Ghostwriter is Replit's AI coding assistant, deeply integrated into the Replit platform. While you can use Replit without Ghostwriter, the AI significantly enhances the experience by offering code generation from natural language, explaining existing code line-by-line, helping debug errors, and even generating entire applications from descriptions. Ghostwriter Chat lets you have conversations about your code, ask for improvements, or request new features. The Generate Code feature can create functions, classes, or entire files based on comments or descriptions. Transform Code helps refactor and improve existing code. Because it's built specifically for Replit's environment, Ghostwriter understands the platform's structure and can help with deployment, environment configuration, and collaboration features. For Replit users, Ghostwriter provides seamless AI assistance without leaving the development environment.