AI agents call list_nodebalancers to retrieve information from Linode MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query to retrieve NodeBalancer resources. It has no side effects, does not execute code or commands, does not modify data, and does not delete or move resources. The blast radius of misuse is minimal—an AI agent could only view existing NodeBalancer configurations, which is a standard read operation on cloud infrastructure inventory.
From the tool's definition Tool name 'list_nodebalancers' and description 'Get a list of all NodeBalancers' indicate a retrieval operation with no modification or execution of infrastructure.
Documented attack patterns abuse exactly the kind of access list_nodebalancers gives an agent:
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 list_nodebalancers:
{
"version": "1",
"default": "deny",
"tools": {
"list_nodebalancers": {}
}
}list_nodebalancers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get a list of all NodeBalancers. 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_nodebalancers: 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_nodebalancers 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_nodebalancers 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_nodebalancers. 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_nodebalancers 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.
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.
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416 Linode MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.