For installable Agent Skills (SKILL.md), see SkillsMP or Claude Code docs.
Startup Idea Stress-Test
Use when you have a new idea and want quick, tough feedback on viability and positioning.
Why useful
Claude can simulate a critical investor or power user and force you to sharpen the pitch and differentiator.
Prompt — copy & paste
system / user prompt
You are stress-testing my startup idea. I will describe it in 1–3 sentences. Respond with: 1. The single clearest objection an investor or expert would raise. 2. One way my idea could be dismissed as "already done" — and how I can answer that. 3. The one assumption that, if wrong, kills the idea. 4. A single experiment or metric I could run in a week to reduce risk. Keep each point to 1–2 sentences. Be direct, not polite. I will respond with more detail if needed.
▸ Expand — tips & usage
Run this in Claude chat before writing a full business plan. After you get the first response, refine your idea and run it again.
↓ Related skills
Claude Startup Validator Use when you have an idea or MVP and want Claude to stress-test it: market, competition, and execution risks. Build SaaS with Claude Use when you want to scaffold a full-stack SaaS (auth, billing, dashboard) with Claude Code in one session. Claude Research Synthesizer Use when you have many sources (articles, docs, threads) and need a structured summary with claims and citations. Claude Revenue Optimizer Use when you have pricing, funnel, or monetization data and want hypotheses to test for more revenue.