I decided to dive deep into understanding how people build n8n workflows, so I grabbed 2,050 public workflows and ran them through some analysis tools. I used AI to help me go through all the JSON files and create a comprehensive breakdown of what I found.
The results were pretty eye-opening. Here are the main takeaways from analyzing these workflows:
What I Discovered
Major Problem Areas
Error Handling Crisis: Almost all workflows (97%) don’t have any error handling at all. This means when something breaks, you just won’t know about it.
Security Issues: Found 320 public webhooks with no authentication and 152 workflows making HTTP calls instead of secure HTTPS.
Efficiency Problems: About 7% of workflows have unused nodes just sitting there, and many are making API calls inside loops which kills performance.
Key Numbers
- Total workflows analyzed: 2,050
- Total nodes found: 29,363
- Average nodes per workflow: 14.3
- AI/ML workflows: 34.7% of all workflows
- Workflows with proper error handling: Only 3%
Common Patterns I Noticed
Most popular node combinations:
- Set → HTTP Request (used 379 times)
- HTTP Request → HTTP Request (350 times)
- If → Set (267 times)
The Sticky Notes node is used most frequently (7,024 times), which shows people are trying to document their workflows.
Recommendations for Better Workflows
- Add Error Triggers: Every workflow should have one connected to notifications
- Secure Your Webhooks: Always use authentication
- Use HTTPS Only: Never send data over plain HTTP
- Clean Up: Remove unused nodes and optimize your flows
- Document Everything: Use those sticky notes to explain what your workflow does
AI Workflow Insights
Since over 30% of workflows are AI-related, I found some interesting patterns:
- 346 workflows use agent-based approaches
- 267 use multiple AI models
- 201 have memory systems built in
- Surprisingly, none use vector databases for RAG patterns
Security Checklist
Based on the vulnerabilities I found, here’s what every workflow should have:
- No hardcoded API keys
- Authentication on all webhooks
- HTTPS for all external calls
- Proper credential management
- Error messages that don’t leak sensitive info
Performance Tips
- Batch your API calls instead of looping
- Remove unused nodes
- Use parallel processing where possible
- Keep workflows under 10 seconds execution time
- Cache API responses when you can
Quick Wins
If you want to improve your workflows right now:
- Add an Error Trigger node to catch failures
- Enable authentication on any public webhooks
- Switch HTTP calls to HTTPS
- Remove any unused nodes
- Add some documentation with Sticky Notes
This analysis really opened my eyes to how much room there is for improvement in workflow design. Most people are building functional workflows but missing crucial elements like error handling and security.
Has anyone else done similar analysis on their workflows? Would love to hear what patterns you’ve noticed in your own automation setups.