get_nodebalancer_vpc

THE RISK

Low Risk

Why get_nodebalancer_vpc needs a policy

This tool performs a read-only query to retrieve VPC configuration details associated with a NodeBalancer. It retrieves or queries data with no side effects, matching the Read category definition.

From the tool's definition Tool name 'get_nodebalancer_vpc' with description 'Get a specific VPC configuration for a NodeBalancer' indicates retrieval of existing configuration data without modification, deletion, or execution of operations.

Documented attack patterns abuse exactly the kind of access get_nodebalancer_vpc gives an agent:

POLICY

How to control get_nodebalancer_vpc

PolicyLayer is an MCP gateway — it sits between your AI agents and Linode MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_nodebalancer_vpc:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_nodebalancer_vpc": {}
  }
}

get_nodebalancer_vpc is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Linode MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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All 416 Linode MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_nodebalancer_vpc

What does the get_nodebalancer_vpc tool do? +

Get a specific VPC configuration for a NodeBalancer. It is categorised as a Read tool in the Linode MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_nodebalancer_vpc? +

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

What risk level is get_nodebalancer_vpc? +

get_nodebalancer_vpc is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_nodebalancer_vpc? +

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

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

get_nodebalancer_vpc is provided by the Linode MCP Server MCP server (takashito/linode-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Linode MCP Server tool call.

Start from Linode MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →