sorted_set_range_by_score
AI agents call sorted_set_range_by_score 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 name implies a range query on a sorted set by score (analogous to ZRANGEBYSCORE in Redis), which is a read operation. However, the empty description lowers confidence. No evidence of write, execute, destructive, or financial behavior. Severity is medium given it operates on a cache/data store and could expose sensitive cached data if misused.
From the tool's definition Tool name 'sorted_set_range_by_score' suggests a read/query operation retrieving elements from a sorted set within a score range, common in Redis/Memcached-style datastores. Description is empty.
Attacks that exploit this kind of access
sorted_set_range_by_score. 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 sorted_set_range_by_score: 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.
sorted_set_range_by_score 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 sorted_set_range_by_score 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 sorted_set_range_by_score. 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.
sorted_set_range_by_score 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.