Find Internet Gateways not attached or attached to VPCs with no resources.
AI agents call find_unused_internet_gateways to retrieve information from AWS FinOps 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 infrastructure discovery and reporting on AWS Internet Gateways. It queries existing resources to identify ones that are unused—a read-only analysis operation with no side effects. The severity is low because misuse would only expose informational data about resource utilization patterns, not cause any infrastructure damage or financial impact.
From the tool's definition Tool name 'find_unused_internet_gateways' and description 'Find Internet Gateways not attached or attached to VPCs with no resources' indicate a query/discovery operation that retrieves and analyzes existing AWS infrastructure state without making changes.
Attacks that exploit this kind of access
Find Internet Gateways not attached or attached to VPCs with no resources. It is categorised as a Read tool in the AWS FinOps MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AWS FinOps MCP Server MCP server in PolicyLayer and add a rule for find_unused_internet_gateways: 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 AWS FinOps MCP Server. Nothing to install.
find_unused_internet_gateways 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 find_unused_internet_gateways 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 find_unused_internet_gateways. 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.
find_unused_internet_gateways is provided by the AWS FinOps MCP Server MCP server (prashantgupta123/aws-pillar-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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