Silent Gear has good compartibility with Elemental Craft, for example EC adds Fireite. But I cannot set EC jewel to SG armor.

To reproduce create or craft "Jewel of Demigod", craft usual iron chestplate and SG chestplate, open anvil interface. You can set jewel to vanilla armor but not to SG clone.

Owner of EC suggested to write issue to SG board with such comment:
"That's because in 1.19.2 there is a forge:armors tag (and derivatives ex: forge:armors/boots and this tag is used to determine if an item can receive jewels or not."

minecraft 1.19.2
forge-1.19.2-43.1.47-installer.jar
silent-lib-1.19.2-7.0.3.jar
silent-gear-1.19.2-3.0.6.jar
silents-gems-1.19.2-4.4.0.jar
caelus-forge-1.19.2-3.0.0.6.jar
curios-forge-1.19.2-5.1.1.0.jar
elementalcraft-1.19.2-5.5.4.jar
dpanvil-1.19.2-4.3.1.jar
jei-1.19.2-forge-11.4.0.285.jar

Also an issue with all other tools because silent gear uses e.g. forge:pickaxes while the actual forge tag is forge:tools/pickaxes