Building Multi-Agent Systems That Communicate Reliably with the A2A Protocol

Multi-agent systems often fail because agents don't speak the same language. This article explores Google's A2A (Agent-to-Agent) Protocol as the "universal translator" solution. We build "StoryLab," a practical system with three agents (Orchestrator, Creator, Critic) using Python and Ollama, demonstrating how standardizing discovery (Agent Cards) and communication (Message Envelopes) solves the interoperability crisis.