This handles cohort analysis for tracking user groups over time, focusing on retention, churn, and lifetime value metrics. You'd reach for it when comparing acquisition channels, measuring how product changes affect different user segments, or spotting early churn signals. It's part of aj-geddes's useful-ai-prompts collection, which has solid traction at 245 stars and passes all security audits. The skill covers the standard cohort playbook: retention curves, LTV calculations, and cohort comparison tables. It's straightforward analysis work, nothing fancy, but that's exactly what you need when stakeholders want to know which user groups are sticking around and why.
npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill cohort-analysis