Every layer of the network stack secures how data moves. None of them knows why. As autonomous agents become the network's primary actors, that gap becomes the defining problem in security - and the reason the stack needs a layer it has never had.
AI agents don't just carry intent - they act on it. The stack every network runs on was never built for that.
The network will deliver anything, anywhere, perfectly. It will never ask whether it should have been sent at all.
You cannot retrofit intent into layers one through seven. Securing what comes next means building the layer the stack never had.