Guide · Agent skill
How to use the dyp-ask agent skill (Duan Yongping Q&A)
Updated · written with AI from the project's own documentation and checked against our catalogue data
dyp-ask is an agent skill from the xbtlin/ai-berkshire repository, released under the MIT licence. Once installed, it makes your AI agent answer questions in the first-person voice of Duan Yongping, the founder of several Chinese consumer electronics brands and a well-known value investor. This guide explains what the skill does, how to install it, how to trigger it, and what limits to keep in mind.
段永平问答 (Duan Yongping Q&A)xbtlin/ai-berkshire · MIT Download the skill Quick start
- 1Download the ZIP. Get the dyp-ask ZIP from this page and unzip it on your computer.
- 2Choose an install location. Place the dyp-ask folder in ~/.claude/skills/ for personal use, or in a project's .claude/skills/ folder for one project.
- 3Or upload in the Claude apps. In the Claude apps, go to Settings → Capabilities → Skills and upload the skill.
- 4Confirm SKILL.md is present. Check that the dyp-ask folder contains SKILL.md, the only file listed for this skill.
- 5Ask a matching question. Ask about investing principles, business models or a value investor's view of a business.
- 6Verify important claims. Check any quotation or factual statement against primary sources before relying on it.
What is an agent skill, and what does dyp-ask do?
An agent skill is a folder containing a SKILL.md file that gives an AI agent extra instructions it loads when they are relevant. The dyp-ask skill is a prompt-style persona built from a written summary of Duan Yongping's views. It runs no code and makes no external lookups by itself.
When the skill is active, the agent role-plays Duan Yongping and applies his frameworks: buying a stock means buying a business, business model and moat matter most, you should invest only within your circle of competence, avoid margin debt, and be patient.
- Answers in a direct, conversational first-person style, often using analogies and rhetorical questions.
- Says "I don't know" or "I don't understand this" for topics outside his circle of competence.
- Frames business questions using business model, moat and corporate culture.
- Does not give buy or sell advice or precise price targets, according to its instructions.
Install dyp-ask in Claude Code or the Claude apps
Download the ZIP from this page and unzip it. For personal use across projects, place the dyp-ask folder in ~/.claude/skills/. To share it within one project, place it in that project's .claude/skills/ folder.
In the Claude apps, you can instead upload the skill under Settings → Capabilities → Skills. The skill's folder should contain SKILL.md; it is the only file listed for this skill.
- Personal: ~/.claude/skills/dyp-ask/
- Project only: .claude/skills/dyp-ask/ inside your project
- Claude apps: Settings → Capabilities → Skills, then upload
~/.claude/skills/dyp-ask/SKILL.mdHow to trigger the skill with natural requests
Ask a question that matches the skill's description: a question about investing principles, business models, management, or how a value investor would think about a business. Asking in Chinese or English both work for the persona, since the source material is written in Chinese.
The skill's own description is "AI Berkshire skill: 段永平问答：以他的方式思考", so you can also name the skill explicitly in your request if your agent supports that.
- "How would Duan Yongping think about whether a business has a durable moat?"
- "用段永平的方式分析一下这个生意的商业模式"
- "What does 'no margin' mean in Duan Yongping's view?"
- "段永平怎么看能力圈？"
Examples of useful questions
The skill works best on questions about principles and frameworks. It is weakest on detailed financial work and on subjects outside investing and business, such as technical or medical detail, where the persona is instructed to say it does not know.
Good questions name the framework you want applied, so the answer stays focused.
- Ask for a framework: "Walk me through his stop-doing list for investing."
- Ask about a business model: "Is an airline a good business by his criteria?"
- Ask about temperament: "How did he think about patience in bear markets?"
- Ask for the reasoning behind a principle rather than a verdict on a specific stock.
What the skill needs, and safety notes
The skill lists no requirements. It runs no scripts and uses no network access, according to its listing. Its behaviour comes entirely from the text in SKILL.md.
The main risk is the output itself. The persona is generated text, not a verified source. It may present invented quotes as real statements by Duan Yongping, so check any quotation against primary sources before you rely on it or repeat it.
- Requirements: none listed.
- Scripts: none.
- Network: none.
- Do not treat output as investment advice; the skill says it gives none.
- Verify quotes and factual claims independently.
Tips for better answers
Keep questions specific and say what you already know. The persona answers from his frameworks, so a question tied to a clear concept produces a clearer answer than a broad one.
Use the answers to learn the reasoning, then test that reasoning against sources you trust. Treat the persona as a study aid for value-investing ideas, not as a stand-in for the real person.
- State the framework you want (circle of competence, moat, management).
- Ask follow-ups on the reasoning, not just the conclusion.
- Cross-check any quoted line before citing it.
What people use it for
- Studying value-investing principles such as circle of competence, moat and patience in a conversational format.
- Exploring how a value investor would frame a business model question.
- Learning about the 'stop-doing list' idea, including why margin debt is avoided.
- Practising Chinese-language discussion of investing concepts through a persona.
Frequently asked questions
How do I install the dyp-ask skill?
Download the ZIP from this page and unzip it. Place the dyp-ask folder in ~/.claude/skills/ for personal use or in a project's .claude/skills/ folder, or upload it in the Claude apps under Settings → Capabilities → Skills.
Does dyp-ask require any software or accounts?
The skill's listing shows no requirements. It runs no scripts and uses no network access, so its behaviour comes from the instructions in SKILL.md.
Is dyp-ask free and what is its licence?
The repository is listed under the MIT licence. The source material does not state a price, so this guide does not claim one.
Will dyp-ask tell me which stocks to buy?
No. The skill says it gives no buy or sell advice and should not give precise price targets or predict market moves. It can share analytical frameworks instead.
Are the quotes from the skill really Duan Yongping's words?
Not necessarily. The persona is generated text based on a written summary of his views, so it can present invented quotes as real. Verify any quotation against primary sources.
How does dyp-ask compare with other value-investing skills or resources?
The source material here covers only this skill, so this guide cannot compare it with alternatives. If you want a source you can cite, read Duan Yongping's own published statements or other primary material.
New agent skills, repos and AI tools — every week
The best new skills and open-source projects, the fastest-growing repos, and one free prompt. Five minutes to read. Unsubscribe anytime.
Our verdict
dyp-ask suits Chinese-speaking readers and students of value investing who want a conversational walk through Duan Yongping's principles, and it is light to install with no scripts or network use. It is the wrong tool for real investment decisions, precise financial analysis, or any situation where you might mistake generated quotes for the real person's statements.
Download the skill