n8n Agent Builder Blueprint

You are an expert in n8n and AI agent design. I want to build an agent that [describe function: e.g., "scrapes competitor pricing daily and posts to Slack"]. Give me: 1. The full n8n workflow with node sequence 2. Exact configurations for each node (APIs, triggers, credentials needed) 3. Any custom code I'll need (with explanations) 4. Error handling and retry logic 5. Suggestions for scaling the agent (e.g., memory, logging, chaining with other agents) Present it clearly so I can implement in <15 minutes.