Agent skill

Warren Buffett

by monarchjuno in monarchjuno/vibe-investing

Analyze an investment through Warren Buffett's long-term quality-and-value lens.

MITAuto-check passedBusiness, Finance & HR

Install Warren Buffett

skills CLI
$ npx skills add monarchjuno/vibe-investing --skill warren-buffett -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install monarchjuno/vibe-investing warren-buffett --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/monarchjuno/vibe-investing.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/investor-personas/warren-buffett .claude/skills/warren-buffett && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
warren-buffett
GitHub stars
299
Token cost
~678 tokens
SKILL.md length
318 words
Files
1
Skills in repo
18
Repo updated
First seen
Licence
MIT

At a glance

Analyze an investment through Warren Buffett's long-term quality-and-value lens.

  • Works in 5 steps: Check circle of competence → Judge moat and durability → Judge management and stewardship → …
  • The analysis should stay inside circle of competence
  • SKILL.md covers Overview, Core Principles, Required Analysis Sequence and Decision Rules, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Warren Buffett is an agent skill from monarchjuno/vibe-investing. Analyze an investment through Warren Buffett's long-term quality-and-value lens. Use when the analysis should stay inside circle of competence, emphasize moat, management quality, financial strength, intrinsic value versus price, and durable long-term compounding rather than short-term trading narratives or speculative upside.

Its SKILL.md is about 680 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Business, Finance & HR, covering Trading and backtesting. The repository describes itself as: Vibe Investing Skill Library. The licence is MIT.

When your agent uses it

  • The analysis should stay inside circle of competence
  • Management quality
  • Financial strength
  • Intrinsic value versus price

Example prompts

  • “/warren-buffett”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Check circle of competence
  2. Judge moat and durability
  3. Judge management and stewardship
  4. Review financial strength and valuation
  5. Make the conclusion

What it can do on your machine

Read from SKILL.md and the folder at commit 15954a6. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Warren Buffett loads about 678 tokens when it runs. Until then it costs about 86 tokens; SKILL.md has 318 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~86
When it runs · the whole SKILL.md, loaded when a task matches
~678

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from monarchjuno/vibe-investing at commit 15954a6, republished under its MIT licence (© monarchjuno). 318 words, ~678 tokens.

Download SKILL.mdSave it as .claude/skills/warren-buffett/SKILL.md (or your agent's skills folder).
name
warren-buffett
description
Analyze an investment through Warren Buffett's long-term quality-and-value lens. Use when the analysis should stay inside circle of competence, emphasize moat, management quality, financial strength, intrinsic value versus price, and durable long-term compounding rather than short-term trading narratives or speculative upside.

Warren Buffett

Overview

Use this skill to evaluate whether a business is understandable, durable, well managed, and available at a price that offers satisfactory long-term returns.

Core Principles

  • Stay inside the circle of competence.
  • Favor durable moats and predictable economics.
  • Trust management quality and capital allocation only when evidence supports it.
  • Prefer financial strength and steady cash generation.
  • Buy quality with a margin of safety and hold for the long term.

Required Analysis Sequence

1. Check circle of competence
  • Decide whether the business is understandable enough to evaluate honestly.
  • Penalize cases that depend on guessing rather than judgment.
2. Judge moat and durability
  • Evaluate competitive advantage, customer stickiness, pricing power, and earnings resilience.
  • Ask whether the business can still look strong years from now.
3. Judge management and stewardship
  • Review management quality, shareholder orientation, and capital-allocation discipline.
  • Favor candor, rationality, and reinvestment discipline.
4. Review financial strength and valuation
  • Assess balance-sheet quality, cash generation, and intrinsic value relative to current price.
  • Prefer a sensible entry even for excellent businesses.
5. Make the conclusion
  • End with a stance and explain whether the business is worth owning now, worth watching at a better price, or worth avoiding.

Decision Rules

  • Lean bullish when the business is understandable, high quality, financially strong, and priced below a sensible estimate of intrinsic value.
  • Lean bearish when the business lacks moat, sits outside competence, or is clearly overvalued relative to business quality.
  • Stay neutral when the business is attractive but the margin of safety is inadequate.

Risk and Uncertainty Rules

  • State when confidence is limited by business complexity, cyclicality, or uncertain intrinsic value.
  • Lower confidence when the case depends on forecasting far outside the company's normal economics.

Anti-Hallucination Rules

  • Do not invent moats, management excellence, or intrinsic value support.
  • Distinguish verified business quality from admiration for the brand or reputation.
  • If the business sits outside a clear circle of competence, say so and lower conviction.

© monarchjuno, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/investor-personas/warren-buffett of monarchjuno/vibe-investing.

Open the folder on GitHubat commit 15954a6

Compare with similar skills

Warren Buffett next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Warren Buffett compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Warren Buffett this skillmonarchjuno/vibe-investing299—~678Automated safety check: PassMIT
Tushare Datazillionare/zillionare3192 repos~2.3kAutomated safety check: PassNone
Tradingview MCPatilaahmettaner/tradingview-mcp5k—~1.3kAutomated safety check: PassMIT
Digital Oraclekomako-workshop/digital-oracle870—~5.9kAutomated safety check: PassMIT
Fintoolsecond-state/fintool3161 repos~5.9kAutomated safety check: PassNone
Polyclawchainstacklabs/polyclaw3601 repos~2kAutomated safety check: PassApache-2.0

Similar skills

  • Tushare Data

    zillionare/zillionare

    面向中文自然语言的 Tushare 数据研究技能。用于把“看看这只股票最近怎么样”“帮我查财报趋势”“最近哪个板块最强”“北向资金在买什么”“给我导出一份行情数据”这类请求,转成可执行的数据获取、清洗、对比、筛选、导出与简要分析流程。适用于 A 股、指数、ETF/基金、财务、估值、资金流、公告新闻、板块概念与宏观数据等研究场景。

    319 GitHub starsUsed in 2 repos~2.3k tokens
    Business, Finance & HRAuto-check passed
  • Tradingview MCP

    atilaahmettaner/tradingview-mcp

    AI Trading Intelligence — live prices, 30+ technical indicators, backtesting (6 strategies), walk-forward overfitting detection, trade logs, equity curves, licensed news sentiment (Marketaux), and…

    5k GitHub stars~1.3k tokensUpdated today
    Business, Finance & HRAuto-check passed
  • Digital Oracle

    komako-workshop/digital-oracle

    Answer prediction questions using market trading data, not opinions.

    870 GitHub stars~5.9k tokensUpdated 2 mo ago
    Business, Finance & HRAuto-check passed
  • Fintool

    second-state/fintool

    Financial trading CLIs — spot and perp trading on Hyperliquid, Binance, Coinbase, OKX.

    316 GitHub starsUsed in 1 repo~5.9k tokens
    Business, Finance & HRAuto-check passed
  • Polyclaw

    chainstacklabs/polyclaw

    Trade on Polymarket via split + CLOB execution. An agent skill from chainstacklabs/polyclaw.

    360 GitHub starsUsed in 1 repo~2k tokens
    Business, Finance & HRAuto-check passed
  • Markdown

    facioquo/stock-indicators-dotnet

    Format and lint Markdown in this repository against GitHub Flavored Markdown and its markdownlint-cli2 configuration — headers, lists, code fences, callouts (VitePress containers on docs-site pages…

    1.2k GitHub stars~812 tokensUpdated today
    Business, Finance & HRAuto-check passed

More from monarchjuno/vibe-investing

All 18 skills in this repo
  • Openbb Data Fetcher

    monarchjuno/vibe-investing

    Fetch financial, market, economic, fundamental, news, options, crypto, ETF, index, and macro data through the OpenBB Python interface instead of the OpenBB MCP server.

    299 GitHub stars~2.9k tokensUpdated 5 mo ago
    Auto-check: notes
  • Company Analysis

    monarchjuno/vibe-investing

    Automatically analyze a company or company-related finance situation from a short user prompt such as a company name, "analyze [company]," M&A, LBO, IPO, debt, credit, or risk requests.

    299 GitHub stars~1.3k tokensUpdated 5 mo ago
    Auto-check passed
  • Financial Report

    monarchjuno/vibe-investing

    Package investing analysis into a publishable financial-report style with institutional section flow, thesis framing, valuation context, catalysts, risks, tables, and financial charts.

    299 GitHub stars~1.3k tokensUpdated 5 mo ago
    Auto-check passed
  • Quant Research

    monarchjuno/vibe-investing

    Design, evaluate, and challenge quantitative investment ideas using an integrated research workflow that covers factor and asset-pricing logic, signal generation, signal validation, backtesting…

    299 GitHub stars~1.1k tokensUpdated 5 mo ago
    Auto-check passed
  • Traditional Market Analysis

    monarchjuno/vibe-investing

    Analyze traditional market context for an investment case by identifying the current regime, cycle position, market expectations, liquidity and macro transmission, positioning and crowd psychology…

    299 GitHub stars~1.1k tokensUpdated 5 mo ago
    Auto-check passed
  • Aswath Damodaran

    monarchjuno/vibe-investing

    Analyze a company, sector situation, or valuation question through Aswath Damodaran's lens.

    299 GitHub stars~788 tokensUpdated 5 mo ago
    Auto-check passed

Questions about Warren Buffett

What does Warren Buffett do?

Analyze an investment through Warren Buffett's long-term quality-and-value lens. Warren Buffett is an agent skill from monarchjuno/vibe-investing. Analyze an investment through Warren Buffett's long-term quality-and-value lens.

When should I use Warren Buffett?

Warren Buffett fits situations like: the analysis should stay inside circle of competence; management quality; financial strength; intrinsic value versus price.

How do I install Warren Buffett in Claude Code?

Run `npx skills add monarchjuno/vibe-investing --skill warren-buffett -a claude-code`. Or copy the skill folder (skills/investor-personas/warren-buffett in monarchjuno/vibe-investing) into .claude/skills/warren-buffett in your project. Claude Code loads it when a task matches its description.

How do I install Warren Buffett in Codex?

Run `npx skills add monarchjuno/vibe-investing --skill warren-buffett -a codex`. Or copy the skill folder (skills/investor-personas/warren-buffett in monarchjuno/vibe-investing) into .agents/skills/warren-buffett in your project. Codex loads it when a task matches its description.

Can I use Warren Buffett in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add monarchjuno/vibe-investing --skill warren-buffett -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/warren-buffett, .gemini/skills/warren-buffett, .github/skills/warren-buffett and .opencode/skills/warren-buffett in your project.

What does Warren Buffett need to run?

SKILL.md names no scripts, command-line tools or credentials: Warren Buffett is instructions for the agent only.

Does Warren Buffett access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Warren Buffett safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Warren Buffett use?

Warren Buffett is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Warren Buffett use?

About 678 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Warren Buffett?

Skills that share tags, products or a category with Warren Buffett: Tushare Data (zillionare/zillionare, 319 stars), Tradingview MCP (atilaahmettaner/tradingview-mcp, 5k stars), Digital Oracle (komako-workshop/digital-oracle, 870 stars) and Fintool (second-state/fintool, 316 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Warren Buffett?

monarchjuno (a GitHub user) maintains it in monarchjuno/vibe-investing, which has 299 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on May 10, 2026.

Source: monarchjuno/vibe-investing on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.