What it is
Jev-cu is a skill and script set for Codex Computer Use that decides the next GUI action from text candidates, while Codex reads the screen and executes. It targets developers automating desktop apps with a safety-first, dry-run default.
How it uses Jev
Jev chooses the element, action, completion score, and risk from text candidates extracted from the accessibility tree. The decision loop calls Jev via a `jev-decide` script, applies a local policy gate, and passes the chosen action to the Codex driver.
Primitives:choicescore
Technique worth stealing
Feed only text candidates from the accessibility tree to Jev, never screenshots, and gate risky actions locally.
Try it
npm test for unit tests; npm run p0 for offline evaluation (requires TYPESAFE_API_KEY).
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-centricyes0.90
- Shows a System One patternyes0.83
- Handles uncertaintyno0.12
- Measuredno0.06
- Runnableyes0.94
- Worth recommendingunclear0.58
- Model replicano0.09
- Problem scopescore on a 0–2 scale1.11
- About Jevyes0.98
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 23 Sept 2026.