Death sources at the loot hook

LootDrops::damage_source carries the death's damage type and causing/direct entity IDs. Non-death drops have no source. Environmental deaths retain their type, with 0 for absent or unknown IDs. player is remembered kill credit, not necessarily the attacker.

tool is the breaking or using tool (LootContextParams.TOOL), and is always None for entity deaths. To read the attacker's main hand, resolve damage_source.causing with host.entity(id), then host.living(entity), and call living.hand_item(host, Hand::Main). Handle resolution can fail for an absent attacker. This is a live read, including all stack components: changes during living_death and by earlier loot_drops listeners are visible to later readers. No hand snapshot is carried in the context. Native and wasm use the same Host operations.

Projectile direct IDs are currently 0; melee direct IDs equal the causing ID. The shooter's live hand is not the projectile's recorded firing weapon. Reading that recorded weapon through the damage source is separate work.