Your definition of “remaining useful” seems to require a lot more than mine. An email shim, for example could have destination whitelists, rate limits, an overall message quota, and can have its contents driven by fixed templates which the LLM can choose from, but not inject arbitrary data into. The point is that your claw need not have “do anything” powers, it needs to have extremely constrained powers. Maybe that is, as you say, “not a claw.” In fact, mine calls itself a “clav” because it’s almost a claw, but not quite.