Deletes all user groups
AI agents call delete-user-groups 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 irreversibly removes user groups from an Umbraco CMS instance. Deletion is a destructive operation that cannot be undone through the tool's normal operation. The scope ('all user groups') means a single invocation could eliminate all access control structures tied to group membership, making this a high-severity destructive action.
From the tool's definition Tool name is 'delete-user-groups' and description states 'Deletes all user groups'—the verb 'deletes' combined with 'all' indicates irreversible removal of data at scale.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Deletes all user groups. 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-groups: 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-groups 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-groups 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-groups. 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-groups 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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