What is?

Rudimentary method for adding loot_pools to loot_tables for mod pack developers

How to add to the game?

.minecraft/dynocap_resources/tweakers/

Sample

{
    "target_table": "minecraft:entities/silverfish", // loot_table to are targeting
    "pool": [{
        "rolls": 1,
        "entries": [
            {
                "type": "minecraft:item",
                "name": "minecraft:stone"
            }
        ]
    }]
}