​
Overview

Stagehand is a relatively low-level AI-native framework for building browser agents in JavaScript.

Stagehand is designed to be a seamless extension of Playwright, and in particular, it’s Page API.

Thanks to Laminar’s native integration with Playwright, you can trace your Stagehand agents with ease.

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Usage

import { Laminar } from '@lmnr-ai/lmnr';
Laminar.initialize({
  projectApiKey: process.env.LMNR_API_KEY,
});
import { Stagehand } from 'stagehand';

const stagehand = new Stagehand({
    // options
});

await stagehand.init();
const page = stagehand.page;
await page.act("...");

In some setups, you may need to pass the module to the Laminar.initialize function. For example,

import { Laminar } from '@lmnr-ai/lmnr';
import { Stagehand } from 'stagehand';
Laminar.initialize({
  projectApiKey: process.env.LMNR_API_KEY,
  instrumentModules: {
    stagehand: Stagehand,
  },
});

const stagehand = new Stagehand({
    // options
});

await stagehand.init();
const page = stagehand.page;
await page.act("...");

​
Example result

An example trace for page.act('go to Laminar pricing page')