Claude Code Templates is a comprehensive CLI tool and ecosystem for configuring, extending, and monitoring Anthropic's Claude Code. The project provides a curated collection of over 600 AI agents, 200+ custom commands, 55+ MCP integrations, 60+ settings profiles, 39+ automation hooks, and 14+ project templates. Each component is designed to enhance the development workflow by offering domain-specific AI capabilities out of the box. The agent library includes specialized configurations for security auditing, React optimization, database architecture, and many other development domains. Custom slash commands like /generate-tests and /optimize-bundle add quick-access functionality. MCP integrations connect Claude Code with external services including GitHub, PostgreSQL, Stripe, and AWS. The CLI provides real-time session analytics with performance metrics, a mobile-optimized conversation monitor with secure tunneling, installation health checks, and a unified plugin dashboard for marketplace and permission management. The project integrates components from 8+ open-source repositories including K-Dense-AI scientific skills with 139 items and Anthropic official resources with 31 items. With over 916 commits, 55+ contributors, and 19 releases, Claude Code Templates has grown into one of the largest Claude Code extension ecosystems. The web portal at aitmpl.com provides a browsable template catalog, while the management dashboard at app.aitmpl.com offers a beta interface for configuration. The project is MIT licensed and built primarily in Python with JavaScript and HTML components.