Agent protocols beyond MCP in Julia?

Hello,

I’ve been looking at some of the emerging agent protocols beyond MCP: AG-UI, A2UI, Agent Client Protocol (ACP), Agent Control Protocol (also ACP), and Agent2Agent (A2A).

I haven’t seen much discussion about them in the Julia ecosystem yet. Is anyone already experimenting with or implementing any of these?

I’m asking partly in the context of ManyUI.jl, as some of these protocols seem like they could fit naturally with the idea of defining an application/UI once and exposing it through CLI, TUI, Web, or potentially to AI agents.

Kaimon.jl and KaimonSlate.jl are the de-facto MCP and Agent-enabled notebook respectively.