General code writing tools including quality checks, testing, architecture, and implementation support
/plugin marketplace add alvis/.claude/plugin install coding@alvisInteractive plugin for creating, designing, and implementing custom subagents in Claude Code with guided best practices
Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques
Complete collection of battle-tested Claude Code configs from an Anthropic hackathon winner - agents, skills, hooks, and rules evolved over 10+ months of intensive daily use
Downloads videos from YouTube and other platforms for offline viewing, editing, or archival with support for various formats and quality options.