Skill Creator

If you're building skills for Claude, this is your blueprint. It walks through the three-part loading system (metadata, instructions, bundled resources), explains when to use scripts versus reference docs, and hammers home one rule: be ruthlessly concise because context is expensive. The progressive disclosure patterns are especially useful, showing how to split complex skills across multiple files without bloating the main instructions. Think of it as the skill that teaches you to write skills. The examples are practical (PDF processing, domain-specific organization) and the philosophy is sound: assume Claude is smart, only add what it can't already know, and treat every token like it costs something.

skills.sh installs: 315
GitHub stars: 291
last updated: Aug 21, 2026

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Install

$ npx -y skills add nicepkg/ai-workflow --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 Claude's capabilities by providing specialized knowledge, workflows, and tools. Think of them as "onboarding guides" for specific domains or tasks—they transform Claude 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 Claude needs: system prompt, conversation history, other Skills' metadata, and the actual user request.

SKILL.md on GitHub