get_promql_series
AI agents call get_promql_series to retrieve information from Amazon ElastiCache Memcached MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to retrieve metrics data from Prometheus without modifying state. The 'get_' prefix is characteristic of read operations. The empty description reduces confidence slightly, but the naming convention and PromQL context (typically used for querying metrics, not writing or deleting) support classification as a Read operation with low blast radius if misused.
From the tool's definition Tool name 'get_promql_series' indicates querying or retrieving time-series data via PrometheusQL; the empty description limits certainty but the 'get_' prefix and PromQL context suggest a read-only retrieval operation.
Attacks that exploit this kind of access
get_promql_series. It is categorised as a Read tool in the Amazon ElastiCache Memcached MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Amazon ElastiCache Memcached MCP Server MCP server in PolicyLayer and add a rule for get_promql_series: 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 ElastiCache Memcached MCP Server. Nothing to install.
get_promql_series 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 get_promql_series 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 get_promql_series. 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.
get_promql_series is provided by the Amazon ElastiCache Memcached MCP Server MCP server (awslabs.memcached-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.