Developer puts Jev inside a coding agent to control model choice and tool calls
In an agentic coding harness, Jev handles bounded choices such as which model to run, what step to take next and which tools to expose, returning a typed decision that the host validates before execution.
Most AI agents are built to act. The interesting ones are being built to decide first. This builder put Jev inside an agentic coding harness to handle bounded choices like: → Which model should run the task? → Inspect, implement, verify, or answer? → Which tools should be available next? Jev returns a typed decision, while the host validates it before anything executes. That creates a cleaner architecture: Model decides. Harness controls. Tools execute. The bigger idea is turning every agent decision into something you can trace, test, replay, and improve.
This post quotes another post: “A complete guide to getting started building with Jev”