This project focused on the advanced configuration of "Gems"—customized versions of the Gemini AI. My role was to engineer the "Master Instructions" that govern their behavior, enabling them to function as dual-mode chatbots. I designed these agents to switch seamlessly between a rigid, step-by-step instructional mode for complex tasks and an open-ended generative mode for creative exploration. By operating entirely within the Gemini chat interface, these tools provide a sophisticated, text-based user experience without the need for external software development.