delete_series_by_uid
AI agents call delete_series_by_uid to permanently remove resources in AWS IoT SiteWise MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool performs deletion of data series identified by UID. Deletion is irreversible and constitutes the Destructive category. Although the description is empty, the function name alone provides sufficient evidence. Severity is 'high' because unauthorized deletion of IoT sensor/time-series data could cause significant operational impact and data loss, though not direct financial harm.
From the tool's definition Tool name is 'delete_series_by_uid' which explicitly indicates deletion by unique identifier. The verb 'delete' combined with 'series_by_uid' strongly suggests irreversible removal of time-series data from AWS IoT SiteWise.
Attacks that exploit this kind of access
delete_series_by_uid. It is categorised as a Destructive tool in the AWS IoT SiteWise MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the AWS IoT SiteWise MCP Server MCP server in PolicyLayer and add a rule for delete_series_by_uid: 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.
delete_series_by_uid is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_series_by_uid 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 delete_series_by_uid. 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.
delete_series_by_uid 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.