This repository is a comprehensive skill manager for AI agents, providing a CLI tool (Node.js and Python) to search, install, list, and update a large library of over 300 skill definitions. The skills are structured markdown files with YAML frontmatter, each defining a specific capability or workflow for an AI assistant (e.g., code review, security audit, database optimization, TDD orchestration). The application includes a catalog generation pipeline, validation scripts with baseline support, and CI checks to ensure skill quality and consistency. While the bulk of the repository is composed of skill content (instruction playbooks), the active software layer—the CLI, catalog builder, and validator—represents a well-engineered dual-language application with tests and automation.