查询RDS实例列表
AI agents call describe_rds_instances 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.
This tool performs a describe/query operation on RDS instances, retrieving instance metadata and status information. The verb 'describe' and the word '查询' (query) clearly indicate read-only data retrieval with no side effects. No data is created, modified, deleted, or financial operations are involved. The blast radius is minimal since an AI agent can only view existing RDS instance information.
From the tool's definition Tool name 'describe_rds_instances' and description '查询RDS实例列表' (query RDS instance list) indicate a read-only operation that retrieves information about RDS database instances without modifying or deleting any data.
Attacks that exploit this kind of access
查询RDS实例列表. It is categorised as a Read tool in the Alibaba Cloud Operations MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Alibaba Cloud Operations MCP Server MCP server in PolicyLayer and add a rule for describe_rds_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 Alibaba Cloud Operations MCP Server. Nothing to install.
describe_rds_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 describe_rds_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 describe_rds_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.
describe_rds_instances 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.
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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