10 open-source Jev projects you can copy directly
From a Browser Use decision layer to model routing, decision caching, guardrails and software factories, it lists 10 open-source repos that use Jev for decisions and what each does.
Jev is already changing the way people build. If you already have access to the Jev API but aren’t sure how to start experimenting with it, here's top 10 repos you can copy: 1. grok-bot-jev Wires a Jev decision layer into Grok Bot for cheap, gated tool usage, with example skill templates. https://github.com/onmyway133/awesome-jev 2. jev-ultrafast Browser Use's agent with the next-action decision moved to Jev. Around 2.9k stars, the most visible project in the ecosystem. https://github.com/browser-use/jev-ultrafast 3. jev-router LiteLLM-based router where a Jev decision picks which model serves each request. https://github.com/prismhq/jev-router 4. jevcache A decision cache that memoizes judgments so repeated questions cost nothing. 73 stars. https://github.com/hyperspaceai/jevcache 5. typesafe-computer-use macOS computer use, one typed decision per step, roughly $0.0002 per step. https://github.com/topics/typesafe-ai 6. pi-warden Guardrail layer for Pi agents: checks project rules, scope creep, repeated failures and false completion claims. https://github.com/onmyway133/awesome-jev 7. foreman Software-factory layer above Codex workers where Jev independently judges whether an implementation is complete or needs a human. https://github.com/onmyway133/awesome-jev 8. sift Chrome extension that labels every post in an X timeline: substance, humour, chit-chat, promo, junk or AI-written. https://github.com/topics/jev-ai 9. jev-layer Portable System-1 decision layer for agent harnesses, with host-owned routing, receipts, replay and fail-open integrations. https://github.com/topics/typesafe-ai 10. jev-cookbook Tested recipes on OpenRouter: support triage, database indexing, tagging, dedupe, PII detection, re-ranking and a browser agent. 36 stars. https://github.com/nexibeo/jev-cookbook Save these complete Jev blueprints - then read the full article below ↓ ↓
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