Verified:GitHub

skill-developer

Create Claude Skills under 500 lines with YAML frontmatter and trigger configuration.

Updated Aug 23, 2026

Search Tags:#AI tools #prompt engineering #skill creation #AI development #skill management #Claude Skills #token optimization

One-click install

npx skills add https://github.com/elevanaltd/oa --skill skill-developer-elevanaltd

Or copy as Structured Prompt for Agent▼

Please help me install this Agent Skill.
Skill: skill-developer
Source: https://github.com/elevanaltd/oa/tree/main/.claude/skills/skill-developer
Command: npx skills add https://github.com/elevanaltd/oa --skill skill-developer-elevanaltd

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Creating effective AI Skills requires adherence to specific structural, content, and trigger guidelines, and managing complexity to ensure optimal AI performance and token efficiency.

Core Features & Use Cases

500-Line Rule Enforcement: Guides how to keep skills concise (<500 lines) using progressive disclosure and resource files, preventing token waste and improving AI processing.
Skill Creation Workflow: Provides a 5-step process from file creation and YAML frontmatter to trigger configuration and testing, ensuring proper skill development.
Trigger Tuning & Validation: Explains how to configure skill-rules.json with keywords and test UserPromptSubmit hooks for accurate skill activation, reducing false positives/negatives.
Use Case: Create a new Claude Skill for "API Security" by following the 5-step process, ensuring it's under 500 lines, has proper YAML frontmatter, and triggers accurately on relevant keywords, making it highly effective for AI.

Quick Start

Create a new skill file my-new-skill/SKILL.md with the required YAML frontmatter and initial content structure.