Customer Discovery

This walks you through Steve Blank's Customer Development methodology, the foundation under Lean Startup and Y Combinator's validation approach. It structures your business hypotheses into testable statements, designs validation experiments with clear success criteria, and provides interview frameworks for problem and solution discovery. The hypothesis prioritization matrix is especially practical, it forces you to identify fatal assumptions before you waste months building. Works best when you're pre-product or considering a pivot. The interview scripts keep you from pitching too early, which is the most common mistake founders make in customer conversations.

skills.sh installs: 295
GitHub stars: 150
last updated: Aug 21, 2026

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$ npx -y skills add guia-matthieu/clawfu-skills --skill customer-discovery --agent claude-code

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Customer Discovery

Systematically validate your business hypotheses before building anything. Master Steve Blank's Customer Development methodology that became the foundation of Lean Startup and YC's approach.

When to Use This Skill

Starting a new venture to avoid building something nobody wants
Before writing a line of code to validate problem-solution fit
Pivoting decisions to systematically test new directions
Early-stage fundraising to prove market validation
Product roadmap planning to prioritize based on validated customer needs
Entering new markets to understand unfamiliar customer segments

Methodology Foundation

Aspect	Details
Source	Steve Blank - "The Four Steps to the Epiphany" (2005)
Core Principle	"No business plan survives first contact with customers. Get out of the building."
Why This Matters	Startups fail because they build products nobody wants. Customer Discovery replaces guessing with systematic learning before you run out of money.