Hierarchy Of Marketplaces
Sarah Tavel's framework for building marketplaces that actually stick. The counterintuitive move is starting small: constrain to a "thimble" market until you hit minimum viable happiness on both sides, tip that market to saturation, then expand. Most founders chase GMV growth too early and end up with leaky buckets. Use this when launching a two-sided marketplace, diagnosing retention problems, or deciding if you're ready to expand geographically. The framework pushes you to track "happy GMV" instead of vanity metrics. If you're facing the classic chicken-and-egg problem or wondering why your marketplace hasn't reached escape velocity despite decent top-line numbers, this gives you a clear sequencing playbook.
- skills.sh installs
- 341
- GitHub stars
- 58
- last updated
- Aug 21, 2026
Install
$ npx -y skills add pmprompt/claude-plugin-product-management --skill hierarchy-of-marketplaces --agent claude-codeInstalls into .claude/skills of the current project.
Files
Domain Context
This skill implements a proven product management framework. The approach combines best practices from industry leaders and is designed for practical application in day-to-day PM work.
Input Requirements
- Context about your product, feature, or problem
- Relevant data, research, or constraints (recommended but optional)
- Clear articulation of what you're trying to achieve
Hierarchy of Marketplaces
What It Is
The Hierarchy of Marketplaces is a framework for building defensible marketplace businesses. The core insight: GMV is a vanity metric. Happy GMV is what matters.
Most marketplace founders race to grow GMV as fast as possible, spreading resources thin across markets and categories. This is backwards. The path to a dominant, profitable marketplace requires working through three levels in sequence:
- Focus - Constrain your market to a "thimble" and achieve minimum viable happiness
- Tip - Reach saturation in your focused market until it tips in your favor
- Dominate - Only then expand to adjacent markets and categories
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- Repository
- github.com/pmprompt/claude-plugin-product-management
- Category
- DevOps & CI/CD
- First seen
- Jun 3, 2026
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