Remove historical data for a client (GDPR compliance).
AI agents call forget_client to permanently remove resources in UniFi MCP — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently deletes historical data associated with a client device or user. Data removal is irreversible and cannot be undone—once historical records are purged, they cannot be recovered. While GDPR compliance is a legitimate use case, the underlying action is destructive.
From the tool's definition Tool is named 'forget_client' and described as 'Remove historical data for a client (GDPR compliance)'. The verb 'Remove' and context of deleting historical data indicates irreversible deletion of stored information.
Documented attack patterns abuse exactly the kind of access forget_client gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and UniFi MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for forget_client:
{
"version": "1",
"default": "deny",
"hide": [
"forget_client"
]
}forget_client disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
Remove historical data for a client (GDPR compliance). It is categorised as a Destructive tool in the UniFi MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the UniFi MCP server in PolicyLayer and add a rule for forget_client: 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 MCP. Nothing to install.
forget_client 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 forget_client 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 forget_client. 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.
forget_client is provided by the UniFi MCP server (jmagar/unifi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from UniFi MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
29 UniFi MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.