measuring-pmf
Help users objectively assess where their product stands on the PMF spectrum by triangulating qualitative feedback, quantitative retention benchmarks, and organic growth signals.
npx skills add RefoundAI/lenny-skills --skill measuring-pmf --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Measuring Product-Market Fit Transition from pushing your product to feeling the market pull it out of you. Help the user with measuring product-market fit using insights from 16 guests and posts across Lenny's Podcast and Newsletter. ## How to Help 1. **Diagnose the current stage** - Determine where the user is on the journey from pre-product validation to scalable growth. 2. **Apply quantitative benchmarks** - Evaluate cohort retention and Sean Ellis scores against industry standards. 3. **Analyze market pull** - Identify signals of organic demand versus founder-led momentum. 4. **Iterate based on feedback** - Help prioritize roadmap changes that specifically drive toward retention for the most passionate users. ## Core Principles ### Standardize Quantitative Validation Jag Duggal: "We rarely scale a project, a product we've launched, until we know the Sean Ellis score and we know that it's hit a threshold that we find really compelling." Use an objective threshold like the Sean Ellis score to validate fit before scaling. Set a strict target of at least 40 percent of users feeling very disappointed if the product disappeared. ### Look for Urgent Feedback Raaz Herzberg: "We real
- How to Help
- Core Principles
- Standardize Quantitative Validation
- Look for Urgent Feedback
- Listen Selectively
- Prioritize Retention Above All
- Differentiate Organic Pull
- Acknowledge Macro Shifts
- Sequence Your Optimization
- Templates & Frameworks
- Questions to Help Users
- Common Mistakes to Flag
- Deep Dive
- Related Skills
What does the measuring-pmf skill do?
Help users objectively assess where their product stands on the PMF spectrum by triangulating qualitative feedback, quantitative retention benchmarks, and organic growth signals.
How do I install it?
Run `npx skills add RefoundAI/lenny-skills --skill measuring-pmf --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From RefoundAI/lenny-skills, a repository with 1,215 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.