everything-about-jev
Chinese-first guide to Jev with runnable Python, TypeScript, Node and curl demos plus a catalogue of community projects.
This repository is mostly documentation or write-up rather than runnable code.
Overview
Everything about Jev collects usage notes, example code, community projects and discussions about TypeSafe's decision model, written primarily in Chinese with an English version. It explains Choice, Noul and Score with return fields, what Jev suits (classification, routing, screening, bounded action selection) and what it does not, and warns that confidence and the chosen option's probability are different fields.
The quickstart uses a community API at jevai.org by default, with a separate guide for the official TypeSafe SDK. Demos cover a command palette (mapping a sentence to actions such as dark mode), ticket triage with queue, human-needed and urgency, research claim checking, model routing, tool-call guarding and completion checking, in Python, TypeScript, Node.js and curl. CI checks run on the repository.
What the decision model decides
| Type | Question | Answers |
|---|---|---|
| Choice | Which command palette action matches this sentence? | dark_mode · export · help |
| Yes / no | Does this ticket need human handling? | yes · no |
| Score | How urgent is this ticket? | — |
How it works
- Clone the repo and install requirements
- Add a community or official API key to .env
- Run a demo case
- Explore the project catalogue and docs
Strengths
- Many small runnable examples across languages
- Clear explanation of confidence vs probability
- Community project catalogue
Caveats
- Default quickstart uses a third-party community API
- Chinese-first documentation
Getting started
python -m pip install -r requirements.txt, set JEVAI_API_KEY in .env, then python demos/python/quickstart.py.At a glance
- Type
- Project
- Status
- beta
- Language
- Python
- Runtime
- demo scripts (Python, TypeScript, Node, curl)
- Has code
- yes
- Has tests
- yes
- License
- MIT
Use cases and integrations
How curated lists describe it
tell you everything about jev,TypeSafe AI's System One model for typed decisions.
logicrw/awesome-jev-projectsTell you everything about jev,TypeSafe AI's System One model for typed decisions.
hellogumbo/awesome-jev
Frequently asked questions
Which API does it use?
A community API at jevai.org by default; official SDK examples are also documented.
What demos are included?
Command palette, ticket triage, research checks, model routing, tool guard and completion checks.
Is it in English?
Chinese first, with an English README.
Related projects
Awesome list and guide to System One models (Jev, Laya and others) organized around a five-stage agent lifecycle, with comparison tables.
ProjectproductionOpinionated catalog of 84 Jev projects in 11 categories, each with a hand-written reason it is worth looking at.
ProjectproductionUnofficial collection of Jev state formats, question patterns, cookbook index and case studies, plus a ranked Top 30 of community builds.
ProjectproductionBilingual catalogue of 183 Jev applications in 11 categories, explaining how each works and what its demo actually proves.
ProjectproductionRepository behind jevhub.io: plain-English Jev guide, ready-to-run examples, cost data and a directory of community builds.
ProjectproductionPublic contribution repo for modelsystem.one, a curated catalog of System One decision models such as Jev.
Projectproduction