A 3-sub-agent competitive intel pipeline that produces an 8-page PDF brief every Friday at 6am — no human reads a single competitor page in between. The parent Claude agent dispatches a site-watcher, an ad-watcher, and a social-watcher, each returns a strict JSON schema, the parent synthesizes everything into a Markdown brief that Pandoc renders to PDF. The parent prompt, the three JSON contracts, the PDF template, and the failure modes that have actually cost me a brief.
A production-grade 4-agent content pipeline built in n8n. Each agent has a single job, a structured output, and a retry path. Includes the full workflow JSON you can paste into n8n, the prompts I use for each agent, the state schema that flows between them, and the failure modes that have actually cost me time.