DESTRUCTIVE: Delete a hotspot voucher
AI agents call unifi_delete_voucher to permanently remove resources in UniFi Network MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deletion of vouchers cannot be undone—this is a destructive operation that permanently removes data. The description explicitly labels it as DESTRUCTIVE. While the blast radius is limited to a single hotspot voucher rather than bulk data, unauthorized deletion could disrupt legitimate guest access and hotspot operations.
From the tool's definition Tool name: unifi_delete_voucher. Description explicitly states 'DESTRUCTIVE: Delete a hotspot voucher'. The action removes a voucher irreversibly.
Attacks that exploit this kind of access
DESTRUCTIVE: Delete a hotspot voucher. It is categorised as a Destructive tool in the UniFi Network MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the UniFi Network MCP Server MCP server in PolicyLayer and add a rule for unifi_delete_voucher: 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 UniFi Network MCP Server. Nothing to install.
unifi_delete_voucher 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 unifi_delete_voucher 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 unifi_delete_voucher. 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.
unifi_delete_voucher is provided by the UniFi Network MCP Server MCP server (owine/unifi-network-mcp). 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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