list_nodebalancer_vpcs
List VPC configurations for a NodeBalancer
This record as markdown: /tools/takashito-linode-mcp-server/list-nodebalancer-vpcs.md
What list_nodebalancer_vpcs does on Linode MCP Server
AI agents call list_nodebalancer_vpcs to retrieve information from Linode MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_nodebalancer_vpcs is rated Low
This tool queries and returns existing VPC configurations associated with a NodeBalancer. It performs read-only data retrieval without modifying, deleting, or executing operations. The blast radius of misuse is minimal as it only exposes configuration information already known to the Linode account.
From the tool's definition Tool name 'list_nodebalancer_vpcs' uses the verb 'list', and description states 'List VPC configurations' - a retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs list_nodebalancer_vpcs safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Linode MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_nodebalancer_vpcs, this is the rule to start with:
list_nodebalancer_vpcs is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Linode MCP Server, apply this rule, and every list_nodebalancer_vpcs call is checked against it from then on.
Questions about list_nodebalancer_vpcs
List VPC configurations 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.
Register the Linode MCP Server MCP server in PolicyLayer and add a rule for list_nodebalancer_vpcs: 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.
list_nodebalancer_vpcs 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_nodebalancer_vpcs 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_nodebalancer_vpcs. 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_nodebalancer_vpcs 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.
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