Jev in production › Model and agent routing

Coding Router Jev

Jev routes Codex, Claude Code, and Pi coding-agent turns, auto-selecting the model and reasoning effort for each turn.

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Use
Model and agent routing
Industry
Developer tools
Form
Open-source tool
Stage
Announced
Plugs into
Codex, Claude Code, Pi coding agent
Listed
2026-10-05
Found via
github
Repository
guanghuang/coding-router-jev
Stars
2
Forks
0
Last push
2026-10-07
Language
TypeScript
License
MIT

The README opens with

A TypeScript/Bun project that routes coding-agent user turns through JEV (the TypeSafe classifier). The codex-jev command wraps the Codex CLI; the claude-jev command wraps the Claude Code CLI; the Pi extension registers a jev/auto virtual model so Pi selects physical models and thinking levels automatically.

If macOS/Linux cannot find the installed commands, add ~/.local/bin to your PATH:

Set both TypeSafe values in your environment or ~/.coding-router-jev.env before launching the router. On Windows, the config file is %USERPROFILE%\.coding-router-jev.env. To set them in your environment instead, use the commands for your shell:

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

Listed in Jev in production

Also used for model and agent routing