Jev in production › Model and agent routing

jev-use

Plugin and MCP server for Claude Code, Codex and pi that routes agent steps needing no text output to Jev (check, pick, rate) and gates shell commands via a PreToolUse hook. Dangerous commands denied in ~230 ms (author).

Open on GitHub ↗

~230 msmeasured against a baseline, as published by the source
Use
Model and agent routing
Industry
Developer tools
Form
Open-source tool
Stage
In production
Plugs into
Claude Code, Codex, pi
Listed
2026-09-20
Found via
github
Repository
shitianfang/jev-use
Stars
56
Forks
14
Last push
2026-09-22
Language
JavaScript
License
MIT
jev-use screenshot
assets/collab.gif in the shitianfang/jev-use README, MIT; shown from GitHub.

The README opens with

The best way for Claude Code, Codex, and pi to work with Jev: hand the tasks that need no text output to Jev — faster steps, fewer tokens, tasks done sooner and better.

It makes the LLM and Jev true collaborators: when content needs to be written, the LLM takes over; when a step just needs a fast decision, Jev executes it.

Directions task: Jev clicks, the LLM types — 10 decisions (p50 274 ms) · 4 writes; Jev rejects a wrong route, the LLM rewrites Context compaction — 200 messages judged in 7 calls, one LLM paragraph replaces the dropped pile; recall 3/3

Badge

For the project's own README, linking back here:

Listed in Jev in production

Also used for model and agent routing