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.
npx skills add composio-community/awesome-codex-skills --skill skill-creator --agent codex
Same command for any agent — swap --agent for claude-code, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Skill Creator This skill provides guidance for creating effective skills. ## About Skills Skills are modular, self-contained packages 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 1. Specialized workflows - Multi-step procedures for specific domains 2. Tool integrations - Instructions for working with specific file formats or APIs 3. Domain expertise - Company-specific knowledge, schemas, business logic 4. 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. **Default assumption: Codex is already very smart.** Only add context Codex doesn't already have. Challenge each piece of information: "Does Codex really need this explanation?" and "Does this
- About Skills
- What Skills Provide
- Core Principles
- Concise is Key
- Set Appropriate Degrees of Freedom
- Anatomy of a Skill
- Progressive Disclosure Design Principle
- Skill Creation Process
- Skill Naming
- Step 1: Understanding the Skill with Concrete Examples
- Step 2: Planning the Reusable Skill Contents
- Step 3: Initializing the Skill
- Step 4: Edit the Skill
- Step 5: Packaging a Skill
scripts/init_skill.py <skill-name> --path <output-directory> [--resources scripts,references,assets] [--examples] scripts/init_skill.py my-skill --path skills/public scripts/init_skill.py my-skill --path skills/public --resources scripts,references scripts/init_skill.py my-skill --path skills/public --resources scripts --examples scripts/package_skill.py <path/to/skill-folder> scripts/package_skill.py <path/to/skill-folder> ./dist
What does the skill-creator skill do?
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.
How do I install it?
Run `npx skills add composio-community/awesome-codex-skills --skill skill-creator --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From composio-community/awesome-codex-skills, a repository with 15,591 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.