Codex

This delegates complex code generation and refactoring tasks to OpenAI's Codex CLI when you explicitly ask for it. It translates your request into English, runs codex exec or codex review with the right flags, and brings back the results for you to review before applying changes. The skill includes model selection guidance (gpt-5.3-codex for production work, o4-mini for quick iteration, o3 for deep reasoning), sandbox controls, and approval policies to keep things safe. You'd reach for this when tackling architectural refactoring, security reviews, or complex code generation that benefits from GPT-5.3's capabilities. The mandatory rules are sensible: never auto-execute destructive commands, always treat output as suggestions, and don't disable safety guards without explicit permission.

Install to Claude Code

npx -y skills add giuseppe-trisciuoglio/developer-kit --skill codex --agent claude-code