{
 "schema_version": 1,
 "generated": "2026-10-26",
 "id": "browser-use-jev-ultrafast--watch-a-fast-browser-agent-in-the-inspector",
 "repo": "browser-use/jev-ultrafast",
 "repo_url": "https://github.com/browser-use/jev-ultrafast",
 "repo_slug": "browser-use-jev-ultrafast",
 "title": "Run a 7 second browser agent and watch every decision",
 "page_title": "How to run a 7 second browser agent and watch every decision with Jev Ultrafast",
 "summary": "Start the local inspector and see each element table, operation probability and executed action.",
 "who": "A developer evaluating browser agents who wants to see why one is fast before adopting it.",
 "problem": "Most browser agents are slow because they screenshot and call a big model for every step, and you cannot see why they chose an action.",
 "outcome": "A local demo that runs a real task and shows numbered elements, operation and target probabilities and every executed action.",
 "steps": [
  "Run `git clone https://github.com/browser-use/jev-ultrafast.git` and `cd jev-ultrafast`",
  "Run `uv sync` then `cp .env.example .env` and add TYPESAFE_API_KEY and TEXT_MODEL_API_KEY",
  "Start the inspector with `uv run jev` and open http://127.0.0.1:8766",
  "Click Start demo, then Run automatically; use Choose next to pause before each action",
  "If Chrome does not connect, run `uv run browser-harness --doctor` and allow remote debugging"
 ],
 "agent_prompt": "Set up browser-use/jev-ultrafast locally, start the inspector with uv run jev, run the demo step by step with Choose next, and summarize for each step the operation chosen, its probability and the target element.",
 "agents": [
  "claude-code",
  "codex"
 ],
 "difficulty": "Intermediate",
 "time": "20 minutes",
 "basis": "readme",
 "caveat": "",
 "category": "Software and DevOps",
 "tags": [
  "Software and DevOps"
 ],
 "lang": "python",
 "requirements": [
  "Python with uv",
  "Chrome with remote debugging allowed (connected through Browser Harness, installed by uv sync)",
  "TYPESAFE_API_KEY and TEXT_MODEL_API_KEY (an OpenRouter key in the example config)",
  "Live examples make paid API calls"
 ],
 "risk": "none",
 "seen_in_the_wild": false,
 "mentioned_publicly": false,
 "risks": [
  {
   "tag": "credentials",
   "notice": "The agent drives your existing Chrome profile, so owned tabs share your logins; use a separate profile for experiments."
  }
 ],
 "best": true,
 "score": 1.0,
 "evidence": [],
 "url": "https://dedupedai.com/use-cases/browser-use-jev-ultrafast/watch-a-fast-browser-agent-in-the-inspector/",
 "md": "https://dedupedai.com/use-cases/browser-use-jev-ultrafast/watch-a-fast-browser-agent-in-the-inspector/index.md",
 "disclaimer": "Deduped lists open-source repositories that belong to other people. We do not own, maintain, audit, or vouch for any of them, and a repo appearing here is not an endorsement or a safety check. The use cases, steps, and prompts are written by AI and may be incomplete, outdated, or just wrong. Where a use case is marked \"Seen in the wild\", we link to public posts where someone described something similar, but we have not verified those posts and the use case itself is still our AI's own write-up. Use all of this at your own risk. Only run code, commands, or agents on systems and accounts you are authorized to use, and read the code and every command before you run it, especially anything that touches credentials, files, or the network. Nothing here is professional, security, legal, or financial advice. All trademarks and project names belong to their respective owners, and their use here does not imply affiliation. Content is provided as is, without warranties of any kind. Found a mistake, a safety problem, or something you want removed? Email hello@dedupedai.com and we will look at it promptly.",
 "api": "https://dedupedai.com/api/v1/usecases/browser-use-jev-ultrafast--watch-a-fast-browser-agent-in-the-inspector.json",
 "api_version": "v1"
}