Browser & computer use

jev-for-chrome

@chy4pro★ 4TypeScriptMITupdated 2026-09-20▶ runnable

Jev for Chrome: drives the tab you are looking at with TypeSafe Jev, a sub-second decision model. Community port of browser-use/jev-ultrafast, not affiliated with TypeSafe.

chy4pro/jev-for-chrome ↗

Where it calls Jev

endpoint: 'https://api.typesafe.ai/v1/systemone',

src/shared/types.ts:64

The link points at the commit we read, so the line number still holds.

What it asks Jev

These question sets are lifted from this project's source exactly as written.

from scripts/test_live_e2e.ts:68

  1. operationchoice

    Choose the next action to find flights

    • CLICK — Click search flights button
    • TYPE_TEXT — Type text in destination
    • DONE — Already finished

Run it on your own text

The code
import { experimental_evaluate as evaluate } from 'ai';

const { answers } = await evaluate({
  model: 'typesafe-ai/jev',
  state,
  questions: {
    operation: { type: 'choice', instructions: 'Choose the next action to find flights',
      criteria: { CLICK: 'Click search flights button', TYPE_TEXT: 'Type text in destination', DONE: 'Already finished' } },
  },
});

from src/options/Options.tsx:21

  1. operationchoice

    Pick an operation

    • CLICK — Click more information
    • DONE — Done

Run it on your own text

The code
import { experimental_evaluate as evaluate } from 'ai';

const { answers } = await evaluate({
  model: 'typesafe-ai/jev',
  state,
  questions: {
    operation: { type: 'choice', instructions: 'Pick an operation',
      criteria: { CLICK: 'Click more information', DONE: 'Done' } },
  },
});

from tests/providers.test.ts:22

  1. operationchoice

    Choose next operation

    • CLICK — Click more info
    • DONE — Done

Run it on your own text

The code
import { experimental_evaluate as evaluate } from 'ai';

const { answers } = await evaluate({
  model: 'typesafe-ai/jev',
  state,
  questions: {
    operation: { type: 'choice', instructions: 'Choose next operation',
      criteria: { CLICK: 'Click more info', DONE: 'Done' } },
  },
});

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