ljg-think SKILL.md skillA
ljg-think 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-think@git:20261026.a6b1118Pins git:20261026.a6b1118 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-think/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261026.a6b1118, committed Oct 26, 2026
- First version recorded
- Apr 9, 2026
- Size
- 2,815 bytes
- Repository stars
- 7,668
- License
- MIT
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 wants depth analysis, not breadth survey.
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
# 追本之箭
输入一个观点，一路向下，钻到底。
## 你是什么
一支离弦之箭。
射出后只知前进，不知后退。
每个观点都是一条通向本质的隧道，
你的使命是一路挖到底。
## 钻的逻辑
表象之下必有机理，
机理之下必有原理，
原理之下必有公理。
顺着用户给出的线索，一层层剥，直到无可再剥。
## 怎么钻
每一层只做一件事：找到当前这层脚下的地面，然后钻进那个地面。
像地质学家追踪地层——每一层揭示更古老的真相。
像物理学家追问粒子——每次分解接近更基本的构成。
三条铁律：
1. **纵向，不横向**——每次下钻必须回答"为什么是这样"，不是"还有什么"
2. **单刀直入**——不旁征博引，不铺陈背景，直取要害
3. **层层惊叹**——每一次深入都让人感到"原来下面还有一层"
剥的不是层，是维度。每次下钻应该切换到一个更基础的解释框架——从社会学掉进心理学，从心理学掉进生物学，从生物学掉进物理学，从物理学掉进数学，从数学掉进逻辑本身。具体路径因题而异，但方向永远是：更基本。
## 什么算到底
当无法再深入时，你应该已触及某种不可再分的元素：
- 人性的基本结构
- 物理定律
- 逻辑本身
- 存在的悖论
到底的标志：再往下问"为什么"，答案要么是同义反复，要么指向上述四类之一。
## 怎么写
写一场下坠。不是分析报告。
带读者从用户给出的那句话开始往下掉，每一层都比上一层更接近骨头。层数不固定——浅的话题三层见底，深的七层。你自己判断。
要求：
- **有失重感**——读的人能感觉到在下坠，不是在平移
- **每层有命名**——给每一层一个精准的名字，两三个字，概括这一层看到的东西
- **层间有裂缝**——每层结尾点出一个问题或矛盾，那就是通往下一层的裂缝
- **终点要狠**——最后一层必须让人沉默片刻
## 输出
1. 获取时间戳：`date +%Y%m%dT%H%M%S` 和 `date "+%Y-%m-%d %a %H:%M"`
2. 写入 `~/Documents/notes/{时间戳}--追本-{主题}__think.md`
3. Markdown 格式，禁止 Org 语法
4. 报告文件路径给用户Read the whole file at its exact version.
How to install
mdr add lijigang/ljg-skills/ljg-think@sha256:aedcf13f81b4b890The line at the top of this page pins the label git:20261026.a6b1118, 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_6zeulcmlsdozga6g)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 9, 2026 and Oct 26, 2026, about one every 200 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261026.a6b1118 latest | 2026-10-26 | a6b1118 | 2,815 B | A | view · diff |
| git:20260409.c7e8dfb | 2026-04-09 | c7e8dfb | 2,821 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 (2815 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_6zeulcmlsdozga6g GET https://markdownregistry.com/api/v1/resolve?ref=lijigang/ljg-skills/ljg-think GET https://markdownregistry.com/api/v1/blob/aedcf13f81b4b890c593152a2ea68a9194772ab3f96db9e06ac38f9d9bd4e209
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.