browser_set_viewport

A execute tool on the MCP Framework Personal MCP server.

SERVERMCP Framework Personal SOURCEinggerman/mcps

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/inggerman-mcps/browser-set-viewport.md

WHAT IT DOES

What browser_set_viewport does on MCP Framework Personal

AI agents invoke browser_set_viewport to trigger actions in MCP Framework Personal. 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.

RISK

Why browser_set_viewport is rated High

The name suggests this tool controls browser viewport settings, which is a browser action/operation. In the context of an MCP framework with browser capabilities, setting the viewport is an Execute-category action as it manipulates browser state. However, the empty description lowers confidence significantly.

From the tool's definition Tool name 'browser_set_viewport' — no description provided

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs browser_set_viewport safely

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

browser_set_viewport Rate-limited

browser_set_viewport 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": {
    "browser_set_viewport": {
      "limits": [
        {
          "counter": "browser_set_viewport_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect MCP Framework Personal, apply this rule, and every browser_set_viewport call is checked against it from then on.

FAQ

Questions about browser_set_viewport

What does the browser_set_viewport tool do? +

browser_set_viewport is a execute tool on the MCP Framework Personal MCP server. It is categorised as a Execute tool in the MCP Framework Personal 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_set_viewport? +

Register the MCP Framework Personal MCP server in PolicyLayer and add a rule for browser_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 Framework Personal. Nothing to install.

What risk level is browser_set_viewport? +

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

Can I rate-limit browser_set_viewport? +

Yes. Add a rate_limit block to the browser_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 browser_set_viewport completely? +

Set action: deny in the PolicyLayer policy for browser_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 browser_set_viewport? +

browser_set_viewport is provided by the MCP Framework Personal MCP server (inggerman/mcps). 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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