Jan 14
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Codex Skills are one of the most powerful and underrated features in OpenAI Codex. Instead of repeating prompts, skills let you package workflows into reusable, discoverable instructions that Codex loads only when needed. In this video, you’ll learn: - What Codex skills are - How progressive disclosure works - Real-world skill use cases - How to create your first SKILL.md - Best practices and more This is a practical guide for developers who want Codex to behave like a trained teammate, not just a chatbot. Codex Skills Library: https://github.com/proflead/codex-skills-library The full tutorial: https://proflead.dev/posts/codex-skills-explained-101/ Timestamps: [00:00] - Introduction: What are Codex Skills? [00:46] - How Skills Work (Progressive Disclosure) [01:20] - How to Install Skills (Skill Installer) [02:40] - Demo: Using the "Create Plan" Skill [03:16] - Method 1: Creating Custom Skills via CLI [03:39] - Installing Your Custom Skill [04:06] - Testing the Prompt Optimizer Skill [04:28] - Method 2: Creating Custom Skills Manually [04:57] - Skill Structure & skill.md File [05:40] - Testing the Manual Skill (Writing Assistant) [06:30] - Best Practices for Creating Skills #codex #codexcli #openai