scroll_to_text · Enhanced ADB MCP Server MCP: Risk & Policy

WHAT IT DOES

What scroll_to_text does on Enhanced ADB MCP Server

AI agents invoke scroll_to_text to trigger actions in Enhanced ADB MCP Server. 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 scroll_to_text needs a policy

This tool executes interactive UI actions (scrolling) on a connected Android device, driving physical device behavior. It is not merely reading data but actively manipulating the device UI state in a loop. Misuse could cause unintended navigation or UI state changes, placing it in the Execute category.

From the tool's definition 'Scroll until text is found on screen' — triggers repeated scrolling actions on the Android device UI until a condition is met

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

scroll_to_text Rate-limited

scroll_to_text 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": {
    "scroll_to_text": {
      "limits": [
        {
          "counter": "scroll_to_text_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 Enhanced ADB MCP Server, so you can run agents against it safely.

FAQ

Questions about scroll_to_text

What does the scroll_to_text tool do? +

Scroll until text is found on screen. It is categorised as a Execute tool in the Enhanced ADB MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on scroll_to_text? +

Register the Enhanced ADB MCP Server MCP server in PolicyLayer and add a rule for scroll_to_text: 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 Enhanced ADB MCP Server. Nothing to install.

What risk level is scroll_to_text? +

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

Can I rate-limit scroll_to_text? +

Yes. Add a rate_limit block to the scroll_to_text 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 scroll_to_text completely? +

Set action: deny in the PolicyLayer policy for scroll_to_text. 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 scroll_to_text? +

scroll_to_text is provided by the Enhanced ADB MCP Server MCP server (rahulkr/r_adb_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.