describe_ecs_regions | PolicyLayer

WHAT IT DOES

What describe_ecs_regions does on Alibaba Cloud Operations MCP Server

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

WHY IT NEEDS A POLICY

Why describe_ecs_regions needs a policy

This tool queries metadata about ECS regions—available geographical locations for services. It retrieves information without modifying, executing code, deleting data, or affecting financial operations. No side effects occur from invoking this tool.

From the tool's definition Tool name 'describe_ecs_regions' and description '查询ECS可用区域列表' (query ECS available regions list) indicate a retrieval operation.

Attacks that exploit this kind of access

Questions about describe_ecs_regions

What does the describe_ecs_regions tool do? +

查询ECS可用区域列表. It is categorised as a Read tool in the Alibaba Cloud Operations MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on describe_ecs_regions? +

Register the Alibaba Cloud Operations MCP Server MCP server in PolicyLayer and add a rule for describe_ecs_regions: 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 Alibaba Cloud Operations MCP Server. Nothing to install.

What risk level is describe_ecs_regions? +

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

Can I rate-limit describe_ecs_regions? +

Yes. Add a rate_limit block to the describe_ecs_regions 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 describe_ecs_regions completely? +

Set action: deny in the PolicyLayer policy for describe_ecs_regions. 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 describe_ecs_regions? +

describe_ecs_regions is provided by the Alibaba Cloud Operations MCP Server MCP server (radiumgu/alicloud-ops-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.