Adds multiple emoji reactions to a Discord message at once
AI agents use discord_add_multiple_reactions to create or update resources in MCP-Discord — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP-Discord environment.
This tool creates new reaction data on an existing message, which is a Write operation (creates or modifies data reversibly). It is not destructive since reactions can be removed, it does not execute code or trigger external operations, and it poses no financial risk. The severity is low because adding emoji reactions has minimal blast radius and does not affect core message content, user access, or system integrity.
From the tool's definition Tool description states it 'Adds multiple emoji reactions to a Discord message at once'. Adding reactions is a non-destructive, reversible modification operation.
Attacks that exploit this kind of access
Adds multiple emoji reactions to a Discord message at once. It is categorised as a Write tool in the MCP-Discord MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MCP-Discord MCP server in PolicyLayer and add a rule for discord_add_multiple_reactions: 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_add_multiple_reactions is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the discord_add_multiple_reactions 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_add_multiple_reactions. 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_add_multiple_reactions 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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