GetSupportedFileTypes
AI agents call GetSupportedFileTypes 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.
This tool retrieves information about supported file types without modifying data or triggering external operations. Even if misused by an agent, the worst outcome would be receiving information about file type support, which poses minimal risk. The empty description lowers confidence slightly, but the clear semantic meaning of the name supports Read categorization.
From the tool's definition Tool name 'GetSupportedFileTypes' indicates a retrieval operation with no modification of state. The description is empty, providing no additional context, but the naming convention strongly suggests a query for metadata about supported file types.
Attacks that exploit this kind of access
GetSupportedFileTypes. 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 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 AWS IoT SiteWise 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 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.