How do I validate a skill I've created?

You can use the included 'quick_validate.py' script located in the scripts directory to check your skill's structure, YAML frontmatter, and XML compliance.

What is a Claude Code Skill?

A Claude Code Skill is a specialized, modular capability that provides Claude with domain-specific guidance, best practices, and implementation patterns for specific programming tasks.

Can I use this to package skills for other developers?

Yes, the skill includes a 'package_skill.py' utility designed specifically to bundle your custom skills for distribution and shared use within the Claude Code ecosystem.

What is the 'Router Pattern' in skill development?

The Router Pattern uses a central SKILL.md file as a traffic controller, directing Claude to specific sub-files for workflows or references based on the user's intent to keep the context window clean.

Why does this skill use XML tags instead of Markdown headings?

Semantic XML tags provide a more robust structure for Claude to parse, allowing the model to distinguish more clearly between core principles, routing logic, and executable instructions.

Claude Skill Builder

Name: Claude Skill Builder
Author: kylesnowschwartz

bykylesnowschwartz

•

開発者ツール

Standardizes the creation, auditing, and packaging of custom Claude Code skills using modular architectural patterns.

Claude Skill Builder provides a comprehensive framework for developing high-performance, domain-specific capabilities for Claude Code. By implementing the 'Router Pattern,' it enables developers to build complex skills that remain efficient through progressive disclosure and semantic XML structuring. The skill includes automated tooling for initializing new projects, auditing existing prompts against best practices, and packaging modules for distribution, ensuring that every custom skill follows a consistent, optimized logic for AI-assisted programming.

主な機能

01Implements the Router Pattern to manage complex logic without bloating prompt context.

02Enforces progressive disclosure to keep core files under 500 lines for better performance.

0380 GitHub stars

04Uses pure semantic XML structures to maximize AI comprehension and instruction following.

05Includes automated Python scripts for skill initialization, validation, and packaging.

06Provides specialized workflows for both task-execution and domain-expertise skill types.

ユースケース

01Bootstrapping new domain-specific skills for internal software development standards.

02Refactoring monolithic prompts into modular, maintainable Claude Code skills.

03Validating and packaging custom AI workflows for team-wide distribution.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add kylesnowschwartz/simpleclaude sc-skill-builder

For use in Claude.ai and ChatGPT

Download Skill