What it is
A Codex plugin that adds a bounded decision loop to Codex Computer Use for browser tabs and native macOS apps, letting Codex delegate per-step action selection to TypeSafe Jev.
How it uses Jev
For one observed screen, Jev receives the scoped task goal, allowed indexed element labels and roles, supported operations, and boolean observations. It predicts an operation head and operation-specific target heads in one request; only the selected target head is validated and executed through Computer Use.
Primitives:choice
Technique worth stealing
Single-request operation plus operation-specific target-head policy, validating only the selected target head.
Try it
Add the marketplace, install the plugin, run scripts/setup.py and scripts/doctor.mjs --live, then ask Codex for a bounded task.
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricyes0.81
- Shows a System One patternyes0.70
- Handles uncertaintyno0.05
- Measuredno0.05
- Runnableyes0.73
- Worth recommendingunclear0.43
- Model replicano0.31
- Problem scopescore on a 0–2 scale1.02
- About Jevyes0.97
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.