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Awesome JEV

A curated list of TypeSafe Jev / System One ecosystem projects — official SDKs, agent skills, browser & computer-use demos, MCP connectors, routers, and community awesome-lists — plus high-signal X posts and YouTube explainers. Searchable navigation site mirrors this list.

Site: awesomejev.cc · Data: data/items.json · Posts: data/x.json

Docs: Architecture · Data model · Collector · Contributing

Contents

Official SDKs & skills

  • typesafe-sdk-js - Official TypeScript/JavaScript SDK for the TypeSafe API (System One / Jev). TypeScript
  • typesafe-sdk-python - Official Python library for the TypeSafe API (System One / Jev). Python
  • system-one-adapter-python - Drop-in TypeSafeClient replacement backed by LLM APIs — run System One / Jev-style calls against open models. Python
  • skills - Agent skills for building with TypeSafe's System One API.

Awesome lists

  • awesome-jev-by-typesafe - Evidence-backed use cases, patterns, prompts, and starter code for TypeSafe Jev. Python
  • awesome-typesafe - Curated official resources and community projects for TypeSafe, System One models, and Jev. CSS
  • awesome-jev - Curated list of public projects, integrations, and discussions built on Jev — TypeSafe AI's System One model. Python
  • awesome-jev - Curated list of awesome Jev / TypeSafe System One applications, libraries, and resources.
  • awesome-jev - A community directory of projects built on Jev, TypeSafe AI's System One model. HTML
  • awesome-jev-projects - Awesome Jev: source-backed open-source ecosystem radar, plain-language project discovery, and automatic GitHub sync. JavaScript
  • awesome-jev - A curated, source-backed list of projects built with Jev, TypeSafe AI's System One model for typed decisions.

Agents, demos & apps

  • jev-trader - One AI trade decision every Monad block — Jev on Kuru MON-USDC. TypeScript
  • typesafe-mario - A TypeSafe/Jev agent that plays Super Mario Bros. from structured emulator state. Python
  • foreman - Software Factory Foreman based on TypeSafe Jev model. Python
  • jev-drone - Camera-only autonomous drone in MuJoCo with a small judgment model (TypeSafe Jev) in the loop at 2.5Hz. Python
  • jevmeter - Put a live Jev (TypeSafe) meter on any video: every sentence scored, rendered as a 16:9 edit. Python
  • typesafe-snake - Snake auto-played by TypeSafe's Jev model: one System One choice per tick, legal moves and facts generated in code. TypeScript
  • killmyidea - Describe your startup idea. Jev decides: kill it, fix it or ship it. TypeScript
  • tsai-sc - TypeSafe Jev controls original StarCraft shareware through keyboard and mouse with recorded action probabilities. Python
  • jev-me - jev-me is grill-me with jev. Python
  • typesafe-ai-playground - Community TypeSafe AI playground: 110 use cases, games, dilemmas and model challenges, with editable prompts, A/B comparisons and a mobile-friendly UI. TypeScript
  • ai-elo-ranker - High-speed recursive AI Elo tournament engine powered by Jev and Swiss matchmaking. Python
  • OneVOneJev - 1v1 Jev quickscope arena — Three.js + TypeSafe System One. TypeScript
  • jev-chat - A chatbot from typed Jev decisions: hierarchical speculative decoding over System One probabilities. Python
  • jevgpt - A chatbot built on a model that cannot generate text (TypeSafe AI's Jev, driven autoregressively). TypeScript
  • should-ai-kill-us-all - We ask Jev, TypeSafe AI's System One model, whether AI should kill us all. Every ten minutes. Using the actual headlines. JavaScript
  • trade-jev - Backtest Jev (TypeSafe) as a BUY/SELL/HOLD trader on NQ L10 order-book data. Python
  • jev_stock - An experimental JEV-powered framework for forecasting short-term stock price direction from structured market data. Python
  • rubikjev - Challenge the Jev's intelligence in Rubik Cube puzzles. TypeScript
  • pydantic-jev-examples - Pydantic AI capabilities made stronger with Jev: small runnable demos, one file each. Python
  • typesafe-arena - A playground for TypeSafeAI's Jev Model. Rust
  • RISC-jeV - I tortured Jev into being a RISC-V CPU. Python
  • jev-little-airways - A show-and-tell capability study for Jev, TypeSafe's System One decision model. HTML
  • jev-playground - A small Next.js app for experimenting with TypeSafe AI's Jev model (System One). TypeScript
  • typesafe-ai-playground - A playground for experiments around Jev, TypeSafe's System One model. Rust
  • got-jev - Jev (TypeSafe AI) PoC through Game of Thrones. TypeScript
  • jev-synergy-screening - Jev (TypeSafe System One) × ASReview SYNERGY abstract screening demo — Choice/Noul vs gold labels. Python
  • harden-jev-decides - JEV picks which stream idea becomes the live MVP. TypeSafe System One decision board. TypeScript
  • last-exit - A cyberpunk border encounter powered by TypeSafe Jev. Bluff the guard. Inspect the receipts. JavaScript
  • jev-connector - TypeSafe / Jev community project: adhamelhayek-lab/jev-connector. JavaScript
  • Typesafe_chess_eval - An evaluation of typesafe AI chess. As it turns out, the AI isn't doing really well even though chess is not a particularly open-ended game. Still, it's only a prototype and this probably wasn't optimzied for games. Python
  • jev-antigravity-decider - TypeSafe / Jev community project: altregubov/jev-antigravity-decider. Python
  • jev-royal - TypeSafe / Jev community project: Amrit-Nigam/jev-royal. TypeScript
  • human-compiler - A compiler for human language. Paste text, get diagnostics. Measured by TypeSafe Jev. TypeScript
  • river-run-typesafe - River shooter game in Python, inspired by Atari's River Raid, played by a TypeSafe AI pilot. Python
  • transcript-scorecard - ACME live support-call scoring demo with TypeSafe AI, Effect, SQLite, React, Vite, and Turborepo. TypeScript
  • jev-demos - Demos to test the effectiveness of TypeSafe's "Jev" System One Model. Dart
  • river-oaks - NPCs of River Oaks Houston, Texas using Jev to power NPCs.
  • jev-ad-preflight - Typesafe/Jev public X demo.
  • jev-should-i-apply - Typesafe/Jev public X demo.
  • jev-user-jury - Typesafe/Jev public X demo.
  • extremely-specific-council - Twelve members. Zero qualifications. A playful TypeSafe AI council with animated votes, inspectable decisions, and shareable verdicts. TypeScript
  • emoji-jev - Emoji autocomplete at the speed of typing. TypeSafe AI Jev on a Whop-hosted TanStack Start app. TypeScript
  • jev-as-a-judge - Using Jev as an evaluator. Python
  • JevSysUno - TypeSafe / Jev community project: Dujaydis/JevSysUno.
  • typesafe-minecraft-demo - A Minecraft Java player controlled by TypeSafe AI, with live decisions, Canadian flag building, and a side-by-side dashboard. JavaScript
  • jev-report - 发明 RLHF 的人,这次做了个不会说话的模型:Jev 独立研究报告。52 页 PDF + 50 条中文实测复现包 + 143 条可回溯数据表. Python
  • jev - TypeSafe / Jev community project: haibt163/jev. TypeScript
  • Jev-Case - 收集全网优秀 case 的收藏库 | A curated collection of excellent cases from across the web (TypeSafe Jev / System One).
  • jev-snake - An experimental Snake environment where the game engine owns deterministic rules and TypeSafe AI's Jev makes the movement decision from structured state on every tick. Python
  • hundred - 100 AI NPCs live in a tiny town. Jev chooses the next action; the world writes the story. TypeScript
  • jev-t-rex-runner - Chrome dino game played by Typesafe AI Jev model. JavaScript
  • roverlab - A 3D planetary rover sandbox for experimenting with autonomous decisions using TypeSafe AI. TypeScript
  • typesafe-playground - Interactive experiments with TypeSafe Jev, from support routing to 3D driving simulations with real AI decisions and visible sensor inputs. JavaScript
  • jev-freeform - An observable raw-character chat experiment powered entirely by TypeSafe Jev Choice. JavaScript
  • jev-bfs - Wikipedia link races with direct Jev ranking and a live terminal display. Python
  • jev2048 - Let Jev (TypeSafeAI) solve 2048. TypeScript
  • jev-anotacao-sentencas - Jev (TypeSafe) vs. Gemini 3.8 Flash vs. GPT-5.6 Luna na anotação estruturada de sentenças do TJSP: qualidade, tempo e custo. Python
  • jev-tetris - A visual TypeSafe demo where Jev chooses verified Tetris placements. Python
  • typesafe-3d-chess - 3D chess powered by TypeSafe AI (Jev). AI vs AI by default, or play either side. Multiple difficulty levels. TypeScript
  • f1 - JEV Prix: five AI drivers, unknown procedural circuits, Formula-inspired racing, BYOK Jev and saved replays. JavaScript
  • jev-atari-lab - Challenge Atari with Jev: structured decisions, value questions, and replayable experiments. Python
  • naimono-lab - この世にないことばで遊ぶ、家族のためのJev言葉ゲーム. JavaScript
  • cartshield - CartShield — SMB checkout fraud disposition via TypeSafe Jev. TypeScript
  • jevplay - TypeSafe Jev playground — custom Choice/Score/Noul builder with live distributions. TypeScript
  • shade-arena-jev-monitor - Evaluating TypeSafe's Jev as a fast monitor and action gate for agent sabotage in SHADE-Arena, compared with Gemini 2.5 Flash/Pro. Python
  • pdoom-protocol - USER + JEV: P(DOOM) PROTOCOL — co-op platform shooter where TypeSafe Jev plays alongside you. TypeScript
  • ps2-ai-agent - Autonomous PlayStation 2 AI Agent with real-time visual telemetry HUD powered by TypeSafe Jev System One. Python
  • draftpulse - Experimental: live X draft viral scorer powered by TypeSafe Jev. TypeScript
  • jev-plugins - Cursor and Hermes marketplace for the four published JEV Labs routers.
  • cyber-breach-jev - Cyber-Breach: The Jev Protocol - A tactical cyberpunk arena combat game powered by TypeSafe AI Jev System One decision model. JavaScript
  • jev-trader - TypeSafe / Jev community project: renatosousa/jev-trader. Python
  • JevArena - Two Jev agents duel at Snake via Vercel AI Gateway. TypeScript
  • pong-jev - TypeSafe's Jev plays Atari Pong. One typed Choice question per frame, no coordinates sent to the model. TypeScript
  • jev-exploration - Jev (TypeSafe) exploratory thread: claim audit, live demos, and runnable code. Python
  • jev-audio-beeper - Low-latency audio censorship POC using Jev typed decisions and ffmpeg. TypeScript
  • jev-games - Visual Jev lab for multiple games and emulator platforms. Python
  • Search-Function-Test - A test project based on Jev AI, the goal is to build a search function for a blog/article website that has 100s of articles to search from, So the user can actually use the search as chat to question anything and find related answers/articles. JavaScript
  • snake-jev - Snake controlled by parallel Jev assessments, with one API call per game tick. Python
  • Jev4Mellea - Jev adapter to Mellea. Python
  • trading-bot-jev - Crypto trading bot on Binance testnet using TypeSafe (Jev) to judge news. TypeScript
  • jev-askable-arm - Zero-shot English goals on a sim Franka. Jev chains hardcoded primitives. Python
  • terrarium - A sandbox where a TypeSafe System One model presses the controls of a small creature. Code runs the world. JavaScript
  • FinancialPredictionJev - Using Jev to test how well it predicts financial markets(just like most llms as of september 2026, it doesnt do that good). Python
  • typesafe-chess - Chess where both players are TypeSafe's Jev model: every move is a typed Choice decision. JavaScript
  • shady-town - Shady Town: social-deduction party game for the living room TV, moderated by TypeSafe Jev. Ruby
  • jev-pick-and-place-study - A small reproducible MuJoCo pilot comparing Jev, Claude Haiku, and reactive rules for pick-and-place. Python
  • jev-board-lab - Interactive explorer and Jev question workspace for Jev Board datasets. JavaScript
  • jev-playground - Can a System One model steer music? Jev picks the plan (enums only); code renders sheet, audio and MIDI. TypeScript
  • Agent-JEV-Tetris - using the new model JEV to play the game tetris. HTML
  • github-star-organizer-jev - TypeSafe / Jev community project: yutkat/github-star-organizer-jev. Python
  • ground-zero - Decision library to detect and classify AI hallucinations, powered by Jev AI. Python
  • jev-plays-pokemon - Like Claude Plays Pokemon, but with Jev. Python

Browser & computer use

  • jev-ultrafast - Browser Use × Jev Ultrafast — high-speed browser automation powered by TypeSafe Jev. i. am. speed. Python
  • typesafe-computer-use - Computer use for about $0.0002 a step: OCR the screen, classify the next action with TypeSafe, click (macOS). Python
  • unclutter - WXT browser extension: Jev-powered page clutter removal with reusable template rules. TypeScript
  • jev-browser - Browser use using TypeSafe's Jev model. TypeScript
  • typesafe-adblock - 🧹 Fun project: a Chrome extension that asks a tiny AI decision model (TypeSafe Jev) "is this DOM element an ad?" and pops it off the page. BYOK, no backend, not a real ad blocker. JavaScript
  • jev-browser-use - 5–10x faster browser operations: Jev clicks, Codex thinks and verifies. JavaScript
  • jev-browser - Browser automation where an LLM plans and Jev (Typesafe System One) decides. Library, CLI and MCP server. JavaScript
  • heist-one - Observable browser stealth game: Jev makes typed guard judgments while deterministic code owns the world. TypeScript
  • computer_use - macOS computer use driven by Jev (TypeSafe System One) as the decision maker. Go
  • jev-ego - Fast browser agent for ego lite. One TypeSafe request per step; an agent or Jev picks the move. TypeScript
  • barrunto - A Chrome extension that brings TypeSafe's Jev to X.com to analyze posts as you browse. TypeScript
  • almond-fastloop - Almond-fastloop: Almond's browser computer-use rig (Chrome DevTools + TypeSafe Jev), and the Browser Use Olympics benchmark it is measured on. HTML
  • jev-doom-agent - A browser-native Doom agent experiment with structured spatial state, composable AI controls, live decision telemetry, and a Chocolate Doom WebAssembly runtime. TypeScript
  • jev-frontend-qa - Evidence-driven frontend QA built on Jev Ultrafast and Browser Harness, with a synthetic todo demo. Python
  • otto - Open-source native computer use for macOS and Windows: TypeSafe Jev, local OCR, and selective planning. TypeScript
  • tsai-civ2 - TypeSafe Jev plays original Civilization II in a browser, with live action probabilities. Experimental full-game harness. Python
  • jev-browser - One grounded Jev/Playwright core: typed SDK, persistent CLI, and MCP server with native browser operations and deterministic assertions. JavaScript
  • fastbrowse - A fast browser agent: Jev picks each action from what is on the page, an LLM reads and plans, and every claim in an answer cites a quote from the page. Python
  • jev-browser-pilot - A bounded decision layer for browser and desktop automation: a decision-only model picks one next step; the code owns perception, content, actuation and verification. (TypeSafe Jev / System One). Python
  • jev-orb - Siri-style push-to-talk voice orb for autonomous browser control with Jev and Metal Whisper. Makefile
  • JevTest - Bounded exploratory browser testing with Jev, deterministic assertions, and replayable evidence. TypeScript
  • browser-use-olympics - Browser Use Olympics by Almond: one prompt, five events, one clock. Plus fast loop, a ~200-line browser computer-use agent (Chrome DevTools + TypeSafe Jev). HTML
  • jev-play-ping-pong - Jev plays browser table tennis in real time: structured telemetry, typed decisions, ordinary Chrome inputs, and auditable evidence. JavaScript
  • jev-research-eval - Reproducible Jev Ultrafast research-browser eval harness + field note (QC’d cases, suite runner, report generator). Not investment advice. HTML
  • jev-browser - Local browser automation UI that uses TypeSafe Jev to choose bounded page actions and a text model only for field values. Python
  • jev-playwright-mcp - Jev-augmented Playwright MCP proxy — page-state triage, prompt-injection shielding, goal-based snapshot pruning, risky-action gating. Drop-in wrapper around @playwright/mcp for any coding agent. TypeScript
  • jev-browser - Jev-powered browser MCP for LLM agents — ~300ms decisions, no LLM tokens in the loop. Benchmark vs Playwright MCP included. JavaScript
  • swarmrouter - Route tasks to research/code/browser/support/writer agents via TypeSafe Jev. TypeScript
  • sloppy-jevs-extension - Open-source Chrome extension that filters AI-generated prose and ads with Jev. JavaScript
  • jevarena - JevArena — two Jev agents duel in click-only browser games (Browser Use + TypeSafe Jev). TypeScript
  • turbo - Jev-powered semantic browser use. Go
  • sift - Chrome extension that re-ranks Google results with TypeSafe Jev and folds away sales pages and SEO filler. TypeScript
  • decido - Probabilistic decisions for Python. Use Jev or bring your own provider; crawl with Playwright. Python

MCP, routers & adapters

  • skillbox - Self-hosted, versioned skills library for AI agents — MCP, scoped clients, optional Jev recommendations. TypeScript
  • jev-router - Route to the cheapest model in Claude Code for your task using jev-router. JavaScript
  • jev-review - Local-first MCP plugin for continuous software-quality review by AI coding agents, powered by Jev. TypeScript
  • jev-mcp - Proof of concept MCP for TypeSafe's Jev AI model. TypeScript
  • typesafe-mcp - MCP connector giving AI agents direct access to TypeSafe AI's Jev model. Go
  • jev-codex-router - Per-turn model & reasoning routing for Codex, driven by Jev (TypeSafe System One): picks the model, thinking depth and speed mode for every turn. Python
  • Jevbridge - ACP and MCP adapter that bridges TypeSafe Jev with any LLM — computer use and typed decisions alongside Codex, Claude, Grok, and OpenCode. TypeScript
  • jev-mcp - MCP server for TypeSafe Jev: typed classify, score, check, match and screen for any agent, with confidence on every answer. Python
  • pi-jev-router - Automatic model routing for Pi using TypeSafe's Jev through Vercel AI Gateway. JavaScript
  • typesafe-skill-router - TypeSafe (Jev) skill routing for Hermes Agent: names the one skill worth loading, before the model call. Opt-in, stdlib only, ~$0.001 per routed turn. Python
  • jev-agent-skill-router - Typed, confidence-aware agent skill routing with TypeSafe Jev. Python
  • jcm-router - Local proxy that picks the Claude model and effort per message using TypeSafe Jev. Routes subagents, leaves your cached main chat alone. TypeScript
  • jev-shield - Semantic MCP firewall powered by Jev — screens every tool call, tool result, and tool description with calibrated System One verification. 94% block recall, 0 false positives, ~$0.00002/check. JavaScript
  • jev-mcp - MCP server exposing TypeSafe Jev as typed, calibrated judgment tools: classify, score, check, batched ask. Ships as a Claude Code plugin. TypeScript
  • jev-skillful - Per-prompt capability router for coding agents: resolves installed skills, MCP servers, agents and commands against your prompt via TypeSafe Jev, and measures whether the injection actually helps. TypeScript
  • Antigravity-mcp-semantic-search-with-TypeSafeAi - Fast semantic code search & diff sanity auditor for AI coding assistants (Antigravity, Cursor, Claude Code) powered by TypeSafe System One. Python
  • decisionbridge - A Jev-inspired decision interface for existing LLMs. Explicit choices, scores, calibration, and review thresholds. HTML
  • jev-router - Open-source LLM router that uses TypeSafe's Jev to pick a model, on top of LiteLLM. Python
  • jev-mcp - Connect JEV to MCP clients and compare its judgments against general-purpose LLMs using shared datasets and measurable accuracy. JavaScript
  • typesafe-demo-mcp - MCP server exposing TypeSafe System One judgments (noul, choice, score) as agent tools. TypeScript
  • jevwire - Jev decision layer for agents: MCP server, embeddable DecisionModel library, and an escalate-only Claude Code plugin (TypeSafe AI's Jev). TypeScript
  • jev-mcp - MCP server that puts TypeSafe Jev on the coding loop in Cursor, Codex, and any MCP client. TypeScript
  • AskJev-MCP - MCP server for TypeSafe's System One API (Jev): typed choice/noul/score judgments with calibrated probabilities and confidence. JavaScript
  • jev-mobile - Fast structured Android control loops with TypeSafe Jev and Mobile MCP. Python
  • JevTicktRouter - A .NET 10 and React 19 application for fast, structured AI-powered ticket triage using TypeSafe Jev. C#
  • pi-jev-router - Jev model integration for pi coding agent. TypeScript
  • hiep-paseo-plugin - Local Paseo plugin exposing Jev evaluations through MCP. JavaScript
  • mcpmatch - Match user goals to MCP catalog (two-stage) via TypeSafe Jev. TypeScript
  • jev-flash-router - open-sourced jev-flash-router: an MCP server for TypeSafe's new Jev model. AI coding agents waste hundreds of reasoning tokens just deciding which file to edit, which route to pick, or whether a diff breaks tests. Jev evaluates state and outputs calibrated probabilities. Works. TypeScript
  • hermes-jev-router - Experimental Hermes plugin: Jev-assisted model routing plans with budget and capability constraints. API access pending. Python

Libraries & SDKs

  • advocaat - A small, type-safe client for asking AI questions about your data, powered by TypeSafe Jev. TypeScript
  • ruby_llm-typesafe - TypeSafe structured-output provider for RubyLLM 2. Ruby
  • typesafe-ai - Typed TypeSafe AI clients for Rust, with async and blocking backends and observable retries. Rust
  • typesafe-dotnet-sdk - Community .NET SDK for the TypeSafe AI System One API — typed noul, choice, and score questions with structured, confidence-scored answers. Not affiliated with TypeSafe AI. C#
  • typesafe-sdk - Ruby client for typesafe.ai. Ruby
  • super-jev - A small, extensible decision-to-action harness for TypeSafe Jev. TypeScript
  • typesafe-ai-rs - Independent async and blocking Rust SDK for the TypeSafe AI System One API. Rust
  • typesafe-go - unofficial go SDK for typesafe AI, with typed answers, retries, and context support. Go
  • TypeSafeAI.Net - .NET SDK for the TypeSafe AI platform. C#
  • typesafe-sdk-swift - Swift SDK for TypeSafe AI. Swift
  • jevclient - Async Python client for TypeSafe Jev. Typed questions in, probabilities and choices out, no prose to parse. Python
  • typesafeai-go - Go SDK for TypeSafe AI API https://docs.typesafe.ai/api. Go
  • typesafe-sdk-rust - Rust SDK for the TypeSafe AI API. Rust
  • jevgo - Go client for TypeSafe AI's System One API (Jev), with optional Langfuse instrumentation. Go
  • jev-go - Unofficial Go SDK for TypeSafe AI's Jev API. Go
  • typesafe-client - Unofficial typed async Rust client for the TypeSafe System One API. Rust
  • typesafe_sdk - An idiomatic, type-safe Elixir port of the official TypeScript AI SDK (ai / ai-sdk) providing unified LLM integrations, streaming text and structured outputs, tool calling, and agentic workflows. Jev is their current flagship model and is the first System One model. Elixir
  • typesafe-rs - Latency-first Rust SDK for TypeSafe System One. Rust
  • jev - Unofficial Go client for TypeSafe's System One API and its model, Jev. Go
  • typesafe-sdk - PHP & Laravel SDK for TypeSafe AI's JEV Model series. PHP
  • jev-bun1 - TypeSafe の Jev を TypeScript SDK で使ってみる最初の 1 歩. TypeScript
  • typesafe_ai - An Elixir client for TypeSafe AI with typed responses and bounded concurrency. Elixir
  • typesafe.zig - An idiomatic Zig client for the TypeSafe AI API. Zig
  • jev-jp-address - Jev (TypeSafe) 性能評価プロジェクト — 日本郵便 KEN_ALL をマスタに、AI SDK 経由の Jev が住所のあいまい一致にどこまで使えるかを検証. TypeScript
  • tinyjevclient - An integration with jev by typesafe.ai in Rust. Rust
  • typesafe_ai - Typed Elixir client for TypeSafe AI and its Jev System One model, with offline test stubs, concurrent fan-out, and atom-keyed answers. Elixir
  • typesafe-sdk-go - Unofficial Go SDK for the TypeSafe AI System One API — 1:1 parity with the official JS and Python SDKs. Not affiliated with TypeSafe AI. Go
  • typesafe-sdk-php - Unofficial PHP SDK for the TypeSafe AI System One API — 1:1 parity with the official JS and Python SDKs. Not affiliated with TypeSafe AI. PHP
  • typesafe_sdk_ex - Typesafe AI SDK in Elixir using Req. Elixir
  • typesafe-go - Idiomatic Go SDK for the TypeSafe AI API. Go

Tools & integrations

  • jev-review - Staged code-review workflow and local dashboard built with TypeSafe Jev. TypeScript
  • pg-jev - Ask your Postgres tables questions in plain language. A PostgreSQL extension powered by TypeSafe's Jev. Python
  • building-with-jev-skill - A skill for writing and improving programs that call Jev, TypeSafe's System One model.
  • pi-warden - Guardrails for Pi built on pi-typesafe that steer the agent instead of interrupting you: Jev judges irreversible and off-task tool calls, detects stuck loops, checks unverified done claims, flags slop. TypeScript
  • skillranker - Rust CLI powered by Jev from TypeSafe.ai that ranks agent skills for the next step using live session context. Includes Claude Code hooks, structured JSON, abstention, and local feedback. Requires a TypeSafe API key. Rust
  • pi-jev - TypeSafe Jev as a decision layer for the Pi coding agent: a measured tool-call gate plus jev_ask for typed, calibrated answers. TypeScript
  • ask-jev-skill - Skill for Hermes, and other agents, to ask typesafe's jev. Python
  • commit-miner - Classify Git commit diffs and messages with Jev. Bug fixes, security fixes/CWEs, and change types. Rust
  • blink - Codebase search powered by Jev from @typesafe-ai. TypeScript
  • winnow - A calibrated context sieve for Claude Code: every tool result is judged by a System One model before it enters context. Python
  • neo4jev - Typesafe.ai System One Model Jev navigating a Neo4j graph by using a classifier over neighbouring relationships. Jupyter Notebook
  • pi-jev-auto-mode - Jev (TypeSafe System One) backed auto mode for the Pi coding agent: semantically auto-approves bash, write, and edit tool calls and fails closed when a decision cannot be made. TypeScript
  • jev-axi - Agent-ergonomic CLI for TypeSafe's Jev: fast calibrated judgments (pick, rate, check, rank, triage, guard) from the shell. TypeScript
  • HA-Jev - Home Assistant integration for TypeSafe Jev. Ask a question about your house and get a probability, a choice or a score as an entity. Python
  • daggerverse - Collection of useful Dagger modules for TypeSafe AI / System One workflows. Python
  • JevLint - Configurable semantic linting powered by Jev, with file-level NOUL judgments and a magic-strings plugin. TypeScript
  • jevlogs - Open-source Jev log triage for OpenTelemetry. Score the signal before expensive LLM analysis. TypeScript
  • semdecide - Typed semantic decisions for Unix pipelines and CI, powered by TypeSafe AI Jev. Python
  • a0-typesafe-ai - TypeSafe AI Jev judgments for Agent Zero, with typed tools and probability cards. Python
  • typesafe-cli - Ask Jev typed questions from the shell: noul, choice, and score answers as numbers, not prose. TypeScript
  • typesafe-on-neon - Neon Function proxy for the Neon AI Gateway with TypeSafe Jev routing. TypeScript
  • jev-code - Bounded TypeSafe Jev workflows for coding agents. TypeScript
  • typesafe-cli - CLI and agent skill for TypeSafe System One (Jev): typed Choice, Score, and Noul judgments. Python
  • jod - Semantic schemas over TypeSafe's Jev — validate the state locally, then project typed answers. TypeScript
  • pi-jev - Semantic tool routing and typed System One decisions for the Pi coding agent using TypeSafe Jev. TypeScript
  • bicameral - Hybrid coding harness: System 2 writes, System 1 (Jev) runs reflexes. TypeScript
  • typesafe-mod - Claude Code mod that routes decisions to TypeSafe's Jev model: ranks installed skills per prompt, and answers the agent's own this-or-that questions when confident. TypeScript
  • laravel-typesafe-jev - Unofficial Laravel integration for TypeSafe Jev AI with typed responses, async requests, scoped dependency injection, and testing fakes. PHP
  • calibre - Measure when to use Jev and other models on your data, then route accordingly. Python
  • jev-for-engineers - Eight minimal working examples of TypeSafe's Jev (a System One model) applied to mechanical and electrical engineering: CAD/CAE/CAM routing, FEM result triage, DFM screening, BOM alignment, hallucination-proof extraction. Zero dependencies. Python
  • pg_typesafe - Pre-alpha PostgreSQL extension for TypeSafe AI (Jev) categorical classification. C
  • jev-system-one - A polished OpenAI + TypeSafe Jev terminal interface for answers with transparent decision reports. Python
  • jev-judgment - Agent Skill: send closed coding-agent judgments to TypeSafe Jev. Python
  • pi-quiet-ask - TypeSafe Jev as the pi coding agent's quiet decision layer. TypeScript
  • typesafe-migration-guard - Automated database migration safety reviewer powered by TypeSafe AI (Jev System One model). TypeScript
  • diffjury - DiffJury — TypeSafe Jev PR risk router + code review coach. TypeScript
  • jev-system-architect - System-architecture skill for TypeSafe AI Jev/System One — find fuzzy semantic judgment and turn it into small Choice/Score/Noul primitives.
  • jevibe-check - A live tone labeler for Bluesky posts and drafts, using TypeSafe's Jev API. JavaScript
  • every - Ask a yes/no question of every function in a codebase. Ranked answers in seconds, for cents. Grep whose pattern is a question, powered by TypeSafe Jev. Python
  • ailerix - Type-safe model router. Jev (System One) banks each request to a typed catalog route. TypeScript
  • Overwatch - TypeSafe AI Overwatch — System One / Jev related tooling from the official org. Python
  • clarity-judge - Multi-axis writing quality checker powered by TypeSafe AI's Jev model. Separate named checks, each with its own verdict and confidence. TypeScript
  • judging-with-typesafe - Скилл для агентов Letta: суждения по критериям через TypeSafe System One (Jev). Python
  • jev-predict-skill - Predict another skill's next closed decision with TypeSafe Jev — without running that skill. HTML
  • jev-go - Go client for TypeSafe's System One API and its model Jev: typed judgments and calibrated probabilities instead of generated text. Go
  • typesafe-assist - Home Assistant Assist conversation agent powered by TypeSafe's Jev (System One) model. Python
  • jev-cli - CLI for TypeSafe AI's Jev evaluation model — typed questions in, structured JSON answers out. TypeScript
  • psearch - Parallel web search for terminals and agents, with local Chromium and Jev-guided exploration. Python
  • jev-guard - Auto mode for every coding agent, built on Jev: risk-scores every tool call with session context (deny / ask / allow), flags prompt injection in results, checks skills and plugins. Claude Code, Codex, Copilot, Gemini, Cursor, pi, OpenCode, ACP. JavaScript
  • mcts-agent - Discriminative Monte Carlo Tree Search using TypeSafe Jev System One Primitives and Gemini. Python
  • todo-jev - ⚡ Ultra-fast, low-cost intelligent task classifier and 3-tier routing engine powered by TypeSafe Jev (System One). Python
  • toolgate - Agent tool/MCP call gate — allow / ask_human / deny via TypeSafe Jev. TypeScript
  • commentcop - Put your code comments on trial. Powered by Jev. TypeScript
  • ask-jev - Utilizing Jev, the RLCD-type model provided by TypeSafe AI, to independently and cheaply judge agentic coding sessions. PowerShell
  • system-one - Batched single-token choice inference for open language models, compatible with TypeSafe. Python
  • omp-typesafe - TypeSafe AI (Jev) adversarial reviewer and typesafe_ask tool for the omp coding agent. TypeScript
  • btc-jev-signal - Experimental multi-horizon BTC signal generator using TypeSafe Jev probabilities and Binance market data. TypeScript
  • tenet - The review gate for code that agents write: rules in plain language, judged on every commit (TypeSafe Jev community). Go
  • jevegis - Guardrails for LLM apps in one API call. Prompt injection, jailbreaks, leaks, unsafe content. Built on TypeSafe Jev. MIT. TypeScript
  • switchboard - Guardrail + model router for LLM gateways on TypeSafe's Jev (System One model), with an independent accuracy/calibration/latency evaluation. Stdlib Python. Python
  • jev-resume-analyzer - CV diagnostics and job alignment with TypeSafe Jev, React and FastAPI. Python
  • typesafe-ui - shadcn-style reusable components and blocks for using TypeSafe AI. TypeScript
  • jev-triage - Uses typeful jev, zero sync to pull and sync large repositories for issue triage. TypeScript
  • jev-document-classification - JEV Document Classification enables the rapid and cost-effective classification of text-based documents using AI, leveraging TypeSafe's "System One" model. TypeScript
  • s1s - System One Search: navigate and trace code with TypeSafe judgments and repository evidence. TypeScript
  • jev-deferred-crispification - Position paper: the Hidden-Markov and fuzzy primitives missing from TypeSafe AI's Jev and System-One decision models. Two lemmas, one principle (Deferred Crispification), one architecture (BSF-S1). TeX
  • n8n-nodes-typesafe-ai - n8n community node for the TypeSafe AI System One API — typed yes/no, choice and score questions with calibrated probabilities. TypeScript
  • stepwarden - Every tool call your agent makes, checked before it runs. A Claude Code plugin that uses TypeSafe AI's Jev to verify each pending tool call against the session plan, then allows it, asks you, or blocks it. Proof of concept. TypeScript
  • jev-column-race - Jev vs Gemini 3.8 Flash: labelling 1,000 app reviews, 4.1× faster and 7× cheaper. JavaScript
  • typesafe-jev - Screen a folder of CVs with the TypeSafe Jev decision model: typed judgments, an editable policy, free re-scoring. TypeScript
  • jevkeep - Codex plugin that preserves useful conversation excerpts alongside the summary after context compaction. (TypeSafe Jev / System One). TypeScript
  • pkg-gate - Pre-install security gate for npm lifecycle scripts using TypeSafe System One. JavaScript
  • jev-rerank - Use Jev (TypeSafe's System One model) as a calibrated reranker: one call, up to 30 documents, a probability per document. Apache-2.0. Python
  • typesafe-comment - Small Python package that uses typesafe.ai to evaluate code comments on certain heuristics. Python
  • pi-jev - Pi extension suite powered by Jev: selective context compaction and model routing. TypeScript
  • omp-jev-compaction - Verbatim Jev-scored context reduction for omp, over TypeSafe or OpenRouter. TypeScript
  • mimicry - Rewrite AI drafts in your own voice with a bounded TypeSafe feedback loop. Python
  • pi-jev-code - Single-agent Pi coding coprocessor with Jev semantic gates, baseline-to-current diff review, and append-only observability telemetry. TypeScript
  • tiny-jev - TypeSafe / Jev community project: karimatayuta/tiny-jev.
  • jevlens - TypeSafe / Jev community project: knowlet/jevlens. JavaScript
  • kunobi-jev - Rust client for the TypeSafe System One API (Jev). Rust
  • forma-system1-experiment - Experimental design harness: a small decision model (Jev) picks the design in about a second, a traditional LLM (Luna) only writes the words. With and without it. TypeScript
  • pi-typesafe-jev - A pi extension that exposes TypeSafe (Jev, System One) judgments as five pi tools, so a model can make narrow semantic judgments while your code and your users keep control of thresholds, weights, and actions. TypeScript
  • jev-cli - JSON-in, typed-decisions-out CLI for the TypeSafe System One API. TypeScript
  • newsscore - News sentiment scoring for stocks, powered by TypeSafe Jev by default. Python
  • frost - A flexible and configurable CLI model router using TypeSafe Jev. Go
  • citation-verifier - Check whether each cited paper supports the sentence citing it. Claude proves the quote, TypeSafe's Jev scores it, a human decides. JavaScript
  • typesafe - An idiomatic Elixir client for the TypeSafe AI API. Elixir
  • check-risk - A CLI and GitHub Action that assesses code-change risk using deterministic rules and TypeSafe Jev, recommending checks and reviewers before merge. TypeScript
  • jev-dev - 同じ発言を jev と LLM の両方に判定させ、感情の変動値のズレと応答速度を1画面で見比べるデモ(affectus + Vercel AI Gateway). TypeScript
  • harnessjudge - Judge agent steps — ok / retry / escalate / stop via TypeSafe Jev. TypeScript
  • hiresignal - HireSignal — resume first-pass fit+interview via TypeSafe Jev. TypeScript
  • lanebreak - LaneBreak — support ticket priority+routing via TypeSafe Jev. TypeScript
  • pulselane - PulseLane — clinic triage decisions via TypeSafe Jev. TypeScript
  • spendbrake - Agent budget brake — continue / downgrade_model / stop via TypeSafe Jev. TypeScript
  • trustgate - TrustGate — indie media T&S gate via TypeSafe Jev. TypeScript
  • limpet - A Stop hook that stops your coding agent from stopping too early. Plain-language rules, judged by jev. Python
  • beat-jev - A penalty shootout powered by Render Workflows, TypeSafe Jev, and Render Postgres. Python and TypeScript examples. TypeScript
  • casse-brique-typesafe - A Next.js brick breaker whose paddle is controlled in real time by TypeSafe AI's Jev model. Built with Claude Code. TypeScript
  • jev-compaction - Context compaction for Hermes sessions: every tool call scored by TypeSafe Jev; stale calls dropped, kept context stays verbatim. JavaScript
  • pi-fast-jev-compaction - Verbatim context pruning for the pi coding agent, scored by TypeSafe Jev: stale tool calls and results are dropped or truncated, everything kept stays verbatim. TypeScript
  • jev-builder-loop - Grok skill: Jev as a judgment sensor in a builder-agent loop (priors × probabilities → next act). Python
  • typesafeai-review - Using Typesafe.AI to generate diff reviews. Python
  • agent-gate-loop - Reusable GitHub Action: agent fix loop gated by checks, an AI reviewer, and TypeSafe Jev. TypeScript
  • jevscan - TypeSafe / Jev community project: SaremS/jevscan. Go
  • typesafe-triage-guard - Three composable judgment pipelines on TypeSafe's Jev: support-ticket triage, observability alert triage, and a deploy-risk gate. Python
  • scam-shield - Scam text message filter powered by TypeSafe's Jev model. TypeScript
  • omp-jevens-classifier - Jev-powered model-judged permission gate for OMP (TypeSafe System One). TypeScript
  • jev-trace-classifier - Application of TypeSafe Jev (noul judgment primitive) on the collusion.wiki corpus: agent vs human page authorship, head-to-head vs local Qwen3.8-Flash-Next. Python
  • jev-secret-detection - Measures how well TypeSafe's RLCD-Jev model spots real secret credentials in file snippets. Python
  • jevusecases - What people are actually shipping with Jev — real builds, tracked as they ship. TypeScript
  • jev-review - Autonomous Jev pull-request review with typed decisions, calibrated approval gates, and trusted-owner escalation. Python
  • typesafe-oracles - Evaluating TypeSafe's System One primitives (Choice/Score/Noul) — where a typed oracle beats an LLM call. JavaScript
  • pi-typesafe - Pi coding-agent extension built on the TypeSafe AI System One API (Jev). TypeScript
  • thaiexam-jev-charts - Charts: TypeSafe Jev evaluated on Thai standardized exams vs 110 other models. HTML
  • siege - SIEGE: 200 people vs one agent. A typed action gate (TypeSafe System One) that learns from every breach, evaluated by W&B Weave, hardened by a defender loop. Built at CoreWeave Hacks: Agent Loops 2026. TypeScript
  • typesafe-image-diffusion - Diffusion-style pixel art out of a general classifier (TypeSafe Jev): 256 parallel pixel questions + refinement passes. HTML
  • pi-jev-helm - TypeSafe / Jev community project: Z761293629/pi-jev-helm. TypeScript
  • zcode-jev - Typed judgment layer for coding agents — gates from PRD to ship. Jev-ready, provider-agnostic. TypeScript

Research & benchmarks

  • openjev - Can we run something like Jev on a 3090 at home? Open / local System One–style experiments. Python
  • jevlike - Community Jev-like model and tooling experiment inspired by TypeSafe System One. Python
  • typesafe-ai-benchmark - This is a LLM Gateway that mimics typesafe ai structured output. Like an imposter Jev. TypeScript
  • jevmlx - Jev-style parallel constrained decisions for any MLX model on Apple Silicon. Typed, schema-valid JSON in one forward pass. Python
  • jev-on-a-laptop - Unofficial study: Jev-style parallel typed decisions on stock 1.5B-8B models on an Apple Silicon laptop. Benchmarks, research notes, and a Hugging Face Space demo. Python
  • open-jev - Typed JSON inference with DiffusionGemma, with Every and Jev benchmark results. Python
  • jevbetter - A stronger one-pass scorer over a variable list of text options. Hashed n-gram encoder, rival-aware attention, gated head, temperature scaling — with a head-to-head benchmark vs the jevlike starter design. Python
  • decider - One-pass typed decisions with calibrated probabilities (System One style model), fine-tuned from Qwen3.5-2B. Python
  • jev-benchmarks - Probability-aware evaluation for typed decision models: calibration, selective risk, latency, and reproducible benchmarks. Python
  • openvons - openvons (open-Jev): 有限選択肢に確率で答える判断層 — テキスト / 画像 / 日本語音声コマンド. Python
  • jevfire - JEV-inspired parallel decisions for CUDA LLMs. One context, many decisions. vLLM API, game-agent examples, and reproducible benchmarks. JavaScript
  • jev-korean-benchmark - Reproducible early-access evaluation of Jev on Korean understanding and medical text, with runtime and cost evidence. Python
  • system-one-open - Open replica of TypeSafe's Jev: typed calibrated decisions in one forward pass, on Gemma 4 E2B / Gemma 3 270M (Modal). Python
  • jev-lm - A word-level language model whose output layer is Jev: n-gram drafter, Noul chunk verification, bits-per-token eval. TypeScript
  • openjev - Local bilingual probability decisions from context, questions, and candidate answers. Independent research preview inspired by TypeSafe Jev. Python
  • jev-behavior-study - Independent Jev 1.13.0 behavior study: report, controlled prompt experiments, raw results, and offline verification. Python
  • jev-benchmark - Benchmarks and a playground for TypeSafe's Jev (System One) model: chess, and who-is-the-player-talking-to for speech-to-text game NPCs. Python
  • jev-rerank-bench - Can a decision model beat dedicated rerankers? TypeSafe Jev vs Cohere Rerank 4 vs ZeroEntropy zerank-2 vs a chat-model baseline: 14 datasets, every raw API response, bootstrap ranges on every gap. Python
  • jev-sec-bench - Blind security benchmarks for Jev, TypeSafe's System One model: prompt injection and vulnerable code detection, built on jev-go. Go
  • qwen-rlcd - Jev-style calibrated decision model (Choice/Score/Noul) on Qwen3.5-0.8B. Python
  • kyotsu-ai-bench - AI benchmark on Japan's 2026 Common Test: Jev vs luna-none vs luna-low (static dashboard). HTML
  • gpt-vs-jev - Compare GPT generated language with JEV structured Noul decisions on the same input. TypeScript
  • jev-agent-failure-benchmark - Benchmarking Jev (Typesafe.ai) against a strong LLM on the Who&When Pro agent-failure-attribution benchmark (text subset). Python
  • padflow-jev-evals - Typed-decision benchmark from PadFlow (land development SaaS): schemas, anonymized labeled rows, and a runner for confidence-calibrated models like TypeSafe Jev. Python
  • s1-rs - Typed System One layer for Rust (Choice/Score/Noul). Rust
  • system-one-gemma - Open-source Jev-style System One decision model. Gemma 3 270M with a scoring head — fast, calibrated decisions in a single forward pass. No text generation. Inspired by TypeSafe.ai's Jev. Python
  • jev-phishing-bench - Jev (TypeSafe) vs Claude Haiku 4.5 on 2 000 phishing emails: accuracy, calibration, latency, cost. Reproducible benchmark. Python
  • jev-spam-eval - Zero-shot spam filtering with TypeSafe Jev Noul questions, compared with TF-IDF baselines. Jupyter Notebook
  • jev-shadcn-lint-eval - A small second eval for shadcn-ui/lint that uses TypeSafe's Jev to judge the linter's own output. JavaScript
  • system-one-adapter-rust - Rust port of TypeSafe system-one-adapter (LLM-backed system_one evaluations). Rust
  • paper-package - Jev research manuscript, evidence, and reproducible paper package. Python
  • openjev - Open, local, zero-cost reimplementation of the Jev decision layer for job postings. Python
  • jev-alpha-bench - Does Jev predict stock returns from news? It reads the news well; there is no tradeable alpha. Three arms separate reading from recall. Go
  • jev-headline-bench - Can Jev pick the winner of a real headline A/B test? 64.5% across 10,984 Upworthy randomized experiments, 74.7% when the difference was decisive. Go
  • jev-finance-benchmark - typesafe.ai model jev finance benchmark.
  • typed-decisions - Jev-shaped typed-decision model (state + Choice/Score/Noul questions -> calibrated probabilities, one pass) on ModernBERT / DeBERTa / LLaDA-MoE, with measured latency, accuracy, calibration and training cost. Python
  • jev-vs-luna - Reproducible Jev vs Luna review-classification benchmark with measured accuracy, latency, and costs. Python
  • jev-lab - TypeScript experiments, evaluations, and latency benchmarks for TypeSafe's Jev model. TypeScript
  • jev-bench - TypeSafe / Jev community project: thomasschafer/jev-bench. Python
  • jev-routing-experiment - Benchmarking TypeSafe's Jev decision model as a cost-efficient LLM router on RouterArena. Python
  • agent-handoff-gate - An experimental protocol for evidence-aware agent handoffs, bounded worker continuation, and TypeSafe/Jev-assisted review, with reproducible evaluation. Python

Site

This repo ships a Vite + React + Tailwind + shadcn (base-nova) navigation site (section boards + Fuse.js search). Deployed on Cloudflare Workers (npm run build → static assets; push to main auto-deploys).

See docs/architecture.md for IA and deploy details.

npm install
npm run dev

Contributing

See CONTRIBUTING.md for the data/items.json schema, PR hygiene, and link-only policy.

  • Prefer PRs that add real, maintained open-source projects related to TypeSafe Jev / System One (or high-signal X posts via the collector bot).
  • Keep GitHub / YouTube entries in data/items.json and X posts in data/x.json (id, type, title, summary, url, sourceMeta; tags only on GitHub / YouTube).
  • One project per PR when possible; include a short summary and tags.
  • Links only — no invented tweet IDs or PLACEHOLDER entries.

License

This repository is public. Listed third-party projects keep their own licenses; we do not claim ownership of any third-party project. Curated list text and site code in this repo are available for reuse under the same spirit as typical awesome-lists (attribution appreciated).

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TypeSafe System One / Jev community directory — GitHub projects & posts around typed decisions (typesafe.ai)

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