page_set_viewport

A write tool on the Mcp Anything MCP server.

SERVERMcp Anything SOURCEZaymadkid/mcp-anything

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mcp-anything/page-set-viewport.md

WHAT IT DOES

What page_set_viewport does on Mcp Anything

AI agents use page_set_viewport to create or update resources in Mcp Anything, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Anything environment.

RISK

Why page_set_viewport is rated Medium

Based on the name alone, 'page_set_viewport' likely sets the viewport dimensions of a page (browser or rendering context), which is a configuration/write operation with no destructive or financial implications. However, the empty description significantly lowers confidence. It could be part of a browser automation context given sibling tools, making it a Write action that modifies page state reversibly.

From the tool's definition Tool name 'page_set_viewport' — description is empty and uninformative.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs page_set_viewport safely

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

page_set_viewport Rate-limited

page_set_viewport stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "page_set_viewport": {
      "limits": [
        {
          "counter": "page_set_viewport_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Anything, apply this rule, and every page_set_viewport call is checked against it from then on.

FAQ

Questions about page_set_viewport

What does the page_set_viewport tool do? +

page_set_viewport is a write tool on the Mcp Anything MCP server. It is categorised as a Write tool in the Mcp Anything MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on page_set_viewport? +

Register the Mcp Anything MCP server in PolicyLayer and add a rule for page_set_viewport: 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 Mcp Anything. Nothing to install.

What risk level is page_set_viewport? +

page_set_viewport is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit page_set_viewport? +

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

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

page_set_viewport is provided by the Mcp Anything MCP server (Zaymadkid/mcp-anything). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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