Ban a user from the server, blocking re-entry until unbanned. Optionally bulk-deletes their recent messages. Requires the Ban Members permission, and the bot
AI agents call discord_ban_member to permanently remove resources in Discord — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Banning a user is a severe, impactful action that removes their access to the server and is not automatically reversible (requires explicit unban). The optional bulk deletion of messages is irreversible. Together these constitute a Destructive action with high blast radius if misused by an AI agent.
From the tool's definition 'Ban a user from the server, blocking re-entry until unbanned. Optionally bulk-deletes their recent messages.'
Attacks that exploit this kind of access
Ban a user from the server, blocking re-entry until unbanned. Optionally bulk-deletes their recent messages. Requires the Ban Members permission, and the bot. It is categorised as a Destructive tool in the Discord MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Discord MCP server in PolicyLayer and add a rule for discord_ban_member: 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 Discord. Nothing to install.
discord_ban_member 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 discord_ban_member 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 discord_ban_member. 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.
discord_ban_member is provided by the Discord MCP server (@pasympa/discord-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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