Ljg Skills for Codex
基于结构映射理论,为场景或两个对象的差异寻找精妙类比与关系隐喻,保留关键关系、解释增量与迁移边界。USE WHEN 用户说「找个类比」「打个比方」「有什么精妙的隐喻」「用类比讲清两者区别」「换个场景理解」或调用 ljg-analogy。NOT FOR 只解释现成比喻、纯修辞润色、理论定义或把类比当作事实证明。
How to install Ljg Skills in Codex
In Codex, ask the built-in skill installer for it:
$skill-installer install https://github.com/lijigang/ljg-skills/tree/master/skills/<skill>Type this in Codex and replace <skill> with a folder name from 'What it contains'. $skill-installer is the skill installer built into Codex, and it downloads the skill from GitHub. Restart Codex if the skill doesn't show up. Check the repo README for any setup it needs. Source: Codex skills docs.
Or copy the skill folder (the one with SKILL.md) into ~/.agents/skills to use it in every project, or into .agents/skills in a repo to share it with that repo. Codex picks up new skills automatically. (where Codex loads skills)
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What it contains
Skills (26)
ljg-analogy— 基于结构映射理论,为场景或两个对象的差异寻找精妙类比与关系隐喻,保留关键关系、解释增量与迁移边界。USE WHEN 用户说「找个类比」「打个比方」「有什么精妙的隐喻」「用类比讲清两者区别」「换个场景理解」或调用 ljg-analogy。NOT FOR 只解释现成比喻、纯修辞润色、理论定义或把类比当作事实证明。ljg-blind— 盲区扫描——读昨天你与 AI 的全部对话,照出暴露的思维盲区(不是不懂的知识,是让某类真相一直看不见的思维习惯),再从微信读书挑一本书的一章精准补上,落成一篇完整分析笔记。Use when user says '扫盲区', '盲区', '照盲区', '看看我的思维盲区', '我昨天想漏了什么', 'blind spot', 'ljg-blind', '/ljg-blind', or wants yesterday's AI conversations analyzed for cognitive blind…ljg-book— Explain a whole book to readers without specialist knowledge: what it follows, how its main threads connect, where it ends, and how its evidence or events change understanding. Keep the book's specific content; a general lesson alone is not enough. USE WHEN…ljg-business-model— 基于《商业模式新生代》的 Business Model Canvas,把用户提供的项目介绍、访谈、产品资料或商业计划整理成九模块商业模式画布卡片,交付 PNG 与可修改的 HTML。USE WHEN 用户调用 ljg-business-model、要求画商业模式画布、九宫格商业模式或把商业信息做成画布卡片。NOT FOR 普通商业分析、投资估值、Lean Canvas 或只解释商业模式概念。ljg-card— Content caster (铸). Transforms text into PNG through precise HTML typography and, when the mold needs it, generated raster imagery. Four molds: -l (default) long reading card, -f source-faithful full text, -c comic, -w whiteboard. USE WHEN user says '铸'…ljg-classic— 古文逐字注解、组合排版、章节意旨图与全章解读生成器。把原文、字词注、句义注、无字顶部配图和章节解读排成一张可读的长 PNG。USE WHEN 用户调用 ljg-classic OR 要求给文言文、古诗文、经史子集做逐字注解、彩色夹注、章节解读、古文讲义图、章节配图。NOT FOR 只翻译一句古文、只写现代文章或通用内容卡片。ljg-constraint— 给一个领域、专业、角色、产品或争论找出真正框住它的几条约束,判明它们属于世界/规则/解释(硬/软/自设),看这组约束如何定义身份、补全问题、框出解空间并解释实际行为;尤其用于区分目标相同但约束不同导致的方案分歧,识别被误当硬事实的旧解释。USE WHEN 用户说 '约束', '找约束', '这个领域的约束是什么', '本质约束', '什么框住了它', '硬约束还是自设约束', '边界在哪', '这行为什么这么做', 'constraint', '/ljg-constraint', or gives any…ljg-explain— 把概念、公式、机制与原理讲到能辨认、能推导、能迁移:用通俗中文接通具体情境、判别依据、运作过程和成立条件。USE WHEN 用户调用 ljg-explain、说「通俗易懂地讲解」「讲透这个概念或公式」「费曼讲解」「ELI5」,或希望从零理解一个知识点并能用于新情境。NOT FOR 单纯润色或翻译、整篇伴读、整本书或论文解读、只要求形式证明或操作步骤。ljg-invest— 投资分析。给一个项目(公司名、BP、创始人对话记录),写一份深度投资分析报告。不走传统投资分析的路——核心判断只有一个:这个项目是不是一台「秩序创造机器」。Use when user says '投资报告', '投资分析', '分析这个项目', '写投资报告', 'investment report', 'invest analysis', or provides entrepreneur conversation records wanting investment evaluation. Also…ljg-is— 把一个名词或概念写成可使用的理解:先用普通话讲清它是什么、与相邻概念差在哪里,再说明它怎样运作、会改写什么判断,最后给出面对它时的行动抓手。USE WHEN 用户问 X 是什么、怎么理解、意味着什么、为什么重要、以后怎样判断或使用;尤其适合技术概念、制度、产品、角色、方法、规范与实践。NOT FOR 单纯查事实、公式证明、逐步操作教程、纵向因果深挖(用 ljg-think)或母题结构(用 ljg-structure)。ljg-learn— Deep concept anatomist that deconstructs any concept through 8 exploration dimensions (history, dialectics, phenomenology, linguistics, formalization, existentialism, aesthetics, meta-philosophy) and compresses insights into an epiphany. Use when user asks…ljg-map— 以《学习观》的知识观洞察用户文稿,提炼概念、判别依据与有条件的联结,按文稿自身的关系绘制通俗的形式化知识地图;每个节点都有白话定义、短公式和具体语义,图形不预设层级。USE WHEN 用户调用 /ljg-map,或要求把文章、笔记、讲稿画成形式化地图、思考地形图、概念判别与关系图。NOT FOR 普通摘要、逐段改写、地理地图或单独的公式证明。ljg-mechanism— 针对用户提供的现象,用「看反常—追过程—分解释—带条件迁移」生成机制猜想,并联网核对现象、检验关键因果与竞争解释,交付证据最能支撑的机制及其边界。USE WHEN 用户调用 ljg-mechanism、说「找机制」「机制研究」「用四步框架走一遍」「联网验证这个解释」,或希望研究一个现象怎样发生。NOT FOR 纯概念定义、普通摘要、已有唯一解的操作题或只画地图。ljg-paper— Explain research papers to readers without a specialist background: what the paper studies, what the authors contribute, how the findings follow, and what the evidence does not establish. USE WHEN the user shares an arXiv link, paper URL, PDF, local paper…ljg-present— Unix 气质的演讲设计与保真排版。把 Org/Markdown 提纲或经授权提炼的讲稿制成单文件离线 HTML;以语义角色选择巨句、对照、Unicode 关系图、证据与章节版式。默认深色,支持讲稿层、原生图表与翻页笔。USE WHEN present、做演讲、slides、按 outline 美化、把讲述精髓放上屏幕。NOT FOR 未经授权改写作者内容或生成企业 PPT。ljg-push— 把 ~/.agents/skills/ljg-* 里所有更新过的 skills 同步到 github repo (ljg-skills),先推 master 分支(org-mode 输出风格),再切 md 分支(markdown 输出风格)做基础 markdown 化后推。Use when user says '/ljg-push', 'push skills', '推送 skills', '同步 skills', 'sync ljg', or whenever ljg-* skills get updated…ljg-qa— 信息提问机。给一篇文章/论文/书,把核心观点抽成 Q-A 对——Question 切要害,不教科书;Answer 简洁清晰,有形式化收口,逻辑链完整。读者顺 Q 链走过,每个 A 砸下一枚钉子,复现作者整套推理。Use when user says '问答', 'Q&A', 'QA', '提问', '抽取问题', '/ljg-qa', or shares an article/paper/book and asks for Q-A extraction. Triggers when the user wants…ljg-rank— 给一个领域,找出背后真正撑着它的几根独立的力。十几个现象砍到不可再少的生成器——砍完能把现象一个个生回来,才算数。Use when user says '降秩', '找秩', '秩是什么', '这个领域靠什么撑着', '背后是什么', or wants to decompose any domain to its irreducible generators.ljg-read— 用《学习观》的「下上结构」讲透用户提供的文本:从具体情境接通概念、判别依据与有条件的关系,让读者理解原意并能迁移判断;默认直接在对话中展示。USE WHEN 用户说「伴读」「陪我读」「读这篇」「讲透这段」「read with me」或提供文本希望深入浅出地讲解。NOT FOR 单纯翻译、整本书拆解或只画概念地图。ljg-relationship— Relationship analyst combining structural diagnostics (5-layer framework) with psychoanalytic depth (transference, unconscious patterns, resistance). Guides users through dialogue to "see" the real structure of their relationship issues. Use when user says…ljg-roundtable— 一个议题,一场圆桌:主持人请来 3-5 位真实人物,定义开场,逐轮交锋, 每轮收一张 ASCII 结构图,用户用指令控节奏(可/止/深入此节/引入新人物), 散场后全文存入 Markdown 笔记。Use when user says "圆桌讨论", "圆桌", "roundtable", "辩论", or wants to explore a topic through multi-perspective structured debate.ljg-structure— 找出一段信息中母题级别的结构,把抽象关系展开回具体可见的现象,再用风洞检验关键因果与边界。USE WHEN user says '找结构', '母题是什么', '结构风洞', '背后的结构', '不要只做AB测试', or wants the generative mechanism beneath a problem. 仅当用户明确要求时展开跨域来源或多母题组合。NOT FOR 普通摘要、单个类比、事实查询或已有明确唯一解的执行题。ljg-teach— 用体验而不是定义来教授概念、原理或检验观点:先给与学习者认知水平相称的局面,让其选择,再用公平的意外显化认知缺口,结构化后才命名,并以迁移局面循环复测。USE WHEN 用户调用 '/ljg-teach'、说 '用情境教我'、'别先讲答案'、'通过案例让我学会',或希望通过选择与反馈理解一个概念或观点。NOT FOR 直接定义查询(用 ljg-is/ljg-word)、八维概念解剖(用 ljg-learn)、伴读文本(用 ljg-read)。ljg-think— 追本之箭——纵向深钻思维工具。给一个观点、现象或问题,像箭一样一路向下钻到不可再分的本质。Use when user says '想透', '追本', '本质是什么', '为什么会这样', '深挖', '钻到底', 'think deep', 'drill down', or wants to trace any idea/phenomenon vertically to its irreducible root. Also trigger when user provides a statement and…ljg-word— Deep-dive English word mastery tool. Deconstructs a single English word into core semantics and epiphany. Use when user asks to explain/master a specific English word.ljg-writes
About this listing
Ljg Skills is a community collection of agent skills on GitHub by lijigang: folders with a SKILL.md file, the format Codex loads skills from. Its README mentions Codex. It passed the CodexStacks quality filter for skills (at least 100 stars, pushed in the last 90 days, not a fork or a list, and at least one SKILL.md with a name and description). OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 27, 2026 (an install and load check, not a code review). From its files we found 26 skills. It's one of 441 listings in the Developer Tools category (category assigned by CodexStacks from the repo's topics and description).
Ljg Skills FAQ
How do I install Ljg Skills in Codex?
In Codex, type $skill-installer install https://github.com/lijigang/ljg-skills/tree/master/skills/<skill>. $skill-installer is the skill installer built into Codex (Codex skills docs). Or copy the skill folder (the one with SKILL.md) into ~/.agents/skills to use it in every project, or into .agents/skills in a repo to share it with that repo. Codex picks up new skills automatically.
Is Ljg Skills an official Codex skill?
No. Ljg Skills is a community repo on GitHub by lijigang. It passed the CodexStacks quality filter, but OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 27, 2026 (an install and load check, not a code review), so read the code before you install it.
What does Ljg Skills include?
From its manifest and repo files, Ljg Skills includes 26 skills: ljg-analogy, ljg-blind, ljg-book, ljg-business-model, ljg-card, ljg-classic….
Details
- Type
- Skill
- Category
- Developer Tools (assigned by us)
- Source
- Community
- Author
- lijigang
- License
- MIT
- GitHub stars
- 7,586 (at last sync)
- Last push
- 2026-10-29
- Source
- https://github.com/lijigang/ljg-skills
- Listed via
- GitHub search: Codex skills (SKILL.md)
- Install check by CodexStacks
- Passed on Oct 27, 2026 with Codex CLI 0.163.0: Codex loaded its skills. proof · how we check
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Markdown
[](https://codexstacks.com/p/ljg-skills/)HTML
<a href="https://codexstacks.com/p/ljg-skills/"><img src="https://codexstacks.com/badge.svg" alt="Listed on CodexStacks" width="172" height="28"></a>Embed card (static HTML and inline CSS, no JavaScript). Preview:
<a href="https://codexstacks.com/p/ljg-skills/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #3a2c26;border-radius:12px;background:#0d0b0a;color:#f3ece6;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#f3ece6">Ljg Skills</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Community Codex skill · 26 skills</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">基于结构映射理论,为场景或两个对象的差异寻找精妙类比与关系隐喻,保留关键关系、解释增量与迁移边界。USE WHEN 用户说「找个类比」「打个比方」「有什么精妙的隐喻」「用类比讲清两者区别」「换个场景理解」或调用…</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[Ljg Skills on CodexStacks](https://codexstacks.com/p/ljg-skills/)**: Community Codex skill with 26 skills.More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
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