What Is Stealth Mode? How Marauder Bot Works During Screen Shares

"Stealth mode" is the most asked-about feature of Marauder Bot, and also the most misunderstood. This post explains exactly what it is, how it works under the hood, and — just as importantly — what it does not do and when you should not use it.

The short version

Marauder Bot is a Chrome extension that reads a webpage, detects the technical questions on it, and streams back structured answers — working code with unit tests for algorithm questions, the correct option with an explanation for multiple-choice questions, and an architecture writeup for system design prompts.

Stealth mode is about where that happens. The extension opens in a Chrome side panel, and that side panel can list and analyze webpages from any Chrome window signed into the same profile — not just the window it lives in. So the page being analyzed and the panel showing answers can be in two completely separate windows.

Why the separate window matters

Modern screen sharing is scoped. In Zoom, Google Meet, or Microsoft Teams, you choose what to share: a single tab, a single window, or the entire screen. When you share one window, everything else on your machine is outside the frame.

Stealth mode is designed around that fact. You keep the assessment page in the shared window, and open the Marauder Bot side panel in a different window that is not shared. Because the extension reads the page content directly through Chrome — it does not need you to click, select text, or interact with the shared page at all — nothing visible happens in the shared window while an analysis runs.

That is the entire trick. There is no hidden overlay, no transparent widget hovering over the assessment, and no interference with the page. The assessment page is never modified; the extension only reads it.

What stealth mode is not

A few things people assume that are not true:

• It does not alter webpages. Marauder Bot never injects content into or changes the page being analyzed. It parses the page's content and sends it to our server for analysis — that's it.
• It does not defeat proctoring software. Locked-down browser environments and dedicated proctoring tools are a different category. Marauder Bot is a Chrome extension and works on normal webpages in a normal Chrome browser.
• It is not guaranteed to be right. The answers come from frontier AI models (currently GPT-5.6 Luna, Claude Opus 4.8, and Gemini 3.5 Flash). They are very good at standard interview questions, but they can make mistakes. Treat the output as a strong draft to verify, not an oracle.

A note on the Chrome permission warning

When you install Marauder Bot, Chrome warns that the extension can "read and change all your data on all websites." That warning is a direct consequence of how stealth mode works: to list and parse questions on any open tab in any window, the extension needs broad read access. In practice it reads page URLs and titles when you open the side panel, and sends a page's content to the server only when you explicitly choose to analyze it. You can delete any analysis afterward, which removes the stored data. The FAQ covers this in more detail.

When you should not use it

We are direct about this on our FAQ, and it belongs in this post too:

• If you have agreed not to use external tools, don't. Some assessments ask you to explicitly commit to working unassisted. If you've made that commitment, keep it.
• If a result must be 100% correct, verify it yourself. AI models make mistakes, and confidence is not correctness.

Where does that leave stealth mode? Plenty of legitimate ground: practicing against real assessment pages at full speed, reviewing a finished online assessment to understand what you missed, checking your own answer against a second opinion, or working through question banks without pasting every problem into a chatbot by hand. The industry is in a strange transition — AI can solve most standardized technical screens, and companies are still figuring out what that means (we wrote about that shift in How AI is changing technical interviews). How you use the tool is your call to make, informed by the rules you've agreed to.

Trying it out

Every plan runs in stealth mode by default — it is not a paid add-on. The quickest way to understand it is to try it: create an account, install the extension from your dashboard, open the algorithm demo page in one window and the side panel in another, and run an analysis. The free trial includes 15 page analyses over 7 days, no payment method required.