Protocols for agent interop are important, but beyond message passing you also need state coordination.

Two agents agreeing on a protocol doesn't prevent them from corrupting shared state through concurrent writes. You need an additional coordination layer — atomic propose/validate/commit — on top of whatever protocol you use.

We built this as a framework-agnostic layer supporting 14 frameworks including MCP and A2A: https://github.com/Jovancoding/Network-AI