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Jev directory
CommunityJev Repos & SDKs
Jev Playground (MoonBit)
A MoonBit and TypeScript playground for Jev: an API client for noul, choice, and score questions, a single-question CLI, Jev-vs-Jev gomoku with real-time GIF replay, and experiments like an ESLint plugin whose verdicts come from Jev.
- Stars
- 73
- Language
- TypeScript
- Reading time
- 2 min
- Published by
- Community
- Author
- mizchi
- Last verified
- Oct 2026
- Languages
- TypeScriptJavaScript
- Platforms
- CLI
- Capabilities
- Open sourceRequires API key
Highlights
- lib/ is the Jev API client (GET /v1/models, POST /v1/systemone) with typed JSON for noul, choice, and score; cmd/jev is a single-question CLI.
- cmd/gomoku plays Jev vs Jev with candidate moves and hints like WINS/BLOCK; cmd/gomoku_gif replays logs as real-time GIFs (sample 362x362, 26 frames, ~47 KB).
- experiments/eslint-plugin-jev has Jev score functions per file in batches and supports ad-hoc rules written as one selector plus one sentence.
- hooks/ is a Claude Code PreToolUse hook that gates Bash commands, and cmd/shellrisk judges shell command risk as an agent permission gate.
- Needs the MoonBit toolchain (moon 0.1.20260915 or newer) and an early-access TypeSafe API key; the MOBA experiments moved to mizchi/jev-playground-moba.
Quickstart
bash
export TYPESAFEAI_API_KEY=your_key_here
moon update
moon run --target native cmd/jev -- --models
moon run --target native cmd/gomoku -- --board 9 --games 2 --verboseWatch out
README reviewed 2026-10-15; the digest metadata shows no license, so reuse terms are unclear. Every experiment that calls the API is billable, the MOBA work now lives in mizchi/jev-playground-moba, and the docs publish raw numbers with reproduction commands rather than independent reviews.
Questions about this entry
Short answers drawn from the linked project or page.
A playground for driving TypeSafe's Jev from MoonBit and TypeScript: an API client for noul, choice, and score questions, a single-question CLI, Jev-vs-Jev gomoku, a GIF replayer, and measured experiments documented under docs/.
Each move sends the board as state and neighbouring cells as choice criteria with hints such as WINS, BLOCK, and line length; a built-in fallback of win, block, then center runs only on API failure or an illegal move, and fallback moves are counted in the stats.
A small language where conditions are Jev decisions, implemented in MoonBit with a JavaScript version that runs the same .jev files and tests that both implementations agree; jevdsl wraps decisions as values you can match on.
An ESLint plugin judged by Jev, a task runner filter that scores what to run from a just dependency graph plus diff, a speculative browser-action driver with offline checks, a Claude Code PreToolUse hook gating Bash, and measured reports in docs/.
The MoonBit toolchain at moon 0.1.20260915 or newer and a TypeSafe API key. Export TYPESAFEAI_API_KEY, run moon update for dependencies, then commands like moon run --target native cmd/jev -- --models to list models.
Only the API calls: each judgment is a billable POST /v1/systemone, and positions are re-sent each move, so long games add up. The docs publish raw numbers and reproduction commands for the measured reports so you can estimate spend first.
docs/ holds when-to-use, fit, tuning, case-studies, findings per experiment, and a summary, plus notes on API behavior, a shell-risk gate study, an eslint-oracle experiment, and a task picker, with a TODO file explaining each open item.
Other listings of this project
Forks and copies of this project in the directory. This entry is the canonical one.
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