You're getting SQL expertise, dashboard optimization, and KPI definition in one package. This handles the full analytics workflow from writing complex queries to building dashboards in Tableau, Power BI, or Looker. It knows the standard business metrics (churn, ARR, retention) and can help with cohort analysis and funnel tracking. The 144 installs and clean security audits suggest it's being used in production. Best for when you need to turn messy data into something executives will actually understand, or when you're staring at a gnarly join and need someone who lives in SQL. It automates reporting workflows too, which alone might justify adding it.
npx skills add https://github.com/404kidwiz/claude-supercode-skills --skill data-analyst