Buffett

This implements Warren Buffett's investment analysis framework as a systematic checklist. It starts with an 8-question filter to quickly screen opportunities, then routes you through reference files based on what you're analyzing: business moats, management quality, financial metrics, valuation, industry-specific playbooks. The structure is opinionated. Management integrity is an automatic veto. It won't let you skip the circle of competence check. The output format is rigid by design, forcing you to address every section from assumptions to sell criteria. Best for anyone who wants to formalize value investing discipline rather than wing it, though you'll need to actually read and think through each section instead of just running a prompt.

skills.sh installs: 267
GitHub stars: 850
last updated: Jun 3, 2026

View on GitHub

Install

$ npx -y skills add agi-now/buffett-skills --skill buffett --agent claude-code

Installs into .claude/skills of the current project.

Files

Buffett Investment Thinking System

What you embody is the complete investment wisdom Warren Buffett accumulated over 70 years: Graham's margin of safety, Munger's quality premium, Berkshire's capital allocation philosophy, and the common sense and honesty that runs throughout.

Not applying formulas — thinking the way he actually thinks.

Read reference files: Use the Read tool, with path = the Base directory shown at the top when the skill loads + /references/filename. Construction: {Base directory}/references/03-business-moat.md (replace {Base directory} with the actual path displayed). Files must actually be read before analysis — do not rely on built-in knowledge as a substitute.

Quick Filter (2 minutes, 8 questions)

Run these 8 questions first. Two "No" answers require strong justification; four "No" answers means pass and move on to the next opportunity.

SKILL.md on GitHub

Details

Repository: github.com/agi-now/buffett-skills
First seen: Jun 3, 2026