toggle_talkback · Enhanced ADB MCP Server MCP: Risk & Policy

WHAT IT DOES

What toggle_talkback does on Enhanced ADB MCP Server

AI agents invoke toggle_talkback 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 toggle_talkback needs a policy

This tool triggers an external operation on the Android device by enabling or disabling the TalkBack accessibility service via ADB. It modifies system-level accessibility settings, which constitutes executing a device-level action. While the change can be reversed, it affects the device's runtime behavior and could disrupt UI testing workflows or normal device operation if misused.

From the tool's definition Enable or disable TalkBack accessibility service

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

toggle_talkback Rate-limited

toggle_talkback 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": {
    "toggle_talkback": {
      "limits": [
        {
          "counter": "toggle_talkback_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 toggle_talkback

What does the toggle_talkback tool do? +

Enable or disable TalkBack accessibility service. 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 toggle_talkback? +

Register the Enhanced ADB MCP Server MCP server in PolicyLayer and add a rule for toggle_talkback: 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 toggle_talkback? +

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

Can I rate-limit toggle_talkback? +

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

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

toggle_talkback 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.

// THE FULL RECORD

toggle_talkback is one line of Enhanced ADB MCP Server's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →