browser_viewport_get

Get current window and viewport dimensions.

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-viewport-get.md

WHAT IT DOES

What browser_viewport_get does on Termux Browser Pilot

AI agents call browser_viewport_get 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_viewport_get is rated Low

This tool retrieves viewport metadata from the browser without modifying, executing, or affecting any state. It is a straightforward information retrieval operation analogous to a GET request. The low severity reflects minimal risk even if misused—an agent querying viewport dimensions causes no harm.

From the tool's definition Tool name 'browser_viewport_get' and description 'Get current window and viewport dimensions' indicate a read-only query operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs browser_viewport_get 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_viewport_get, this is the rule to start with:

browser_viewport_get Allowed

browser_viewport_get 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_viewport_get": {}
  }
}

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_viewport_get call is checked against it from then on.

FAQ

Questions about browser_viewport_get

What does the browser_viewport_get tool do? +

Get current window and viewport dimensions. 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_viewport_get? +

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

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

Can I rate-limit browser_viewport_get? +

Yes. Add a rate_limit block to the browser_viewport_get 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_viewport_get completely? +

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

browser_viewport_get 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.

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