describe_hp_cluster
AI agents call describe_hp_cluster 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 'describe_*' naming convention in AWS APIs universally indicates read-only retrieval of resource metadata with no side effects. This tool appears to fetch information about a HighPerformance (hp) cluster, likely returning configuration, status, or other metadata. Despite the missing description, the semantic meaning of 'describe' strongly suggests a Read operation with minimal blast radius if misused by an agent.
From the tool's definition The tool name 'describe_hp_cluster' indicates retrieval of cluster information via 'describe' verb, a common pattern for querying infrastructure metadata.
Attacks that exploit this kind of access
describe_hp_cluster. 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 describe_hp_cluster: 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.
describe_hp_cluster 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_hp_cluster 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_hp_cluster. 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_hp_cluster 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.