Jev

Command Palette

Search for a command to run...

OfficialDemo
Updated 2026-09-17

Workflow evals

How TypeSafe benchmarks System One on real workflows, with numbers you can argue about in standup.

What it does

Published methodology and per-model results for System One workflow evaluations. Use it when you need to compare latency, calibration, or task win rates against something official, not a screenshot from someone's laptop. Pair with the HTTP API reference when you are reproducing eval harnesses in your own repo.

Official workflow eval write-ups and numbers when you need to compare models on something more structured than vibes.

More in this orbit

Same category, overlapping tags. Hand-picked neighbors, not a black box.

IntegrationsTypeScript5,253
DemoFeatured
Vercel's agent framework with Jev wired into the experimental evaluate path, so scoring stays typed.
integrationsagentseval
IntegrationsTypeScript796
DemoFeatured
Vercel Labs terminal CLI that can point evaluate at Jev instead of another vibes-based judge.
integrationseval
Official205
OfficialDemoFeatured
Official Claude Code / Codex skill pack for Jev primitives, patterns, and evaluation shape.
officialagentseval
Agent toolingTypeScript130
TypeSafe Jev as a decision layer for the Pi coding agent: a measured tool-call gate plus jev_ask for typed, calibrated answers.
agent toolingagentseval
By Rishit