Skill Builder

If you're building Claude Code Skills and want to skip the boilerplate setup, this handles the scaffolding work. It generates the YAML frontmatter, progressive disclosure architecture, and folder structure that Claude needs to discover and use skills across its surfaces. The skill walks you through creating properly formatted SKILL.md files with examples and best practices baked in. It's meta in the best way: a skill that helps you write skills. Most useful when you're spinning up multiple skills or want to make sure you're following the current spec without constantly referencing docs. Saves time on the mechanical parts so you can focus on what your skill actually does.

GitHub stars: 67.2K
last updated: Aug 21, 2026

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Install

$ npx -y skills add ruvnet/ruflo --skill 'Skill Builder' --agent claude-code

Installs into .claude/skills of the current project.

Files

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

# 1. Create skill directory (MUST be at top level, NOT in subdirectories!)
mkdir -p ~/.claude$skills$my-first-skill

# 2. Create SKILL.md with proper format
cat > ~/.claude$skills$my-first-skill/SKILL.md << 'EOF'
---
name: "My First Skill"
description: "Brief description of what this skill does and when Claude should use it. Maximum 1024 characters."
---

# My First Skill

## What This Skill Does
[Your instructions here]

## Quick Start
[Basic usage]
EOF

# 3. Verify skill is detected
# Restart Claude Code or refresh Claude.ai

Skill Builder

Install

Files

Skill Builder

What This Skill Does

Prerequisites

Quick Start

Creating Your First Skill

Complete Specification

📋 YAML Frontmatter (REQUIRED)

Details

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