playwright_close · Playwright MCP Server for Security MCP

WHAT IT DOES

What playwright_close does on Playwright MCP Server for Security

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

WHY IT NEEDS A POLICY

Why playwright_close needs a policy

An AI agent can call playwright_close faster than any human can review — one bad instruction and it creates or modifies resources in Playwright MCP Server for Security by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

playwright_close Rate-limited

playwright_close 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": {
    "playwright_close": {
      "limits": [
        {
          "counter": "playwright_close_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Playwright MCP Server for Security, so you can run agents against it safely.

FAQ

Questions about playwright_close

What does the playwright_close tool do? +

Close the browser and release all resources. It is categorised as a Write tool in the Playwright MCP Server for Security MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on playwright_close? +

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

What risk level is playwright_close? +

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

Can I rate-limit playwright_close? +

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

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

playwright_close is provided by the Playwright MCP Server for Security MCP server (o0x1024/mcp-playwright-security). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

playwright_close is one line of Playwright MCP Server for Security's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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