Structured guidance for engineering growth systems — product-led growth motions, referral program design, viral loop mechanics, launch playbooks, retention loops, and affiliate programs — producing strategy documents, program specs, and spreadsheet-ready growth models. Recommends and designs; does not build product features or launch anything. Triggers on "/digital-marketing-pro:growth-engineering", "design a referral program", "how do we get a viral loop", "plan our Product Hunt launch", "reduce churn with re-engagement". Reads the brand profile, industry benchmarks, and campaign history; pairs with /digital-marketing-pro:cro for activation and onboarding optimization.
