describe-serverless-caches
AI agents call describe-serverless-caches to retrieve information from AWS IoT SiteWise MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'describe' prefix indicates this tool queries and retrieves information about serverless caches without executing code, modifying data, or triggering operational changes. No side effects are implied. Confidence is 0.8 rather than higher due to the empty description, which prevents direct confirmation of function scope, but the verb 'describe' is a strong signal of Read-category operations in AWS APIs.
From the tool's definition Tool name 'describe-serverless-caches' follows AWS API naming convention for Read operations (describe/get/list verbs retrieve information without modification).
Attacks that exploit this kind of access
describe-serverless-caches. It is categorised as a Read tool in the AWS IoT SiteWise MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AWS IoT SiteWise MCP Server MCP server in PolicyLayer and add a rule for describe-serverless-caches: 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 AWS IoT SiteWise MCP Server. Nothing to install.
describe-serverless-caches 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 describe-serverless-caches 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 describe-serverless-caches. 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.
describe-serverless-caches is provided by the AWS IoT SiteWise MCP Server MCP server (awslabs.aws-iot-sitewise-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.