Laya uses a non-autoregressive model to answer choice, score and noul questions, with a router selecting checkpoints. Its self-hosted server exposes POST /v1/systemone for existing Jev clients; the underlying model is Laya rather than hosted Jev.
Agent routing & tool choice
Routers and orchestrators that choose between tools, models, agents or workflow branches. Jev returns a typed choice instead of a sentence.
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Teams collaborate with multiple agents across chat and development platforms, starting work from messages, issues, pull requests, webhooks or schedules. Jev helps choose the agent and model, including routing support conversations to the appropriate specialist.
Reticle checks running apps using network, console and state evidence, returning pass, fail or unknown. The optional Jev exploration driver selects DOM candidates; internal verification-flow routing remains planned. Connect a development app through MCP, describe expected behavior and save flows for deterministic replay.
Hermes Jev Skills provides reusable skills for model routing, search, memory filtering, triage and browser actions. Jev makes bounded choices such as selecting a model or ranking retrieved passages; the host model handles prose. The skills work with Hermes, Claude Code and Codex. Shadow mode records routing decisions without switching models.
awesome-jev-by-typesafe collects sourced Jev use cases, prompts, patterns and starter code as an independent community resource. It explains Choice, Score and Noul for classification, routing and verification while keeping control flow in code. Explore Python and TypeScript examples; offline policy tests need no key, while live examples require TYPESAFE_API_KEY.
Jev Decision Atlas indexes public resources by the decision an agent makes, such as tool selection, routing or classification. Start with the reading path for a first API call, then browse decision patterns and inspect the linked implementation evidence.
jev-router launches the native coding CLIs through a local proxy and selects a model tier for each new user turn. Install jev-router with npm, configure JEV_API_KEY, and launch jev-claude or jev-codex with an installed, authenticated upstream CLI.
VexJoy Agent connects requests to specialist agents, reusable skills and workflows across supported coding runtimes. Install the toolkit for the desired runtime and configure direct TypeSafe or Vercel transport; the installer supports a dry-run preview.
Web Search Plus adds web search and page extraction tools to Hermes, with routing and fallback across configured providers. Install the Hermes plugin and configure a search provider. Enable Jev separately with setup --jev and install typesafe-sdk.
Jev Codex Router chooses model capability and thinking effort for each Codex model call, including tool continuations. Use the documented macOS setup with Codex desktop, Node.js, Python and a TypeSafe key, then install the embedded stack and select its router.
JevRouter selects among models, agents, skills, MCP tools and CLIs, exposing single decisions or multistep capability plans. Use the route or plan CLI, SDK or agent setup with TypeSafe or OpenRouter credentials; a labeled demo provider works offline.
CLI that picks Cursor, Claude Code, Codex, or OpenCode + model/effort for a task, then launches it. Powered by Jev and Herdr
Open-source AI email triage for Gmail. Sorts your inbox into Needs reply, Updates, Promos, Sales and Spam with Jev, TypeSafe AI's decision model, via Vercel AI Gateway. Read-only, runs locally, 1,000 emails in about a minute for 3 cents.
Semantic tool routing and typed System One decisions for the Pi coding agent using TypeSafe Jev
Route HTTP requests by meaning. A semantic router for Hono powered by Jev.
Real-time risk triage gateway for exchange deposits and withdrawals — Jev (TypeSafe System One) handles triage only; adjudication stays in deterministic code.
A Document OCR Router to help route pages based on content.
Typed, confidence-aware agent skill routing with TypeSafe Jev.
Claude Code plugin: Jev for rule checks, verbatim compaction, and prompt routing
BrighTO LLM Router: free open-source, ultra-fast self-hosted Rust LLM gateway for OpenAI/Anthropic APIs, SystemOne/JEV/DJEV decisions, Ollaya/Laya, load balancing, fallback routing, team keys and token budgets.
Open-source Jev log triage for OpenTelemetry. Score the signal before expensive LLM analysis.
Automatic model routing for Pi using TypeSafe's Jev through Vercel AI Gateway
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.
Fast decision routing for agent harnesses — native MCP with Jev for tool selection and MCTS for multi-step decisions.