High Risk →

browser_drag

browser_drag

How to control browser_drag ↓

What browser_drag does on Termux Browser Pilot

AI agents invoke browser_drag to trigger actions in Termux Browser Pilot. 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.

High Risk

Why browser_drag needs a policy

The tool name 'browser_drag' strongly implies a browser drag-and-drop interaction (a UI action), which falls under Execute as it triggers external browser operations. The description is empty, so classification is based on the name and server context. Drag actions in a browser can trigger arbitrary UI interactions including drag-to-upload, drag-to-reorder, or other consequential operations.

From the tool's definition Tool name 'browser_drag' on a browser automation server described as 'Real browser automation for Termux/Android. Runs Firefox or Chromium on Xvfb on your phone with a persistent daemon for sub-second commands.'

Documented attack patterns abuse exactly the kind of access browser_drag gives an agent:

How to control browser_drag

PolicyLayer is an MCP gateway — it sits between your AI agents and Termux Browser Pilot, and nothing reaches the server without passing your rules. This is the rule we recommend for browser_drag:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "browser_drag": {
      "limits": [
        {
          "counter": "browser_drag_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

browser_drag 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.

  1. Create a free account and register Termux Browser Pilot — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

Free to start. No card required.

Related tools and policies

Go deeper

Questions about browser_drag

What does the browser_drag tool do? +

browser_drag. It is categorised as a Execute tool in the Termux Browser Pilot MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on browser_drag? +

Register the Termux Browser Pilot MCP server in PolicyLayer and add a rule for browser_drag: 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 Termux Browser Pilot. Nothing to install.

What risk level is browser_drag? +

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

Can I rate-limit browser_drag? +

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

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

browser_drag is provided by the Termux Browser Pilot MCP server (salviz/termux-browser-pilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Termux Browser Pilot tool call.

Start from Termux Browser Pilot, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

148 Termux Browser Pilot tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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