ListAHOReferenceStores
AI agents call ListAHOReferenceStores to retrieve information from Awslabs Valkey without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'List' prefix indicates a retrieval/query operation with no side effects, consistent with the Read category. The absence of any description makes it difficult to fully assess the tool's scope and potential impact. If this indeed lists reference stores (likely for AWS HealthOmics or a similar service), it would be a simple enumeration operation.
From the tool's definition Tool name 'ListAHOReferenceStores' follows standard list/enumerate pattern typical of Read operations. However, the description is empty, which significantly limits confidence in this classification.
Attacks that exploit this kind of access
ListAHOReferenceStores. It is categorised as a Read tool in the Awslabs Valkey MCP Server, which means it retrieves data without modifying state.
Register the Awslabs Valkey MCP server in PolicyLayer and add a rule for ListAHOReferenceStores: 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 Awslabs Valkey. Nothing to install.
ListAHOReferenceStores 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 ListAHOReferenceStores 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 ListAHOReferenceStores. 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.
ListAHOReferenceStores is provided by the Awslabs Valkey MCP server (awslabs.valkey-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.