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codex-5-3-prompting
How to write system prompts and instructions for GPT-5.3-Codex. Use when constructing or tuning prompts targeting Codex 5.3.
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nicobailon
Updated 3/13/2026
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quick start
Installation and usage
How to write system prompts and instructions for GPT-5.3-Codex. Use when constructing or tuning prompts targeting Codex 5.3.
Installation
$ install --globalskills.sh
Usage
Once installed, you can use this skill by running the following command in your terminal:
skills use codex-5-3-prompting