Navigate-Tool · Android MCP: Risk & Policy

WHAT IT DOES

What Navigate-Tool does on Android

AI agents invoke Navigate-Tool to trigger actions in Android. 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 Navigate-Tool needs a policy

Navigate-Tool triggers real processes with real consequences. An agent gone sideways doesn't fire it once — it starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

Navigate-Tool Rate-limited

Navigate-Tool 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": {
    "Navigate-Tool": {
      "limits": [
        {
          "counter": "navigate-tool_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 Android, so you can run agents against it safely.

FAQ

Questions about Navigate-Tool

What does the Navigate-Tool tool do? +

Navigate to a specific URL. It is categorised as a Execute tool in the Android MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on Navigate-Tool? +

Register the Android MCP server in PolicyLayer and add a rule for Navigate-Tool: 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 Android. Nothing to install.

What risk level is Navigate-Tool? +

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

Can I rate-limit Navigate-Tool? +

Yes. Add a rate_limit block to the Navigate-Tool 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 Navigate-Tool completely? +

Set action: deny in the PolicyLayer policy for Navigate-Tool. 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 Navigate-Tool? +

Navigate-Tool is provided by the Android MCP server (tomdwipo/agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.