describe_services
AI agents call describe_services 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 tool follows AWS naming conventions for read operations (describe_*). It retrieves information about ElastiCache/MemoryDB Valkey services without modifying data. No side effects or dangerous operations are indicated. The empty description introduces some uncertainty, but the conventional 'describe' prefix strongly suggests a read-only classification.
From the tool's definition Tool name 'describe_services' indicates a read-only query operation that retrieves service metadata. The empty description limits evidence, but 'describe' is a standard AWS API verb for retrieving resource information without modification.
Attacks that exploit this kind of access
describe_services. 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_services: 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_services 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_services 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_services. 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_services 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.