Remove a user from a list membership.
AI agents call removeListsMemberByUserId to permanently remove resources in Xdevplatform/xmcp — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Removing a user from a list membership is an irreversible deletion of that membership relationship. While the user still exists and could theoretically be re-added, the act of removal is a destructive operation that eliminates existing data (the membership record). The blast radius is medium as it affects list membership for potentially many users if misused.
From the tool's definition Remove a user from a list membership
Attacks that exploit this kind of access
Remove a user from a list membership. It is categorised as a Destructive tool in the Xdevplatform/xmcp MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Xdevplatform/x MCP server in PolicyLayer and add a rule for removeListsMemberByUserId: 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 Xdevplatform/xmcp. Nothing to install.
removeListsMemberByUserId 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 removeListsMemberByUserId 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 removeListsMemberByUserId. 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.
removeListsMemberByUserId is provided by the Xdevplatform/x MCP server (xdevplatform/xmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
removeListsMemberByUserId is one line of Xdevplatform/x'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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