recrawl_url · SergeyKrin9/mcp Servers MCP: Risk & Policy

WHAT IT DOES

What recrawl_url does on SergeyKrin9/mcp Servers

AI agents invoke recrawl_url to trigger actions in SergeyKrin9/mcp Servers. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why recrawl_url needs a policy

This tool triggers an external operation (forced re-crawl by Yandex.Webmaster) on a specified URL. It doesn't merely read data or write/modify content — it actively initiates a crawl action on an external system. Misuse could exhaust the daily quota (~10/host) or trigger unwanted re-indexing, making it Execute-level with medium severity.

From the tool's definition Submit a URL for forced re-crawl. Daily quota ~10 per host

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

recrawl_url Rate-limited

recrawl_url stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "recrawl_url": {
      "limits": [
        {
          "counter": "recrawl_url_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches SergeyKrin9/mcp Servers, so you can run agents against it safely.

FAQ

Questions about recrawl_url

What does the recrawl_url tool do? +

Submit a URL for forced re-crawl. Daily quota ~10 per host (depends on SQI). It is categorised as a Execute tool in the SergeyKrin9/mcp Servers MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on recrawl_url? +

Register the SergeyKrin9/mcp Servers MCP server in PolicyLayer and add a rule for recrawl_url: 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 SergeyKrin9/mcp Servers. Nothing to install.

What risk level is recrawl_url? +

recrawl_url is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit recrawl_url? +

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

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

recrawl_url is provided by the SergeyKrin9/mcp Servers MCP server (sergeykrin9/mcp-servers). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.