03
Choice, Score, or Noul — how to pick
Choice selects from a closed set; Score rates ordered levels; Noul returns P(yes). Mix them in one call; each question runs in parallel against the same state.
TAG
quick-start
Browse every matching Quick Start, Learn, Template, and Troubleshoot entry collected under this tag.
Quick Start
4 matching entries
02
Jev, chat models, and code — who owns what
Code owns control flow and side effects; Jev owns narrow semantic judgments; LLMs write prose when you need text. Prefer workflows + gates over open agent loops.
04
Pick a small first task
Shrink “AI handles support” to a reviewable label on desensitized mail. Define input, options, success checks, and what you refuse to automate.
01
What is Jev?
Jev is TypeSafe’s System One decision model: send state + typed questions, get structured answers your code can branch on—illustrated with a support email, not a chat.