AI agents call list_virtual_ips to retrieve information from Fortimanager without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Based on the tool name alone, 'list_virtual_ips' most likely retrieves or enumerates virtual IP configurations from FortiManager. This is a non-destructive read operation. However, confidence is moderate (0.75) rather than high because the description is empty and we cannot confirm the exact behavior or whether the tool has any side effects.
From the tool's definition Tool name 'list_virtual_ips' suggests a query/list operation. The 'list_' prefix is a common pattern for retrieval operations that enumerate data without modification.
Documented attack patterns abuse exactly the kind of access list_virtual_ips gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Fortimanager, and nothing reaches the server without passing your rules. This is the rule we recommend for list_virtual_ips:
{
"version": "1",
"default": "deny",
"tools": {
"list_virtual_ips": {}
}
}list_virtual_ips is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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list_virtual_ips. It is categorised as a Read tool in the Fortimanager MCP Server, which means it retrieves data without modifying state.
Register the Fortimanager MCP server in PolicyLayer and add a rule for list_virtual_ips: 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 Fortimanager. Nothing to install.
list_virtual_ips is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_virtual_ips 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 list_virtual_ips. 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.
list_virtual_ips is provided by the Fortimanager MCP server (jmpijll/fortimanager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Fortimanager, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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584 Fortimanager tools catalogued and risk-classified — across an index of 43,000+ MCP servers.