Since you are looking for a unique feature idea for a Rusherhack -style utility mod, a "Ghost Item" Inventory Manager
The only safe way to use RusherHack is to purchase it through the official website. By buying the official version, you receive: Guaranteed Safety: No risk of malware or account theft.
Backdoors: Some cracks include "auto-coords" features that secretly broadcast your base coordinates to the crack creator, leading to your base being griefed. How to Spot a Fake Repository
GitHub repositories sometimes host HTML files that look like legitimate download pages but actually capture your Minecraft login credentials or attempt to infect your device.