By default the description area is tiny, and resizing it every time is a bit of a pain.
// ==UserScript==
// @name Larger, wider and taller default WYSIWYG description area in the XML item editor - Archive.org
// @description By default the description area is tiny, and resizing it every time is a bit of a pain.
// @namespace Violentmonkey Scripts
// @match https://archive.org/editxml/*
// @grant none
// @run-at document-start
// @version 2020.03.27
// @author Swyter
// ==/UserScript==
/* swy: quick and dirty override; but it seems to work */
window.addEventListener('DOMContentLoaded', function(e)
{
document.querySelector("textarea#id_description").style="width: 905px; height: 406px; display:none;";
document.querySelector("div.wysiwyg").style="width: 910px; height: 500px;";
document.querySelector("div.resizer.ui-resizable").style="height: 473px; width: 910px;";
})