Test on the real engine.

import { Driftstack } from '@driftstack/sdk';

const ds = new Driftstack({ apiKey: process.env.DRIFTSTACK_API_KEY! });

// Every session goes out through one of your saved proxies.
let session = await ds.agentSessions.create({ proxy_id: process.env.DRIFTSTACK_PROXY_ID! });

try {
  // Wait up to two minutes for its browser to start.
  for (let i = 0; session.ready === false && i < 60; i++) {
    if (session.status === 'closed') throw new Error('The session did not start');
    await new Promise((resolve) => setTimeout(resolve, 2_000));
    session = await ds.agentSessions.get(session.id);
  }

  // Say what you want. The AI plans the steps and runs them;
  // the call returns when its turn ends.
  const reply = await ds.agentSessions.message(
    session.id,
    'Open https://books.toscrape.com, go to the Travel category ' +
      'and tell me the cheapest book there and its price.',
    { onStep: ({ index, result }) => console.log('step', index + 1, result.kind) },
  );

  // A turn that stops early (a limit, or a question for you) carries a notice.
  if (reply.kind !== 'plan-executed' || reply.notice !== undefined || reply.answer === undefined) {
    throw new Error('The task did not finish');
  }
  console.log(reply.answer);
} finally {
  await ds.agentSessions.close(session.id);
}