list_pages

A read tool on the Playwright MCP server.

SERVERPlaywright MCP Server SOURCEalexrwilliam/playwright-mcp-server

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/alexrwilliam-playwright-mcp-server/list-pages.md

WHAT IT DOES

What list_pages does on Playwright MCP Server

AI agents call list_pages to retrieve information from Playwright MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_pages is rated Low

Listing pages is a read-only operation that retrieves information about existing browser pages with no side effects, state modification, or capability to affect external systems. While Playwright is a powerful automation tool, this specific function is purely informational—comparable to querying a list of resources.

From the tool's definition Tool name 'list_pages' and its placement among Playwright browser automation tools indicates a querying/listing function. The description is empty, but the name strongly suggests retrieving a list of open browser pages without modifying state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_pages safely

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

list_pages Allowed

list_pages 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": {
    "list_pages": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about list_pages

What does the list_pages tool do? +

list_pages is a read tool on the Playwright MCP Server MCP server. It is categorised as a Read tool in the Playwright MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_pages? +

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

What risk level is list_pages? +

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

Can I rate-limit list_pages? +

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

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

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

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