Introduction
Unit 1 of 7 · Module 15: Discover Azure AI Agents with A2A
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Agents on different islands
Picture three islands. On one, a shop writes catchy headlines. On another, a studio writes article outlines. They're great at their jobs, but they're run by different teams, on different servers, maybe even on different platforms. Getting them to work together by hand, sending files back and forth and remembering who does what, gets messy fast. The agent-to-agent protocol, or A2A, is a shared way for agents to find each other, talk, and hand work along, wherever they live. It covers three things: discovery, so agents can learn what others can do; communication, a common format for requests and replies; and coordination, so a request reaches the right agent at the right step.
The blog post
Here's the scenario for this module. A technical writer wants help with a blog post. A title agent suggests a strong headline, and an outline agent turns that headline into a structure. A routing agent in the middle runs the show: it sends the writer's request to the title agent, passes the title to the outline agent, and returns the finished outline, all by itself. In this module, you'll learn how an A2A agent describes itself, how it handles requests, how to host it as a server, and how a client connects to it. Then you'll build the three-agent blog team yourself.
Facts from Microsoft's documentation: Agent Framework: Agent-to-Agent (A2A) (CC BY 4.0), rewritten in Loop's own words and examples. Narration, animation, and quiz by Loop. Microsoft, Azure, and Microsoft Foundry are trademarks of Microsoft. Loop is independent and not affiliated with or endorsed by Microsoft.