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All decision model projects

2823 public apps, SDKs, integrations, demos and write-ups built on decision models. Projects with working code come first.

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  • Go MCP server giving any client typed Jev decisions via OpenRouter or TypeSafe, with validated answers and no paid retries.

    MCP serverproductionGo
  • Source-verified atlas of GitHub projects using Jev, with 859 projects searchable by use case, language, licence and decision point.

    Projectproduction
  • Korean-language daily radar of public repositories using Jev, with machine-readable index and code-verified markers.

    Projectproduction
  • Bilingual catalogue of Jev papers, software projects and public materials, with evidence levels, published as a static site.

    Appproduction
  • x402 pre-payment risk-check provider combining sanctions lists, phishing feeds and simulation with Jev checks for injected instructions.

    Projectproduction
  • Chrome extension that groups and orders all tabs in a window by meaning and your rules with a single Jev request.

    ServiceproductionTypeScript
  • Auditable Zig terminal agent pairing Codex for coding with Jev typed preflight and postflight checks under deterministic policy gates.

    CLIproductionZig
  • Automated PR review: an LLM agent finds issues, a verifier refutes them, and Jev decides how to triage, route and label.

    ProjectproductionTypeScript
  • Rust code-review gate asking Jev small typed questions about functions and tests, failing CI only on rules measured 80% right.

    CLIproductionRust
  • Auto-updated bilingual leaderboard of Jev ecosystem projects, tutorials and discussions, discovered daily and sorted by GitHub stars.

    Projectproduction
  • Kilo Code's cloud monorepo, where a System One classification replaced an LLM call in the auto-routing path.

    ProjectproductionTypeScript
  • LangChain's Python framework, which includes an optional TypeSafeClassifier runnable plus model-routing and risky-tool middleware using Jev.

    PluginproductionPython
  • LangChain.js, which includes an optional TypeSafeClassifier runnable and middleware for bounded routing and tool-call checks with Jev.

    PluginproductionTypeScript
  • Agent observability platform that finds and fixes agent failures, with an optional Jev preclassifier for conversation checks.

    ProjectproductionTypeScript
  • Free 12-notebook course building 13 agent tools with Jev as the fast decider and an LLM as the slow writer, for under $0.20.

    ProjectproductionPython
  • Open-source AI gateway for 100+ LLMs that can use Jev to classify requests for complexity routing and to compact tool results.

    ProxyproductionPython
  • Simon Willison's LLM plugin that adds Jev as a model for yes/no, choice and score questions from the command line.

    PluginproductionPython
  • Self-hostable Reddit buyer-intent finder that has Jev judge every post and comment it reads, with a written reason and cost per lead.

    ProjectproductionTypeScript
  • One-file Mastra input processor that asks Jev whether a message must be blocked, failing open behind a deadline and circuit breaker.

    ProjectproductionTypeScript
  • Public contribution repo for modelsystem.one, a curated catalog of System One decision models such as Jev.

    Projectproduction
  • GEO analytics platform tracking brand visibility in AI answers; a feature flag moves its visibility classifiers onto Jev booleans.

    ProjectproductionTypeScript
  • Multi-agent orchestration layer for Claude Code with opt-in Jev hooks for fast judgment points, decision caching and egress controls.

    PluginproductionTypeScript
  • Oh My Pi coding agent (a Pi fork with IDE wiring) with an optional TypeSafe judgment provider for bounded decisions.

    ProjectproductionRust
  • Async Scala client for OpenAI and many providers, with adapters for TypeSafe Jev and other decision models.

    LibraryproductionScala
  • Open-source workspace for running and reviewing AI coding agents across devices, with an optional Jev-based automatic model router.

    ProjectproductionTypeScript
  • AI workspace with chat, durable tasks, integrations and a wiki whose approval review for workspace actions runs through Jev.

    ProjectproductionTypeScript
  • Volcengine's context database for agents, with a Jev rerank client that scores candidate documents with jev-latest as relevance.

    LibraryproductionPython
  • Open-source Claude Cowork alternative built on OpenCode; per list notes, its eval testkit uses Jev as a verification judge.

    ProjectproductionTypeScript
  • Large Claude Code plugin of skills, agents and hooks that can optionally ask Jev to classify a session's work category.

    ProjectproductionTypeScript
  • Chrome extension that asks Jev, sentence by sentence, whether text is what the reader came for and strikes out the filler.

    Browser extensionproductionJavaScript