If Armin and Mario want, they can just as easily move this back into a package and make it an optional thing to support if they want. There was already a heavily used mcp adapter package that they appear to have just finally incorporated fully.
replyThough as time progresses, they are probably going to do the same with sub-agents.
I think MTP is kind of ok, since it's a common protocol, but I think incorporating sub-agents could be a mis-step.
replyThere are a lot of ways to implement sub-agents, and it's not something I need the harness to be opinionated about.
I know builtin tools support opt-out, but it's more bloat. It's also more complexity for the agent to understand when you use it to build extensions for itself.