shipwithjev

Catalog / Agents & browsers

0023GitHub

playjev

Typed browser automation: Playwright acts, Jev decides.

Filed’s library keeps Playwright for everything deterministic and asks Jev only for the step that needs a judgment about the page.

filedcom/playjevREADME ↗
PlayJev</h1>

<p align="center"><strong>Stagehand, but with Jev.</strong><br />Natural-language browser automation for Playwright, powered by Jev.</p>

<p align="center">
  <a href="https://github.com/filedcom/playjev/actions/workflows/ci.yml"><img alt="CI" src="https://github.com/filedcom/playjev/actions/workflows/ci.yml/badge.svg" /></a>
  <a href="LICENSE"><img alt="License: MIT" src="https://img.shields.io/badge/license-MIT-6f5cff" /></a>
  <img alt="Status: experimental" src="https://img.shields.io/badge/status-experimental-f5a623" />
  <img alt="Node 20+" src="https://img.shields.io/badge/node-%3E%3D20-c9ff57?labelColor=14121f" />
  <img alt="TypeScript" src="https://img.shields.io/badge/TypeScript-strict-3178c6" />
</p>

<p align="center">
  <a href="docs/guide/getting-started.md">Documentation</a> ·
  <a href="docs/guide/getting-started.md">Quickstart</a> ·
  <a href="docs/api/playjev.md">API</a> ·
  <a href="docs/evals/index.md">Evals</a>
</p>

---

## What is PlayJev?

PlayJev is a TypeScript library for controlling websites with plain-English instructions while keeping the full Playwright API. Give it an existing Playwright page, then ask it to click controls, navigate websites, fill forms, inspect page state, or choose between visible options.

If you know Stagehand, the shortest explanation is: **PlayJev is Stagehand, but with Jev making the browser decisions instead of a generative LLM.**

```ts
await page.act("Open the pricing page");
await page.act("Complete the contact form", { fields });
await page.check("Did the form submit successfully?");
```

> [!IMPORTANT]
> PlayJev is a new, experimental project—not a production-stable release. The API is actively evolving as it is tested against broader browser benchmarks. It currently requires Chromium/CDP and 

Also filed under Agents & browsers

  1. 0295

    Flight search with Browser Use

    Breaking: Browser Use + Jev = Ultrafast ⚡ Findings flights took 7s and cost only $0.0039 🤯 > new action space every step > DOM state space > small LLM fallback to type (this video is at 1x speed btw) Built a tiny open source browser agent. try it below ↓

    @gregpr07 · Agents & browsers · ~$0.004 · ~7 s

  2. 0500

    Jev: AI Decisions as a Typed Function Call | StackToHeap

    # Jev: AI Decisions as a Typed Function Call What I learned using TypeSafe's Jev for code review, and why its more surprising uses are browser control and generative UI.…

    stacktoheap.com · Agents & browsers

  3. 0319

    x-scanner

    Chrome extension that labels every post you scroll past on X with six typed questions per post, and counts what it costs in the corner.

    oso95 · Agents & browsers

  4. 0318

    Vibe Check for X

    Chrome extension that scores draft posts and reply context before posting; optional media descriptions come from a separate vision model.

    RafalWilinski · Agents & browsers