discord_remove_thread_member
Remove a member from a thread (requires confirm=true)
This record as markdown: /tools/arrrnmp-discord-mcp/discord-remove-thread-member.md
What discord_remove_thread_member does on Discord
AI agents call discord_remove_thread_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.
Why discord_remove_thread_member is rated Critical
Removal of thread membership is an irreversible action that destroys the member's relationship to that conversation space. While not as severe as deleting data or banning a user, it permanently severs access and cannot be automatically reverted without re-adding the member. This qualifies as Destructive rather than Write (which is reversible via update).
From the tool's definition Tool removes a member from a thread irreversibly. The description states 'Remove a member from a thread' which describes an action that cannot be undone—the member loses access and all history context.
Attacks that exploit this kind of access
The rule that runs discord_remove_thread_member safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Discord, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For discord_remove_thread_member, this is the rule to start with:
discord_remove_thread_member is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Discord, apply this rule, and every discord_remove_thread_member call is checked against it from then on.
Questions about discord_remove_thread_member
Remove a member from a thread (requires confirm=true). 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_remove_thread_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_remove_thread_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_remove_thread_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_remove_thread_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_remove_thread_member is provided by the Discord MCP server (arrrnmp/discord-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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