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Writing North Star Metrics

refoundai/lenny-skills

This framework distills insights from 27 product leaders into a practical guide for choosing your primary success metric. It walks you through defining what customer value actually looks like (not revenue), testing if your metric is simple enough for anyone to discuss, and adding guardrails to prevent gaming. The questions are sharp: "What would break if you gamed this metric?" The advice is opinionated: avoid retention as a goal because it's too lagging, skip composite scores nobody understands, measure value delivered rather than extracted. Use this when you're drowning in dashboards or watching teams optimize for different things. It won't pick your metric for you, but it gives you a clear lens for evaluating candidates.

skills.sh installs
1.6K
GitHub stars
1.5K
last updated
Aug 21, 2026
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Install

$ npx -y skills add refoundai/lenny-skills --skill writing-north-star-metrics --agent claude-code

Installs into .claude/skills of the current project.

Files

This framework distills insights from 27 product leaders into a practical guide for choosing your primary success metric. It walks you through defining what customer value actually looks like (not revenue), testing if your metric is simple enough for anyone to discuss, and adding guardrails to prevent gaming. The questions are sharp: "What would break if you gamed this metric?" The advice is opinionated: avoid retention as a goal because it's too lagging, skip composite scores nobody understands, measure value delivered rather than extracted. Use this when you're drowning in dashboards or watching teams optimize for different things. It won't pick your metric for you, but it gives you a clear lens for evaluating candidates.

Browse the repository on GitHub

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Details

Repository
github.com/refoundai/lenny-skills
Category
Documentation

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