[DESTRUCTIVE] Permanently deletes 3CX users by their numeric Ids. Cannot be undone. Get Ids from get_user or list_users first. Accepts an array to delete multiple users at once.
AI agents call delete_user to permanently remove resources in 3CX MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently and irreversibly deletes user accounts from the 3CX system. There is no recovery mechanism. The ability to delete multiple users at once via array input amplifies the blast radius. An AI agent with misguided instructions could disable or remove critical business users, paralyzing phone system operations. This is the most severe category of risk.
From the tool's definition Tool description explicitly states '[DESTRUCTIVE] Permanently deletes 3CX users by their numeric Ids. Cannot be undone.' The name 'delete_user' combined with 'Permanently deletes' and 'Cannot be undone' clearly indicates irreversible data destruction.
Attacks that exploit this kind of access
[DESTRUCTIVE] Permanently deletes 3CX users by their numeric Ids. Cannot be undone. Get Ids from get_user or list_users first. Accepts an array to delete multiple users at once. It is categorised as a Destructive tool in the 3CX MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the 3CX MCP Server MCP server in PolicyLayer and add a rule for delete_user: 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 3CX MCP Server. Nothing to install.
delete_user 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 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. 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 is provided by the 3CX MCP Server MCP server (ssig-it/3cx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
delete_user is one line of 3CX MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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