cloakcheck

Scan a page for content planted to hijack an AI browsing/shopping agent before it acts on the page.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Scan a page for content planted to hijack an AI browsing/shopping agent before it acts on the page.

    Server tool list (1)

    Raw names from tools/list. Only developers need these.

    check_page_for_agent_hijackingFetch a URL and scan it for content planted to hijack an AI agent visiting it rather than to inform a human: invisible unicode (zero-width joiners, steganographic tag-block characters), CSS-hidden text (display:none, opacity:0, off-screen) paired with instruction-shaped language ('ignore previous instructions', 'add to cart and checkout', fake system-role text), and instruction-shaped phrases in alt/title/aria-label attributes or meta tags. Call this before an autonomous browsing or checkout flow acts on instructions found on a page. A clean result means no known hijack pattern found, not a full content-safety guarantee.
    cloakcheck: connect to Claude, ChatGPT, Cursor · Connectors.fun