THE JEV HANDBOOK / EDITION 1.0
Hello, Jev.
From your first call to three complete workflows. Read online or keep a complete copy.
English: 59 pages · Chinese: 51 pages · Free in full
Download the example codeJev.
Teach your code to decide.
The complete reading path
From understanding to buildingHow to use Hello, Jev.
Learn Jev through a small local workflow, a Python API integration, and three complete cases, with a clear distinction between offline fixtures and live model evidence.
What is Jev, and where does it fit?
Understand Jev through a support ticket: state, typed questions, structured answers, and application policy for classification, scoring, checks, and routing.
Quickstart: from a local demo to a live decision
Run the offline Jev examples, ask your first question in the TypeSafe Playground, and send a state/questions request with curl.
Connect Jev to a Python project
Call Jev with Python's standard library, validate answers, preserve live responses, and explore the optional SDK and official TypeSafe coding-agent skill.
Write useful Choice, Score, and Noul questions
Design inspectable Jev questions with distinct categories, observable score levels, evidence boundaries, fallback options, and composition in code.
Case study: triage a small SaaS support queue
Build a runnable batch workflow with synthetic tickets, separate decision dimensions, local review rules, and inspectable output files.
Case study: check a Markdown draft before publication
Build an editorial checklist with observable criteria, per-item decisions, versioned rules, and readable reports generated by local templates.
Case study: route an agent request to a checked tool
Choose a candidate handler with Jev, then validate parameters and authorization in code with local FAQ and order tools.
Can You Trust the Result? Confidence and Evaluation
Evaluate Jev with held-out examples, error analysis, review rates and model versions. Separate probability, confidence, measured accuracy and offline fixtures.
Jev Troubleshooting: From Error to Fix
Debug Jev integrations layer by layer: Python setup, credentials, request validation, rate limits, responses and application policy. Includes offline-mode limits.
Jev Pricing: From One Request to a Workflow
Estimate Jev API costs from input tokens, request counts and retries. Separate direct-provider prices, usage records, offline fixtures and human review costs.
Cheat Sheet, Downloads and Edition Notes
Commands, paired terminology, official sources and evidence notes for the three Hello, Jev. examples. Download the code and reproduce each workflow.
About this book
Independently authored by CoolJev, not an official TypeSafe publication. API sources checked on September 20, 2026. Offline examples verify application behavior, not model accuracy.
Read the sources and edition notes