arjun_params · Redteam MCP: Risk & Policy

WHAT IT DOES

What arjun_params does on Redteam

AI agents invoke arjun_params to trigger actions in Redteam. 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 arjun_params needs a policy

This tool actively probes and fuzzes a web endpoint to discover hidden parameters, which constitutes executing external network operations against a target system. It is part of a penetration testing toolkit running inside Kali Linux, making it an active reconnaissance/attack tool. The blast radius is high as it can be used to identify attack surfaces on systems without authorization.

From the tool's definition Discover hidden HTTP GET/POST parameters on a web endpoint

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

arjun_params Rate-limited

arjun_params 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": {
    "arjun_params": {
      "limits": [
        {
          "counter": "arjun_params_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 Redteam, so you can run agents against it safely.

FAQ

Questions about arjun_params

What does the arjun_params tool do? +

Discover hidden HTTP GET/POST parameters on a web endpoint. It is categorised as a Execute tool in the Redteam MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on arjun_params? +

Register the Redteam MCP server in PolicyLayer and add a rule for arjun_params: 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 Redteam. Nothing to install.

What risk level is arjun_params? +

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

Can I rate-limit arjun_params? +

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

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

arjun_params is provided by the Redteam MCP server (samirjani03/redteam-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.