browser_pdf_save

A write tool on the Playwright MCP server.

SERVERPlaywright MCP SOURCEalialobidm/playwright-mcp

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/alialobidm-playwright-mcp/browser-pdf-save.md

WHAT IT DOES

What browser_pdf_save does on Playwright MCP

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

RISK

Why browser_pdf_save is rated Medium

The tool creates a new PDF file, which is a reversible write operation (the file can be deleted or overwritten). It does not execute arbitrary code, delete data, or move money. However, the empty description reduces confidence slightly. Severity is medium because saved PDFs could contain sensitive data extracted from web pages, but the operation itself is reversible.

From the tool's definition Tool name 'browser_pdf_save' indicates it saves/exports content to a PDF file, a write operation that creates a new file artifact. Description is empty, limiting certainty.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs browser_pdf_save safely

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

browser_pdf_save Rate-limited

browser_pdf_save 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": {
    "browser_pdf_save": {
      "limits": [
        {
          "counter": "browser_pdf_save_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 Playwright MCP, apply this rule, and every browser_pdf_save call is checked against it from then on.

FAQ

Questions about browser_pdf_save

What does the browser_pdf_save tool do? +

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

How do I enforce a policy on browser_pdf_save? +

Register the Playwright MCP server in PolicyLayer and add a rule for browser_pdf_save: 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 Playwright MCP. Nothing to install.

What risk level is browser_pdf_save? +

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

Can I rate-limit browser_pdf_save? +

Yes. Add a rate_limit block to the browser_pdf_save 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_pdf_save completely? +

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

browser_pdf_save is provided by the Playwright MCP server (alialobidm/playwright-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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