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.

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.

50 resources / The collection

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

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Quick start

Shortest path from an API key to a typed decision.

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HTTP API reference

Request and response contract for POST /v1/systemone.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
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Primitives

Choice, Score, and Noul: the three question types and what they return.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
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Cookbooks

Reproducible recipes: parallel questions, reranking, guardrails, citation checks, extraction, hierarchical classification.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
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TypeSafe AIDOCS

Jev 1.13 jaggedness

Known failure modes of the current public model, documented by TypeSafe.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
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TypeSafe AIDOCS

Documentation

Introduction, primitives, patterns, cookbooks, HTTP API, and SDK references.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
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TypeSafe AIDOCS

Introduction

Official TypeSafe reference: Introduction.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
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TypeSafe AIDOCS

Patterns

Speculative fan-out, confidence-gated routing, composite scoring, and intent routing.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
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TypeSafe AIDOCS

Smart home demo

Official interactive demo of speculative fan-out: many questions in one call, code keeps the relevant answers.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Intent routing

Official TypeSafe reference: Intent routing.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

API reference

Official TypeSafe reference: API reference.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Pre-parsed value extraction

Official TypeSafe reference: Pre-parsed value extraction.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Date extraction

Official TypeSafe reference: Date extraction.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Hierarchical classification

Official TypeSafe reference: Hierarchical classification.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

JavaScript SDK

Official TypeSafe reference: JavaScript SDK.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

TypeSafe Python SDK

Official TypeSafe reference: TypeSafe Python SDK.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

API reference

Official TypeSafe reference: API reference.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Self-consistency: nouls

Official TypeSafe reference: Self-consistency: nouls.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Structure recovery

Official TypeSafe reference: Structure recovery.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Score

Official TypeSafe reference: Score.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Knowledge graph entity alignment

Official TypeSafe reference: Knowledge graph entity alignment.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Confidence-gated routing

Official TypeSafe reference: Confidence-gated routing.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

SDE cascade

Official TypeSafe reference: SDE cascade.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish
OFFICIAL
TypeSafe AIDOCS

Self-consistency: choices

Official TypeSafe reference: Self-consistency: choices.

STATE → QUESTIONS → DECISIONSconst answer = await client.systemOne({
  state, questions
});
// intelligence, in your code.
Start hereEnglish

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