player_hit_by_arrow.json

{
  "criteria": {
    "arrow_hits_player": {
      "trigger": "minecraft:entity_hurt_player",
      "conditions": {
        "damage": {
          "blocked": false,
          "type": {
            "is_projectile": true,
            "direct_entity": {
              "nbt": "{Tags:[\"CustomArrow\"]}",
              "type": "minecraft:arrow"
            },
            "source_entity": {
              "type": "minecraft:player"
            }
          }
        }
      }
    }
  },
  "rewards": {
    "function": "custom_arrows:arrow_action"
  }
}