This one gives Claude the toolkit of a senior growth marketer with actual frameworks you'd use in production. It walks through AARRR funnel analysis, runs ICE scoring for experiment prioritization, and includes a sample size calculator so your A/B tests actually reach significance. The workflow is checkpoint-driven: define your north star metric, map the funnel, find the biggest lever, then design experiments with proper hypothesis formatting. It comes with cohort analysis templates, CAC/LTV benchmarking tables, and viral coefficient math. Honest take: the troubleshooting section alone is worth it, especially the bit about why your K-factor is probably below 0.1. Built for when you need to move past vanity metrics and ship experiments that actually compound.
npx skills add https://github.com/borghei/claude-skills --skill growth-marketer