What problem does it solve? Choosing the right structure for an n8n workflow is hard when you face webhook processing, API integration, database sync, AI agents, or scheduled jobs without a proven blueprint. This Skill provides five core architectural patterns so you can plan, build, validate, and deploy workflows with a consistent structure instead of improvising node by node. ## Core Features & Use Cases - Five Core Patterns: Webhook Processing, HTTP API Integration, Database Operations, AI Agent Workflow, and Scheduled Tasks, each with trigger-to-output structure. - Selection Guide & Checklist: Decision criteria for picking a pattern plus a four-phase checklist covering planning, implementation, validation, and deployment. - Data Flow & Gotchas: Linear, branching, parallel, loop, and error-handler flow patterns, plus fixes for common issues like webhook payload nesting under $json.body and expression syntax errors. - Use Case: You need to sync new Postgres records to MySQL every 15 minutes. The Skill points you to the Database Operations pattern: Schedule trigger, query, transform, write, then verify, with an error handler attached. ## Quick Start Ask the AI to design an n8n workflow for your use case, for example a webhook that receives Stripe payments and posts a Slack notification, using the appropriate core pattern.