What it is
jeff is a Go CLI for TypeSafe's Jev model, letting shell scripts, CI jobs, and agents send state plus typed questions and get calibrated probabilities back without writing a client each time.
How it uses Jev
Commands noul, choice, score, eval, and rank send state and typed questions to Jev. Thresholds map to exit codes; rank sends one Score per item per dimension in a single request and computes the weighted composite order in code.
Primitives:noulchoicescore
Technique worth stealing
Keep arithmetic in code: send one Score per item per dimension, then compute the weighted sum yourself.
Try it
go install github.com/saembit/jeff-cli/cmd/jeff@latest, set TYPESAFE_API_KEY, then run jeff noul/choice/score/eval/rank.
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-centricyes0.94
- Shows a System One patternyes0.86
- Handles uncertaintyno0.26
- Measuredno0.05
- Runnableyes0.97
- Worth recommendingunclear0.52
- Model replicano0.03
- Problem scopescore on a 0–2 scale1.00
- About Jevyes0.98
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 22 Sept 2026.