Channel Economics
alirezarezvani/claude-skills
A skill your agent uses when reviewing or rebalancing direct vs.
用户需要评估一个企业的长期竞争力和定价权——它能否在极少额外资本下持续增长利润. An agent skill from kangarooking/buffett-letters-skill.
MITAuto-check passed
Install Economic Moat
$ npx skills add kangarooking/buffett-letters-skill --skill economic-moat -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install kangarooking/buffett-letters-skill economic-moat --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/kangarooking/buffett-letters-skill.git skills-src && mkdir -p .claude/skills && cp -r skills-src/economic-moat .claude/skills/economic-moat && rm -rf skills-srcUse ~/.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/
Install the "economic-moat" agent skill from https://github.com/kangarooking/buffett-letters-skill/tree/main/economic-moat into .claude/skills/economic-moat/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "economic-moat", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/kangarooking/buffett-letters-skill/tree/main/economic-moatType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add kangarooking/buffett-letters-skill --skill economic-moat -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install kangarooking/buffett-letters-skill economic-moat --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kangarooking/buffett-letters-skill.git skills-src && mkdir -p .agents/skills && cp -r skills-src/economic-moat .agents/skills/economic-moat && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "economic-moat" agent skill from https://github.com/kangarooking/buffett-letters-skill/tree/main/economic-moat into .agents/skills/economic-moat/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "economic-moat", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add kangarooking/buffett-letters-skill --skill economic-moat -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install kangarooking/buffett-letters-skill economic-moat --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kangarooking/buffett-letters-skill.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/economic-moat .cursor/skills/economic-moat && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "economic-moat" agent skill from https://github.com/kangarooking/buffett-letters-skill/tree/main/economic-moat into .cursor/skills/economic-moat/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "economic-moat", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/kangarooking/buffett-letters-skill.git --path economic-moat--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add kangarooking/buffett-letters-skill --skill economic-moat -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install kangarooking/buffett-letters-skill economic-moat --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kangarooking/buffett-letters-skill.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/economic-moat .gemini/skills/economic-moat && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "economic-moat" agent skill from https://github.com/kangarooking/buffett-letters-skill/tree/main/economic-moat into .gemini/skills/economic-moat/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "economic-moat", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install kangarooking/buffett-letters-skill economic-moatInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add kangarooking/buffett-letters-skill --skill economic-moat -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/kangarooking/buffett-letters-skill.git skills-src && mkdir -p .github/skills && cp -r skills-src/economic-moat .github/skills/economic-moat && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "economic-moat" agent skill from https://github.com/kangarooking/buffett-letters-skill/tree/main/economic-moat into .github/skills/economic-moat/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "economic-moat", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add kangarooking/buffett-letters-skill --skill economic-moat -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install kangarooking/buffett-letters-skill economic-moat --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kangarooking/buffett-letters-skill.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/economic-moat .opencode/skills/economic-moat && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "economic-moat" agent skill from https://github.com/kangarooking/buffett-letters-skill/tree/main/economic-moat into .opencode/skills/economic-moat/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "economic-moat", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
economic-moat- GitHub stars
- 102
- Token cost
- ~502 tokens
- SKILL.md length
- 140 words
- Files
- 2
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- MIT
At a glance
用户需要评估一个企业的长期竞争力和定价权——它能否在极少额外资本下持续增长利润. An agent skill from kangarooking/buffett-letters-skill.
- Works in 4 steps: 评估一个公司是否有长期竞争力 → 判断一个品牌是否值溢价 → 决定是否应该为"优秀企业"支付溢价 → …
- SKILL.md covers R — 原文 (Reading), I — 方法论骨架, A1 — 书中的应用 and A2 — 触发场景, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Economic Moat is an agent skill from kangarooking/buffett-letters-skill. 用户需要评估一个企业的长期竞争力和定价权——它能否在极少额外资本下持续增长利润。 语言信号："这个公司有护城河吗"/"竞争优势在哪里"/"为什么这个公司能长期赚钱"/"品牌值多少钱" 不适用于：纯粹的行业分析（不涉及单个企业竞争力评估时）。
Its SKILL.md is about 500 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `test-prompts.json`).
The repository describes itself as: An AI skill pack for value investing, capital allocation, and behavioral discipline, distilled from Warren Buffett's 60+ years of shareholder letters. The licence is MIT.
Example prompts
- “这个公司有护城河吗”
- “竞争优势在哪里”
- “为什么这个公司能长期赚钱”
- “/economic-moat”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- 评估一个公司是否有长期竞争力
- 判断一个品牌是否值溢价
- 决定是否应该为"优秀企业"支付溢价
- 分析为什么某些公司能在行业中长期领先
What it can do on your machine
Read from SKILL.md and the folder at commit 5b1fbe1. 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
Economic Moat loads about 502 tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 140 words of instructions outside code blocks.
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 kangarooking/buffett-letters-skill at commit 5b1fbe1, republished under its MIT licence (© kangarooking). 140 words, ~502 tokens.
Download SKILL.mdSave it as
.claude/skills/economic-moat/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- economic-moat
- description
- 用户需要评估一个企业的长期竞争力和定价权——它能否在极少额外资本下持续增长利润。 语言信号："这个公司有护城河吗"/"竞争优势在哪里"/"为什么这个公司能长期赚钱"/"品牌值多少钱" 不适用于：纯粹的行业分析（不涉及单个企业竞争力评估时）。
- source_book
- 《巴菲特致股东的信》 沃伦·巴菲特
- source_chapter
- 1983年信 / 1986年信
- tags
- competitive-advantage, moat, economic-goodwill, franchise
- related_skills
- circle-of-competence, aesop-three-questions, business-picker, compounding-thinking, first-law-of-capital-allocation, cigar-butt-vs-great-business
经济商誉 / 护城河识别
R — 原文 (Reading)
"GEICO's cost advantage is like a moat protecting a much-sought-after business castle." (1986) "Economic goodwill does not, in many cases, diminish. Indeed, in a great many instances it actually grows in value over time. In character, economic goodwill is much like land." (1999)
I — 方法论骨架
经济商誉 = 品牌+市场地位+定价权+客户忠诚度 → 使企业能在极少额外资本下增长利润。
关键区分：
- 会计商誉会摊销减少；经济商誉往往随时间增长（如土地）
- 经济商誉的核心标志：不需要大量资本投入就能增长利润
- 护城河 = 保护经济商誉不被侵蚀的屏障（成本优势/品牌/网络效应/切换成本/许可）
- 商品企业（无护城河）：只有产能短缺时才能赚好钱
A1 — 书中的应用
案例1: See's Candy
- 问题: 为什么一个糖果公司值$2500万？
- 使用: 经济商誉识别——See's能在不增加资本的情况下通过品牌定价权增长利润
- 结果: 50年产生超$20亿税前利润，投入资本极少
案例2: GEICO的护城河
- 使用: 成本优势作为护城河——承保费用23.5% vs 对手38.5%
- 结果: 持续的市场份额增长和承保盈利
A2 — 触发场景
- 评估一个公司是否有长期竞争力
- 判断一个品牌是否值溢价
- 决定是否应该为"优秀企业"支付溢价
- 分析为什么某些公司能在行业中长期领先
语言信号
- "这个公司有护城河吗？"
- "竞争优势可持续吗？"
- "为什么这个品牌能收溢价？"
- "需要多少资本才能增长？"
与相邻 skill 的区分
- 与
cigar-butt-vs-great-business的区别：雪茄蒂vs伟大企业是投资策略选择，护城河是具体的分析工具
E — 可执行步骤
识别护城河类型（至少一种）
- 成本优势 / 品牌力 / 网络效应 / 切换成本 / 规模效应 / 许可壁垒
- 完成标准：指出具体类型并给出证据
检验资本需求
- 完成标准：计算"利润增长需要的额外资本"比例——越低越好
- 判停：如果利润增长需要等比例的资本投入 → 可能没有经济商誉
检验耐久性
- 完成标准：回答"这个护城河10年后还在吗？"并给出理由
B — 边界
- 护城河不是永久的——技术变革可以摧毁最深的护城河（柯达、诺基亚）
- 经济商誉难以量化——不能精确计算出"护城河值多少"
- 作者盲点：巴菲特低估了科技行业护城河（平台效应/网络效应）——Apple后期投资证明护城河分析需要与时俱进
相关 skills (阶段 3 填充)
- depends-on: circle-of-competence
- composes-with: aesop-three-questions, business-picker
审计信息
- 验证通过: V1 ✓ / V2 ✓ / V3 ✓
- 蒸馏时间: 2026-04-16
© kangarooking, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in economic-moat of kangarooking/buffett-letters-skill.
- SKILL.md
- test-prompts.json
Open the folder on GitHubat commit 5b1fbe1
Compare with similar skills
Economic Moat 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Economic Moat this skillkangarooking/buffett-letters-skill | 102 | — | ~502 | Automated safety check: Pass | MIT | |
| Channel Economicsalirezarezvani/claude-skills | 28k | — | ~3.3k | Automated safety check: Pass | MIT | |
| Economic Dispatchbenchflow-ai/skillsbench | 1.8k | — | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| SaaS Economics and Efficiency Metricsdeanpeters/Product-Manager-Skills | 7.2k | 1 repos | ~6.4k | Automated safety check: Pass | Custom licence | |
| Unit Economicsmohitagw15856/pm-claude-skills | 1.4k | — | ~844 | Automated safety check: Pass | MIT | |
| Economic Calendar Fetchertradermonty/claude-trading-skills | 3k | 1 repos | ~3.9k | Automated safety check: Pass | MIT |
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More from kangarooking/buffett-letters-skill
All 12 skills in this repoAesop Three Questions
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用户需要评估一个资产/投资/项目的价值，或纠结某个东西"值不值"时。适用于任何能产生（或不产生）现金流的资产评估. An agent skill from kangarooking/buffett-letters-skill.
Cigar Butt Vs Great Business
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用户在选择投资标的或商业模式时，纠结于"便宜买差企业"还是"合理价买好企业". An agent skill from kangarooking/buffett-letters-skill.
Circle Of Competence
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用户在做决策时不确定自己是否真的理解某个领域，或准备进入一个看似熟悉但缺乏验证记录的领域时. An agent skill from kangarooking/buffett-letters-skill.
Fear And Greed
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用户面对市场极端情绪时需要做出逆向来决策。当所有人都在买入/卖出、市场处于极端乐观/悲观时. An agent skill from kangarooking/buffett-letters-skill.
Mr Market
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用户在市场波动中情绪受到影响，或试图从市场价格变动中获取信息而非从企业分析中获取信息时. An agent skill from kangarooking/buffett-letters-skill.
Business Picker
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用户在分析股票或投资机会时，需要用"买企业"而非"买股票"的视角来评估. An agent skill from kangarooking/buffett-letters-skill.
Questions about Economic Moat
What does Economic Moat do?
用户需要评估一个企业的长期竞争力和定价权——它能否在极少额外资本下持续增长利润. An agent skill from kangarooking/buffett-letters-skill. Economic Moat is an agent skill from kangarooking/buffett-letters-skill.
How do I install Economic Moat in Claude Code?
Run `npx skills add kangarooking/buffett-letters-skill --skill economic-moat -a claude-code`. Or copy the skill folder (economic-moat in kangarooking/buffett-letters-skill) into .claude/skills/economic-moat in your project. Claude Code loads it when a task matches its description.
How do I install Economic Moat in Codex?
Run `npx skills add kangarooking/buffett-letters-skill --skill economic-moat -a codex`. Or copy the skill folder (economic-moat in kangarooking/buffett-letters-skill) into .agents/skills/economic-moat in your project. Codex loads it when a task matches its description.
Can I use Economic Moat 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 kangarooking/buffett-letters-skill --skill economic-moat -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/economic-moat, .gemini/skills/economic-moat, .github/skills/economic-moat and .opencode/skills/economic-moat in your project.
What does Economic Moat need to run?
SKILL.md names no scripts, command-line tools or credentials: Economic Moat is instructions for the agent only.
Does Economic Moat 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 Economic Moat 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 Economic Moat use?
Economic Moat 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 Economic Moat use?
About 502 tokens (SKILL.md is roughly 2k 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 Economic Moat?
Skills that share tags, products or a category with Economic Moat: Channel Economics (alirezarezvani/claude-skills, 28k stars), Economic Dispatch (benchflow-ai/skillsbench, 1.8k stars), SaaS Economics and Efficiency Metrics (deanpeters/Product-Manager-Skills, 7.2k stars) and Unit Economics (mohitagw15856/pm-claude-skills, 1.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Economic Moat?
kangarooking (a GitHub user) maintains it in kangarooking/buffett-letters-skill, which has 102 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on April 17, 2026.
Source: kangarooking/buffett-letters-skill on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.