AI agents use ids_enable_rule_set to create or update resources in OPNSense MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your OPNSense MCP Server environment.
This tool modifies firewall/IDS configuration by enabling a rule set, which changes the operational state of intrusion detection rules. This is a Write operation because it creates or modifies data reversibly—rule sets can be disabled again. It is not Destructive (no data deletion), not Execute (no arbitrary code execution; the effect is deterministic based on the rule set itself), and not Financial.
From the tool's definition Tool name 'ids_enable_rule_set' and description 'Enable a rule set' indicate a state modification action on IDS (Intrusion Detection System) configuration. The verb 'enable' modifies the active state of a rule set.
Documented attack patterns abuse exactly the kind of access ids_enable_rule_set 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_enable_rule_set:
{
"version": "1",
"default": "deny",
"tools": {
"ids_enable_rule_set": {
"limits": [
{
"counter": "ids_enable_rule_set_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}ids_enable_rule_set stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Enable a rule set. It is categorised as a Write tool in the OPNSense MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the OPNSense MCP Server MCP server in PolicyLayer and add a rule for ids_enable_rule_set: 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_enable_rule_set is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the ids_enable_rule_set 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_enable_rule_set. 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_enable_rule_set 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.
Free to start. No card required.
196 OPNSense MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.