What it is
A small framework for building agents on TypeSafe Jev. It turns candidates into valid Jev questions and answers into validated choices, with loop, cross-checks, fallbacks and traces built in. For developers building Jev-based agents.
How it uses Jev
Jev makes choices among candidates supplied by the program. The framework builds the state, fans out questions, validates answers, cross-checks DONE and stuck, detects repeats, falls back visibly when Jev is unsure, and traces every step. Results are used to act via the app's act callback.
Primitives:choice
Technique worth stealing
Express every agent action as a choice among program-supplied candidates; route anything that must be produced through explicit callbacks.
Try it
npm install github:chy4pro/jev-dev-kit#v0.3.2
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-centricyes0.93
- Shows a System One patternyes0.78
- Handles uncertaintyno0.26
- Measuredno0.04
- Runnableyes0.73
- Worth recommendingunclear0.55
- Model replicano0.10
- Problem scopescore on a 0–2 scale1.03
- About Jevyes0.98
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.