Skill Creator

If you're building skills for Claude, start here. This walks you through the complete architecture: how to structure SKILL.md with frontmatter and instructions, when to bundle scripts versus references versus assets, and how to use progressive disclosure so you're not burning context tokens on stuff Claude doesn't need yet. The core insight is treating skills like onboarding docs, not documentation dumps. It's opinionated about keeping things concise (context window is a public good) and matching specificity to fragility. Includes concrete patterns for splitting large skills across files and explains the three-level loading system that makes the whole thing work without bloating every conversation.

skills.sh installs: 483
GitHub stars: 474
last updated: Aug 21, 2026

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Install

$ npx -y skills add freestylefly/canghe-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 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