Retrieves Reserved Instance (RI) utilization percentages.
AI agents call get_reservation_utilization to retrieve information from AWS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries AWS Reserved Instance utilization metrics, which are static observational data about existing infrastructure. It performs no create, modify, delete, execute, or financial operations. Even in a context of misuse by an AI agent, the worst outcome would be information disclosure of non-sensitive utilization percentages that are typically accessible to authorized users managing their own reservations.
From the tool's definition Tool retrieves Reserved Instance (RI) utilization percentages with no modification capability. The server description emphasizes it is 'read-only' and provides 'secure, AI-ready access to AWS infrastructure data.' The verb 'retrieves' and the specific…
Attacks that exploit this kind of access
Retrieves Reserved Instance (RI) utilization percentages. It is categorised as a Read tool in the AWS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AWS MCP Server MCP server in PolicyLayer and add a rule for get_reservation_utilization: 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 MCP Server. Nothing to install.
get_reservation_utilization 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 get_reservation_utilization 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 get_reservation_utilization. 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.
get_reservation_utilization is provided by the AWS MCP Server MCP server (sergiosediq/aws-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_reservation_utilization is one line of AWS MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →