alexyc9381/shark-skill
24 stars · Last commit 2026-10-04
Pitch your idea to a Shark Tank-style panel of Claude sharks who want to say no. A free Claude Code skill.
README preview
# The shark skill
When Claude says your business idea is great, put it in front of a Shark Tank where every shark is a
Claude, and they all want to say no.
One Claude Code skill. Free, MIT, no signup, no API key, nothing to connect.
Made by **Alex Chen** ([@nocodealex](https://instagram.com/nocodealex)), an AI creator who builds free Claude Code skills. Step-by-step guide at [chen.media](https://chen.media/guides/pitch-your-idea-to-a-panel-of-claude-sharks-who-want-to-say-no-how-to-install-the-free-skill).
Ask Claude "is this a good business idea?" and it usually says yes. `/shark` puts the same idea in
front of a Shark Tank-style panel instead:
1. **5 sharks** read your pitch, and each writes their biggest worry and their three hardest
questions. Each one has a personality and a signature line: the tech billionaire shark ("Is this a
business or a hobby?"), the royalty shark (it only offers money for a cut of every sale), the
customer shark, the numbers shark and the skeptic shark.
2. A **founder** Claude answers every question, only from what you told it. When your pitch does not
have the answer, it says so, and that question goes on your homework list.
3. Each shark decides **IN or OUT**, with a practice offer ("$50,000 for 10%"), one line of why, and
the one thing that would change their mind. A shark that's out says it the classic way: "For that
reason, I'm out."