Helps you define UX metrics that actually connect design decisions to business outcomes instead of vanity numbers. Uses the HEART framework to balance behavioral metrics like task completion and error rates with attitudinal ones like NPS and satisfaction scores. The metric template forces you to specify data source, target, and owner, which is where most metrics efforts fall apart. Best for product teams who need to justify design work with data but don't want to drown in dashboards. Keeps you focused on 3-5 primary metrics and reminds you to set baselines before you start changing things, which sounds obvious but gets skipped constantly.
npx skills add https://github.com/owl-listener/designer-skills --skill metrics-definition