Jev State

Jev State: Development tool that captures AI conversations as regression tests and exports them as runnable TypeScript code.

Jev State is a development tool that lets developers build, inspect, and regression-test conversational decisions powered by Jev. Users define agent behaviors, test natural-language decisions, and reproduce conversations to correct incorrect choices. The tool allows developers to inspect decision criteria and confidence before saving conversational workflows as regression tests. Once verified, developers can export their workflows as runnable TypeScript code and tests for their applications. Users can run live decisions by connecting a TypeSafe account or run optional simulations that do not require an API key.

Jev State at a glance

Best for: Software engineer
Runs on: Web
Pricing: Live usage billed by provider; simulation needs no key
Released: September 2026
Category: AI coding tool
Website: jev-state.vercel.app

Key features

Capturing conversations as regression tests
Exporting workflows as runnable TypeScript code
Testing natural-language decisions with live Jev
Simulating workflows without an API key
Inspecting decision choices, criteria, and confidence levels
Backing up, restoring, and exporting workspaces on the device
Starting from templates like support, onboarding, and lead qualification

Use it for

Routing customer support issues and confirming resolution across multiple turns
Guiding users from onboarding questions through completed setup
Collecting intent to qualify leads and trigger next steps
Fixing incorrect agent decisions and testing against regressions

Alternatives to Jev State

Jev — Fast, cheap typed decisions that software can act on directly
jevgrep — Reduces coding agent costs by providing targeted, relevant repository context.
JevStation — Get typed decisions with probabilities instead of prose you have to parse.
Vev — Runs locally on NVIDIA hardware with a fast, Jev-compatible API.
DeepEval — Provides over fifty research-backed metrics and pytest-native execution.
Jevia — Routes coding tasks to the right model tier using verified outcomes.
Katalon — Manage manual, automated, and AI-generated tests in a single platform.
TRAE — It features an autonomous coding agent that drives the entire development process.
DevSpecs — Keeps a durable thread of AI work locally without cloud sync or LLM calls.
Nova — Generates and maintains end-to-end tests automatically using real user behavior.
TestSprite — Runs end-to-end tests on live apps to catch regressions without manual scripting.
Jevcrawl — Finds answer pages more often and cheaper than letting Claude crawl.

All Jev State alternatives