skill-creator
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations.
Install
git clone https://github.com/openai/codex /tmp/codex && ln -s /tmp/codex/codex-rs/skills/src/assets/samples/skill-creator ~/.claude/skills/skill-creatorFrom README
Skill Creator This skill provides guidance for creating effective skills. About Skills Skills are modular, self-contained folders that extend Codex's capabilities by providing specialized knowledge, workflows, and tools. Think of them as "onboarding guides" for specific domains or tasks—they transform Codex from a general-purpose agent into a specialized agent equipped with procedural knowledge that no model can fully possess. What Skills Provide Specialized workflows - Multi-step procedures for specific domains Tool integrations - Instructions for working with specific file formats or APIs Domain expertise - Company-specific knowledge, schemas, business logic Bundled resources - Scripts, references, and assets for complex and repetitive tasks Core Principles Concise is Key The context window is a public good. Skills share the context window with everything else Codex needs: system prompt, conversation history, other Skills' metadata, and the actual user request.