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The first general-purpose System One agent for Jev
- Forks
- 2
- Last pushed
- Updated Sep 2026
Repo stats from the GitHub API, cached Oct 2026.
CommunityJev Demos & Experiments
Jot
General-purpose System One agent where Jev chooses tools and arguments while Jot executes them and loops until it can reply.
- Stars
- 20
- Language
- TypeScript
- Published by
- Community
- Author
- runta-dev
- Last verified
- Oct 2026
About this project
Jev picks the next move. Jot runs the loop. Quick start · The loop · Packages. Jot is the first general-purpose System One agent for Jev. Jev chooses tools and arguments. Jot runs the loop: execute, put the real results back into context, ask Jev again until it can reply. You see every tool call. Credentials stay on the server. Chats stay in this browser. The calculator does the math. Jev only decides the calls. Needs Node.js, a TypeSafe API key, and Apple Silicon with uv for local drafts.
Quoted from the project's README. Read the full README.
- Languages
- TypeScript
Highlights
- Provider-independent loop that executes calls, returns real results to context, and shows every tool call in the UI.
- Chat UI with tool-call trace plus separate agent, Jev core, and server packages that keep React out of the loop.
- Loopback-only web setup with draft serve and dev terminals, using server-held credentials instead of browser keys.
Watch out
Needs Node, a TypeSafe key, and Apple Silicon with uv for local drafts; independent project with no TypeSafe affiliation. Copy reviewed against the repository README on 2026-10-04, not from running it.
Questions about this entry
Short answers drawn from the linked project or page.
The calculator and other tools do the work while Jev only picks calls. The example adds then multiplies through two calculate calls returning 13 then 26 before replying.
Jot runs the full execute-then-ask-again loop until Jev can reply, putting real tool results back into context each turn. The loop package stays independent of React and Jev while the server wires them.
Chats stay in the browser and every tool call is visible, while credentials stay on the server. Setup copies .env.example to .env for TYPESAFE_API_KEY and serves the UI on loopback only.
Chat UI and trace, provider-independent loop, TypeSafe client and Jev text, plus HTTP, adapter, and tools on the server. UI talks to agent events without the loop importing React, and build plus tests run via npm.
It needs Node.js and a TypeSafe API key. Run npm install, copy .env.example to .env and set TYPESAFE_API_KEY, then npm run draft:serve in one terminal and npm run dev in another, and open localhost:3000. The web app binds to loopback only, and local drafts also need Apple Silicon with uv.
The shipped example is a calculator: Add 6 and 7, then multiply by 2 becomes calculate with left 6, operator add, right 7 returning 13, then calculate with left 13, operator multiply, right 2 returning 26. The calculator does the math and Jev only decides the calls, with every call shown in the UI trace.
No, Jot is independent and not affiliated with TypeSafe; Jev is the model name. It separates a provider-independent loop package from the Jev client and the chat UI, with the server wiring them together, and credits pi, Errand, FrequencyWords, and jsRealB alongside the TypeSafe client.
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