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Startup Idea Validator

Published by mohitagw15856 in pm-claude-skills

No known issues26 installs

What this skill does

Pressure-test a startup idea the way a sharp investor or co-founder would — problem, market, wedge, moat, why-now, and the fastest cheap way to test it. Use when asked to validate a startup idea, evaluate a business idea, stress-test a concept, or decide whether something is worth building. Produces an honest assessment with the strongest case, the killer risks, and the next experiment to run — not cheerleading.

Add Startup Idea Validator to your agent

Review the source and files first. When you are ready, copy the prompt instruction or use the CLI command supported by your environment.

Install with a prompt

Paste this into a compatible coding agent:

add this skill "startup-idea-validator" from https://github.com/mohitagw15856/pm-claude-skills

Install with the CLI

Run this command in a controlled environment after reviewing the repository:

npx skills add https://github.com/mohitagw15856/pm-claude-skills --skill startup-idea-validator

Skill instructions

Startup Idea Validator Skill

Most ideas die from one fatal flaw the founder won't see. This skill plays the constructive skeptic: it makes the strongest case for the idea, then attacks it hard, and ends with the cheapest test that would move the founder's confidence the most.

Working from a brief

Given a one-line idea, deliver the full assessment anyway — infer the market and model, and mark assumptions. Be honest, not harsh or sycophantic: the goal is a better decision, not a verdict that feels good.

Required Inputs

Ask for (if not already provided):

  • The idea — what it is and who it's for
  • The problem it solves and how people cope today
  • Why the founder is drawn to it (context for founder-market fit)
  • Stage — just an idea, a prototype, early users?

Output Format

1. Steel-man — the strongest case for

The most compelling version of why this could be big. Take it seriously.

2. Scorecard

DimensionReadNotes
Problem (real & painful?)🟢/🟡/🔴
Market (big & reachable?)🟢/🟡/🔴
Wedge (sharp entry point?)🟢/🟡/🔴
Why-now (what changed?)🟢/🟡/🔴
Moat (defensible over time?)🟢/🟡/🔴
Distribution (can you reach buyers cheaply?)🟢/🟡/🔴

3. The killer risks

The 2–3 things most likely to kill this. Be specific — name the assumption that, if false, ends it.

4. Closest competitors / why-not-already

Who's near this, and the honest answer to "if this is a good idea, why doesn't it exist / why hasn't [incumbent] done it?"

5. The next experiment

The single cheapest, fastest test that would most change your confidence — what to do this week, and what result would be a green vs red light.

6. Verdict

Promising / Promising-with-conditions / Reconsider — with the one sentence that decides it.

Quality Checks

  • Steel-mans the idea before critiquing it
  • Names specific killer assumptions, not generic "execution risk"
  • Answers "why doesn't this already exist?"
  • Ends with a concrete, cheap, this-week experiment

Anti-Patterns

  • Cheerleading (validating because the founder wants a yes)
  • Generic critique that applies to any startup
  • Recommending a 6-month build as the "test"
  • A verdict with no path forward

Example Trigger Phrases

  • "Validate a startup idea."
  • "Evaluate a business idea."
  • "Stress-test a concept."
  • "Decide whether something is worth building."

Files included

  • SKILL.md

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