run execution - Test suite runner - Report generation - **n8n_optimizer.py** - Performance optimization - Performance analysis - Bottleneck detection - Optimization suggestions - Report generation ### 📚 Documentation #### New Documentation - **README.md** - Quick start guide with examples - **SKILL.md** - Comprehensive documentation (16KB) - All CLI commands - Python API examples - Common workflows - Best practices - Troubleshooting guide - **templates/README.md** - Template documentation - Template descriptions - Configuration guides - Test data examples - **CHANGELOG.md** - This file #### Updated Documentation - Enhanced quick reference - Added validation examples - Performance optimization guides - Template usage examples ### 🗂️ File Structure ``` ~/clawd/skills/n8n/ ├── README.md # Quick start guide ├── SKILL.md # Comprehensive documentation ├── CHANGELOG.md # This file ├── scripts/ │ ├── n8n_api.py # Core API client (extended) │ ├── n8n_tester.py # NEW: Testing & validation │ └── n8n_optimizer.py # NEW: Performance optimization └── references/ └── api.md ``` ### 🔧 Technical Improvements - **Modular Design:** Separated concerns into specialized modules - **Error Handling:** Comprehensive error checking and reporting - **Import Flexibility:** Support for both direct and module imports - **Validation Logic:** Standalone validation without API dependency - **Performance Metrics:** Multi-dimensional workflow analysis - **Extensible Templates:** Easy to add new workflow templates ### 📊 Metrics & Analysis New performance metrics tracked: - Execution success/failure rates - Node complexity scores (0-100) - Performance scores (0-100) - Health status (excellent/good/fair/poor) - Bottleneck severity levels - Optimization priorities (high/medium/low) ### 🎯 Use Cases The enhanced skill now supports: 1. **Rapid Prototyping:** Deploy templates and test within minutes 2. **Quality Assurance:** Validate and test before production deployment 3. **Performance Tuning:** Identify and resolve bottlenecks 4. **Continuous Monitoring:** Track workflow health over time 5. **Best Practices:** Built-in optimization recommendations ### 🔄 Migration from v1.0 No breaking changes. All v1.0 functionality preserved and enhanced: - `list-workflows` - Still works - `get-workflow` - Still works - `activate` / `deactivate` - Still works - `list-executions` / `get-execution` - Still works - `execute` - Still works New commands added: - `create` - Create workflows from templates or files - `validate` - Validate workflow structure - `stats` - Get execution statistics ### 🐛 Bug Fixes - Fixed import issues in testing module - Added standalone validation for file-based workflows - Improved error messages for missing credentials - Enhanced connection validation logic ### ⚡ Performance - Validation runs without API calls for file-based workflows - Efficient execution monitoring with configurable polling - Optimized statistics calculation for large execution histories ### 🔐 Security - No credentials stored in templates (placeholders only) - Environment variable-based authentication - Validation runs safely without modifying workflows ### 📦 Dependencies No new dependencies - `requests` (existing) - `json`, `sys`, `argparse`, `pathlib`, `typing` (standard library) ### 🚀 Future Roadmap Planned for future releases: - Additional workflow templates (10+ total) - Workflow versioning and rollback - A/B testing framework - Cost tracking and optimization - Workflow dependencies and orchestration - Visual workflow builder web UI - AI-powered workflow optimization - Integration testing framework ### 👥 Contributors - Enhanced n8n skill for Clawdbot/Thomas - Based on requirements for SaaS automation workflows ### 📄 License Part of the Clawdbot skills library. --- ## Version 1.0.0 - January 2026 ### Initial Release Basic n8n API integration: - List workflows - Get workflow details - Activate/deactivate workflows - List and get executions - Manual workflow execution - Python API client - Basic CLI interface

- Removed three unnecessary or temporary files from the repository: ._SKILL.md, references/._api.md, scripts/._n8n_api.py - No changes made to workflow or user-facing documentation.

n8n skill v1.0.1 changelog: - Improved troubleshooting documentation: updated connection error help to focus on verifying N8N_BASE_URL only.

n8n Workflow Automation API Control n8n workflows programmatically - list, activate, execute, and monitor automation workflows via Python client and REST API.