Note: Some of my recommended utility scripts is not possible due to current API, so please add it so it can come true!
Red=Not added
Green=Added
Jungle Tracker
Basically this script will detect if the gromp, dragon, baron, red buff, blue buff is alive/attacked/dead without vision.
I believe the network does send some package of that so we can detect it in some way and use it as a FOW jungle script.
Maybe there is no API for such thing yet, so please add it
Minimap tracker
It shows where enemies are in last location and will draw circle on the map predicting the range they may walk with their ms.
I think it is built in F7 but it does not show enemies in last location for me.
Even it does, please add the circle thingy on mini-map, I am sure it will be very useful!
Anti-Stealth
It will auto cast sweeper or pink wards or upgraded trinket or other skills to reveal if there are Rengar ult or Shaco's Q, drawing circle where Teemo might hide and such. This should be useful playing against most stealth champions.
Anti-Fail Flash
Basically, it will prevent you from flashing if you will fail the flash and help you to walk a bit more further and flash at max range.
And also preventing you from flashing when you are 100% dying from ignite, Vladmir's ult, Zed's ult, Tristana's bomb, Zilean's bomb, poison, burn and such. This is mainly useful so you don't get called something like "nice flash"
I think current API does not prevent flashing so please add a new API for that.
Auto-Lantern
From the name you might already predicted that this script will auto grab Thresh's lantern. Well, that might be annoying. So it should be built with menu options and you can use sliders for % of HP to grab lantern or use some other button to click on the lantern. It is especially useful when enemies are standing on the lantern, And also mainly so that you don't get screamed at something like "why the f*** you didn't get the lantern"
Loading Screen LSI
This script/lib will tell you everyone's rank, win rate, and such in loading screen with drawings. It is especially useful for some people who want to know how "bad" enemies are and how "good" allies are
Anti-Drawings
This script is very damn simple.
What it does is provide you a toggle button to click on and turn off all possible drawings. It is especially useful for some
people who stream with GoS or even showing off with his/her real life friends
Turn Around
Basically this script will help you to turn around so you don't get slow from Tryndamere, or stunned from Cassoipeia. And as well allowing you to do extra damage with Shaco.
Ping Tracker
It can reveals who ever spammed the ping
It is useful for people who want to know who the f*** is pinging so damn much.
(If there is no such function, please add the API as well)
Gold Assistant
It tells how many how current wave might give you, how many gold enemies or allies worth, how many gold they earned and all gold related information like a stalker (some hardcore math skills might be needed coding this script)
EXP Assistant
Basically this script will detect the EXP that is shared with enemy to see how many hidden enemies there are.
It is especially useful for mia support/ADCs/Teemo/Evelynn.
Also, it will tell you how many minion left for you to kill to get to next level and for enemy too.
It is very useful for skilled players who play mid/top around level 5~6 (Every second is important if you get ultimate for battle.)
(some hardcore math skills might be needed coding this script as well )
Anti-Base/Recallult
Basically it is exactly what the name say, it will detect if an ultimate is sent to you or to the base and stop your recall and move location for safer recall. (RIP Deftsu's baseult )
Minion manager
This tell you how many CS you missed and how many CS you got so you don't have to look at tab so often. It is useful for some kind of nerds/plebs might want to count how many CS he missed to practice last hitting and such
Anti-Juke
This script will tell you where did Ezreal's E go, Vayne's Q, Flashes, Shaco's Q and such so you don't get juked.
(There is no API for such waypoints so please add that too)
Anti-FPS
Basically, it help you to not reducing FPS too much for using GOS
If all those can be added, I think GoS will be much more useful
P.S. upvote more so Feretorix might add the necessary API