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Root-Rank Decomposition Engine

Breaks any domain down to its few irreducible generators and checks them with Deutsch-style tests.

Source Download skill
Repository
lijigang/ljg-skills
Stars
7,607
Licence
MIT
Files
1 file

What it does

When you give the agent a field, such as startups, physics or economics, it works out the few independent underlying forces that make that field run, instead of listing many surface factors. It checks that these forces can regenerate the phenomena, that none can be removed, and that the explanation is tight (hard to vary). The output is written as a Chinese-language prose essay with an ASCII diagram of how the forces relate.

Great for

  • People who want a structured way to explain a complex field in a few core principles
  • Writers or thinkers who enjoy deep essays on how a domain works
  • Users comfortable reading Chinese prose and ASCII diagrams

Skip it if

  • Quick factual lookups or practical how-to tasks, since the output is a philosophical essay rather than instructions
  • Users who need English output, because the skill is tuned to Chinese-language writing style and its prose rules
  • Decisions with real stakes that rely on the framework alone, since its conclusions are interpretive and it asserts no empirical verification

Try asking

  • “降秩 创业”
  • “这个领域靠什么撑着：城市交通”
  • “找秩：免疫系统”
  • “背后是什么：民主制度”
Step-by-step guide: how to use Root-Rank Decomposition EngineInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 1 original files, the MIT licence and an attribution note.

    ljg-rank.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip ljg-rank.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip ljg-rank.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Give a clear, bounded domain name so the decomposition stays focused
  • Ask for the diagram type explicitly if you want a specific layout
  • Treat the output as a thinking framework and verify claims against sources before relying on them

What's inside

  • SKILL.md

Redistributed unmodified from lijigang/ljg-skills under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.