Opus Style Output: Skill, which brings GPT/Codex output closer to the Claude Opus style
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In the world of AI agents, the quality of output content is often more important than the raw power of the model. Many developers notice that Claude Opus delivers more structured, readable, and “professional” answers than GPT/Codex.
The opus-style-output repository from 0xsakura666 offers a simple and effective solution – the global Skill, which forces GPT models (particularly Codex) to mimic the strengths of the Claude Opus style.
What does this Skill decide?
| До применения Skill | После применения Skill |
|---|---|
| Длинные, размытые ответы | Чёткая структура: вывод → детали |
| Технический «лог» в итоговых суммах | Профессиональная доставка с эмодзи и разделами |
| Сложные сравнения в тексте | Автоматические Markdown-таблицы |
| Технические названия в UI-текстах | Пользовательские, понятные формулировки |
| Отсутствие визуальной иерархии | ✅ 📁 🧪 ⚠️ 💡 — удобное сканирование |
Major opportunities
- Global application - Skill works by default on almost all Codex responses.
- Opus-like style - calm, clear, structured tone without excess water.
- Priority of tables** for comparisons, planning, code review and architectural solutions.
- **Emoji division improves the readability of long sums.
- Optimize front-end copywriting – short, custom names for buttons, titles, states.
- User Focus - UI texts are written from the point of view of the end user, not the developer.
How to install and use
Installation (for Codex):
cp -R opus-style-output ~/.codex/skills/Skill structure:
SKILL.md- the main file with rulesagents/openai.yaml- metadatareferences/USAGE.md- detailed examples
Automatic use Skill is set to be global:
“Always use this skill globally for Codex responses unless the user explicitly requests a different style.”
Manual call:
- “Use $opus-style-output to summarize changes.”
- Optimize frontend copy with $opus-style-output
Before/after examples
** Summarization of code changes:**
To:
Modified src/components/Header.tsx and updated the CTA logic.
After:
шен ** Completed* * Optimized text of the main button...
ые Affected files
- src/components/Header.tsx
е ** Recommendations**
UI texts:
| Не рекомендуется | Рекомендуется |
|---|---|
| Configure model provider settings | Настройки моделей |
| Agent task orchestration dashboard | Статус помощника |
| Real-time validation pipeline failed | Проверка содержимого не пройдена |
Who would benefit from Skill?
- Developers who actively use Codex/GPT agents in their daily work.
- Teams wishing to unify the style of AI responses.
- Front-end developers and product designers (especially for generating UI copywriting).
- Anyone who wants GPT answers to be closer in quality to Claude Opus.
Limitations
- Skill affects only the output style, not the basic features of the model.
- If necessary, you can turn off, clearly specifying a different style in the prompt.
- Efficiency depends on the base model (it works better on strong GPT-4-class models).
Conclusion
Opus Style Output is a great example of how small, well-designed Skills can dramatically improve the usability of AI agents. Instead of changing the model, you improve the quality of communication.
If you often work with Codex and want more structured, professional, and readable answers, this Skill is definitely worth a try.
Reference to repository: https://github.com/0xsakura666/opus-style-output