Browser agent blocked (CAPTCHA / 403)

AI agents are increasingly using a browser themselves (Playwright, Browser Use, Skyvern, Computer Use). All that’s needed is a “blocked” detector and a push.

async def page_health(page):
    title = await page.title()
    body  = await page.evaluate("document.body.innerText")
    if any(k in body.lower() for k in
           ("captcha", "are you human", "cloudflare", "access denied", "blocked")):
        push("🚫 Browser-agent заблокирован",
             f"URL: {page.url}\nTitle: {title}\nFragment:\n{body[:500]}",
             priority=9)
        return False
    if any(k in title.lower() for k in ("403", "404", "rate")):
        push("🚫 HTTP-блок", f"URL: {page.url}\nTitle: {title}", 8)
        return False
    return True

def push(t, m, p):
    import os, requests
    requests.post(f"{os.environ['NOTIFLY_URL']}/message",
                  params={"token": os.environ["NOTIFLY_TOKEN"]},
                  json={"title": t, "message": m, "priority": p}, timeout=5)

A couple of useful additions:

• save the screenshot to S3 and put the link in extras;
• count how many times you get caught in an hour — if 5+, stop everything (see agent-stuck).