What you can build with it

What it does

Jev Codex Router chooses model capability and thinking effort for each Codex model call, including tool continuations.

Evidence 1 ↗

How Jev fits

Jev sees bounded decision state while the executor receives the full replay; code separately enforces the mandatory Astra policy.

Evidence 1 ↗ · Evidence 2 ↗

Getting started

Use the documented macOS setup with Codex desktop, Node.js, Python and a TypeSafe key, then install the embedded stack and select its router.

Evidence 1 ↗

Scope and limits

The historical savings figure is simulated under an old policy, not measured quota savings. Jev errors use a logged Astra-medium fallback.

Evidence 1 ↗ · Evidence 2 ↗

Repository description

Per-turn model & reasoning routing for Codex, driven by Jev (TypeSafe System One): picks the model, thinking depth and speed mode for every turn.

Project facts

Relationship to Jev
Integration
Evidence
Documented
Language
JavaScript
License
MIT
Origin
Original repository
Repository status
Archived
Created
2026-09-17
Last code update
2026-09-22
GitHub stars
275
Evidence checked
Sep 30, 2026
Metadata checked
Sep 28, 2026
Check status
Up to date

Stars measure the whole repository, including work unrelated to Jev.

Evidence and scope

Documented records the linked documentation or source. JevHunt has not independently run or benchmarked this project.

Evidence commit: 8701ef788aa8cb0948f299538747fb01029d32b8

Discovered through: awesome-jev, typesafe-field-guide.

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