base_npc:
  hidden: true
  npc: true
  type: villager
  use_npc_name: true
  villager_profession: librarian
  ai: false
  invulnerable: true
  silent: true
  gravity: false
  remove_when_far_away: false
  interact_spell_target: none
  interact_spell_source: player
  interact_command_source: console
  dialog_interval: 4000
  dialog_range: 4
  cancel_interact: true
  prevent_dismount: true
  default_drops: false

base_npc:
  hidden: true
  npc: true
  type: villager
  use_npc_name: true
  villager_profession: librarian
  ai: false
  invulnerable: true
  silent: true
  gravity: false
  remove_when_far_away: false
  interact_spell_target: none
  interact_spell_source: player
  interact_command_source: console
  dialog_interval: 4000
  dialog_range: 3
  cancel_interact: true
  prevent_dismount: true
  default_drops: false

Reduce default NPC dialog range to 3 blocks
Reduce default NPC dialog range to 3 blocks
