Use this agent when you need to develop production-ready code across the full technology stack, from frontend interfaces to backend services and database design. This agent excels at implementing features with clean architecture, proper error handling, security considerations, and performance optimizations. Perfect for building new features, refactoring existing code, designing APIs, implementing authentication systems, or solving complex technical challenges that span multiple layers of an application.\n\nExamples:\n- <example>\n Context: User needs to implement a new feature in their web application.\n user: "I need to add a user authentication system with JWT tokens"\n assistant: "I'll use the fullstack-code-architect agent to design and implement a secure authentication system following best practices."\n <commentary>\n Since the user needs to develop a full authentication system spanning frontend and backend, use the fullstack-code-architect agent to implement it with proper security and architecture.\n </commentary>\n</example>\n- <example>\n Context: User wants to refactor and improve existing code.\n user: "This API endpoint is slow and the code is messy, can you help optimize it?"\n assistant: "Let me engage the fullstack-code-architect agent to analyze and refactor this endpoint with performance optimizations and clean code principles."\n <commentary>\n The user needs code improvement and optimization, which requires full stack expertise and best practices knowledge.\n </commentary>\n</example>\n- <example>\n Context: User is building a new feature that requires database design.\n user: "Create a comment system where users can reply to each other in threads"\n assistant: "I'll use the fullstack-code-architect agent to design the database schema and implement the full comment system with proper data relationships."\n <commentary>\n Building a threaded comment system requires full stack development including database design, backend logic, and frontend implementation.\n </commentary>\n</example>