AI agents call ids_list_alerts to retrieve information from OPNSense MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays intrusion detection system alerts without creating, modifying, deleting, or executing any actions. It is a passive data retrieval operation with no side effects, fitting the Read category. The severity is low as it only exposes monitoring/logging information that does not directly impact system functionality or security posture if misused.
From the tool's definition Tool name 'ids_list_alerts' and description 'List recent IDS alerts' indicate a read-only query operation that retrieves alert data without modifying system state.
Documented attack patterns abuse exactly the kind of access ids_list_alerts gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OPNSense MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ids_list_alerts:
{
"version": "1",
"default": "deny",
"tools": {
"ids_list_alerts": {}
}
}ids_list_alerts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List recent IDS alerts. It is categorised as a Read tool in the OPNSense MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OPNSense MCP Server MCP server in PolicyLayer and add a rule for ids_list_alerts: 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 OPNSense MCP Server. Nothing to install.
ids_list_alerts 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 ids_list_alerts 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 ids_list_alerts. 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.
ids_list_alerts is provided by the OPNSense MCP Server MCP server (vespo92/opnsensemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 196 OPNSense MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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196 OPNSense MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.