Never run a new script on your main account first. Use an alternative account to see if the script triggers a kick or a ban.
Some scripts allow for "client-side" visual mods that aren't usually available in the standard garage. How to Use Scripts Safely Drive World Script Pastebin Best AutoFarm Scrip...
Prevents the game from kicking you for inactivity, allowing you to farm overnight. Never run a new script on your main account first