This record as markdown: /tools/abl030-pfsense-mcp/pfsense-update-status-carp.md
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 pfsense_update_status_carp is rated High
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
The rule that runs pfsense_update_status_carp safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Pfsense, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For pfsense_update_status_carp, this is the rule to start with:
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.
The button opens the PolicyLayer dashboard: create your workspace, connect Pfsense, apply this rule, and every pfsense_update_status_carp call is checked against it from then on.
Questions about pfsense_update_status_carp
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.
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.
pfsense_update_status_carp is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
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.
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.
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.
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