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Test AI agents in the browser you already use

Stealth Prompt is a browser-native assistant for authorized AI security testing. Pick one chat interaction, generate an evidence-driven test message, inspect the reply, and continue the same line of investigation without moving cookies or recreating the UI in an automation script.

Install from Chrome Web Store Run the guided demo

Authorized targets only

Use Stealth Prompt only on systems you own or are explicitly authorized to assess.

Why it exists

  • Real browser context

    Test the authenticated UI and account state already open in Chrome.

  • Exact interaction scope

    Detect or select the input, send control, and response container. The model cannot invent a browser operation or silently broaden the target.

  • Progressive autonomy

    Generate only, approve each send, prepare guided follow-ups, or authorize a bounded automatic run.

  • Evidence-backed results

    Model judgement can raise a potential finding. Confirmation requires a deterministic check or an explicit operator decision.

Two ways to connect AI

Path Best for Providers Evidence
Local Core CLI access, credential isolation, deterministic scorers, durable artifacts Claude CLI, Codex CLI, Ollama, OpenAI API, Fake JSON and self-contained HTML on disk
Direct API Fastest setup with no local service OpenAI API, Anthropic API Up to 50 browser-local reports and JSON download

Compare connection modes

The assessment loop

Observe → hypothesize → generate → review → send → capture → verify → report

Stealth Prompt is deliberately closer to a focused Repeater for an AI-agent interface than to a broad automatic scanner. The operator chooses the page, interaction, objective, data-sharing policy, and autonomy limits.

Start here

  1. Install the extension and run the local demo.
  2. Choose Local Core or Direct API.
  3. Bind the target interaction and run a test.
  4. Review and export the evidence.