find_underutilized_ec2_instances
AI agents call find_underutilized_ec2_instances 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 appears to query/list EC2 instances filtered by utilization criteria and report findings. It has no side effects—it does not modify, delete, or execute operations on instances. The 'find_' prefix and context within a FinOps optimization suite indicates it returns data for analysis rather than taking action.
From the tool's definition Tool name 'find_underutilized_ec2_instances' indicates a discovery/query operation that retrieves information about EC2 instances based on utilization metrics.
Attacks that exploit this kind of access
find_underutilized_ec2_instances. 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_underutilized_ec2_instances: 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_underutilized_ec2_instances 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_underutilized_ec2_instances 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_underutilized_ec2_instances. 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_underutilized_ec2_instances 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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