Removes a specific emoji reaction from a Discord message
AI agents call discord_remove_reaction to permanently remove resources in MCP-Discord — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Removing a reaction is an irreversible deletion of that reaction data. While the blast radius is low (only an emoji reaction is lost, and the user could re-add it), the action itself is a deletion that cannot be automatically undone by the system. Severity is low because the impact is minimal — only a cosmetic reaction is removed.
From the tool's definition 'Removes a specific emoji reaction from a Discord message'
Attacks that exploit this kind of access
Removes a specific emoji reaction from a Discord message. It is categorised as a Destructive tool in the MCP-Discord MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MCP-Discord MCP server in PolicyLayer and add a rule for discord_remove_reaction: 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 MCP-Discord. Nothing to install.
discord_remove_reaction 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_reaction 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_reaction. 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_reaction is provided by the MCP-Discord MCP server (jackedelic/mcp-discord). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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