The modern AI stack for developer productivity refers to a comprehensive set of AI-powered developer tools that improve developer efficiency in building software by automating tasks, providing quick access to information, and ensuring quality. The three key components of the modern AI stack are Knowledge, Code Generation, and Code Review, which work together to enhance the development process. Knowledge pillar helps developers gather and synthesize knowledge through chat or question-and-answer sessions, while code generation tools assist in writing code snippets and entire modules, accelerating coding processes. The code review pillar ensures quality, compliance, and optimization by analyzing code for patterns, anomalies, and compliance with coding standards, offering insights and suggestions for improvements. By prioritizing the Knowledge and Code Review pillars over Code Generation, developers can ensure high standards of code quality and meet users' needs more effectively.