Codex Delegation Skill

Skill by ara.so — Codex Skills collection.

Overview

skill-codex enables Claude Code (or other AI coding agents) to delegate complex coding tasks to the OpenAI Codex CLI. This is useful when you need autonomous multi-file editing, deep code analysis, or refactoring workflows that benefit from Codex's specialized reasoning models.

The Codex CLI supports:

• Multiple GPT models (gpt-5.5, gpt-5.4, gpt-5.3-codex-spark, etc.)
• Adjustable reasoning effort levels (low, medium, high)
• Sandbox modes (read-only, docker, off) for safe execution
• Session resumption for iterative workflows
• Full automation mode for autonomous task completion

Installation

Prerequisites