All builds

🔮 He construido una predicción de clic en tiempo real sobre el DOM usando JEV que parece una bola de cristal. Funciona con jev-latest para predecir el siguiente elemento clicable y la intención del usuario en 345 ms por consulta, resaltando los candidatos en pantalla. Es extremadamente barato de usar y ayuda a anticipar la intención del usuario con un 83% de acierto en las pruebas. Usos que se me

One of the craziest use cases I’ve found for Jev: verifiers. I am so excited about this that I at least wanted to share the high-level idea. I used Jev to build a custom verifier for the /goal feature in my agent harness. It checks whether the goal is actually complete after every turn, making continuous verification cheap enough to scale. This means I can run more of these verifiers (previously h

A local web app for trying [TypeSafe AI](https://t.co/0815ne6QSD) decisions. Build a request with one shared state and several independent questions, run it with your own API key, and inspect the typed answers. The app also includes an arcade where Jev pilots a space shooter from a text radar feed. GH: https://t.co/CsIGhnNnR7

Jevで遊んでたら一晩でここまで来た。 ・話した言葉 → Jevが144種類から「形」を選ぶ ・雰囲気から「質感」も選ぶ（悲しい→雨、興奮→炎、説明→タイル） ・確率が割れたら粒子も割合どおりに分裂 LLMだと遅くて無理なやつが、0.3秒で返ってくるから成立してる。 https://t.co/WPF0eU3Lbc #Jev #TypeSafe #ClaudeCode

I gave four Jev-style decision models the controls to Doom: Jev, Laya, finetuned ModernCE and Qwen3.5. A deterministic Python adapter turns ViZDoom's visible-object labels + HUD into text. Each model picks turn, move or fire. No extra Doom-specific training. Same starting seed, separately recorded games. Each model's actions change its view. The video shows action probabilities, kills and survival

X Jev Classifier v3, now it can analyze your post using Jev real time, with MEME or NORMIE version included no BS video without source, repo in comments 👇 https://t.co/ZVLvAoEQsw

Movie night for Jev. Exploring new possibilities. I fed it dialogue from The Dark Knight and turned its tension scores into this chart. https://t.co/OgP2ebVZAm

🎥 JEV-assisted anesthesia monitoring, in action. A synthetic teaching prototype for ECG, pleth, EtCO₂, airway pressure, BP and SpO₂—with independent alarms and human-triggered Codex review. Code: https://t.co/StbBpZUm5Q #Anesthesia #MedAI #HealthTech https://t.co/5kSEry1L73

Jev にアクションゲームをプレイしてもらった TypeSafe Agent Skill x Astra を使用 プロンプト: Jevを使って、このゲームのプレイヤーをリアルタイムに操作し、安定してゴールできる自動プレイ機能を実装して。Jevの状態表示UIを画面下部に配置して。変更後の敵配置で実際に複数回プレイして、クリアできるまで調整して。

I JUST BUILT A JEV-POWERED X VIRAL POST ANALYZER. The results are almost ridiculous: 100,000 viral X posts analyzed. 20.4 seconds. $0.67 total cost. For comparison, Claude Opus 5 analyzed the same corpus under the same time limit. It processed just 214 posts and spent $0.98. That makes Jev approximately: 680× CHEAPER PER POST. A complete Opus run would have cost around $458. Jev finished the entir

Jev can’t code, it can’t even write words. This is what I built with it yesterday: https://t.co/rHypfPR3Kv

I taught SQL to ask questions using jev: SELECT * FROM tickets WHERE jev_bool(body, 'Is this customer angry?') No embeddings. No keyword list. No LLM writing SQL. jevsql: natural-language predicates, a typed control plane that never lets an LLM touch your data... @typesafeai https://t.co/JtqOsiYoIl

made a color palette generator using jev, because why not? given the input, jev returns probabilities over ten hue families, scores for warmth / light / energy, and a font pick. code maps that onto oklch and paints the page. https://t.co/lAe0TlYKdz

Seeing how many people are using Jev to control browsers I wanted to try too. Wrote the wrapper for 'dev-browser' and called it 'jev-browser'. And then tried to put it to a test: "Find the best pricing model for WP Multitool for someone who runs 3 sites, spends 3h/yr on each, and has $50/hr rate and will run them for 2 years." I saw that it did the right steps until the last one. Was adding the Lite version to the cart. That's how I discovered that while my Pricing page LOOKS good it's structurally awful and definitely nor readable for BOTS or SCREEN READERS. Learned something = PR

I made an experimental model router for @pidotdev using Jev as the decision maker. It's not a generic "pick a cheaper model" router. It isolates work into logical threads and prices cache reads/writes, cold context, expected output + the cost of switching back. @CompleteSkeptic @typesafeai This wouldn't of been possible without Jev, it's an amazing primitive to make software with 💪🏻

Every company writes copy rules. Nobody enforces them after launch week. So I made the reviewer that never gets tired. It reads your marketing site on every PR and names each sentence that makes a claim with no evidence beside it. It's using Jev from @typesafeai It doesn't know your facts. It knows what a claim without proof looks like. https://t.co/bHrzAWVicC @MParakhin don't hate me

built using jev @typesafeai https://t.co/CaKowqwRqW

Proof of concept using Jev by @typesafeai to analyze image metadata and estimate how likely an image is to be AI-generated. Built with @laravel, @inertiajs, and @vuejs. Hosted on Laravel Cloud. Thinking of using it to screen photo competition entries. https://t.co/HskTF6u3to https://t.co/3qfC2SC7BB

Using Jev from @typesafeai to improve matching performance, accuracy and cost in our automated @blackbaud RE NXT CRM integration. https://t.co/TVdfZOa3wI

Doc-OCR router using Jev @typesafeai A Jev-powered router that looks at a PDF page by page, decides which pages actually need OCR, extracts the rest locally. Result: save cost on # OCR pages + speed https://t.co/ZjXqHSjSGh

have not seen anyone actually using Jev for robotics outside of a simulation, so here is Jev running with no policy, zero-shot controlling the robotic arm. @typesafeai @CompleteSkeptic https://t.co/a8CUe9PBdo

I started using Jev as a tool call for our users on supercenter. And oh boy are they gonna love this. https://t.co/JXnhrZXogy

i built a website that ranks all 1,025 Pokémon by literally any question you type, using jev it thinks mimikyu is most performative https://t.co/F0qca4H84o

my video on the routing tool blew up on YT! i crossed 10k views in less than 19 hours, i still can't believe it - my most viewed video till date yayee have been consistently doing YT and content in the ai space for last 7 months and finally get to feel this😇 i built this tool yesterday called agent router using jev + herdr, i was awake until midnight doing recording, and publishing the video. today it feels all the efforts are worth it

tenet using Jev is up to 275x cheaper and 104x faster than Claude agents 🤯 Same 2,000-line diff, same rules. tenet: 1.5 s, $0.0036. One Claude Fable 5.1 call: 157 s, $0.99. Your agent fixes its own review findings before you ever see the diff. https://t.co/Rr1BpU53ak

I built a real-time chat where Jev judges every message in before the room sees it. ❌ No keyword lists ✅ Rules are plain English ✅ Unsure? Held for a human Built with Jev (@typesafeai) + @convex + @vercel Try to break it 👇 https://t.co/P5HYDS6aJX https://t.co/gGWn6XmPaA

Built jevscan - a Chrome extension to detect malicious addresses and transactions on @etherscan in real-time using Jev from @typesafeai. https://t.co/gGgITyJgjT

Created a one-off Chrome extension to remove low quality posts (filtered using Jev) from Twitter, and posts with videos. Feed has become so much better.

Spent a day building tenet, a review gate for code that agents write. It judges each commit, commit message and PR against rules written in plain language, using Jev by @typesafeai. The rules come from @poteto's unslop skill, @hvpandya's stop-slop, @dillon_mulroy's anti-slop and @mattpocockuk's new /pr skill. It also generates rules from your AGENTS.md or CLAUDE.md, and you can write your own rules and presets. Here an agent trips four of them, gets blocked in 1.07 s for $0.0003, and fixes its own findings.

My first real experiment with Jev: project scorer. It takes the specs, source code, and graph (Graphify output) from a codebase, then analyzes them using Jev, Lizard, and Networkx to create project "quality metrics" based on a configurable rubric. https://t.co/lCryvd749u

i made a smart calculator notebook using jev it can calculate ANYTHING!! 😅 https://t.co/0kxyblZVjN

Controlling Figma with voice using Jev from @typesafeai Total cost from first line of code to recording this video: $0.01 🤯 https://t.co/HTGcrBYpTb

I made a Telegram plugin using Jev that warns if you're about to message an ex after a long time of not speaking. https://t.co/eH328cRCky

Using Jev to detect and classify a statement against 50 logical fallacies only takes a few hundred milliseconds and costs $0.000128 per 3k input token request. The response times make the UX feel instant! https://t.co/pwh2b7crGV

judge jev is the law. score two browser agents w/ different models on task completion, using jev to judge which was more efficient at the job. scored on correctness, time, actions, and cost. https://t.co/8M7JBou6O1

Guys I made an extension for LinkedIn using Jev from @typesafeai to remove anything it classified as ai-slop and this is what it left me - did it in under 200ms btw and only cost me a fraction of a penny. https://t.co/0falPlXy0N

I've been developing https://t.co/Wiou7lLysx to keep our minds running using jev https://t.co/i8IemSaIJe

I got up to 50% less context usage on Claude Code and Codex using Jev from @typesafeai a proxy asks Jev which parts of the history are still needed and drops the rest before the request goes out. 8/8 exact answers on the real APIs, numbers is in the last tweet bellow 🔥🔥🔥 https://t.co/WnxBl3I380

introducing JevForm, a form that dynamically branches and chooses what to ask next usinng @typesafeai’s Jev in my life i’ve made hundreds of forms with crazy if/then logic. Jev solves it. built with @vercel json-render (by @ctatedev), so theoretically it can support any generative form UI, and @DavidKPiano’s xstate for the actual state Play with it here: https://t.co/0TwQD3wEH8

today i built talkr, a speech analyzer using @typesafeai > talkr gives you a topic > you talk about it for 30s > jev analyzes your speech: pauses, filler words, repetitions, confidence, clarity > you get a score and feedback to improve can’t wait to 10x my speaking skills https://t.co/ENybzQkIW8