jev-desktop
Codex plugin adding a bounded Jev decision loop to Computer Use for browser tabs and native macOS apps.
Overview
Jev Desktop for Codex adds a bounded decision loop to Codex Computer Use. Codex understands the goal, prepares text, defines allowed actions and verifies the result; Jev selects an operation and a compatible target in one request; Computer Use observes the approved interface and performs the click, fill, scroll or shortcut. It reuses the existing Computer Use runtime without a second browser controller or private APIs.
The motivation is that returning to the main agent after every UI click adds latency and loses short-term context. Each step reads a full accessibility snapshot, applies action and safety allow-lists, returns sensitive or consequential controls to Codex, and validates Jev's operation distribution and confidence before acting. A DONE answer triggers an independent local verifier; BLOCKED hands back to Codex. The interface is re-observed for freshness before executing. It is deliberately not an unrestricted desktop agent.
What the decision model decides
| Type | Question | Answers |
|---|---|---|
| Choice | Which operation should be performed next (action, DONE or BLOCKED)? | — |
| Choice | Which compatible target element should the operation act on? | — |
How it works
- Codex scopes the task and defines allowed actions
- Read an accessibility snapshot and filter by allow-lists
- Jev chooses operation and target; validate confidence
- Re-observe, execute through Computer Use, and verify independently on DONE
Strengths
- Fewer round trips to the main agent per click
- Sensitive controls always return to Codex
- Independent local verification of completion
Caveats
- Requires Codex Computer Use on macOS
- Only explicitly allowed controls are executable
At a glance
- Type
- Project
- Status
- beta
- Runtime
- Codex plugin (Computer Use, macOS)
- Has code
- yes
Use cases and integrations
How curated lists describe it
Computer use: supplies Jev action selection inside Codex Computer Use, choosing among desktop actions rather than asking a language model at every step.
yibie/awesome-jevTypeSafe Jev action selection inside Codex Computer Use.
wh000wh000/awesome-jev-liveAdds a bounded decision loop to Codex Computer Use for browser tabs and native macOS apps.
MrJev/awesome-jev
Frequently asked questions
What does Jev decide?
The next operation and its target element on screen.
Does Codex lose control?
No. Codex sets scope, permissions and values, and handles sensitive steps and final verification.
Does it install another browser controller?
No, it reuses the existing Codex Computer Use runtime.
Related projects
Lets coding agents run whole goals in your signed-in Chrome on macOS in background tabs, asking Jev or Claude Haiku only for real choices.
ProjectbetaPrebuilt browser, computer-use, robotics and game agents whose actions come from Jev, Laya or Cua-S1, with a scaffold for new agents.
ProjectbetaPythonWindows and Chrome GUI delegation for Codex: a local controller runs a task contract, calling Jev only for semantic choices.
ProjectprototypePythonComputer-use platform (Cua Spaces, Driver, Lume) with CUA-S1 small decision models and a preview jev-use example for bounded actions.
ProjectbetaPythonLocal stdio MCP server that executes whole browser and macOS goals with a Jev-driven observe-decide-act loop.
MCP serverbetaTypeScriptBrowser Use's browser agent where Jev picks an operation and page element in one request and a small LLM only writes text to type.
LibrarybetaPython