Send Gift

is_available = trigger_if = {
	limit = {
		is_ai = yes
	}
	ai_greed < medium_positive_ai_value
	short_term_gold >= gift_interaction_cutoff
	ai_should_focus_on_building_in_their_capital = no
	is_available_at_peace_ai_adult = yes
	NOR = {
		has_trait = greedy
		has_variable = conqueror
	}
}
is_shown = scope:puppet_or_actor ?= {
	this != scope:recipient
	trigger_if = {
		limit = {
			exists = var:loan_amount_owed
			exists = var:loan_holder
		}
		NOT = {
			var:loan_holder = scope:recipient
		}
	}
	trigger_if = {
		limit = {
			scope:recipient = scope:actor
		}
		is_ruler = yes
	}
}

As written in game/common/character_interactions/00_gift.txt.

scope:puppet_or_actor.gold >= gift_value
scope:recipient = {
	NOT = {
		is_imprisoned_by = scope:puppet_or_actor
	}
}
trigger_if = {
	limit = {
		scope:is_puppet_action ?= yes
	}
	custom_tooltip = {
		text = puppet_gift_cooldown_tt
		NOT = {
			scope:puppet_or_actor = {
				has_variable = puppet_gift_cooldown
			}
		}
	}
}

As written in game/common/character_interactions/00_gift.txt.

on_accept = scope:recipient = {
	if = {
		limit = {
			NAND = {
				has_relation_friend = scope:puppet_or_actor
				has_relation_lover = scope:puppet_or_actor
				has_relation_soulmate = scope:puppet_or_actor
				has_relation_best_friend = scope:puppet_or_actor
			}
		}
		gifting_leads_towards_friendship_effect = yes
	}
}
if = {
	limit = {
		scope:puppet_or_actor = {
			is_house_head = yes
		}
		scope:recipient = {
			is_house_head = yes
			NOT = {
				has_opinion_modifier = {
					target = scope:puppet_or_actor
					modifier = gift_opinion
				}
			}
		}
	}
	scope:recipient.house = {
		change_house_relation_effect = {
			HOUSE = scope:puppet_or_actor.house
			VALUE = house_relation_improve_medium_value
			REASON = sent_a_gift
			CHAR = scope:puppet_or_actor
			TARGET_CHAR = scope:recipient
			TITLE = scope:dummy_gender
		}
	}
}
scope:puppet_or_actor = {
	if = {
		limit = {
			scope:actor != scope:recipient
			scope:recipient = {
				has_opinion_modifier = {
					target = scope:puppet_or_actor
					modifier = gift_opinion
				}
			}
		}
		custom_tooltip = ALREADY_SENT_GIFT_WARNING
	}
	send_interface_message = {
		type = event_gold_neutral
		title = gift_interaction_notification
		right_icon = scope:recipient
		pay_short_term_gold = {
			gold = gift_value
			target = scope:recipient
		}
		stress_and_fulfillment_impact = {
			greedy = medium_stress_impact_gain
		}
		if = {
			limit = {
				scope:recipient = {
					NOT = {
						is_heir_of = scope:puppet_or_actor
					}
				}
			}
			stress_and_fulfillment_impact = {
				generous = medium_stress_impact_loss
			}
		}
		if = {
			limit = {
				scope:puppet_or_actor = {
					has_personal_tenet_flag = tenet_simony_personal_gifts
				}
			}
			add_stress = medium_stress_loss
			change_spiritual_fulfillment = miniscule_spiritual_fulfillment_value
		}
		if = {
			limit = {
				scope:puppet_or_actor = {
					rite = {
						rite_has_parameter = piety_from_gifts_active
					}
				}
				NOT = {
					scope:recipient = {
						has_opinion_modifier = {
							target = scope:puppet_or_actor
							modifier = gift_opinion
						}
					}
				}
			}
			scope:puppet_or_actor = {
				add_piety = minor_piety_gain
			}
		}
		if = {
			limit = {
				scope:puppet_or_actor = {
					has_personal_tenet_flag = tenet_philanthropia_alms_to_the_destitute
				}
				scope:recipient = {
					is_in_debt = yes
				}
				NOT = {
					scope:recipient = {
						has_opinion_modifier = {
							target = scope:puppet_or_actor
							modifier = gift_opinion
						}
					}
				}
			}
			scope:puppet_or_actor = {
				add_prestige = minor_prestige_gain
				add_piety = minor_piety_gain
			}
		}
		if = {
			limit = {
				NOT = {
					scope:recipient = {
						has_opinion_modifier = {
							target = scope:puppet_or_actor
							modifier = gift_opinion
						}
					}
				}
			}
			if = {
				limit = {
					scope:puppet_or_actor = {
						any_character_struggle = {
							involvement = involved
							phase_has_catalyst = catalyst_gift_independent_ruler
							activate_struggle_catalyst_secondary_character_involvement_involved_trigger = {
								CATALYST = catalyst_gift_independent_ruler
								CHAR = scope:recipient
							}
						}
					}
				}
				hidden_effect = {
					scope:puppet_or_actor = {
						every_character_struggle = {
							involvement = involved
							limit = {
								phase_has_catalyst = catalyst_gift_independent_ruler
							}
							activate_struggle_catalyst = {
								catalyst = catalyst_gift_independent_ruler
								character = scope:puppet_or_actor
							}
						}
					}
				}
			}
			if = {
				limit = {
					fp3_struggle_involves_one_supporter_and_one_detractor = {
						FIRST = scope:puppet_or_actor
						SECOND = scope:recipient
					}
					scope:puppet_or_actor = {
						any_character_struggle = {
							activate_struggle_catalyst_secondary_character_involvement_either_trigger = {
								CATALYST = catalyst_gift_supporter_detractor_ruler
								CHAR = scope:recipient
							}
						}
					}
				}
				hidden_effect = {
					scope:puppet_or_actor = {
						every_character_struggle = {
							limit = {
								activate_struggle_catalyst_secondary_character_involvement_either_trigger = {
									CATALYST = catalyst_gift_supporter_detractor_ruler
									CHAR = scope:recipient
								}
							}
							activate_struggle_catalyst = {
								catalyst = catalyst_gift_supporter_detractor_ruler
								character = scope:puppet_or_actor
							}
							log_debug_variable_for_persian_struggle_effect = {
								VAR = concession_catalyst_gift_supporter_detractor_ruler
							}
						}
					}
				}
			}
			if = {
				limit = {
					scope:puppet_or_actor = {
						dynasty ?= {
							has_dynasty_perk = fp2_urbanism_legacy_4
						}
					}
					scope:recipient = {
						AND = {
							is_vassal_of = scope:puppet_or_actor
							government_has_flag = government_is_republic
						}
					}
					scope:puppet_or_actor.culture != scope:recipient.capital_province.county.culture
				}
				sco
# … (cut here; the rest is in the file)

As written in game/common/character_interactions/00_gift.txt.