How does this skill improve performance?

By utilizing progressive disclosure, it keeps the main prompt small (under 500 lines) and only loads detailed domain knowledge when specifically needed, saving tokens and reducing model confusion.

What is a Claude Code Skill?

A Claude Code Skill is a specialized, filesystem-based capability that provides domain-specific guidance, best practices, and implementation patterns to enhance Claude's behavior during specific tasks.

Why use XML tags in SKILL.md files?

XML tags provide a clear, semantic structure that helps Claude distinguish between different types of instructions, leading to better instruction following and more reliable outputs compared to standard markdown headers.

What is the Router Pattern for skills?

The Router Pattern is an organizational structure that uses a central SKILL.md file to identify user intent and then routes the model to specific sub-files in workflows/ or references/ to keep context focused.

Claude Code Skill Builder

Name: Claude Code Skill Builder
Author: glittercowboy

byglittercowboy

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770

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Developer Tools

Provides expert guidance and structured workflows for designing, building, and refining high-quality Claude Code Skills.

This skill serves as a comprehensive framework for developing modular, filesystem-based capabilities within Claude Code. It enforces industry-best practices such as the Router Pattern, XML-based prompting, and progressive disclosure to ensure skills are efficient, maintainable, and easy for Claude to navigate. Whether you are authoring a simple task-execution skill or a complex domain expertise knowledge base, this tool provides the necessary templates, workflows, and principles to optimize Claude's performance and output consistency.

Key Features

01770 GitHub stars

02Automated auditing and verification workflows to maintain skill quality and accuracy

03Router pattern implementation for organizing complex skills into workflows and references

04Standardized templates for workflows, references, and executable scripts

05Progressive disclosure logic to keep SKILL.md files concise and context-efficient

06Pure XML structural enforcement for cleaner prompting and better model instruction following

Use Cases

01Converting monolithic prompt files into modular, router-based skills for better performance

02Bootstrapping a new Claude Code skill from scratch using standardized directory structures

03Auditing existing skills against best practices to improve instruction adherence and reliability

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add glittercowboy/taches-cc-resources create-agent-skills

For use in Claude.ai and ChatGPT

Download Skill