Unified browser & script governor with media optimization, idle-aware scheduling, and network spike control for improved stability across dynamic web apps.
// ==UserScript==
// @name Universal Governor Suite
// @namespace ultralean.universal.browser.script.governor
// @version 2.4.3
// @description Unified browser & script governor with media optimization, idle-aware scheduling, and network spike control for improved stability across dynamic web apps.
// @author Michael Stutesman
// @match *://*/*
// @run-at document-start
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_registerMenuCommand
// @grant GM_addStyle
// @license MIT
// ==/UserScript==
(() => {
'use strict';
if (window.__UGS__) return;
window.__UGS__ = 1;
/* =========================================================
🧿 PHANTOM-STYLE SITE EXCLUSIONS (FULL SYSTEM)
========================================================= */
const HOST = location.hostname.toLowerCase();
const EXCLUSION_KEY = "ugb_excluded_sites";
/* load list safely */
const excluded = GM_getValue(EXCLUSION_KEY, []) || [];
/* HARD EXIT (must run BEFORE anything else) */
if (excluded.includes(HOST)) return;
/* ---------------- MENU COMMANDS ---------------- */
GM_registerMenuCommand("🚫 Exclude this site (UGS)", () => {
const list = GM_getValue(EXCLUSION_KEY, []) || [];
if (!list.includes(HOST)) {
list.push(HOST);
GM_setValue(EXCLUSION_KEY, list);
}
location.reload();
});
GM_registerMenuCommand("✅ Re-enable this site (UGS)", () => {
let list = GM_getValue(EXCLUSION_KEY, []) || [];
list = list.filter(x => x !== HOST);
GM_setValue(EXCLUSION_KEY, list);
location.reload();
});
GM_registerMenuCommand("🧹 Clear all exclusions (UGS)", () => {
GM_setValue(EXCLUSION_KEY, []);
location.reload();
});
/* =========================================================
🧠 CORE STATE (single source of truth)
========================================================= */
const U = {
H: HOST,
K: EXCLUSION_KEY,
S: { d:new Set(), q:[], r:[], e:[], h:0, a:0 },
L: Date.now(),
I: 0,
C: { m:7, b:14, bd:9, base:1, heavy:30000, idle:700 },
/* =========================================================
🚫 INIT + EXCLUSIONS + CSS
========================================================= */
init(){
/* 🎨 visual simplifier */
GM_addStyle(`
*{
backdrop-filter:none!important;
-webkit-backdrop-filter:none!important;
filter:none!important;
box-shadow:none!important;
text-shadow:none!important
}
video,canvas,img{
transform:translateZ(0);
will-change:transform,opacity
}
img{content-visibility:auto}
`);
/* 🌙 activity signals */
onmousemove=onscroll=onkeydown=()=>{this.L=Date.now();this.I=1};
document.addEventListener("visibilitychange",()=>{this.L=Date.now();this.I=1});
/* =========================================================
🌐 NETWORK LAYER
========================================================= */
const E = f => new Promise((r,e)=>{
this.S.q.push(f);
this.S.r.push(r);
this.S.e.push(e);
});
fetch = ((fn)=>(...a)=>E(()=>fn(...a)))(fetch);
const o = XMLHttpRequest.prototype.open,
s = XMLHttpRequest.prototype.send;
XMLHttpRequest.prototype.open=function(...a){
this.__u=a[1];
return o.apply(this,a);
};
XMLHttpRequest.prototype.send=function(...a){
const x=this;
return E(()=>new Promise((r,e)=>{
x.onload=()=>r(x);
x.onerror=()=>e(x);
s.apply(x,a);
}));
};
/* =========================================================
🎥 MEDIA LAYER
========================================================= */
const PRECONNECT_CACHE = new Set();
this.v = (v) => {
if(!v || v.__t) return;
v.__t = 1;
try { v.load?.(); } catch {}
v.setAttribute("decoding", "async");
v.preload = (v.muted || v.hasAttribute("autoplay")) ? "auto" : "metadata";
v.playsInline = true;
v.style.contentVisibility = "auto";
v.style.containIntrinsicSize = "480px 270px";
v.style.backgroundColor = "#000";
if(!v.hasAttribute("poster")){
v.poster = "data:image/gif;base64,R0lGODlhAQABAAAAACw=";
}
v.disablePictureInPicture = false;
v.disableRemotePlayback = false;
if("fetchPriority" in v){
v.fetchPriority = v.hasAttribute("autoplay") ? "high" : "low";
}
try{
const src = v.currentSrc || v.src;
if(src){
const url = new URL(src);
if(!PRECONNECT_CACHE.has(url.origin)){
PRECONNECT_CACHE.add(url.origin);
const l = document.createElement("link");
l.rel = "preconnect";
l.href = url.origin;
document.head.appendChild(l);
}
}
}catch{}
if(!v.__p){
v.__p = 1;
queueMicrotask(() => {
try { v.load?.(); } catch {}
});
}
if(!v.__o){
v.__o = 1;
this.O.observe(v);
}
};
/* =========================================================
🌱 DOM PROCESSOR
========================================================= */
this.d = (n) => {
if(!n || n.nodeType!==1) return;
if(n.tagName==="VIDEO") return this.v(n);
const v = n.getElementsByTagName?.("video");
if(v) for(let i=0;i<v.length;i++) this.v(v[i]);
};
/* =========================================================
👁 INTERSECTION OBSERVER
========================================================= */
this.O = new IntersectionObserver(e=>{
for(const x of e){
const v = x.target;
if(v.tagName==="VIDEO"){
v.dataset.visible = x.isIntersecting ? 1 : 0;
if(x.isIntersecting){
try{ v.load?.(); }catch{}
}
this.L = Date.now();
this.I = 1;
}
}
},{rootMargin:"300px"});
/* =========================================================
🧠 HEARTBEAT ENGINE
========================================================= */
this.tick = () => {
let p = this.S.q.length - this.S.h,
d = this.C.base;
if(p >= this.C.b) d += this.C.bd;
if(this.I) this.I = 0;
if(Date.now() - this.L > this.C.heavy) this.I = 0;
if(this.S.d.size){
for(const n of this.S.d) this.d(n);
this.S.d.clear();
}
if(this.S.a < this.C.m && this.S.h < this.S.q.length){
this.S.a++;
const i = this.S.h++;
setTimeout(()=>{
this.S.q[i]().then(this.S.r[i], this.S.e[i]);
this.S.a--;
}, d);
}
setTimeout(()=>this.tick(), this.I ? 80 : this.C.idle);
};
/* =========================================================
🚀 STARTUP
========================================================= */
document.querySelectorAll("video").forEach(v=>this.v(v));
this.tick();
}
};
/* =========================================================
🌱 MUTATION OBSERVER
========================================================= */
new MutationObserver(m=>{
for(const x of m)
for(const n of x.addedNodes)
if(n?.nodeType===1){
U.S.d.add(n);
U.L = Date.now();
U.I = 1;
}
}).observe(document.documentElement,{
childList:1,
subtree:1
});
/* =========================================================
🚀 BOOT
========================================================= */
U.init();
})();