liqiongyu/measuring-product-market-fit
Measure PMF: Sean Ellis survey, retention evidence, reference-customer signals, action plan. See also: retention-engagement (optimize post-PMF).
npx skills add https://github.com/liqiongyu/lenny_skills_plus --skill measuring-product-market-fit
Take liqiongyu/measuring-product-market-fit from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.