Jev Engineering lets one decision layer steer hundreds of agent paths without letting any branch improvise. one state enters. Jev turns it into typed decisions: → which model gets the call → which tool gets access → which result survives those decisions fan out across routes, models and tools, all answered in the same call because none of them reads another one's answer. then everything collapses back into one verified state. so instead of: LLM → agent → tool → another LLM → another guess you get: state → decisions → parallel routes → execution → verification → next state 400 forks in one run, one call, $0.017 for all of them, and not a single sentence written. the expensive model stays where it belongs: writing. full breakdown in the article below ↓