Deletes a user group by Id
AI agents call delete-user-group to permanently remove resources in Mcp Dev — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes a user group from the Umbraco CMS system. User group deletion cannot be easily undone and affects access control and permissions across the system. This is an irreversible operation that modifies system security boundaries, warranting the Destructive category with high severity due to the potential impact on system administration and user access management.
From the tool's definition Tool name contains 'delete' and description states 'Deletes a user group by Id'. The verb 'delete' combined with the irreversible nature of removing a user group constitutes a destructive action.
Attacks that exploit this kind of access
Deletes a user group by Id. It is categorised as a Destructive tool in the Mcp Dev MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mcp Dev MCP server in PolicyLayer and add a rule for delete-user-group: 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 Mcp Dev. Nothing to install.
delete-user-group 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-user-group 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-user-group. 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-user-group is provided by the Mcp Dev MCP server (@umbraco-cms/mcp-dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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