What it is
A Tetris game where deterministic code enumerates every reachable placement, including tucks and spins, and writes each as an English sentence. Jev returns a probability for all options across five Choice questions; the highest-weighted option is played and the whole distribution is drawn on the board.
How it uses Jev
Each frame, code searches all placements and describes each in a sentence. These sentences become options of five multiple-choice questions. Jev returns a probability for every option. The code plays the highest-ranked option. The board shows the whole distribution before the piece drops.
Primitives:choice
Technique worth stealing
Enumerate all legal placements, describe each in English, and let a judgment model rank them.
Try it
npm run dev (needs TYPESAFE_API_KEY) or npm run dev:mock for fake answers.
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-centricyes0.97
- Shows a System One patternyes0.88
- Handles uncertaintyno0.05
- Measuredno0.13
- Runnableno0.29
- Worth recommendingyes0.61
- Model replicano0.16
- Problem scopescore on a 0–2 scale0.00
- About Jevyes0.98
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.