The page never rendered
Modern sites are JavaScript first. A raw HTTP client sees an empty shell where the agent expected content. BrowserGen sessions are full Chromium: what renders for a person renders for the model.
Your agent
needs hands.
Where agent runs actually break.Three problems end most projects.
Nobody saw it fail
Headless failures produce logs, not understanding. Every BrowserGen session has a live view your team can open mid-run, so a stuck agent is something you watch, diagnose, and unstick.
The loop ran away
Agents retry. Hard per-session timeouts, plan-level concurrency, and instant stop calls mean a runaway loop costs you a denied create, never a surprise bill.
One session per task.
Fresh browser in, clean slot out
The pattern that survives production is process-like: the agent starts a fresh browser for each task, does its work, and throws the browser away. Isolation by default, deterministic cost, and a live-view URL in every trace so any browser step is something a person can open and watch.
Ten lines, end to end.Create, drive, destroy.
- Isolation by default. No shared cookies, no leaked login state between tasks or tenants.
- Deterministic cost. A task holds exactly one concurrency slot for exactly as long as it runs.
- Traceability. Log the session id and live-view URL with the task; every browser step becomes reviewable.
const session = await browsergen.sessions.create({ timeout: 600 });
const browser = await chromium.connectOverCDP(session.connectUrl);
// The agent drives; humans can watch at session.liveViewUrl.
const page = browser.contexts()[0].pages()[0];
await page.goto(task.url);
const text = await page.innerText("body");
await browser.close();
await browsergen.sessions.stop(session.id);Human in the loop, literally.
Same session, same state
When the agent meets a captcha, a two-factor prompt, or a page it cannot parse, it pauses and posts the live-view link. A person opens it, handles the step in the real browser, and the agent resumes in the same session with the same state. No restart, no lost progress.
Ship the agent, not the browser farm.
The integration guide takes about ten minutes, and the first seven days cost nothing.
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