puppeteer_screenshot

THE RISK

Low Risk

Why puppeteer_screenshot needs a policy

This tool captures a visual snapshot of a web page or element. It only reads/captures the current state of the browser without modifying any data or triggering external operations. It is a passive observation action with minimal blast radius.

From the tool's definition Take a screenshot of the current page or a specific element

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

POLICY

How to control puppeteer_screenshot

PolicyLayer is an MCP gateway — it sits between your AI agents and Puppeteer+ MarTech, and nothing reaches the server without passing your rules. This is the rule we recommend for puppeteer_screenshot:

policy.json

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

puppeteer_screenshot is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Puppeteer+ MarTech — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Puppeteer+ MarTech tools

Execute parse-analytics-beacons Capture and parse Adobe Analytics and Experience Platform beacons on a webpage Execute puppeteer_navigate Navigate to a URL Read analyze-analytics-platforms Deep dive into analytics platforms (GA4, UA, Adobe Analytics, etc.) on a webpage Read audit-image-alt-text Audit image alt text on a webpage for accessibility and SEO compliance Read audit-seo Analyze SEO metadata and structure on a webpage Read check-page-metadata Analyze meta tags, titles, and descriptions on a webpage Read detect-ad-pixels Focus on advertising platforms (Facebook, TikTok, etc.) on a webpage Read evaluate-page-structure Analyze URL structure, headings hierarchy, and page organization

All 16 Puppeteer+ MarTech tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about puppeteer_screenshot

What does the puppeteer_screenshot tool do? +

Take a screenshot of the current page or a specific element. It is categorised as a Read tool in the Puppeteer+ MarTech MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on puppeteer_screenshot? +

Register the Puppeteer+ MarTech MCP server in PolicyLayer and add a rule for puppeteer_screenshot: 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 Puppeteer+ MarTech. Nothing to install.

What risk level is puppeteer_screenshot? +

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

Can I rate-limit puppeteer_screenshot? +

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

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

puppeteer_screenshot is provided by the Puppeteer+ MarTech MCP server (moonbirdai/puppeteer-plus-martech-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Puppeteer+ MarTech tool call.

Start from Puppeteer+ MarTech, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →