Find EC2 instances using previous generation instance types.
AI agents call find_ec2_instances_with_old_generations 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This tool performs discovery and analysis of EC2 instances to identify those using outdated generation types. It is a read-only operation that queries cloud resources for reporting and optimization recommendations. No data is modified, deleted, or financial transactions are involved.
From the tool's definition Tool name 'find_ec2_instances_with_old_generations' and description 'Find EC2 instances using previous generation instance types' indicate a query/discovery operation that retrieves information about existing infrastructure without modifying, deleting, or…
Attacks that exploit this kind of access
Find EC2 instances using previous generation instance types. 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_ec2_instances_with_old_generations: 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_ec2_instances_with_old_generations 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_ec2_instances_with_old_generations 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_ec2_instances_with_old_generations. 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_ec2_instances_with_old_generations 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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