skill_upgrade — 2026-03-17
Summary
Upgraded N8N skill v5.0→v6.0 by studying ARJ999/n8n-mcp repository (1,519 files, v2.37.3). Embedded complete n8n platform expertise: 23 property types, 14 AI connection types, 13 AI tool validators, typeVersion map for 55+ nodes, breaking changes registry, 4 validation profiles, 17 diff operations, expression patterns, auto-fix pipeline, 10 workflow patterns, RAG/streaming/fallback AI patterns. Created 2 new reference files (node_knowledge.md, ai_ecosystem.md), rewrote 3 existing files. Verified 16/16 knowledge domains with zero gaps.