Layered agent architecture routes cheap decisions through Jev
A guide describes how an always-on agent can be layered: Jev handles cheap judgments, Sol does everyday work, Astra takes hard problems, code controls executable actions, and humans approve irreversible operations.
THE BEST AI AGENT MIGHT BE THE ONE THAT KNOWS WHEN NOT TO USE THE BEST MODEL. An always-on agent makes thousands of tiny decisions overnight. “Is this urgent?” “Should I retry?” “Does this need approval?” “Which worker should handle it?” Sending all of that to a frontier model is like hiring a surgeon to answer the receptionist’s phone. The architecture in this guide flips it: Jev routes the cheap decisions. Sol handles everyday work. Astra gets the genuinely hard problems. Code controls what can actually happen. Humans approve the irreversible. That changes the economics of autonomy. The goal isn’t a smarter agent. It’s an agent that knows when intelligence is worth paying for.
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