Verification & Guardrails

Evidence gate for RAG: a System One model judges whether retrieved excerpts support an answer before the LLM is allowed to speak.

Pre-install npm security gate where TypeSafe System One judges lifecycle scripts for intent, threat, secret access and remote execution.

Adds Jev semantic rules to Zod 4 schemas: Zod checks the shape, Jev checks the meaning, all rules in one request.

AI SDK middleware and OpenAI-compatible proxy that runs seven Jev checks on every LLM response, gated by confidence.

Research proposal-review contract: an LLM proposes one action, Jev answers four narrow questions, code produces evidence, applies nothing.

Evidence-driven frontend QA where Jev picks browser actions while code checks DOM, HTTP and database contracts.

Go reverse proxy between nginx and an LLM backend that extracts each request's user input, asks Jev if it is harmful, and blocks or passes.

TypeScript runtime that turns Jev's probabilistic answers into versioned, replayable decisions via ordered YAML policy rules.

Open protocol for decision-based agents: apps expose evidence and typed decisions, Jev assesses, and app code guards commits.

Repository for a public X demo of Jev, apparently checking ads before they run; the README has only a title.

Next.js app and GitHub Action where one parallel Jev call judges whether a pull request does what it claims, with policy in code.

TypeScript demos for testers: Jev triages CI test failures, gates test-agent commands and RAG answers, across gateway, Ollama and Foundry.

Explainable day-trip planner where an LLM drafts the itinerary and Jev screens places, compares transport and reviews each step.

Medplum demo where a bot uses Jev to compare a provider's visit note with a discharge summary and flag agreement or potential conflict.

Small web demo that takes a planned agent tool call and context and returns allow, ask_human or deny with Jev risk scores.

Local MCP server giving Claude Code, Codex, Cursor and OpenCode per-dimension Jev quality scores on their code while they work.

Semantic linter that evaluates files against plain-English JSON rule packs in one /v1/systemone pass, locally with Kev or remotely with Jev.

Small one-pass classifier that labels shell commands as read-only, reversible or destructive before an agent runs them.

DeepSeek Harness plugin with jev_decision tools, an opt-in risk and loop auto-guard, and a live self-test benchmark against the Jev API.

Benchmark of how well Jev spots real secret credentials in file snippets with a single Noul per case, plus latency analysis.

Sub-second Git pre-commit and pre-push gate that screens staged diffs for secrets and destructive commands with Jev.

Xano template for an agent tool-call guardrail in which Jev decides and Xano enforces.

Website for 'Jev IDS', an intrusion-detection concept: one network flow, one request, one verdict.

Public Jev playground showing a scheduling Choice with an explicit Unresolved option to separate mentioned times from agreed meeting times.

Software development framework for coding agents that hands dependency vetting, completion gates and debugging decisions to Jev.

Respan's behaviour classifier for AI traces that returns present, absent or not observable for each plain-language behaviour you define.

Official TypeSafe cookbook example for checking whether source context actually supports a claim.

Workflow design article: one Jev Noul asks whether a domain name refers to a protected brand, with the TLD kept out of the input.

Code-review CLI that coding agents run after every change, using Jev to check the diff near-instantly instead of an LLM reviewer.

OpenRouter cookbook: Jev checks a cheap model's draft against grounding constraints before accepting it or escalating to a stronger model.