Building a Self-Healing Research Agent in n8n

Most agents repeat their mistakes. I built a self-healing research agent in n8n whose Discord users close the loop for it: every answer gets a human verdict, the verdict goes back into the same vector store the agent retrieves from, and the next run starts briefed on what worked and what didn't, with no fine-tuning anywhere, just one payload filter. I'll show the build live end-to-end, and you'll leave with an importable workflow.