find_asgs_with_old_amis
AI agents call find_asgs_with_old_amis 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 or list AWS Auto Scaling Groups based on AMI age criteria—a read-only assessment activity. The empty description reduces confidence slightly, but the consistent naming convention across sibling read tools and the absence of mutation/execution keywords support classification as Read with low severity. Finding outdated resources has minimal blast radius if misused by an AI agent.
From the tool's definition Tool name 'find_asgs_with_old_amis' indicates a search/discovery operation ('find') across Auto Scaling Groups (ASGs) to identify those using outdated AMIs.
Attacks that exploit this kind of access
find_asgs_with_old_amis. 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_asgs_with_old_amis: 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_asgs_with_old_amis 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_asgs_with_old_amis 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_asgs_with_old_amis. 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_asgs_with_old_amis 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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