# DupeDetection Plugin<\/p>\n
A powerful Minecraft Paper plugin designed to detect and prevent item duplication exploits on your server.<\/p>\n
## \ud83d\ude80 Features<\/p>\n
### \ud83d\udce6 Large Stack Detection
\n– Detects when players have large amounts of items
\n– Configurable limits for each item type (e.g. max 512 diamonds, 8 netherite ingots)
\n– Checks all storage containers: chests, barrels, hoppers, furnaces, etc.
\n– Counts total items across ALL inventory slots<\/p>\n
### \ud83d\udd0d NBT Duplicate Detection
\n– Identifies suspicious identical items with same enchantments\/modifications
\n– Individual configuration per item type
\n– Smart detection: only flags items with special NBT data (duplicate enchants, names, etc.)
\n– Catches duplication of gear & items<\/p>\n
### \ud83d\udd14 Discord Integration
\n– Discord webhook notifications with embeds
\n– @everyone mentions
\n– Detailed violation reports with player info, location, and teleport commands
\n– Puts multiple violations from same container into single message<\/p>\n
<\/p>\n
### \u26a1 Exception System
\n– Excempts specific players or UUIDs from all dupe checks
\n– JSON storage for persistent exceptions
\n– Easy management through in-game commands
\n– Tab completion<\/p>\n
## \ud83d\udccb Requirements<\/p>\n
– **Minecraft Version**: 1.21.8
\n– **Server Software**: Paper (or Paper-based forks)
\n– **Java Version**: 21+<\/p>\n
## \ud83d\udee0\ufe0f Installation<\/p>\n
1. Download the latest release from Releases
\n2. Place the JAR file in your server’s `plugins\/` folder
\n3. Restart your server
\n4. Configure the plugin in `plugins\/DupeDetection\/config.yml`<\/p>\n
## \u2699\ufe0f Configuration<\/p>\n
### Discord Setup
\n“`yaml
\ndiscord:
\n enabled: true
\n webhook-url: “YOUR_DISCORD_WEBHOOK_URL”
\n mention-everyone: true
\n username: “DupeDetection Bot”
\n“`<\/p>\n
### Large Stack Limits
\n“`yaml
\nlarge-stack-detection:
\n enabled: true
\n action: “WARN” # LOG, WARN, REMOVE_EXCESS, BAN
\n limits:
\n DIAMOND: 512
\n NETHERITE_INGOT: 8
\n ELYTRA: 1
\n“`<\/p>\n
### NBT Duplicate Detection
\n“`yaml
\nnbt-duplicate-detection:
\n enabled: true
\n items:
\n DIAMOND_SWORD:
\n minimum-duplicates: 10
\n action: “WARN”
\n check-nbt: true # Only check enchanted swords
\n“`<\/p>\n
## \ud83c\udfae Commands<\/p>\n
| Command | Description | Permission | **Aliases**: `\/dd`, `\/dupedect`<\/p>\n ## \ud83d\udd10 Permissions<\/p>\n – `dupedetection.admin` – Full plugin access (default: op) ## \ud83d\udd27 How It Works<\/p>\n ### Detection Triggers ### Detection Process ### Stealth Operation ## \ud83d\udea8 Discord Notifications<\/p>\n Embeds notifications include: A intuitive anti dupe plugin with discord support<\/p>\n","protected":false},"featured_media":59872,"template":"","meta":{"_minecraft_slug":"dupe-detection","_minecraft_project_id":"mvookygo","_minecraft_author":"mabeys","_minecraft_license":"LicenseRef-All-Rights-Reserved","_minecraft_downloads":95,"_minecraft_follows":0,"_minecraft_client_side":"unsupported","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"dupe-detection.zip","_minecraft_size_bytes":336056,"_minecraft_version_count":2,"_minecraft_updated_at":"2026-05-15T19:48:19.827482Z","_minecraft_date_created":"2025-12-18T00:16:15.035976Z","_minecraft_date_modified":"2025-12-11T22:55:54.916505Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/dupe-detection","_minecraft_icon_attachment_id":59872,"_minecraft_imported_at":"2026-06-03T09:58:32+00:00","_minecraft_import_hash":"d028505e8f1e93e3eb03d6e272183ff7","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[126,127,128,129,123,92],"mod_loader":[132,133,134],"minecraft_version":[51,53,54,55,56,57,58,59,36,60,93,94,101,102,62,37,73,74,38,78,79,80,81],"class_list":["post-59871","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-management","mod_category-paper","mod_category-purpur","mod_category-spigot","mod_category-technology","mod_category-utility","mod_loader-paper","mod_loader-purpur","mod_loader-spigot","minecraft_version-1-18","minecraft_version-1-18-2","minecraft_version-1-19","minecraft_version-1-19-1","minecraft_version-1-19-2","minecraft_version-1-19-3","minecraft_version-1-19-4","minecraft_version-1-20","minecraft_version-1-20-1","minecraft_version-1-20-2","minecraft_version-1-20-3","minecraft_version-1-20-4","minecraft_version-1-20-5","minecraft_version-1-20-6","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-2","minecraft_version-1-21-3","minecraft_version-1-21-4","minecraft_version-1-21-5","minecraft_version-1-21-6","minecraft_version-1-21-7","minecraft_version-1-21-8"],"yoast_head":"\n
\n|———|————-|————|
\n| `\/dupedetection info` | Show plugin information | `dupedetection.admin` |
\n| `\/dupedetection reload` | Reload configuration | `dupedetection.admin` |
\n| `\/dupedetection limits` | Show current stack limits | `dupedetection.admin` |
\n| `\/dupedetection setlimit
\n| `\/dupedetection check
\n| `\/dupedetection exception add
\n| `\/dupedetection exception remove
\n| `\/dupedetection exception list` | List exceptions | `dupedetection.admin` |<\/p>\n
\n– `dupedetection.bypass` – Bypass all dupe detection (default: false)<\/p>\n
\n– **Storage Container Close**: Chests, barrels, hoppers, furnaces, etc.
\n– **Player Inventory Close**: When players close their inventory (5-second cooldown)<\/p>\n
\n1. Player closes container\/inventory
\n2. System scans all items in the inventory
\n3. Checks against configured limits and NBT patterns
\n4. Sends Discord notification if violations found
\n5. Notifies online operators <\/p>\n
\n– **No player notifications** – violators are unaware of detection
\n– **Silent monitoring** – only admins receive alerts
\n– **logging** – all activity tracked<\/p>\n
\n– **Player Information**: Name, UUID, avatar
\n– **Violation Details**: Item types, amounts, limits exceeded
\n– **Location Data**: Exact coordinates and world
\n– **Quick Actions**: Teleport command
\n– **Container Info**: Type of storage block involved<\/p>\n","protected":false},"excerpt":{"rendered":"