InvOwner

Overview

InvOwner is a powerful stealth and management GUI plugin designed for server administrators to monitor and manage players without being detected.

By utilizing packet-level interception, it completely conceals the administrator's presence not only from the in-game view but also from the Tab list, Tab completion, server list online count, and join/quit messages.

Additionally, it provides a dedicated inventory GUI that allows for intuitive moderation tasks such as Kicking and Banning players.

Key Features

• Complete Stealth (Packet-Level Hiding)
  • Players in InvOwner mode are completely invisible to regular players.
  • Excluded from the server list online player count (Ping).
  • Login and Logout messages are hidden.
  • Removed from the Tab list and command Tab completion.
• Forced Spectator Mode
  • InvOwner mode automatically forces the player into Spectator mode to prevent accidental interference with the world.
• Intuitive Admin GUI
  • Open a GUI listing all online players via a dedicated command.
  • Simply right-click a target player to open an "Action GUI" for operations like Kick, Ban, or sending messages.
  • Check the Banned player list and unban players directly from the GUI.
  • Features an Anvil GUI for text input interfaces.

Commands

Command	Description	Executor
/invowner on <player>	Sets the specified player to complete stealth mode (InvOwner mode).	Console Only
/invowner off <player>	Removes the stealth mode from the specified player and restores their state.	Console Only
/invowner playerlist (or pl)	Opens the player management GUI. (Only available when InvOwner mode is ON)	Player Only

Note: For security reasons and to ensure reliable management, switching modes (on/off) is designed to be executed only from the console.

Requirements & Specifications

• Supported Servers: Bukkit / Spigot / Paper and their forks.
• No Dependencies: Works standalone without prerequisite plugins like ProtocolLib, as it contains its own custom packet interceptor (Netty) and NMS reflection handling.
• The list of hidden players is persisted across server restarts (saved in config.yml).