Discord MCP Server

Instructions

Implementation Reference

• src/discord_mcp/core_tool_handlers.py:261-272 (handler)

  The handler function that executes the add_reaction tool logic: fetches the channel and message, adds the specified emoji reaction, and returns a confirmation message.

  async def handle_add_reaction(discord_client, arguments: Dict[str, Any]) -> List[TextContent]:
      """Add a reaction to a message"""
      channel = await discord_client.fetch_channel(int(arguments["channel_id"]))
      message = await channel.fetch_message(int(arguments["message_id"]))
      
      emoji = arguments["emoji"]
      await message.add_reaction(emoji)
      
      return [TextContent(
          type="text",
          text=f"Added reaction {emoji} to message in #{channel.name}"
      )]

• src/discord_mcp/integrated_server.py:772-792 (schema)

  Defines the input schema, parameters, and description for the add_reaction tool in the MCP tool list.

      name="add_reaction",
      description="Add a reaction to a message",
      inputSchema={
          "type": "object",
          "properties": {
              "channel_id": {
                  "type": "string",
                  "description": "Channel containing the message"
              },
              "message_id": {
                  "type": "string",
                  "description": "Message to react to"
              },
              "emoji": {
                  "type": "string",
                  "description": "Emoji to react with (Unicode or custom emoji ID)"
              }
          },
          "required": ["channel_id", "message_id", "emoji"]
      }
  ),

• src/discord_mcp/integrated_server.py:1021-1032 (registration)

  Registers and dispatches the add_reaction tool by including it in the core_tool_names list and routing calls to CoreToolHandlers.handle_add_reaction.

  core_tool_names = [
      "get_server_info", "list_servers", "get_channels", "list_members",
      "get_user_info", "send_message", "read_messages", "add_reaction",
      "add_multiple_reactions", "remove_reaction", "moderate_message",
      "create_text_channel", "delete_channel", "add_role", "remove_role"
  ]
  
  if name in core_tool_names:
      handler_method = f"handle_{name}"
      if hasattr(CoreToolHandlers, handler_method):
          return await getattr(CoreToolHandlers, handler_method)(discord_client, arguments)