Explore the lab

A FIELD GUIDE TO JEV / VOL. 01

SMALL
DECISIONS.
BIG
POSSIBILITIES.

The best of Jev. Real projects, practical guides and ideas from across the internet.

Explore the lab Guides

1,195resources16languagesFind something
worth building.

IN THE SPOTLIGHT SOURCE: X

Gregor Zunic@gregpr07

Browser Use + Jev

Gregor Zunic's flight-search demo with a dynamic DOM action space.

Browser Use + Jev

Explore this project

01 / A small decision engine. A whole new way to build.

7 resources / The collection

AI-assisted summaries and translations. Check original sources for context and performance claims.

jev-typesafe-aiWEB

What is Jev?

Short practical intro with a Python ticket-triage example.

Decisions & routing

English

itemWEB

Hacker News launch thread

1,800-point thread debating whether typed decisions replace LLM calls for classification, routing, and scoring.

Decisions & routing

English

flaviocopes.comWEB

Jev: typed decisions, not text

A guide explaining Jev's approach to making typed decisions rather than processing text.

Decisions & routing

English

pypi.orgWEB

langchain-typesafe

A LangChain package with TypeSafeClassifier for integrating Jev into applications.

Decisions & routing

English

www.langchain.comWEB

Building a harness with Jev

A guide on using Jev to route between models and block risky tool calls.

Decisions & routing

English

developers.cloudflare.comWEB

Jev on Cloudflare

Jev is utilized for decision-making processes on Cloudflare, including support routing and risk management.

Decisions & routing

English

blogWEB

One judge call vs twelve dimension scores

One direct Jev question per row against 12–14 Jev-scored dimensions with locally fitted weights on three classification tasks: 5,477 test rows, 25,174 Jev calls, $1.43. Decomposition wins on Japanese NLI (0.9076 vs 0.8373) but flags about 25× more hard benign rows as attacks (37.2% vs 1.5%).

Decisions & routing

English