Create an Ethernet Network Group Policy (VLAN group) for vNICs
AI agents use create_vlan_group to create or update resources in Intersight MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Intersight MCP Server environment.
This tool creates new network configuration objects (VLAN groups/Ethernet Network Group Policies) which modifies the data center infrastructure state. Creation is reversible through deletion, so it falls under Write rather than Destructive.
From the tool's definition Tool name 'create_vlan_group' and description 'Create an Ethernet Network Group Policy (VLAN group)' explicitly indicate irreversible creation of network configuration objects. The action creates new VLAN group policies that will persist in the infrastructure.
Documented attack patterns abuse exactly the kind of access create_vlan_group gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Intersight MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create_vlan_group:
{
"version": "1",
"default": "deny",
"tools": {
"create_vlan_group": {
"limits": [
{
"counter": "create_vlan_group_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_vlan_group 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.
Free to start. No card required.
Create an Ethernet Network Group Policy (VLAN group) for vNICs. It is categorised as a Write tool in the Intersight MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Intersight MCP Server MCP server in PolicyLayer and add a rule for create_vlan_group: 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 Intersight MCP Server. Nothing to install.
create_vlan_group 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 create_vlan_group 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 create_vlan_group. 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.
create_vlan_group is provided by the Intersight MCP Server MCP server (jim-coyne/intersight_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Intersight MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
198 Intersight MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.