Skill Builder What This Skill Does Creates production-ready Claude Code Skills with proper YAML frontmatter, progressive disclosure architecture, and complete file$folder structure. This skill guides you through building skills that Claude can autonomously discover and use across all surfaces (Claude.ai, Claude Code, SDK, API). Prerequisites - Claude Code 2.0+ or Claude.ai with Skills support - Basic understanding of Markdown and YAML - Text editor or IDE Quick Start Creating Your First Skill --- Complete Specification 📋 YAML Frontmatter (REQUIRED) Every SKILL.md must start with YAML frontma…