What it is
A Pi coding agent extension that adds automatic per-request model routing. Jev chooses a model and reasoning effort once per session, then both stay fixed while generation uses your existing Pi providers and credentials.
How it uses Jev
On the first main request, Jev evaluates recent user/assistant text plus route and effort descriptions to pick one eligible model and effort level together. The result becomes a session pin used for generation; monitoring may later suggest a fork, never switch automatically.
Primitives:choice
Technique worth stealing
Choose once, stay pinned: one Jev decision fixes model and effort for the whole session, with advisory monitoring instead of automatic switching.
Try it
pi install npm:pi-jev-router, then /reload and /model auto/jev.
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricyes0.85
- Shows a System One patternno0.26
- Handles uncertaintyno0.04
- Measuredno0.04
- Runnableyes0.98
- Worth recommendingno0.36
- Model replicano0.03
- Problem scopescore on a 0–2 scale1.01
- About Jevyes0.98
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.