What it is
An official JavaScript and TypeScript client for the TypeSafe AI API, aimed at developers who want to call the System One model from Node.js 20 or newer with inferred answer types.
How it uses Jev
The client's systemOne method takes a state and typed questions, such as choice for a ticket category, and returns answers whose types are inferred from the questions. The README shows reading response.answers.category.choice, but does not describe further decisions or how results are used beyond that.
Primitives:choice
Technique worth stealing
Infer answer types from the typed questions passed to the client.
Try it
npm install @typesafe-ai/sdk, set TYPESAFE_API_KEY, then call client.systemOne.
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricno0.22
- Shows a System One patternno0.20
- Handles uncertaintyno0.03
- Measuredno0.04
- Runnableyes0.98
- Worth recommendingno0.07
- Model replicano0.04
- Problem scopescore on a 0–2 scale1.24
- About Jevyes0.85
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.