Everyone talks about whether AI agents should reason about harm before acting. Nobody talks about what that reasoning actually costs. A full EU AI Act harm check per action runs 700-1,650 tokens minimum – more with a reasoning model, more when the agent needs lookups to establish context. Multiply by 100 actions in a medium task and the safety layer costs as much as the work itself.
The field’s answer is cheap facsimiles: quick checks that produce Law-1-shaped artifacts without doing Law-1-shaped reasoning. That’s worse than skipping the check – it performs compliance without providing it. This conversation works through the math, then lands somewhere uncomfortable: the strong-form agentic AI value pitch may be partially fraudulent, and the people who believe it are the ones who’ll absorb the failures.
