### Overview
\n**InControlMob** is a Spigot\/Paper plugin for **Minecraft 1.21** that gives server admins a powerful, rule\u2011driven system to control mob spawning, spawner behavior, summoned entities, loot, and experience. Rules are plain JSON files stored in `config\/incontrolmob\/`, hot\u2011reloadable, and validated on load so you can safely customize server behavior without code changes.<\/p>\n
—<\/p>\n
### Key Features
\n– Rule\u2011driven control for spawn, spawner, summon, loot, and experience events
\n– JSON rules with schema validation and clear error reporting
\n– Hot reload with `\/incontrolmob reload` \u2014 no server restart required
\n– Rich conditions: entity type, world, biome, light level, spawn reason, time of day, difficulty, nearby players, NBT match, WorldGuard region checks, and more
\n– Powerful actions: allow\/deny spawn, change health, set equipment, add potion effects, replace entity type, modify drops and XP, set entity flags (noGravity, invulnerable, glowing, persistent), velocity\/passenger changes
\n– Priority and control: rule `priority`, `enabled` flag, `continueOnMatch` option, and file order semantics
\n– Safe and performant: asynchronous rule loading, atomic swap of rule sets, caching and indexing by entityType\/spawnReason, debug logging controlled by config
\n– Optional WorldGuard integration: region checks when WorldGuard is present; graceful degradation when absent
\n– Admin tools: list rules, test rules, and export rules for sharing <\/p>\n
—<\/p>\n
### Installation
\n1. Place the compiled `InControlMob.jar` into your server `plugins\/` folder for Paper 1.21
\n2. Start the server once to generate the `config\/incontrolmob\/` folder and sample JSON files
\n3. Edit the JSON files to define your rules
\n4. Use `\/incontrolmob reload` to apply changes instantly <\/p>\n
**Default config.yml**
\n“`yaml
\nenabled: true
\ndebug: false
\ndefault-action: allow
\nmax-rule-load-time-ms: 5000
\nrule-cache-size: 1024
\n“`<\/p>\n
—<\/p>\n
### Commands **Permissions** —<\/p>\n ### Examples —<\/p>\n ### Troubleshooting —<\/p>\n ### Credits —<\/p>\n ### License Rule-driven mob control plugin for Paper 1.21<\/p>\n","protected":false},"featured_media":84641,"template":"","meta":{"_minecraft_slug":"incontrolmob","_minecraft_project_id":"N4BDDxB2","_minecraft_author":"creative_study_lab","_minecraft_license":"LicenseRef-Creative-Study-Lab-License.","_minecraft_downloads":274,"_minecraft_follows":2,"_minecraft_client_side":"unsupported","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"incontrolmob.zip","_minecraft_size_bytes":23159,"_minecraft_version_count":1,"_minecraft_updated_at":"2026-05-16T12:02:53.317966Z","_minecraft_date_created":"2025-12-28T22:30:30.572945Z","_minecraft_date_modified":"2025-12-20T15:54:30.102382Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/incontrolmob","_minecraft_icon_attachment_id":84641,"_minecraft_imported_at":"2026-06-04T20:12:43+00:00","_minecraft_import_hash":"738100deef802e53c6629efb8cf8ea7e","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[124,126,137,90,127,129,92],"mod_loader":[130,132,134],"minecraft_version":[62,37,40,41,73,74,38,78,79,80,81,82],"class_list":["post-84640","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-bukkit","mod_category-management","mod_category-mobs","mod_category-optimization","mod_category-paper","mod_category-spigot","mod_category-utility","mod_loader-bukkit","mod_loader-paper","mod_loader-spigot","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-10","minecraft_version-1-21-11","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","minecraft_version-1-21-9"],"yoast_head":"\n
\n– `\/incontrolmob reload` \u2014 reload all JSON rules and report errors
\n– `\/incontrolmob rules list` \u2014 list loaded rules with id, priority, and enabled state
\n– `\/incontrolmob rule test
\n– `\/incontrolmob export` \u2014 export current loaded rules to a single archive <\/p>\n
\n– `incontrolmob.reload` \u2014 allow reload
\n– `incontrolmob.manage` \u2014 manage rules and export
\n– `incontrolmob.test` \u2014 run rule tests <\/p>\n
\n– **Block pigs**: add `deny_pigs_global` to `spawn.json`, reload, pigs will no longer spawn
\n– **Strong zombies**: add `strong_zombies_plains_night`, reload, zombies in Plains at night spawn with 40 HP, iron sword, and speed effect
\n– **Spawner replacement**: add a `spawner.json` rule to replace zombies with skeletons <\/p>\n
\n– Enable `debug: true` in `config.yml` for detailed logs
\n– On reload, check console for schema validation errors; invalid rules are skipped and reported
\n– If WorldGuard checks fail, confirm WorldGuard is installed and compatible
\n– For performance, ensure `rule-cache-size` is reasonable and avoid overly broad rules <\/p>\n
\nThis plugin was inspired by the In Control! Mod.
\n**InControlMob** is an independent server\u2011side plugin built for Paper\/Spigot, bringing similar rule\u2011based mob control features to multiplayer servers.<\/p>\n
\nReleased under the **Creative Study Lab License.** (MIT\u2011style permissive). See the **License** file for details.<\/p>\n","protected":false},"excerpt":{"rendered":"