Should MCPs defined in a Claude plugin be exposed here?

[mrjones2014]

I'm trying to declaratively set up MCPs via the Nix home-manager module, and it looks like the home-manager module sets them up by generating basically a claude-code-home-manager plugin.

This works when using the Claude Code TUI, but it looks like these don't get loaded into ACP sessions, and I'm unclear if this is something I am (or the home-manager module is) doing wrong, or if this is an SDK limitation, or just not implemented yet in claude-agent-acp.