Returns a Timestream for InfluxDB DB instance details by the instance-identifier
AI agents call GetDbInstance to retrieve information from Amazon ElastiCache Memcached MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves database instance information without modifying, deleting, or executing operations. It is a straightforward read operation with no side effects. The severity is low because exposure of instance metadata carries minimal risk compared to write, execute, or destructive operations. The blast radius is limited to information disclosure of non-sensitive infrastructure metadata.
From the tool's definition Tool name 'GetDbInstance' and description 'Returns a Timestream for InfluxDB DB instance details by the instance-identifier' indicate a query/retrieval operation that fetches metadata about a database instance.
Attacks that exploit this kind of access
Returns a Timestream for InfluxDB DB instance details by the instance-identifier. It is categorised as a Read tool in the Amazon ElastiCache Memcached MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Amazon ElastiCache Memcached MCP Server MCP server in PolicyLayer and add a rule for GetDbInstance: 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 Amazon ElastiCache Memcached MCP Server. Nothing to install.
GetDbInstance 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 GetDbInstance 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 GetDbInstance. 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.
GetDbInstance is provided by the Amazon ElastiCache Memcached MCP Server MCP server (awslabs.memcached-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.