Google ADK: Open-Source Framework Aims to Bridge Gap Between AI Agent Demos and Production

Google's Agent Development Kit (ADK) is an open-source framework designed to help developers build, evaluate, and deploy production-grade AI agents — the same toolkit Google uses internally for products like Agentspace. Unlike basic prompt-in-a-loop implementations, ADK provides structured building blocks: Agents, Tools, a Runner, and Sessions, enabling planning, tool execution, error recovery, and persistent state. The framework is model-agnostic, supporting Gemini primarily but also other models, and can run locally, on Cloud Run, or within Gemini Enterprise. A key feature is its built-in developer UI, which provides live traces of every tool call and model reasoning step without requiring any frontend code. ADK positions itself as a more robust alternative to frameworks like LangGraph and CrewAI by treating typed Python functions as first-class tools and auto-generating callable schemas from function signatures and docstrings.