Chunk Cap Guard

On a fixed interval the mod iterates through the loaded chunks of the current world and tallies the entities listed in its configuration. The scan runs at a long interval, so it does not check every chunk on every tick. When the total of tracked entities in a chunk passes the per-chunk limit, matching entities in that chunk are removed until the count is back under the cap. The config sets the scan interval, the entity limit and the list of target entities, and an option controls whether over-limit chunks are announced to players in a broadcast message.

The mod is aimed at localized entity overcrowding, where a farm, a spawner or an abnormal mob concentration builds up in one area and slows the server. It only clears entity overflow chunks and does not touch the rest of the world. Chunk Cap Guard is published for Forge and NeoForge across seven release versions, 1.20.1 – 1.21.1, and requires no client install because the environment is server-side only. Its license is All rights reserved, so the code is not open source, although the source code is publicly available.