browser_bounding_box

Get element position and dimensions via getBoundingClientRect.

SERVERTermux Browser Pilot SOURCEsalviz/termux-browser-pilot

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/salviz-termux-browser-pilot/browser-bounding-box.md

WHAT IT DOES

What browser_bounding_box does on Termux Browser Pilot

AI agents call browser_bounding_box to retrieve information from Termux Browser Pilot without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why browser_bounding_box is rated Low

This tool queries the browser DOM to extract geometric information about an element's bounding box. It performs information retrieval only and cannot modify, execute, or destructively alter state. The operation is purely observational and safe for security purposes.

From the tool's definition Tool retrieves element position and dimensions using getBoundingClientRect, which is a read-only DOM query method that returns an object with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs browser_bounding_box safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Termux Browser Pilot, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For browser_bounding_box, this is the rule to start with:

browser_bounding_box Allowed

browser_bounding_box is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "browser_bounding_box": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Termux Browser Pilot, apply this rule, and every browser_bounding_box call is checked against it from then on.

FAQ

Questions about browser_bounding_box

What does the browser_bounding_box tool do? +

Get element position and dimensions via getBoundingClientRect. It is categorised as a Read tool in the Termux Browser Pilot MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on browser_bounding_box? +

Register the Termux Browser Pilot MCP server in PolicyLayer and add a rule for browser_bounding_box: 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_bounding_box? +

browser_bounding_box is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit browser_bounding_box? +

Yes. Add a rate_limit block to the browser_bounding_box 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_bounding_box completely? +

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

browser_bounding_box 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.

KEEP EXPLORING

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