Replit Agent is an advanced feature within the Replit development environment designed to streamline coding tasks through natural language and artificial intelligence, specifically aiding in database migrations for full-stack applications. Utilizing a serverless Postgres database powered by Neon, Replit Agent automates the creation and modification of application components, including APIs, databases, and frontends, primarily using Flask as a framework. The process is enhanced by integrating Alembic and SQLAlchemy to manage database schema changes, allowing developers to input natural language prompts to generate and apply migration scripts automatically. This capability was demonstrated through the creation of a TODO application that incrementally added features like due dates and task priorities, showcasing the Agent's ability to handle both backend and frontend updates effectively. The system maintains database consistency by generating migration files for each change, which can be rolled back using Alembic if necessary, ensuring developers can focus on application building while the Replit Agent manages underlying structural changes.