the-fool

An agent skill by Jeffallan, from Jeffallan/claude-skills. Tags: brainstorming, evaluation, priority, research, strategy.

What it does

Use when challenging ideas, plans, decisions, or proposals using structured critical reasoning. Invoke to play devil's advocate, run a pre-mortem, red team, or audit evidence and assumptions.

Install

With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:

npx skills add Jeffallan/claude-skills --skill the-fool

Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):

git clone --depth 1 https://github.com/Jeffallan/claude-skills
cp -r claude-skills/skills/the-fool ~/.claude/skills/the-fool

Safety box score

Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.

Source

Repository

Jeffallan/claude-skills (all skills from this repository)

Path

skills/the-fool/SKILL.md

Branch

main

Updated

2026-09-19

Related skills

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• marketing-council — When the user wants multiple expert perspectives on a marketing question — a simulated board of advisors staffed by legendary marketers (Seth Godin.
• marketing-ideas — When the user needs marketing ideas, inspiration, or strategies for their SaaS or software product.
• feature-forge — Conducts structured requirements workshops to produce feature specifications, user stories, EARS-format functional requirements, acceptance criteria.
• prioritize-features — Prioritize a backlog of feature ideas based on impact, effort, risk, and strategic alignment with top 5 recommendations.