xbtlin/ai-berkshire

Berkshire in the AI era: a value investing research framework built for Claude Code / Codex. Buffett, Munger, Duan Yongping, and Li Lu's methodologies + multi-agent adversarial analysis.

About the project

AI Berkshire is a collection of Claude Code and Codex skills that structures investment research around the methods of four value-investing thinkers and uses multiple agents for adversarial analysis. It is intended for investors who want a disciplined process for researching companies and making valuation-based decisions.

This repository also configures its own agents. See what ai-berkshire tells them →

16kStars on the repository
24Mods indexed here, across every type
yesterdayLast push, which is what freshness is scored on
MITLicence, which decides whether bodies are shown
▶ Install AI Berkshire GitHub Review & Guide: Institutional-Grade Investment Research with Claude Code Alex Hitt · about xbtlin/ai-berkshire · on YouTube →

bottleneck-hunter

01

xbtlin/ai-berkshire

Skill Claude Code

A research workflow for finding supply-chain bottlenecks—parts of global production where shortages or limited capacity may create investment opportunities.

not rated 16k +85 yesterday A Snyk: warnSkillSpector: pass 41 tokens original MIT

deep-company-series

02

xbtlin/ai-berkshire

Skill Claude Code

A long-form company research workflow that explains one business through a series of three to eight articles.

not rated 16k +85 yesterday A Snyk: warnSkillSpector: pass 38 tokens original MIT

dyp-ask

03

xbtlin/ai-berkshire

Skill Claude Code

A question-and-answer writing style based on the investing views of Duan Yongping, a Chinese entrepreneur and investor.

not rated 16k +85 yesterday A SkillSpector: pass 32 tokens original MIT

earnings-review

04

xbtlin/ai-berkshire

Skill Claude Code needs its repo

A workflow for closely reading and interpreting a company's financial reports using original source material.

not rated 16k +85 yesterday A SkillSpector: pass 30 tokens original MIT

earnings-team

05

xbtlin/ai-berkshire

Skill Claude Code needs its repo

A team-based workflow for reading financial reports through four parallel perspectives and preparing the result for publication on a public account.

not rated 16k +85 yesterday A Snyk: warnSkillSpector: pass 34 tokens original MIT

era-alpha

06

xbtlin/ai-berkshire

Skill Claude Code

An investing framework for finding, checking, and holding high-growth companies that may become leading long-term assets.

not rated 16k +85 yesterday A SkillSpector: pass 36 tokens original MIT

financial-data

07

xbtlin/ai-berkshire

Skill Claude Code needs its repo

A set of rules for obtaining financial data and checking it against multiple sources.

not rated 16k +85 yesterday A SkillSpector: pass 25 tokens original MIT

income-investment

08

xbtlin/ai-berkshire

Skill Claude Code needs its repo

AI Berkshire skill: Income Investment: Durable and Opportunistic Distribution Analysis. Source: skills/income-investment.md.

not rated 16k +85 yesterday A SkillSpector: pass 27 tokens original MIT

industry-funnel

09

xbtlin/ai-berkshire

Skill Claude Code needs its repo

An investing screen that narrows the full market down to three companies by evaluating industries through a value-investing process.

not rated 16k +85 yesterday A SkillSpector: pass 37 tokens original MIT

industry-research

10

xbtlin/ai-berkshire

Skill Claude Code needs its repo

An industry-research workflow that maps how an industry works from suppliers to customers, then examines individual companies within it. The value-investing analysis looks at business quality, risks, and price.

not rated 16k +85 yesterday A SkillSpector: pass 36 tokens original MIT

xbtlin/ai-berkshire

Skill Claude Code needs its repo

A pre-purchase checklist for value investing, which means buying shares based on a company’s business quality and estimated worth. It is based on the investing approach associated with Warren Buffett.

not rated 16k +85 yesterday A SkillSpector: pass 28 tokens original MIT

xbtlin/ai-berkshire

Skill Codex

Codex-only writing and layout overlay for AI Berkshire investment research reports. Use whenever Codex creates, rewrites, revises, or critiques company/industry/fund research reports, especially long-form Markdown reports that need financial rigor, readable business mechanics, contrarian analysis, valuation-to-action…

not rated 16k +85 yesterday A SkillSpector: pass 93 tokens original MIT

investment-research

13

xbtlin/ai-berkshire

Skill Claude Code needs its repo

A broad stock-research workflow combining ideas associated with Warren Buffett, Charlie Munger, Duan Yongping, and Li Lu. It examines the business, its quality, its risks, and its value.

not rated 16k +85 yesterday A Snyk: warnSkillSpector: pass 43 tokens original MIT

investment-team

14

xbtlin/ai-berkshire

Skill Claude Code needs its repo

A framework that divides investment research among four analytical roles working in parallel. It combines their findings into one company or industry assessment.

not rated 16k +85 yesterday B SkillSpector: warn 28 tokens original MIT

xbtlin/ai-berkshire

Skill Claude Code

A research workflow for evaluating a company’s managers and leaders. It treats buying shares as partly trusting the people who run the business.

not rated 16k +85 yesterday A SkillSpector: pass 34 tokens original MIT

news-pulse

16

xbtlin/ai-berkshire

Skill Claude Code

A rapid company-news workflow for explaining a sudden share-price move. It builds a timeline and checks company events, regulation, competitors, the industry, and market mood.

not rated 16k +85 yesterday A SkillSpector: pass 66 tokens original MIT

portfolio-review

17

xbtlin/ai-berkshire

Skill Claude Code

A workflow for researching companies and managing a group of investments. It uses shared research rules and checks the date and data sources before reporting.

not rated 16k +85 yesterday A SkillSpector: pass 29 tokens original MIT

xbtlin/ai-berkshire

Skill Claude Code

A research workflow for private companies, meaning businesses whose shares are not traded on a public stock exchange. It uses several research roles to investigate the company in depth.

not rated 16k +85 yesterday A Snyk: warnSkillSpector: pass 33 tokens original MIT

quality-screen

19

xbtlin/ai-berkshire

Skill Claude Code

A quick screen for removing companies that do not meet seven quality measures. It is meant to narrow the list before doing deeper investment research.

not rated 16k +85 yesterday A SkillSpector: pass 32 tokens original MIT

thesis-drift

20

xbtlin/ai-berkshire

Skill Claude Code needs its repo

An investment-research workflow that checks whether a company's underlying situation has changed, separating real developments from changes in wording.

not rated 16k +85 yesterday A Snyk: passSkillSpector: pass 34 tokens original MIT

thesis-tracker

21

xbtlin/ai-berkshire

Skill Claude Code

An investment-research workflow for tracking whether the reasons for buying a company still hold after the purchase.

not rated 16k +85 yesterday A SkillSpector: pass 30 tokens original MIT

wechat-article

22

xbtlin/ai-berkshire

Skill Claude Code

A writing workflow that divides a WeChat public-account article into author, editor, and reader roles, with separate collaboration between them.

not rated 16k +85 yesterday A SkillSpector: pass 32 tokens original MIT

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