list_aws_instances

列出所有AWS EC2实例

Server Cloud Manage MCP Server rainhan99/cloud_manage_mcp_server
Category Read
Risk class Low
Parameters 00 required

What list_aws_instances does on Cloud Manage MCP Server

AI agents call list_aws_instances to retrieve information from Cloud Manage MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why list_aws_instances needs a policy

This tool retrieves and enumerates AWS EC2 instances, which is a query/list operation that has no side effects. It does not create, modify, delete, or execute operations on instances. The blast radius of misuse is limited to information disclosure, which is a low-severity risk in isolation. The tool fits the Read category definition of retrieving or querying data with no side effects.

From the tool's definition Tool name 'list_aws_instances' and description '列出所有AWS EC2实例' (list all AWS EC2 instances) indicate data retrieval without modification or execution capabilities.

Questions about list_aws_instances

What does the list_aws_instances tool do? +

列出所有AWS EC2实例. It is categorised as a Read tool in the Cloud Manage MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_aws_instances? +

Register the Cloud Manage MCP Server MCP server in PolicyLayer and add a rule for list_aws_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 Cloud Manage MCP Server. Nothing to install.

What risk level is list_aws_instances? +

list_aws_instances is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_aws_instances? +

Yes. Add a rate_limit block to the list_aws_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.

How do I block list_aws_instances completely? +

Set action: deny in the PolicyLayer policy for list_aws_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.

What MCP server provides list_aws_instances? +

list_aws_instances is provided by the Cloud Manage MCP Server MCP server (rainhan99/cloud_manage_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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