Seal Lock

Seal Lock is an addon for JJPR (Jujutsu Prison Realm Sky Fix – Fork ) that makes sealing a mob actually permanent.

In the base game, sealing a creature with the Prison Realm doesn’t stop it from simply spawning again. Seal Lock changes that: when a mob is sealed, it records the seal and bans that mob’s entity type from spawning in that world, blocking every spawn source — natural spawns, spawners, /summon, spawn eggs, breeding, and modded spawns. The sealed creature type actually stays gone.

Features:
– Turns any Prison Realm seal on a mob into a persistent, per-world ban on that entity type, so sealed creatures never come back on their own.
– Blocks all spawn sources for sealed types (natural, spawners, /summon, spawn eggs, breeding, and modded spawns), and the ban survives world reloads.
– Fully reversible — release the seal or unban the type and it spawns normally again.
– Tracks who performed the seal (via the Prison Realm item or the /Gokumonkyo command), so only that player or an admin can release it.
– Admin commands to list seals, manually ban/unban entity types, release by id, clear everything, and inspect the current state.
– Configurable to match your setup: which sealed effect, items, and commands count as a seal, plus the attribution window.

How it affects your experience:
– Sealing becomes a real, lasting removal tool instead of a temporary effect. On a server, an admin can permanently remove a dangerous or unwanted creature — a tamed kaiju, a spawnable boss, a griefing mob — and trust it won’t respawn, while still being able to lift the seal later if they choose.