Yes we need capability based auth on the systems we use.
I'm sure we will get them but only for use with in-house agents, i.e. GMail and Google Pay will get agentic capabilities but they'll only work with Gemini, and only Siri will be able to access your Apple cloud stuff without handing over access to everything, and if you want your grocery shopping handled for you, Rufus is there.
Maybe you will be able to link Copilot to Gemini for an extra $2.99 a month.
I do not forsee GoogleClaw, MetaClaw, and AppleClaw all playing well with each other. Everyone will have their own walled garden and we will be no better off than we are now.