Implementing A2A Protocol for Multi-Agent Communication

If you've ever wired two AI agents together, you know the drill. Custom JSON schemas, bespoke HTTP endpoints, and a growing pile of adapter code that nobody wants to maintain. Google's A2A (Agent-to-Agent) protocol is the answer to that mess, and I've been implementing it across OpenClaw and Hermes agents on Rapid Claw for the past few weeks. Here's what the implementation actually looks like. What A2A solves (and what it doesn't) A2A standardizes the message envelope between independent agents.