arvan_delete_firewall_rule

Delete a firewall (WAF) rule by id.

SERVERArvanCloud MCP Server SOURCEdwin-gharibi/arvancloud-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dwin-gharibi-arvancloud-mcp/arvan-delete-firewall-rule.md

WHAT IT DOES

What arvan_delete_firewall_rule does on ArvanCloud MCP Server

AI agents call arvan_delete_firewall_rule to permanently remove resources in ArvanCloud MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why arvan_delete_firewall_rule is rated Critical

Deleting a firewall rule is a destructive action that removes security controls and cannot be reversed without recreating the rule. This has high blast radius as it could expose systems to attacks if critical WAF rules are removed. Destructive is more severe than Execute or Write, making it the appropriate category.

From the tool's definition Tool name contains 'delete' and description states 'Delete a firewall (WAF) rule by id' - this is an irreversible deletion operation that cannot be undone.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs arvan_delete_firewall_rule safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ArvanCloud MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For arvan_delete_firewall_rule, this is the rule to start with:

arvan_delete_firewall_rule Hidden

arvan_delete_firewall_rule is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "arvan_delete_firewall_rule"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ArvanCloud MCP Server, apply this rule, and every arvan_delete_firewall_rule call is checked against it from then on.

FAQ

Questions about arvan_delete_firewall_rule

What does the arvan_delete_firewall_rule tool do? +

Delete a firewall (WAF) rule by id. It is categorised as a Destructive tool in the ArvanCloud MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on arvan_delete_firewall_rule? +

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

What risk level is arvan_delete_firewall_rule? +

arvan_delete_firewall_rule is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit arvan_delete_firewall_rule? +

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

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

arvan_delete_firewall_rule is provided by the ArvanCloud MCP Server MCP server (dwin-gharibi/arvancloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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