gateway_list
AI agents call gateway_list 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.
Amazon MQ gateway_list most likely retrieves or enumerates gateway information without modifying state. The lack of description reduces confidence, but the naming convention strongly indicates a read operation consistent with inventory or status queries. No evidence of side effects, deletions, financial transactions, or code execution.
From the tool's definition Tool name 'gateway_list' suggests a list/query operation typical of Read category tools. The empty description prevents full confirmation, but 'list' operations are characteristically non-mutative data retrieval.
Attacks that exploit this kind of access
gateway_list. 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 gateway_list: 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.
gateway_list 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 gateway_list 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 gateway_list. 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.
gateway_list 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.