If you’re a .NET developer watching the current AI landscape, you probably know the feeling. A massive new paradigm drops—in this case, autonomous AI agents—and overnight, Python and TypeScript are flooded with official SDKs, shiny frameworks like LangChain or crewAI, and endless tutorials. Meanwhile, us C# backend devs are left staring at the wall, waiting for an enterprise-grade port that will inevitably be bloated, overly abstracted, and arrive 18 months late. I’ve been writing backend software and integrations for 40 years. I don’t like waiting, and I don't like bloated frameworks. I just wanted a native, high-performance way to build AI agents in C# that can actually do things—read files, query databases, and use the new Model Context Protocol (MCP) without a mountain of boilerplate. Since it didn't exist, I built it. Meet AgentDevKit (ADK) . What is it?…