Dupe Detection
🟡 Updated this year🖼️ Gallery (2 images)
🔍 Analysis
- 🏆 #24 of 234 management mods in this game by downloads
📋 About This Mod
# DupeDetection Plugin A powerful Minecraft Paper plugin designed to detect and prevent item duplication exploits on your server. ## 🚀 Features ### 📦 Large Stack Detection - Detects when players have large amounts of items - Configurable limits for each item type (e.g. max 512 diamonds, 8 netherite ingots) - Checks all storage containers: chests, barrels, hoppers, furnaces, etc. - Counts total items across ALL inventory slots ### 🔍 NBT Duplicate Detection - Identifies suspicious identical items with same enchantments/modifications - Individual configuration per item type - Smart detection: only flags items with special NBT data (duplicate enchants, names, etc.) - Catches duplication of gear & items ### 🔔 Discord Integration - Discord webhook notifications with embeds - @everyone mentions - Detailed violation reports with player info, location, and teleport commands - Puts multiple violations from same container into single message !(https://cdn.modrinth.com/data/mvookygo/images/d1c4709864ac5743f0e16275022d7448f3862d1a.png) ### ⚡ Exception System - Excempts specific players or UUIDs from all dupe checks - JSON storage for persistent exceptions - Easy management through in-game commands - Tab completion ## 📋 Requirements - **Minecraft Version**: 1.21.8 - **Server Software**: Paper (or Paper-based forks) - **Java Version**: 21+ ## 🛠️ Installation 1. Download the latest release from (https://github.com/CassidyMabey/dupedetection/releases) 2. Place the JAR file in your server's `plugins/` folder 3. Restart your server 4. Configure the plugin in `plugins/DupeDetection/config.yml` ## ⚙️ Configuration ### Discord Setup ```yaml discord: enabled: true webhook-url: "YOUR_DISCORD_WEBHOOK_URL" mention-everyone: true username: "DupeDetection Bot" ``` ### Large Stack Limits ```yaml large-stack-detection: enabled: true action: "WARN" # LOG, WARN, REMOVE_EXCESS, BAN limits: DIAMOND: 512 NETHERITE_INGOT: 8 ELYTRA: 1 ``` ### NBT Duplicate Detection ```yaml nbt-duplicate-detection: enabled: true items: DIAMOND_SWORD: minimum-duplicates: 10 action: "WARN" check-nbt: true # Only check enchanted swords ``` ## 🎮 Commands | Command | Description | Permission | |---------|-------------|------------| | `/dupedetection info` | Show plugin information | `dupedetection.admin` | | `/dupedetection reload` | Reload configuration | `dupedetection.admin` | | `/dupedetection limits` | Show current stack limits | `dupedetection.admin` | | `/dupedetection setlimit <item> <amount>` | Set item limit | `dupedetection.admin` | | `/dupedetection check <player>` | Manually check player | `dupedetection.admin` | | `/dupedetection exception add <player>` | Add exception | `dupedetection.admin` | | `/dupedetection exception remove <player>` | Remove exception | `dupedetection.admin` | | `/dupedetection exception list` | List exceptions | `dupedetection.admin` | **Aliases**: `/dd`, `/dupedect` ## 🔐 Permissions - `dupedetection.admin` - Full plugin access (default: op) - `dupedetection.bypass` - Bypass all dupe detection (default: false) ## 🔧 How It Works ### Detection Triggers - **Storage Container Close**: Chests, barrels, hoppers, furnaces, etc. - **Player Inventory Close**: When players close their inventory (5-second cooldown) ### Detection Process 1. Player closes container/inventory 2. System scans all items in the inventory 3. Checks against configured limits and NBT patterns 4. Sends Discord notification if violations found 5. Notifies online operators ### Stealth Operation - **No player notifications** - violators are unaware of detection - **Silent monitoring** - only admins receive alerts - **logging** - all activity tracked ## 🚨 Discord Notifications Embeds notifications include: - **Player Information**: Name, UUID, avatar - **Violation Details**: Item types, amounts, limits exceeded - **Location Data**: Exact coordinates and world - **Quick Actions**: Teleport command - **Container Info**: Type of storage block involved
# DupeDetection Plugin
A powerful Minecraft Paper plugin designed to detect and prevent item duplication exploits on your server.
## 🚀 Features
### 📦 Large Stack Detection - Detects when players have large amounts of items - Configurable limits for each item type (e.g. max 512 diamonds, 8 netherite ingots) - Checks all storage containers: chests, barrels, hoppers, furnaces, etc. - Counts total items across ALL inventory slots
### 🔍 NBT Duplicate Detection - Identifies suspicious identical items with same enchantments/modifications - Individual configuration per item type - Smart detection: only flags items with special NBT data (duplicate enchants, names, etc.) - Catches duplication of gear & items
### 🔔 Discord Integration - Discord webhook notifications with embeds - @everyone mentions - Detailed violation reports with player info, location, and teleport commands - Puts multiple violations from same container into single message
!(https://cdn.modrinth.com/data/mvookygo/images/d1c4709864ac5743f0e16275022d7448f3862d1a.png)
### ⚡ Exception System - Excempts specific players or UUIDs from all dupe checks - JSON storage for persistent exceptions - Easy management through in-game commands - Tab completion
## 📋 Requirements
- Minecraft Version: 1. 21. 8
- Server Software: Paper (or Paper-based forks)
- Java Version: 21+
## 🛠️ Installation
1. Download the latest release from (https://github.com/CassidyMabey/dupedetection/releases) 2. Place the JAR file in your server's `plugins/` folder 3. Restart your server 4. Configure the plugin in `plugins/DupeDetection/config.yml`
## ⚙️ Configuration
### Discord Setup ```yaml discord: enabled: true webhook-url: "YOUR_DISCORD_WEBHOOK_URL" mention-everyone: true username: "DupeDetection Bot" ```
### Large Stack Limits ```yaml large-stack-detection: enabled: true action: "WARN" # LOG, WARN, REMOVE_EXCESS, BAN limits: DIAMOND: 512 NETHERITE_INGOT: 8 ELYTRA: 1 ```
### NBT Duplicate Detection ```yaml nbt-duplicate-detection: enabled: true items: DIAMOND_SWORD: minimum-duplicates: 10 action: "WARN" check-nbt: true # Only check enchanted swords ```
## 🎮 Commands
| Command | Description | Permission |
|---------|-------------|------------|
| `/dupedetection info` | Show plugin information | `dupedetection.admin` |
| `/dupedetection reload` | Reload configuration | `dupedetection.admin` |
| `/dupedetection limits` | Show current stack limits | `dupedetection.admin` |
| `/dupedetection setlimit
Aliases: `/dd`, `/dupedect`
## 🔐 Permissions
- `dupedetection.admin` - Full plugin access (default: op)
- `dupedetection.bypass` - Bypass all dupe detection (default: false)
## 🔧 How It Works
### Detection Triggers - Storage Container Close: Chests, barrels, hoppers, furnaces, etc. - Player Inventory Close: When players close their inventory (5-second cooldown)
### Detection Process 1. Player closes container/inventory 2. System scans all items in the inventory 3. Checks against configured limits and NBT patterns 4. Sends Discord notification if violations found 5. Notifies online operators
### Stealth Operation - No player notifications - violators are unaware of detection - Silent monitoring - only admins receive alerts - logging - all activity tracked
## 🚨 Discord Notifications
Embeds notifications include: - Player Information: Name, UUID, avatar - Violation Details: Item types, amounts, limits exceeded - Location Data: Exact coordinates and world - Quick Actions: Teleport command - Container Info: Type of storage block involved
📊 Mod Details
- Game
- Minecraft Plugins
- Author
- mabeys
- Version
- 1.0.1
- Downloads
- 153
- Endorsements
- 0
- Category
- management
- Created
- 12/18/2025
- Updated
- 12/11/2025
- Game Versions
- 1.18, 1.18.2, 1.19, 1.19.1, 1.19.2
- Tags
- management, technology, utility
🔧 How to Install Minecraft Plugins Mods
Download from Modrinth. Use Prism Launcher or drop into your mods folder.
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Visit the official mod page for specific installation instructions for this mod.
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❓ Frequently Asked Questions
Which Minecraft Plugins versions does Dupe Detection support?
The author lists 1.18, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3. Other versions may work but are untested by the author.
What is the latest version of Dupe Detection?
Version 1.0.1, published 2025-12-11 with 153 downloads recorded at the source.
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