pfsense_update_status_carp · Pfsense MCP: Risk & Policy

WHAT IT DOES

What pfsense_update_status_carp does on Pfsense

AI agents invoke pfsense_update_status_carp to trigger actions in Pfsense. 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 pfsense_update_status_carp needs a policy

Updating CARP status can change high-availability failover behavior on a firewall, potentially disrupting network redundancy and causing service outages. While it is a PATCH (modify) operation, altering CARP status has significant operational impact on network infrastructure beyond a simple data write, making Execute the most appropriate category given the external system effect.

From the tool's definition PATCH /api/v2/status/carp — modifies CARP (Common Address Redundancy Protocol) status on a pfSense firewall

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pfsense_update_status_carp Rate-limited

pfsense_update_status_carp 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": {
    "pfsense_update_status_carp": {
      "limits": [
        {
          "counter": "pfsense_update_status_carp_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 Pfsense, so you can run agents against it safely.

FAQ

Questions about pfsense_update_status_carp

What does the pfsense_update_status_carp tool do? +

PATCH /api/v2/status/carp. It is categorised as a Execute tool in the Pfsense MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on pfsense_update_status_carp? +

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

What risk level is pfsense_update_status_carp? +

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

Can I rate-limit pfsense_update_status_carp? +

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

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

pfsense_update_status_carp is provided by the Pfsense MCP server (abl030/pfsense-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.