Get random field(s) with their values from hash.
AI agents call hash_random_field_with_values 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.
This tool retrieves random fields and their values from a Memcached hash. The use of 'Get' and 'with their values' (read-only access pattern) confirms it performs a query/retrieval operation with no side effects. No data is created, modified, deleted, or code executed. This is a straightforward Read operation on cached data.
From the tool's definition Tool name 'hash_random_field_with_values' and description 'Get random field(s) with their values from hash' indicate a retrieval operation that queries data from a Memcached hash without modification.
Attacks that exploit this kind of access
Get random field(s) with their values from hash. 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 hash_random_field_with_values: 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.
hash_random_field_with_values 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 hash_random_field_with_values 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 hash_random_field_with_values. 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.
hash_random_field_with_values 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.