Some calls in your agent never needed a model that can write. Which tool runs next. Whether this action is safe to run without a human. Whether a retrieved passage is relevant. Those are decisions, not generation. We read the source of 100+ open-source projects that hand exactly those calls to JEV. What we found most useful was not the model call. It was the code around it: one project validates every probability before it clicks, one puts an anti-injection rule in its routing prompt, and one...