GrimAC Configuration Optimization Report
This document outlines the specific modifications made to the config.yml file to maximize cheat detection, enforce stricter movement and combat validation, and optimize overall server performance.1. Movement & Simulation Hardening (Simulation & Knockback)
- Advantage Ceiling Reduction (max-ceiling: 2): Decreased from the default value of 4 down to 2 in both the standard movement Simulation and the Knockback sections. This stops cheaters from accumulating small, legal-looking micro-advantages over multiple ticks. The anticheat will now flag, block, and rubberband movement exploits twice as fast.
- Faster Violation Decay (setback-decay-multiplier: 0.99): Slightly adjusted from 0.999 to 0.99. This ensures that legitimate players who experience sudden network spikes or lag clear their false violation history much quicker, minimizing continuous false flags for clean users.
2. Combat & Reach Enforcement (Reach)
- Absolute Hit Cancellation (block-impossible-hits: true): Enabled severe combat restriction. Instead of just logging alerts to administrators when a player triggers a Reach violation, GrimAC will now actively cancel and drop the packets of the impossible hit. The target takes 0 damage and 0 knockback from unauthorized attack ranges.
- Maximum Reach Sensitivity (threshold: 0.0005): Maintained the tightest mathematical buffer to immediately flag any attack extending past the hard vanilla limit.
3. Exploit & Ghostblock Mitigation (exploit)
- Elytra Speed Patch (allow-sprint-jumping-when-using-elytra: false): Disabled the vanilla netcode oversight that allows players to stack sprint-jumping momentum with an elytra to achieve game-breaking horizontal speeds.
- Ghostblock Desync Fix (allow-building-on-ghostblocks: false): Disabled the ability to interact with or stand on client-side ghost blocks. The anticheat will now forcefully resynchronize and teleport the client back to their true server-side location, shutting down temporary block-clipping and fake elevator hacks.
4. Advanced & Global Protections
- Experimental Logic (experimental-checks: true): Activated GrimAC's latest experimental sub-detections. This enables advanced, cutting-edge algorithms designed to counter highly sophisticated premium client bypasses.
- Ping Abuse Restriction (ping-abuse-limit-threshold: 800 & max-ping-out-of-flying: 800): Hardened the threshold from 1000ms down to 800ms to heavily limit lag-switching, artificial latency injection, and high-ping timer exploitation.
5. Performance Tuning & Cleanup
- Network Optimization (check-for-updates: false): Disabled the automatic update check on startup to prevent unnecessary main-thread network queries, decreasing boot time and initial server stutters.
- Connection Timeout Tightening (max-transaction-time: 30): Reduced from 60 seconds to 30 seconds to drop hanging, frozen, or timed-out connections faster, freeing up valuable server resources.
- Redundant Code Removal: Completely stripped all lengthy English instruction comments from the file. This drastically minimizes the file size, making the configuration incredibly clean, easy to audit, and lightweight for the plugin's parser to load.
