get_roles_for_service

WHAT IT DOES

What get_roles_for_service does on Amazon ElastiCache Memcached MCP Server

AI agents call get_roles_for_service 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.

WHY IT NEEDS A POLICY

Why get_roles_for_service needs a policy

This tool retrieves IAM role information for a given service, which is a read-only query with no side effects. It returns metadata about existing roles without creating, modifying, or deleting resources. The blast radius is low—misuse would only expose information about role associations, not alter infrastructure or permissions.

From the tool's definition Tool name 'get_roles_for_service' indicates a retrieval operation without modification. The verb 'get' is a read-only operation that queries existing data (AWS IAM roles associated with a service).

Attacks that exploit this kind of access

Questions about get_roles_for_service

What does the get_roles_for_service tool do? +

get_roles_for_service. It is categorised as a Read tool in the Amazon ElastiCache Memcached MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_roles_for_service? +

Register the Amazon ElastiCache Memcached MCP Server MCP server in PolicyLayer and add a rule for get_roles_for_service: 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.

What risk level is get_roles_for_service? +

get_roles_for_service is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_roles_for_service? +

Yes. Add a rate_limit block to the get_roles_for_service 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.

How do I block get_roles_for_service completely? +

Set action: deny in the PolicyLayer policy for get_roles_for_service. 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.

What MCP server provides get_roles_for_service? +

get_roles_for_service 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.