I put a second AI in front of my AI. It answers in probabilities, not paragraphs.
Most of this series is about one AI: the coding agent that wrote ParkEase. This post is about a different kind of model, and an experiment in putting it in front of the coding agent. The model is Jev, from TypeSafe. It's what they call a System One model: instead of generating prose, it answers a question with a typed judgment and a probability. A yes/no comes back as a number between 0 and 1. A pick from a list comes back as a choice plus a probability for every option. A rating comes back as a score. That makes it a different tool from a chat model. You don't parse its answer; you branch on it. Claude Code lets you run a script every time you submit a message. I built two of these hooks, with Jev doing the deciding. A skill picker. Given my message and the list of installed skills, which one fits? Same shape of question, a choice over skills, a probability on each. A router that…