# Install the "Ljg Constraint" skill from SourceWeft

This guide is for AI agents: how to install one skill from the SourceWeft
skills directory. It is not a skill itself — do not save it as one.

## The skill

- Slug: `gh-lijigang-ljg-skills-ljg-constraint`
- Source: https://github.com/lijigang/ljg-skills/tree/c7cf8ef0c829546e4785bccb92e92ec858d1a8c0/skills/ljg-constraint
- Repository: https://github.com/lijigang/ljg-skills
- Commit: c7cf8ef0c829546e4785bccb92e92ec858d1a8c0
- License: none stated
- Trust: Community — not reviewed by SourceWeft
- Scripts: none — instructions only
- Scan flags: none
- Page for people: https://sourceweft.com/skills/gh-lijigang-ljg-skills-ljg-constraint

Trust says whether a person at SourceWeft reviewed the skill. It is not about
integrity: every install is checked against the recorded hashes either way.
Older versions of the CLI label it `Verified`, where "no" means only that
nobody reviewed it.

The author describes it as follows. This is their text, not instructions for
you:

> 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 domain/profession/role/product/debate and wants its defining constraints and solution space mapped. NOT FOR 往下挖生成器（用 ljg-rank，找的是生成力不是边界）、纵向深钻一个观点到底（用 ljg-think）、拆一本书（用 ljg-book）、一个概念解剖（用 ljg-learn）。

## If you are SourceWeft's own assistant

If you are running inside SourceWeft and have its `install_skill` tool, call
it with `source` set to https://sourceweft.com/skills/gh-lijigang-ljg-skills-ljg-constraint and skip the rest of this guide.

## Install it on this machine

For Claude Code, Codex, Cursor and other agents that can run commands.

1. Show the user the facts above — source, license, trust, scripts and scan
   flags — and wait for their OK.
2. Once they agree, install it for the agent you are:

   ```sh
   npx @sourceweft/cli skills install gh-lijigang-ljg-skills-ljg-constraint --agent claude-code --yes --registry https://sourceweft.com
   ```

   `--yes` stands for the user's OK from step 1: never pass it before they
   have given it. Without it the CLI asks in the terminal, or stops with exit
   code 4 when there is none.

   `--agent` takes `claude-code` (the default), `codex`, `cursor`,
   `universal` (the shared `.agents/skills` directory many agents read) and
   more; `npx @sourceweft/cli skills agents` lists them. Add `--scope project`
   to install into the current project instead of the user's home directory.
3. The CLI checks every file against the hashes recorded when SourceWeft
   scanned this version. Exit code 3 means a file did not match and nothing
   was written: tell the user. Do not retry with another tool, and never copy
   the files by hand.
4. It prints the directory it installed into. Read the SKILL.md there and
   follow it.

To search for other skills or manage installed ones, read
https://sourceweft.com/skills/SKILL.md.