Jev in production › Agent tool and action selection

jev-sim-use

Navigates iOS Simulator and Android screens by sending on-screen labels to Jev each step, replacing a full LLM agent turn with one Jev call per tap.

Open on GitHub ↗

The source publishes no measured number.
Use
Agent tool and action selection
Industry
Developer tools
Form
Open-source tool
Stage
Announced
Plugs into
iOS Simulator/Android
Listed
2026-09-25
Found via
github
Repository
Ryu0118/jev-sim-use
Stars
10
Forks
0
Last push
2026-09-30
Language
Swift
License
MIT

The README opens with

Reach any screen with sim-use at Jev speed, in one command instead of an agent turn per tap.

jev-sim-use is a fast navigator for iOS Simulator and Android devices. sim-use lets AI agents drive a device, but when a frontier LLM such as Claude Code runs the loop, every tap costs a full reasoning turn. jev-sim-use hands that loop to Jev, a small model that answers typed questions: each step is one request that returns "is the goal reached?" and "which on-screen action comes next?". Give it a goal like "Turn on Dark Mode in Settings" and it taps its way there on its own. Each step sends the screen's visible labels and values to the Jev API.

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

Listed in Jev in production

Also used for agent tool and action selection