hakrawler_crawl · Bug Bounty MCP Server MCP: Risk & Policy

WHAT IT DOES

What hakrawler_crawl does on Bug Bounty MCP Server

AI agents invoke hakrawler_crawl to trigger actions in Bug Bounty 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 hakrawler_crawl needs a policy

Hakrawler is a well-known web crawling/reconnaissance tool used in bug bounty hunting. The tool likely executes the hakrawler binary against a target URL, performing active web crawling which constitutes an external operation. The empty description lowers confidence, but the tool name and server context strongly suggest active execution against external targets.

From the tool's definition Tool name 'hakrawler_crawl' suggests running the hakrawler web crawler tool against a target; server description mentions reconnaissance and vulnerability testing workflows

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

hakrawler_crawl Rate-limited

hakrawler_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": {
    "hakrawler_crawl": {
      "limits": [
        {
          "counter": "hakrawler_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 Bug Bounty MCP Server, so you can run agents against it safely.

FAQ

Questions about hakrawler_crawl

What does the hakrawler_crawl tool do? +

hakrawler_crawl. It is categorised as a Execute tool in the Bug Bounty 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 hakrawler_crawl? +

Register the Bug Bounty MCP Server MCP server in PolicyLayer and add a rule for hakrawler_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 Bug Bounty MCP Server. Nothing to install.

What risk level is hakrawler_crawl? +

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

Can I rate-limit hakrawler_crawl? +

Yes. Add a rate_limit block to the hakrawler_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 hakrawler_crawl completely? +

Set action: deny in the PolicyLayer policy for hakrawler_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 hakrawler_crawl? +

hakrawler_crawl is provided by the Bug Bounty MCP Server MCP server (slanycukr/bugbounty-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.