katana_crawl · Katana MCP Server MCP: Risk & Policy

WHAT IT DOES

What katana_crawl does on Katana MCP Server

AI agents invoke katana_crawl to trigger actions in Katana MCP Server. 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 katana_crawl needs a policy

This tool executes the Katana web crawler against external targets. It runs an external process/tool that makes network requests to third-party systems, performs reconnaissance, and discovers endpoints. The effects depend on the target URLs provided. This is an active operation against external systems, making it Execute.

From the tool's definition 'Chạy Katana để crawl một URL hoặc danh sách URLs' (Run Katana to crawl a URL or list of URLs) — triggers an external web crawling operation against target systems

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

katana_crawl Rate-limited

katana_crawl 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": {
    "katana_crawl": {
      "limits": [
        {
          "counter": "katana_crawl_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 Katana MCP Server, so you can run agents against it safely.

FAQ

Questions about katana_crawl

What does the katana_crawl tool do? +

Chạy Katana để crawl một URL hoặc danh sách URLs. Trả về các URLs, endpoints, và thông tin được phát hiện. It is categorised as a Execute tool in the Katana MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on katana_crawl? +

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

What risk level is katana_crawl? +

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

Can I rate-limit katana_crawl? +

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

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

katana_crawl is provided by the Katana MCP Server MCP server (ngothienan/katana-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.