CircuitBreaker

CircuitBreaker v2.5-Vanguard

A chunk-based performance sentinel for Minecraft servers.

Official Website | Modrinth Project | Hangar Project | GitHub Releases

CircuitBreaker is an anti-lag plugin for modern Minecraft (Paper 1.21+). Instead of running crude global cleanups that clear all entities, it targets the specific chunk causing physics load, entity build-ups, or packet exploits, letting you isolate lag machines without disrupting legitimate players.

Core Features

• Chunk Isolation: Actions are applied only to the chunk causing the issue. All other chunks remain unaffected.
• Tiered Response: Uses a multi-strike system to differentiate between temporary resource spikes and malicious lag machines.
• Non-Destructive Physics Controls: Does not break blocks or delete player builds. It temporarily pauses physics updates in the affected area.
• Smart Entity Culling: An optional module that removes excess entities above a threshold while automatically protecting named mobs, tamed animals, and vehicles.
• Adaptive Scaling: Adjusts detection thresholds dynamically depending on live TPS and MSPT metrics.

What's New in v2.5-Vanguard

• Security Integration: Added early-boot system checking. Checks if the DeMalware-RETRO JVM agent is loaded on server startup, alerting the console if protection is missing.
• AEGIS System Alert notifications: When a chunk is frozen, all players inside the 3x3 frozen perimeter receive a chat warning.
• Configurable Alert Message: Added chunk-frozen-message to config.yml to customize the warning format.
• Proprietary License: Updated the project under a custom All Rights Reserved Software License Agreement.

Technical Details

1. Physics Lag (The 3-Strike System)

This module targets Block Physics Lag (pistons, redstone loops, fluid updates).

1. Counting: Tracks the number of BlockPhysicsEvent occurrences per chunk per second.
2. Soft Reset (Strikes 1 & 2): If a chunk exceeds the configured lag-threshold, it is temporarily unloaded and reloaded to break simple clock loops.
3. Hard Freeze (Strike 3): If the loop persists, the chunk and its 3x3 neighbors are put in a frozen state, canceling physics events in those chunks.
4. Resets: A background timer clears strike lists periodically based on strike-reset-minutes.

2. Smart Entity Culling (Optional)

Must be enabled in config.yml.

1. Scanning: A background task checks entity counts per loaded chunk at defined intervals.
2. Culling: If total entities in a chunk exceed entity-culling.threshold, excess entities are removed.
3. Exceptions: The culler preserves players, whitelisted types, custom-named entities, tamed pets, and vehicles (boats/minecarts).

Admin Commands & Permissions

Settings and ignores are saved to data.yml and persist across restarts.

Permissions

• circuitbreaker.admin: Allows executing /cb commands (Default: op).
• antilag.notify: Allows receiving warning alerts (Default: op).

Commands

Configuration Reference (config.yml)

# CircuitBreaker Configuration File
# Upgraded: v2.5-Vanguard

# Toggle physics lag checks
enabled: true

# Physics threshold settings
lag-threshold: 20000
strike-limit: 3
strike-reset-minutes: 15

# Action Durations (Ticks)
soft-reset-duration-ticks: 200
freeze-duration-ticks: 6000

# Alerts
notify-admins: true
chunk-frozen-message: "&cThis chunk has been frozen due to excessive lag detection!"

# Entity Culling (Optional)
entity-culling:
  enabled: false
  scan-interval-seconds: 15
  threshold: 500
  whitelist:
    - "PLAYER"
    - "VILLAGER"
    - "IRON_GOLEM"
    - "ARMOR_STAND"
    - "ITEM_FRAME"
    - "PAINTING"

# Network Sentinel
packet-sentinel:
  enabled: true
  threshold-per-second: 600

# Updates
auto-update:
  enabled: true

# Discord Integration
discord-webhook:
  enabled: false
  url: ""

# TPS Monitor Sentinel
tps-sentinel:
  enabled: true
  threshold: 18.0
  mspt-threshold: 48.0
  send-to-webhook: true

Requirements & Compatibility

• Server Version: Paper 1.21+ (including Purpur, Pufferfish).
• Folia: Not supported. The plugin will automatically disable itself on Folia platforms to prevent scheduling conflicts.

📦 AJA RETRO Plugin Suite

• DeMalware-RETRO - Advanced JVM agent early-boot malware protection scanner.
• CircuitBreaker - Dynamic lag machine culler and entity optimizer.
• FoliaCore - Multi-threaded native essentials suite built for Folia.
• RetroWorldPurger - Automatic region file purger and storage optimizer.
• RetroMail - High-performance SMTP server integration for mail delivery.

💬 Contact & Custom Quotes

Need direct support or looking to quote a custom plugin? We design and build everything from lightweight server utility plugins up to high-concurrency enterprise-grade server systems:

• 🟢 WhatsApp: +880 1989-208751
• ✉️ Quotes & Support: Get in touch directly on WhatsApp for dedicated support, licensing, or custom software inquiries.