Returns a list of Timestream for InfluxDB DB instances filtered by status (case-insensitive).
AI agents call LsInstancesByStatus to retrieve information from Amazon MQ 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 and lists existing Timestream for InfluxDB instances based on status filters. It performs a read-only query operation without creating, modifying, deleting, or executing any resources. The low severity reflects minimal blast radius if misused by an agent—it only exposes informational data about instance status.
From the tool's definition Tool name 'LsInstancesByStatus' uses 'Ls' (list) prefix; description states 'Returns a list' with filtering by status—a query operation with no side effects
Attacks that exploit this kind of access
Returns a list of Timestream for InfluxDB DB instances filtered by status (case-insensitive). It is categorised as a Read tool in the Amazon MQ MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Amazon MQ MCP Server MCP server in PolicyLayer and add a rule for LsInstancesByStatus: 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 MQ MCP Server. Nothing to install.
LsInstancesByStatus 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 LsInstancesByStatus 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 LsInstancesByStatus. 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.
LsInstancesByStatus is provided by the Amazon MQ MCP Server MCP server (awslabs.amazon-mq-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.