Skill Creator

This is meta tooling for building skills themselves. It walks you through the structure of a SKILL.md file, explains the three-level loading system (metadata, instructions, bundled resources), and pushes hard on keeping things concise since context window is shared across everything. The core insight is treating skills like onboarding guides that give agents procedural knowledge they can't have from training alone. Heavy emphasis on progressive disclosure: put only essentials in the main file, split detailed references and framework-specific docs into separate files that get loaded on demand. Useful if you're publishing skills or building internal tooling and want to understand the design philosophy behind keeping agents focused without bloating context.

skills.sh installs: 177
GitHub stars: 2
last updated: Aug 21, 2026

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Install

$ npx -y skills add observerw/skill-creator-skill --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 agent' capabilities by providing specialized knowledge, workflows, and tools. Think of them as "onboarding guides" for specific domains or tasks—they transform agent from general-purpose assistants into specialized assistants 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 agent need: system prompt, conversation history, other Skills' metadata, and the actual user request.

SKILL.md on GitHub