What is justintout/systemone?

An unofficial Go client for the TypeSafe System One API: you send one state and a set of questions, and you get back one answer per question, each bound to the Go type you declared the question with.

How do typed questions work in this Go client?

A question is a value: you declare it once with the Go type its answer uses, such as a Team string type for the option labels, then read the answer back through the same handle.

How do I install the Go module?

Run go get github.com/justintout/systemone. The module is MIT-licensed, was created on 2026-09-23 and was last pushed on 2026-10-15, according to the digest metadata.

Is this an official TypeSafe SDK?

No. The README states it is an unofficial, community-maintained client that is not built, endorsed or supported by TypeSafe, and points to the official Python and JavaScript SDKs at docs.typesafe.ai.

What does the captured usage example show?

It declares a NewChoice question, 'Which team should handle this message?', with Billing and Technical options built from a Team string type; the captured snippet cuts off before the rest of the example.

What does the client return for each question?

One answer per question, each bound to the Go type you declared the question with, so option sets and score levels are checked by the compiler rather than compared against string literals.

What is not covered in the captured README?

The excerpt ends mid-code inside the first usage example, so score and noul question types, authentication, retries and error handling are not documented in the digest.

Jev directory

CommunityJev Repos & SDKs

systemone (Go client)

An unofficial, community-maintained Go client for the TypeSafe System One API: send one state and a set of typed questions, and get one answer per question, each bound to the Go type you declared the question with.

See highlights Open github.com

Stars: 0
Language: Go
License: MIT
Reading time: 2 min
Published by: Community
Author: justintout
Last verified: Oct 2026

justintout/systemone

User repository on GitHub

View on GitHub

An unofficial Go module for interacting with Jev and other System One models

Forks: 0
Last pushed: Updated Oct 2026

Repo stats from the GitHub API, cached Oct 2026.

Tagscommunity github go sdk

Works forJev for Classification Jev for Routing

Used inJev for Software & DevTools

Languages: Go
Platforms: API
Capabilities: Open source

Highlights

Each question is declared once with its answer type, so options and score levels are checked by the Go compiler instead of string comparisons.
Sends one state plus a set of questions and returns one answer per question through the same typed handle.
The README is explicit that it is an unofficial client, not built, endorsed or supported by TypeSafe.
The README example asks 'Which team should handle this message?' with billing and technical options; the excerpt cuts off mid-example.
Install with go get; MIT license, 0 stars, created 2026-09-23 and last pushed 2026-10-15.

Quickstart

bash

go get github.com/justintout/systemone

Watch out

README reviewed 2026-10-17; the captured excerpt stops in the middle of the first NewChoice code block, so score and noul questions, authentication and error handling are not visible, and the module has 0 stars.

Questions about this entry

Short answers drawn from the linked project or page.

From the Jev guides

Original write-ups on what this entry is for.

The Open Reimplementations: Local Models That Speak System One

Sep 22, 2026

Closed weights have not stopped the ecosystem from rebuilding the shape in the open. API-compatible servers, retrained heads on small models, and inference-time tricks that skip generation entirely.

Jev Repos & SDKs#open-models#research#local

Read article

From the Jev AI model community

Posts from builders shipping with Jev right now.

Follow @typesafeai