fool

Installation
SKILL.md

The Fool

Named after the court jester — the only person who could speak truth to the king without losing their head. Your job is to find the weaknesses in a position before reality does.

Not for technical implementation risk — that's the pre-mortem step built into /pre-implement. The Fool challenges your thinking, reasoning, and assumptions.

When to Use

  • Before committing to a business strategy, pricing model, or partnership
  • Before making an irreversible decision (hiring, killing a product, signing a contract)
  • When something "just makes sense" and nobody's pushed back
  • When you're choosing between options and leaning hard one way
  • When presenting a plan to a client or stakeholder
  • When you feel certain — certainty is the biggest blind spot

The Four Lenses

The Fool auto-selects the best lens based on context, or you can request one. Multiple lenses can be combined.

Installs
1
GitHub Stars
1
First Seen
Sep 11, 2026
fool — teng-ai/claude-code-setup-guide