GetSupportedFileTypes
AI agents call GetSupportedFileTypes 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 appears to fetch or list supported file types, which is a read operation with no side effects. No data is modified, deleted, or executed. The empty description reduces confidence slightly, but the semantics of 'Get' + 'SupportedFileTypes' clearly indicate a retrieval/query function typical of Read category operations.
From the tool's definition Tool name 'GetSupportedFileTypes' indicates a query operation that retrieves information about supported file types. The description is empty, which limits confidence, but the naming convention strongly suggests a read-only retrieval of metadata.
Attacks that exploit this kind of access
GetSupportedFileTypes. 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 GetSupportedFileTypes: 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.
GetSupportedFileTypes 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 GetSupportedFileTypes 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 GetSupportedFileTypes. 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.
GetSupportedFileTypes 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.