# Contradiction Analysis (agent skill)

> Contradiction Analysis is an agent skill (a SKILL.md file) from HughYau/qiushi-skill. 矛盾分析法：把复杂问题拆成若干对立面，找出规定其他矛盾的主要矛盾及其主要方面，判定对抗性 / 非对抗性，并据此选择处理方式。当问题头绪多、多个因素互相牵制、优先级不清、根因不明、反复修不好、trade-off 说不清时触发；直接执行类任务或用户已定方案时不触发。 English: Contradiction analysis. It works with Claude Code, Codex, Cursor and OpenCode and has 3,805 GitHub stars across a repository of 3 listed skills. Install it by copying the skill folder into your agent's skills directory.

矛盾分析法：把复杂问题拆成若干对立面，找出规定其他矛盾的主要矛盾及其主要方面，判定对抗性 / 非对抗性，并据此选择处理方式。当问题头绪多、多个因素互相牵制、优先级不清、根因不明、反复修不好、trade-off 说不清时触发；直接执行类任务或用户已定方案时不触发。 English: Contradiction analysis. Decompose a tangled problem into opposing forces, isolate the principal contradiction and its dominant side, classify it as antagonistic or non-antagonistic, and choose the response accordingly.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/HughYau/qiushi-skill |
| Skill path | skills/contradiction-analysis/SKILL.md |
| Skill name | contradiction-analysis |
| GitHub stars | 3,805 |
| Installs on skills.sh | not listed |
| License | MIT |
| Skills in repo | 3 |
| Plugin marketplace | qiushi-skill |
| Official | no |
| Works with | Claude Code, Codex, Cursor, OpenCode |
| Category | Data & analysis |
| Last commit | Oct 1, 2026 |

## When it triggers

- Trigger on unclear priorities, unknown root causes, recurring failures, or trade-offs that resist explanation; skip for direct execution or when the user has already chosen the solution.

## Add this skill

### Claude Code

```sh
/plugin marketplace add HughYau/qiushi-skill
/plugin install qiushi-skill@qiushi-skill
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/HughYau/qiushi-skill.git
cp -r qiushi-skill/skills/contradiction-analysis .agents/skills/contradiction-analysis   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/HughYau/qiushi-skill.git
cp -r qiushi-skill/skills/contradiction-analysis .cursor/skills/contradiction-analysis   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

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Canonical page: https://appsgit.com/skills/hughyau-contradiction-analysis
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