When you right-click a door:
1. Plugin checks if it's a wooden door (ignores iron, trapdoors)
2. Detects adjacent door based on facing and hinge
3. Synchronizes the open/closed state of both doors

1. Download AutoDoubleDoors.jar
2. Place it in your server's `plugins/` folder
3. Restart or reload the server
4. Done – no further steps required

✓ Oak Door
✓ Spruce Door
✓ Birch Door
✓ Jungle Door
✓ Acacia Door
✓ Dark Oak Door
✓ Mangrove Door
✓ Cherry Door
✓ Bamboo Door
✗ Iron Door (ignored – vanilla behavior)
✗ Trapdoors (ignored)

Repository: https://github.com/untouched-12/AutoDoubleDoors