Root cause: AI agents were placing error handling properties inside `parameters` instead of at node level Major changes: - Enhanced workflow validator to check for ALL node-level properties (expanded from 6 to 11) - Added validation for onError property values and deprecation warnings for continueOnFail - Updated all examples to use modern error handling (onError instead of continueOnFail) - Added comprehensive node-level properties documentation in tools_documentation - Enhanced MCP tool documentation for n8n_create_workflow and n8n_update_partial_workflow - Added test script demonstrating correct node-level property usage Node-level properties now validated: - credentials, disabled, notes, notesInFlow, executeOnce - onError, retryOnFail, maxTries, waitBetweenTries, alwaysOutputData - continueOnFail (deprecated) Validation improvements: - Detects misplaced properties and provides clear fix examples - Shows complete node structure when properties are incorrectly placed - Type validation for all node-level boolean and string properties - Smart error messages with correct placement guidance 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
n8n-MCP Documentation
Welcome to the n8n-MCP documentation. This directory contains comprehensive guides for installation, configuration, and troubleshooting.
📚 Documentation Index
Getting Started
- Installation Guide - Comprehensive installation guide covering all methods
- Claude Desktop Setup - Step-by-step guide for Claude Desktop configuration
- Quick Start Tutorial - Basic overview and quick start instructions
Deployment
- HTTP Deployment Guide - Deploy n8n-MCP as an HTTP server for remote access
- Docker Deployment - Complete Docker deployment and configuration guide
- Release Guide - How to create releases and manage Docker tags
Reference
- Troubleshooting Guide - Solutions for common issues and errors
- HTTP Server Fix Documentation - Technical details of v2.3.2 HTTP server fixes
- Docker Optimization Guide - Reference for optimized Docker builds (~150MB)
- Changelog - Version history and release notes
🚀 Quick Links
For Users
For Developers
📋 Environment Variables
Key configuration options:
| Variable | Description | Default |
|---|---|---|
MCP_MODE |
Server mode: stdio or http |
stdio |
USE_FIXED_HTTP |
Use fixed HTTP implementation (v2.3.2+) | true |
AUTH_TOKEN |
Authentication token for HTTP mode | Required |
PORT |
HTTP server port | 3000 |
LOG_LEVEL |
Logging verbosity | info |
See Installation Guide for complete list.
🆘 Getting Help
- Check the Troubleshooting Guide
- Review HTTP Server Fix Documentation for v2.3.2 issues
- Open an issue on GitHub
📝 License
This project uses the Sustainable Use License. See LICENSE for details.