https://github.com/agi-now/buffett-skills
A collection of ai skills built on Warren Buffett's investing framework.
https://github.com/agi-now/buffett-skills
ai btc buffett ethereum finance skills
Last synced: 2 days ago
JSON representation
A collection of ai skills built on Warren Buffett's investing framework.
- Host: GitHub
- URL: https://github.com/agi-now/buffett-skills
- Owner: agi-now
- Created: 2026-04-08T10:37:13.000Z (3 months ago)
- Default Branch: main
- Last Pushed: 2026-04-08T11:05:36.000Z (3 months ago)
- Last Synced: 2026-04-08T13:10:05.993Z (3 months ago)
- Topics: ai, btc, buffett, ethereum, finance, skills
- Homepage:
- Size: 69.3 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- awesome-agent-skills - buffett-skills - AI skills based on Warren Buffett's investing framework for business and finance analysis. (Data Analysis Skills)
README
> **[中文版本 →](README.zh.md)**
# bft-skills
A collection of Claude Code skills built around Warren Buffett's investment framework.
## Skills
### `buffett` — Buffett Investment Thinking System
Activates Warren Buffett's complete investment thinking system. Covers the full workflow from quick screening to deep analysis, with structured output and industry-specific playbooks.
**Triggers automatically when you:**
- Analyze any stock or company
- Evaluate an investment opportunity
- Read financial reports, annual letters, or shareholder letters
- Judge a company's moat or competitive advantage
- Assess management quality and integrity
- Make buy / hold / sell decisions
- Discuss value investing concepts (compounding, intrinsic value, margin of safety, circle of competence, Mr. Market)
- Analyze specific industries (insurance, banking, consumer, media, energy, railroads, tech)
- Handle capital allocation, buybacks, or dividends
- Assess market sentiment or macro risk
No need to mention "Buffett" — any investment analysis or business quality question triggers the skill.
## Installation
Clone this repo and copy the `skills/buffett` folder into your project:
```bash
git clone https://github.com/agi-now/buffett-skills /tmp/buffett-skills
cp -r /tmp/buffett-skills/skills/buffett your-project/.claude/skills/buffett
```
The skill must be placed at `.claude/skills/buffett/SKILL.md` relative to your project root:
```
your-project/
└── .claude/
└── skills/
└── buffett/ ← this folder
├── SKILL.md
└── references/
├── 01-thinking-frameworks.md
├── 02-investment-philosophy.md
├── 03-business-moat.md
├── 04-management-governance.md
├── 05-financial-metrics.md
├── 06-valuation-capital.md
├── 07-risk-behavior.md
└── 08-industry-playbooks.md
```
Claude Code auto-discovers skills placed under `.claude/skills//SKILL.md` — no registration required.
## Skill Structure
The `buffett` skill uses **progressive disclosure**: `SKILL.md` is always loaded, and the 8 reference files are read on-demand based on the analysis type.
### Dispatch Logic
| Path | When | Files Read |
|------|------|-----------|
| **A · Quick screen** | "Is this worth analyzing?" | None — uses the 8-question checklist |
| **B · Deep analysis** | Full company evaluation | `03→04→05→06`, plus `08` (industry) and `07` (risk) as needed |
| **C · Topic question** | Specific concept or decision | Directly loads the relevant reference file |
### Reference Files
| File | Content |
|------|---------|
| `01-thinking-frameworks.md` | Circle of competence, inversion, Mr. Market, long-term thinking, Munger's mental models |
| `02-investment-philosophy.md` | Intrinsic value, compounding, undervaluation, concentration, EMH rebuttal |
| `03-business-moat.md` | Five moat types, franchise vs. commodity business, economic goodwill |
| `04-management-governance.md` | Three-dimensional management assessment, institutional imperative, corporate culture |
| `05-financial-metrics.md` | Owner earnings, ROIC/ROE, cash conversion rate, look-through earnings |
| `06-valuation-capital.md` | Three valuation methods, margin of safety, five capital allocation paths |
| `07-risk-behavior.md` | When to sell, value traps, leverage, inflation, derivatives, behavioral biases |
| `08-industry-playbooks.md` | Insurance, banking, consumer, media, energy, railroads, tech, cautionary tales |
### Output Format
Every analysis follows a structured template with all sections required:
- **Conclusion** — Buy / Don't buy / Watch / Hold / Sell + one-sentence rationale
- **Circle of Competence** — In circle / Out of circle / Boundary
- **Key Assumptions** — 3–5 core assumptions the decision depends on
- **Business Quality** — Moat type + strength + trend, management assessment
- **Financial Snapshot** — ROIC, cash conversion rate, owner earnings estimate
- **Valuation** — Intrinsic value range, margin of safety %, suggested entry price
- **Sell Criteria Check** — Four sell criteria checked individually (required for hold/sell questions)
- **Key Risks** — Top 3 risks only
- **Monitoring Indicators** — Quarterly checks and sell triggers
- **Final Verdict** — Decision and rationale in Buffett's voice
## Eval Results
Benchmarked across 3 test cases (Apple stock analysis, banking framework, Moutai hold/sell):
| Metric | with skill | without skill | Delta |
|--------|-----------|---------------|-------|
| Pass rate | **100%** (15/15) | 66.7% (10/15) | **+33%** |
| Avg tokens | 43,353 | 12,524 | +30,829 |
| Avg time | 154.4s | 95.2s | +59.2s |
The skill's primary value is systematic reference file reading (11+ tool calls vs 2) and strict output format adherence. The token/time cost is the tradeoff for analytical depth.
## Mind Map
```mermaid
mindmap
root((bft-skills
Buffett Investment System))
Trigger Scenarios
Stock / Company Analysis
Financial Reports / Annual Letters
Buy · Hold · Sell Decisions
Moat / Competitive Advantage
Management Quality Assessment
Value Investing Concepts
Industry-Specific Analysis
Capital Allocation / Buybacks / Dividends
Market Sentiment / Macro Risk
Three Core Modules
Moat Scanner
Cost Advantage
Switching Costs
Network Effects
Intangible Assets
Efficient Scale
Management Mirror
Promises vs. Delivery
Capital Allocation History
Pay-Shareholder Alignment
Margin of Safety Calculator
Optimistic / Base / Pessimistic
Intrinsic Value Range
Suggested Entry Price
Dispatch Logic
A · Quick Screen
8-Question Checklist
No Reference Files Needed
B · Deep Analysis
Moat 03
Management 04
Financials 05
Valuation 06
Industry Playbook 08 (as needed)
Risk & Behavior 07 (as needed)
C · Topic Question
Load Relevant File Directly
8 Reference Files
01 Thinking Frameworks
Circle of Competence · Inversion
Mr. Market · Munger's Models
02 Investment Philosophy
Intrinsic Value · Compounding
Concentration · Undervaluation
03 Business Moat
Five Moat Types
Franchise vs. Commodity
Economic Goodwill
04 Management & Governance
Three-Dimensional Assessment
Institutional Imperative · Culture
05 Financial Metrics
Owner Earnings
ROIC / ROE
Cash Conversion Rate
06 Valuation & Capital
Three Valuation Methods
Margin of Safety
Five Capital Allocation Paths
07 Risk & Behavior
When to Sell
Value Traps
Behavioral Biases
08 Industry Playbooks
Insurance · Banking · Consumer
Media · Energy · Railroads
Tech · Cautionary Tales
Output Format
Conclusion (Buy/Pass/Hold/Sell)
Circle of Competence
Key Assumptions (3-5)
Business Quality (Moat + Management)
Financial Snapshot
Valuation & Margin of Safety
Sell Criteria Check
Key Risks (max 3)
Monitoring Indicators
Final Verdict
```
## Source Material
Reference files were compiled from 49 concept pages in the Buffett Letters corpus, covering every major topic from Buffett's shareholder letters and public writings.