poll_job

THE RISK

Low Risk

Why poll_job needs a policy

This tool retrieves status information about an asynchronous job without creating, modifying, deleting, executing, or committing any resources. It is purely informational, making it a Read category tool with low severity since status queries have no side effects and minimal blast radius.

From the tool's definition Tool description explicitly states 'Get current status' with no modification or execution capabilities. Polling for job status is a read-only query operation.

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

POLICY

How to control poll_job

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

policy.json

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

poll_job 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 Web Scraper — 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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All 62 Web Scraper tools →

Read tools on other servers

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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 poll_job

What does the poll_job tool do? +

Get current status of a job started by start_job. It is categorised as a Read tool in the Web Scraper MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on poll_job? +

Register the Web Scraper MCP server in PolicyLayer and add a rule for poll_job: 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 Web Scraper. Nothing to install.

What risk level is poll_job? +

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

Can I rate-limit poll_job? +

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

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

poll_job is provided by the Web Scraper MCP server (imyourboyroy/webscrapertoolkit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Web Scraper tool call.

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

CHECK YOUR STACK →