playwright_get_aria_snapshot

THE RISK

Low Risk

Why playwright_get_aria_snapshot needs a policy

This tool queries the accessibility tree of a webpage or element, returning structured data about ARIA labels, roles, and relationships. It performs no side effects, creates no data, executes no commands, and modifies nothing. It is purely informational retrieval, fitting the Read category. Severity is low because accessibility tree snapshots are non-sensitive metadata already exposed by browser APIs.

From the tool's definition Tool name contains 'get' and description states 'Get ARIA accessibility tree snapshot' — retrieves page/element state without modification.

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

POLICY

How to control playwright_get_aria_snapshot

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

policy.json

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

playwright_get_aria_snapshot 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 RunAutomation MCP Server — 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

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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 playwright_get_aria_snapshot

What does the playwright_get_aria_snapshot tool do? +

Get ARIA accessibility tree snapshot of the page or element. It is categorised as a Read tool in the RunAutomation MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on playwright_get_aria_snapshot? +

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

What risk level is playwright_get_aria_snapshot? +

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

Can I rate-limit playwright_get_aria_snapshot? +

Yes. Add a rate_limit block to the playwright_get_aria_snapshot 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_get_aria_snapshot completely? +

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

playwright_get_aria_snapshot is provided by the RunAutomation MCP Server MCP server (tayyabakmal1/runautomation-mcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every RunAutomation MCP Server tool call.

Start from RunAutomation MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →