Agent Development Kit (ADK) is a framework for developing and deploying AI agents that applies modern software engineering discipline rather than relying solely on prompting. It introduces familiar abstractions such as classes, methods, workflow patterns and CLI support. Compared to frameworks like LangGraph or CrewAI, ADK’s strength lies in its deep integration with Google’s AI infrastructure, providing enterprise-ready grounding, data access and monitoring. It’s also designed for interoperability, supporting tool wrappers and the A2A protocol for agent-to-agent communication. For organizations already invested in GCP, ADK presents a promising foundation for building scalable, secure and manageable agentic architecture. Though still early in its evolution, it signals Google’s direction toward a native, full-stack agent development environment. We recommend keeping a close eye on its maturity and ecosystem growth.