get-billing-group-cost-report
AI agents call get-billing-group-cost-report 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 tool retrieves cost report data associated with a billing group, which is a read operation with no side effects on data modification. Severity is medium rather than low because cost/billing data is sensitive financial information that could reveal business intelligence, pricing strategies, or operational metrics if leaked to an unauthorized agent.
From the tool's definition Tool name 'get-billing-group-cost-report' indicates retrieval of billing/cost data; description is empty but function signature strongly suggests a query operation that retrieves pre-computed or aggregated billing reports.
Attacks that exploit this kind of access
get-billing-group-cost-report. 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 get-billing-group-cost-report: 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.
get-billing-group-cost-report 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-billing-group-cost-report 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-billing-group-cost-report. 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-billing-group-cost-report 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.