DupeWatch
DupeWatch is a Bukkit/Spigot anti-cheat investigation plugin focused on duplicate item detection, economy intelligence, and staff-driven case management.

Feature Categories
️ Core Detection Engine & Item Protection

• Adaptive Machine Learning: an intelligent system that refines detection accuracy from staff review decisions.
• Cryptographic Item Hashing: unique salted hashes for every item.
• UUID Instance Fingerprinting: immutable per-item instance fingerprints for cloned-item detection.
• Real-Time Asynchronous Inventory Scanning: scans inventories without blocking the server thread.
• Full NBT Analysis: inspects custom item data and modded item metadata.
• Weighted Suspicion Scoring: only raises alerts when multiple independent risk factors align.

Economy Intelligence & Money Monitoring

• Context-Aware Alerts: compares player gains against server-wide economic norms.
• Growth Pattern Recognition: flags suspicious geometric or exponential balance changes.
• Dirty Money Tracing: trails illicit currency as it moves through players and economy channels.
• Smart Activity Filtering: excludes legitimate income sources like vote rewards and shop sales.
• Impossible Balance Spike Detection: detects sudden, unnaturally large balance surges.

Behavioral Analysis & Player Tracking

• Three Threat Strictness Profiles: Low, Normal, and Aggressive tracking modes.
• Container Interaction Timelines: records chest, barrel, and storage block histories.
• Cross-Session Block Edit Correlation: links block edits across sessions for setup pattern detection.
• Player Network Analysis: maps item and money exchange relationships to identify mule or alt networks.

Professional Case Management

• Evidence Chain Logging: full chronological timelines of suspicious activity with timestamps.
• Staff Collaboration Tools: persistent internal case notes and investigator updates.
• Offline Inventory Inspection: audit player inventory, ender chest, and equipment while offline.
• Automatic CoreProtect Integration: captures relevant block and container history around incidents.
• One-Click Case Export: export investigation data as structured files for backup or discord review.

️ Visual Analytics & Heatmaps

• Interactive Item Spread Graphs: visualize how a suspected item traveled through the server.
• Visual Money Flow Propagation Maps: map currency transfer paths and laundering behavior.
• Hotspot Heatmaps: display high-frequency container action and suspicious interaction zones.
• Hotspot Teleportation: jump directly to suspicious coordinates discovered by heatmaps.

️ In-Game Management & Custom Rules

• 99% GUI-Driven Workflow: manage cases, rules, and analytics through in-game inventory menus.
• In-Hand Rule Creation: build custom watch rules from an item held in hand.
• Custom Threshold Configuration: define item-specific detection and quantity thresholds.
• Flexible Trigger Actions: choose Alert, Remove, or custom Command execution.

Discord & API Integration

• Rich Embed Webhooks: send formatted alerts to Discord staff channels.
• Configurable Alert Thresholds: reduce noise by only notifying on high-certainty cases.
• Case Summary Links: include quick-access evidence links inside Discord alerts.
• Developer API Flags: expose hooks and plugin flags for third-party integrations.

⚡ Performance Optimization

• Zero TPS Impact Architecture: offloads heavy processing off the main server thread.
• High Concurrent Player Optimization: built for 100–500+ player environments.
• Smart Caching Engine: caches high-frequency data to reduce database load.
• Batch Operations: groups database writes to minimize I/O overhead.

Commands Summary

• /dw — Opens the main review interface dashboard.
• /dw help — Lists all available system commands.
• /dw reload — Hot-reloads all plugin configuration files.
• /dw scan <player> — Forces a manual real-time scan on a specific user.
• /dw case <id> — Pulls up a specific investigation file by its identification number.
• /dw export <id> — Exports the case raw data.
• /dw confiscate <player> — Directly strips flagged items from a user's inventory.
• /dw graph <player> — Renders the item spread visualization graph.
• /dw confiscategraph <player> — Automatically strips items globally based on spread mapping.
• /dw heatmap <caseId> — Projects a block interaction heatmap for a case.
• /dw money <player> — Reviews a player's current financial tracking status.
• /dw moneygraph <player> — Maps a player's currency transfer relationships.
• /dw containerwatch view <player> — Opens historical container transaction logs.
• /dw containerwatch clear <player> — Flushes container transaction logs for a player.
• /dw coreprotect status — Validates current CoreProtect integration health.
• /dw stats <type> — Generates overall engine statistics.
• /dw cleanup — Purges cached heatmap and analytics entries.
• /dw database — Displays database health and connection metrics.