ljg-explain SKILL.md skillA
ljg-explain from lijigang/ljg-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lijigang/ljg-skills/ljg-explain@v1.0.2Pins v1.0.2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lijigang/ljg-skills
- Path
skills/ljg-explain/SKILL.md- Versions recorded
- 3
- Latest version
- v1.0.2, committed Oct 12, 2026
- First version recorded
- Oct 3, 2026
- Size
- 8,499 bytes
- Repository stars
- 7,668
- License
- MIT
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。.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# ljg-explain：讲到能用 让读者听得懂，也能独立认出新例子、解释结果怎样产生、知道条件变化后该怎样改判断。把这几件事作为完成标准，组织方式由内容决定，不把它们机械排成五个栏目。 用「目的、结构、案例、论证」接通知识：目的说明要回答什么问题，结构说明要素怎样关联，案例让关键关系可见，论证交代为何成立、有效及其限度。四问用于组织和检查讲解，不规定输出顺序或栏目；读者能否使用知识，仍以下面的理解标准为准。 ## 读者与交付 - 先使用本次请求与已有上下文中的知识背景、用途和卡点。未说明时，按有日常经验、缺少专业知识的成年人讲解；缺少必要前置知识，就补上够用的那一小段。 - 能合理确定含义就直接讲；只有不同解释会改变讲解对象时才澄清，不能为了填写背景表而中断。 - 默认一次完整输出到对话，在讲解自然收束处结束，不在结尾追加自测题或参考答案；用户明确希望互动时，再按需分轮讲解。 - 默认不写笔记或其他文件。用户要求保存时，遵守指定格式与位置；普通聊天用 Markdown，Org 产物才使用 Org 语法。 ## 理解标准 讲解应让读者做到以下事情，材料可以交织在同一条叙述中： 1. **知道为什么需要它。** 从一个真实疑惑或具体问题接到核心定义，说明它属于什么、帮助分清什么或作出什么判断。用途也包括解释现象、理解作品。让这个问题贯穿后面的结构与论证；概念尽早出现，背景只保留理解所必需的部分。 2. **能辨认它。** 典型例子与容易混淆的对照都给出判断依据，指出哪些特征决定归类、哪些只是表面相似。优先使用差异很小但判断不同的例子；做不到单条件对照时，如实说明，不编造伪反例。 3. **能解释结果。** 讲清关键要素、彼此关系及各自作用，让读者看见它们怎样共同回答起初的问题。机制讲因果过程；数学关系讲定义、逻辑和数量关系；经验规律交代证据与条件。方法与工具还要说明其结构怎样服务于用途，以及带来的代价。替代安排有助于理解时，比较它会改变什么，说明当前选择的理由；不必穷举方案，也不能把一种可行构造说成唯一必然。 4. **能随条件改判断。** 在原情境里改变一个关键条件，并交代其余条件如何保持，说明结果怎样变化、原判断何时失效。变化既可以翻转结论，也可以改变程度或可信度。 5. **能迁移。** 用一个表面不同的新情境展示怎样识别相同的关键关系，说明判断依据与必要条件。 尽量让一个对象或情境贯穿定义、机制、条件变化，减少读者反复重建场景的负担。新情境用来展示迁移；文学、叙事与审美材料保留自身含义，不强改成规律或习题。 内部结构难懂时，可在同一案例中移除或替换一个关键部分，交代其他关系如何保持或随之改变，说明哪些能力受损、哪些仍然成立；不预设少一部分就全盘失效。这个检验服务于理解结构，无须每次额外增加一个例子。 ## 公式与原理 …
Read the whole file at its exact version.
How to install
mdr add lijigang/ljg-skills/ljg-explain@sha256:991c537eea779604The line at the top of this page pins the label v1.0.2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_crrjzcjgy66nunss)
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Versions
The registry has recorded 3 versions of this file, between Oct 3, 2026 and Oct 12, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.2 latest | 2026-10-12 | 2c82b3d | 8,499 B | A | view · diff |
| v1.0.1 | 2026-10-06 | c7cf8ef | 6,929 B | A | view · diff |
| v1.0.0 | 2026-10-03 | 7449831 | 7,034 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8499 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
lijigang/ljg-skills · 7,668 stars · license MIT · pushed 2026-11-02 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_crrjzcjgy66nunss GET https://markdownregistry.com/api/v1/resolve?ref=lijigang/ljg-skills/ljg-explain GET https://markdownregistry.com/api/v1/blob/991c537eea77960460c7c48772a0cd562d485afd5f4fb589d637509117de2a63
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.