waf_set_paranoia · WAF MCP Server MCP: Risk & Policy

WHAT IT DOES

What waf_set_paranoia does on WAF MCP Server

AI agents use waf_set_paranoia to create or update resources in WAF MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your WAF MCP Server environment.

WHY IT NEEDS A POLICY

Why waf_set_paranoia needs a policy

This tool modifies the WAF's global security configuration by changing the CRS paranoia level. It is reversible (can be set back to a different level), placing it in Write rather than Destructive.

From the tool's definition Set CRS paranoia level (1-4). Level 1 is minimal rules, level 4 is maximum security with more false positives.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

waf_set_paranoia Rate-limited

waf_set_paranoia stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "waf_set_paranoia": {
      "limits": [
        {
          "counter": "waf_set_paranoia_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about waf_set_paranoia

What does the waf_set_paranoia tool do? +

Set CRS paranoia level (1-4). Level 1 is minimal rules, level 4 is maximum security with more false positives. It is categorised as a Write tool in the WAF MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on waf_set_paranoia? +

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

What risk level is waf_set_paranoia? +

waf_set_paranoia is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit waf_set_paranoia? +

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

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

waf_set_paranoia is provided by the WAF MCP Server MCP server (kratosuae/waf_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.