apply_stealth_mode · MCP Selenium WebDriver MCP

WHAT IT DOES

What apply_stealth_mode does on MCP Selenium WebDriver

AI agents invoke apply_stealth_mode to trigger actions in MCP Selenium WebDriver. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why apply_stealth_mode needs a policy

This tool executes a set of browser manipulation techniques designed to evade bot/automation detection systems. It is an active operation that modifies runtime browser behavior (e.g., masking WebDriver signals, spoofing navigator properties).

From the tool's definition 'Aplica todas las técnicas de evasión de detección a una sesión' — applies detection evasion techniques to a browser session, and the server description explicitly mentions 'advanced detection evasion capabilities'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apply_stealth_mode Rate-limited

apply_stealth_mode stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "apply_stealth_mode": {
      "limits": [
        {
          "counter": "apply_stealth_mode_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches MCP Selenium WebDriver, so you can run agents against it safely.

FAQ

Questions about apply_stealth_mode

What does the apply_stealth_mode tool do? +

Aplica todas las técnicas de evasión de detección a una sesión. It is categorised as a Execute tool in the MCP Selenium WebDriver MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on apply_stealth_mode? +

Register the MCP Selenium WebDriver MCP server in PolicyLayer and add a rule for apply_stealth_mode: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches MCP Selenium WebDriver. Nothing to install.

What risk level is apply_stealth_mode? +

apply_stealth_mode is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit apply_stealth_mode? +

Yes. Add a rate_limit block to the apply_stealth_mode rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block apply_stealth_mode completely? +

Set action: deny in the PolicyLayer policy for apply_stealth_mode. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides apply_stealth_mode? +

apply_stealth_mode is provided by the MCP Selenium WebDriver MCP server (nixon-suarez/mcp-selenium-webdriver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.