What are the required fields for a Claude Skill?

Every skill must have a YAML frontmatter containing a 'name' (maximum 64 characters) and a 'description' (maximum 1024 characters) explaining what it does and when to use it.

What is a Claude Code Skill?

A Claude Code Skill is a specialized capability defined in a SKILL.md file that provides domain-specific guidance and implementation patterns for Claude to follow autonomously.

Why does this skill use progressive disclosure?

Progressive disclosure allows Claude to scale to 100+ skills by only loading metadata initially, bringing in full instructions only when a specific skill is triggered to save context.

Where should I store my custom skills?

Personal skills should be placed in ~/.claude/skills/[skill-name]/, while project-specific skills go in your project root at .claude/skills/[skill-name]/.

Skill Builder

Name: Skill Builder
Author: Microck

byMicrock

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開発者ツール

Streamlines the creation of production-ready Claude Code Skills using standardized YAML frontmatter and progressive disclosure architecture.

概要

Skill Builder is an essential utility for developers looking to extend Claude's capabilities through custom skills. It enforces the official Claude Skills specification, guiding users through the creation of mandatory directory structures, YAML metadata, and a three-level progressive disclosure system designed to minimize context window usage. By following these patterns, developers can create highly efficient, autonomously discoverable tools for both personal productivity and team-wide project workflows.

主な機能

81 GitHub stars
Implementation of 3-level progressive disclosure architecture
Standardized YAML frontmatter generation for skill discovery
Automated directory scaffolding for personal and project-based skills
Best-practice templates for scripts and resource folders
Context-optimization guidance for managing 100+ concurrent skills

ユースケース

Scaffolding new team-shared skills for project-specific automation
Architecting complex documentation sets that scale without context penalties
Converting local scripts into discoverable Claude Code capabilities

概要

主な機能

81 GitHub stars
Implementation of 3-level progressive disclosure architecture
Standardized YAML frontmatter generation for skill discovery
Automated directory scaffolding for personal and project-based skills
Best-practice templates for scripts and resource folders
Context-optimization guidance for managing 100+ concurrent skills

ユースケース

Scaffolding new team-shared skills for project-specific automation
Architecting complex documentation sets that scale without context penalties
Converting local scripts into discoverable Claude Code capabilities