Step into the world of AI agents with the Google Agent Development Kit (ADK). In this foundational workshop, developers will learn how to set up their local Python environment, install the ADK, and securely configure API keys using either Google AI Studio or Vertex AI. We will dive deep into the four core parameters that define every agent's identity: model (the reasoning engine), name (the unique identifier), description (for multi-agent routing), and instruction (the behavioral blueprint). Through hands-on exercises, participants will learn how to transform a generic default assistant into a highly specialized persona, such as a patient algebra tutor, and instantly test its behavior using the local adk web visual interface. You will leave this session with a fully functional agent and the foundational skills to guide LLM behavior.