Delete a relationship in the connected Power BI Desktop model (TOM), identified by name or by from/to table (and optionally column). Honors an open tom transaction.
AI agents call delete_relationship to permanently remove resources in Power BI MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently deletes relationships from a Power BI model, which is an irreversible data structure modification. While it does not delete actual data rows, it destructively modifies the model schema in a way that cannot be undone without manual restoration. This fits the Destructive category (actions that cannot be undone) more severely than Write (reversible modifications).
From the tool's definition Tool name is 'delete_relationship' and description states 'Delete a relationship in the connected Power BI Desktop model'. The verb 'Delete' combined with modification of model structure (relationships) is an irreversible action.
Attacks that exploit this kind of access
Delete a relationship in the connected Power BI Desktop model (TOM), identified by name or by from/to table (and optionally column). Honors an open tom transaction. It is categorised as a Destructive tool in the Power BI MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Power BI MCP Server MCP server in PolicyLayer and add a rule for delete_relationship: 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 Power BI MCP Server. Nothing to install.
delete_relationship 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_relationship 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_relationship. 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_relationship is provided by the Power BI MCP Server MCP server (sulaiman013/powerbi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.