Skill Creator

This is the meta skill for building skills themselves. It walks you through the full philosophy: keep things concise because context windows are shared resources, use progressive disclosure so metadata loads first and details load only when needed, and match your level of prescription to how fragile the task is. The guidance covers when to write instructions versus ship scripts, how to structure the SKILL.md frontmatter and body, and when to split things into references or assets. If you're publishing skills or trying to understand why existing ones are structured the way they are, this codifies the design principles. It's opinionated about brevity and assumes Claude is already smart enough without verbose explanations.

skills.sh installs: 285
GitHub stars: 3.1K
last updated: Aug 21, 2026

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Install

$ npx -y skills add rkiding/awesome-finance-skills --skill skill-creator --agent claude-code

Installs into .claude/skills of the current project.

Files

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

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.

SKILL.md on GitHub