What it is
An Elixir library that integrates TypeSafe Jev, a peer process, with OTP GenServers. It lets callers pattern match on Jev's answers directly, enabling non-blocking, concurrent decision-making in Elixir applications.
How it uses Jev
Jev makes decisions via typed questions (Choice, Score, Noul) on any JSON-encodable state. From a GenServer, you reply with questions; Jev's answer arrives as a message in handle_answer/3, where you pattern match on question names, confidence, and probabilities to route logic.
Primitives:choicescorenoul
Technique worth stealing
Use clause order and guards in handle_answer/3 to route based on Jev's confidence and answers, keeping network calls out of tests.
Try it
Add {:jev, "~> 0.1"} to deps, set TYPESAFE_API_KEY, and run mix ci or examples/triage.exs.
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-centricyes0.81
- Shows a System One patternyes0.73
- Handles uncertaintyno0.07
- Measuredno0.04
- Runnableyes0.95
- Worth recommendingyes0.62
- Model replicano0.05
- 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.