Build n8n Workflows With Proven Patterns

Builds n8n workflows programmatically by teaching Claude the correct patterns, syntax, and MCP tool usage so it avoids common pitfalls like validation error loops, incorrect expression syntax, and misconfigured nodes. Without these skills, Claude generates workflows that fail validation, use MCP tools inefficiently, or mishandle data structures like webhook payloads.

Once installed, skills activate automatically when you describe workflow tasks: ask to build a webhook workflow, and the Workflow Patterns skill routes you through architecture; ask to add expressions for data access, and Expression Syntax teaches the correct {{}} syntax and webhook data structure; ask to validate, and the Validation Expert interprets errors and guides fixes. Skills compose seamlessly: building a complete workflow typically activates 4-6 skills in sequence as you move from architecture to node configuration to validation.

Workflows validate cleanly and deploy first time because Claude understands correct n8n syntax, MCP tool parameters, architecture patterns, and error interpretation from the skills, eliminating the trial-and-error cycles that normally characterize workflow building.

Requires n8n-mcp MCP server installed and configured (.mcp.json). Skills assume Claude Code, Claude.ai, or Claude API with model context >= 100K tokens (hooks + router + multiple skills active simultaneously). Validation profiles and error catalogs are based on n8n v1.x+; some error types differ in legacy v0.x instances.

Hooks enforcement (PreToolUse, PostToolUse, SessionStart) only activates in Claude Code / Codex plugin; on Claude.ai with individual skill uploads, skills still activate by description but without proactive nudges. Self-Hosting skill is deployment-only and does not teach workflow building. Python Code node has no external libraries (no requests, pandas, numpy); JavaScript is recommended for 95% of use cases.