n8n-mcp-tools-expert

Comprehensive guide for building n8n workflows using MCP tools with node discovery, validation, and workflow management. Master guide for using n8n-mcp MCP server tools to build workflows. n8n-mcp provides tools organized into categories: Workflow : Example : Common pattern : search → get_node (18s average) Workflow : Common pattern : validate → fix → validate (23s thinking, 58s fixing per cycle) Workflow : Common pattern : iterative updates (56s average between edits) Two different formats for different tools! Tools that use this : Tools that use this : Problem : "Node not found" error Problem : Huge payload, slower response, token waste When to use detail="full" : Better alternatives : Problem : Too many false positives OR missing real errors Profiles : What happens : ALL nodes sanitized on ANY workflow update Auto-fixes : Cannot fix : Problem : Complex sourceIndex calculations for multi-output nodes Old way (manual): New way (smart parameters): Problem : Using parameters instead of updates Problem : Credentials not attaching to nodes Problem : Less helpful tool responses Common workflow : 18s average between steps Typical cycle : 23s thinking, 58s fixing Most used update tool : 99.0% success rate, 56s average between edits See SEARCH_GUIDE.md for: See VALIDATION_GUIDE.md for: See WORKFLOW_GUIDE.md for: Unified tool for managing n8n data tables and rows. Supports CRUD...