Even though the plugins communicate over msgpack-rpc, there needs to be integration to support the best way of finding and executing them. There's a lot of deba

Even though the plugins communicate over msgpack-rpc, there needs to be integration to support the best way of finding and executing them. There's a lot of debate in the discussion between a process-per-plugin approach like you assumed (and like the proposed go plugin interface implements) and a plugin-host approach where a single process runs all of a given language's plugins (like the python plugin interface implements).