Nine open-source Jev projects worth copying
A roundup of nine open-source builds using Jev for decisions, from smart-home queries and filter-list-free ad blocking to a git commit gate, Pong and a Hyperliquid trading bot.
Jev keeps showing up in more builds every week. If you already have Jev API access and have no idea what to build first, steal from this list: 1. HA-Jev Ask your house questions. Home Assistant sends Jev things like "is anyone home?" and gets back a probability, a choice or a score as an entity. https://github.com/AboveColin/HA-Jev 2. typesafe-adblock An adblocker with no filter lists. Jev looks at each element on the page, asks "is this an ad?", and anything over the threshold gets removed. https://github.com/realZachi/typesafe-adblock 3. jev-git A pre-commit and pre-push gate that screens your diff for secrets and malicious code in about 80ms, right inside git commit. https://github.com/AkashPriyadarshii/jev-git 4. Jev Pong Pong where Jev moves the paddle. About 4.4 decisions per second, against 0.28-0.40 for chat models with structured output. https://github.com/ably-labs/jev-pong 5. jev-trade Reads Hyperliquid every tick across five sleeves (BTC, ETH, SOL, DOGE, BNB). Jev picks long or short, then open, close or hold. https://github.com/aowang-ai/jev-trade 6. typesafe-jev A CV screener. A small fixed set of typed questions per candidate, plain arithmetic for the ranking, instant rescore when the hiring criteria change. https://github.com/gtaras7/typesafe-jev 7. fastbrowse A browser agent that skips screenshots. Jev picks each action from the controls on the page, an LLM plans, code owns safety and secrets. https://github.com/agent-labs-dev/fastbrowse 8. Abide Checks every code edit against your project rules. Around 300ms and a few thousandths of a cent per check. https://github.com/coldteadotai/abide 9. jev-spam-eval Zero-shot spam filter, no training data. 19,528 emails, 98.3% accuracy, about $1.12 for the whole run. https://github.com/bitnovus/jev-spam-eval 10. NanoJev A 0.6B decision model in the same shape as Jev. Solved ViZDoom Basic 128/128, where the original Jev got 56/128. https://github.com/TianyuCodings/NanoJev Copy these Jev blueprints, then read the full Jev setup below ↓ ↓
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