get_policies_for_role
AI agents call get_policies_for_role to retrieve information from Awslabs Valkey without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name contains the verb 'get', which is a classic Read operation pattern. Given the context of an AWS-related MCP server and the sibling tools that include policy management functions (add_inline_policy, add_user_to_group), this tool retrieves policy data without modifying it. While the description is empty, the name itself provides sufficient evidence of a read-only operation.
From the tool's definition Tool name 'get_policies_for_role' indicates a retrieval operation that queries policies associated with an IAM role. The function signature and purpose align with read-only data retrieval with no modification or deletion.
Attacks that exploit this kind of access
get_policies_for_role. It is categorised as a Read tool in the Awslabs Valkey MCP Server, which means it retrieves data without modifying state.
Register the Awslabs Valkey MCP server in PolicyLayer and add a rule for get_policies_for_role: 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 Awslabs Valkey. Nothing to install.
get_policies_for_role 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_policies_for_role 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_policies_for_role. 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_policies_for_role is provided by the Awslabs Valkey MCP server (awslabs.valkey-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.