marketplace-fundamentals
Help users understand the core mechanics of marketplace businesses, from solving the cold start problem to maintaining quality and preventing platform leakage at scale.
npx skills add RefoundAI/lenny-skills --skill marketplace-fundamentals --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.
# Marketplace Fundamentals Build, bootstrap, and scale a self-sustaining ecosystem of buyers and sellers. Help the user with marketplace fundamentals using insights from 7 guests and posts across Lenny's Podcast and Newsletter. ## How to Help 1. **Diagnose the stage** - Identify if the user is in the bootstrapping, liquidity-seeking, or scaling phase of their marketplace. 2. **Pinpoint the hard side** - Help the user determine which side of the market (supply or demand) is the primary constraint and needs focus. 3. **Evaluate the value proposition** - Assess if the platform offers a 10x improvement in convenience, price, or variety compared to traditional alternatives. 4. **Select a growth strategy** - Recommend specific tactics like single-player mode, geographic constraints, or category niches to build density. ## Core Principles ### Nail the Value Exchange First Benjamin Lauzier: "If you don't have product market fit, and if you don't have a good enough growth strategy for at least one side of your marketplace, just forget about all this marketplace stuff. Focus on this core exchange of value, go deep with one side of the marketplace and see if you can rely on some crutch, some
- How to Help
- Core Principles
- Nail the Value Exchange First
- Build Standalone Value
- Empower Supply to Adapt
- Connect Independent Parties
- Aggregate and Assume Burden
- Stabilize with SaaS Tools
- Templates & Frameworks
- Questions to Help Users
- Common Mistakes to Flag
- Deep Dive
- Related Skills
What does the marketplace-fundamentals skill do?
Help users understand the core mechanics of marketplace businesses, from solving the cold start problem to maintaining quality and preventing platform leakage at scale.
How do I install it?
Run `npx skills add RefoundAI/lenny-skills --skill marketplace-fundamentals --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.