Ask to Take Monastic Vows

is_available = trigger_if = {
	limit = {
		is_ai = yes
	}
	piety >= major_piety_value
	is_adult = yes
}
is_shown = scope:puppet_or_actor ?= {
	faith ?= {
		any_faith_holy_order = {
			take_the_vows_valid_monastic_order_trigger = {
				CHARACTER = scope:puppet_or_actor
			}
		}
	}
	NOT = {
		any_learning_councillor = {
			this = scope:recipient
		}
	}
	take_vows_available_trigger = yes
}
scope:recipient = {
	is_courtier_of = scope:puppet_or_actor
	NOR = {
		has_trait = devoted
		has_trait = order_member
	}
}
trigger_if = {
	limit = {
		scope:actor = {
			is_ai = yes
		}
	}
	scope:recipient = {
		is_close_or_extended_family_of = scope:puppet_or_actor
		NOR = {
			exists = betrothed
			is_married = yes
			is_primary_heir_of = scope:puppet_or_actor
		}
	}
}

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

trigger_if = {
	limit = {
		scope:is_puppet_action ?= yes
	}
	scope:puppet_or_actor = {
		piety >= scope:recipient.ask_to_take_vows_piety_cost
	}
}
trigger_if = {
	limit = {
		scope:is_puppet_action ?= yes
	}
	scope:puppet_or_actor = {
		dynasty ?= {
			dynasty_prestige >= take_vows_dynasty_prestige_cost_value
		}
	}
}
scope:recipient = {
	age >= 10
	is_courtier_of = scope:puppet_or_actor
	can_take_religious_vows_trigger = yes
}
custom_tooltip = {
	text = cannot_take_overt_hostile_actions_against_diarch.tt
	NOT = {
		scope:recipient ?= scope:puppet_or_actor.diarch
	}
}
scope:puppet_or_actor = {
	NOT = {
		has_character_modifier = promised_pilgrimage_to_clergy_modifier
	}
}
trigger_if = {
	limit = {
		scope:secondary_recipient ?= {
			has_realm_law = female_monastic_holy_order_succession_law
		}
	}
	custom_tooltip = {
		text = female_monastic_order_not_female_tt
		scope:recipient = {
			is_female = yes
		}
	}
}
trigger_if = {
	limit = {
		scope:secondary_recipient ?= {
			has_realm_law = male_monastic_holy_order_succession_law
		}
	}
	custom_tooltip = {
		text = male_monastic_order_not_male_tt
		scope:recipient = {
			is_male = yes
		}
	}
}

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

on_send = scope:secondary_recipient = {
	save_scope_as = archabbot
}
scope:recipient = {
	set_variable = {
		name = vows_piety_spent
		value = ask_to_take_vows_piety_cost
		days = 10
	}
}
on_accept = if = {
	limit = {
		scope:is_puppet_action ?= yes
	}
	scope:puppet_or_actor = {
		add_piety = {
			value = {
				add = scope:recipient.ask_to_take_vows_piety_cost
				max = piety
				multiply = -1
			}
		}
		if = {
			limit = {
				take_vows_dynasty_prestige_cost_value > 0
			}
			dynasty ?= {
				add_dynasty_prestige = {
					value = {
						value = take_vows_dynasty_prestige_cost_value
						multiply = -1
					}
				}
			}
		}
	}
}
scope:secondary_recipient = {
	save_scope_as = archabbot
}
scope:puppet_or_actor = {
	if = {
		limit = {
			scope:hook = yes
		}
		use_hook = scope:recipient
	}
	if = {
		limit = {
			scope:demand = yes
		}
		scope:puppet_or_actor = {
			show_as_tooltip = {
				take_vows_demand_effect = yes
			}
		}
	}
	show_as_tooltip = {
		send_child_to_monastic_order_effect = yes
	}
	take_vows_faith_opinion_effect = yes
	reverse_add_opinion = {
		target = scope:archabbot
		modifier = pleased_opinion
		opinion = 25
	}
	scope:recipient = {
		if = {
			limit = {
				OR = {
					scope:demand ?= yes
					AND = {
						is_imprisoned_by = scope:puppet_or_actor
						OR = {
							is_heir_of = scope:puppet_or_actor
							any_claim = {
								exists = this
							}
						}
					}
				}
			}
			add_opinion = {
				modifier = forced_taking_vows
				target = scope:puppet_or_actor
			}
		}
		else = {
			add_opinion = {
				modifier = demanded_taking_vows
				target = scope:puppet_or_actor
			}
		}
		kick_from_court_interaction_warning_tooltip_effect = yes
	}
	trigger_event = holy_order.2020
}
hidden_effect = {
	scope:recipient = {
		remove_variable = vows_piety_spent
	}
}
add_clan_unity_interaction_effect = {
	CHARACTER = scope:puppet_or_actor
	TARGET = scope:recipient
	VALUE = minor_unity_gain
	DESC = clan_unity_take_vows.desc
	REVERSE_NON_HOUSE_TARGET = no
}
scope:recipient = {
	if = {
		limit = {
			is_adult = no
			has_focus = education_learning
		}
		custom_tooltip = take_vows_improve_education_learning_tt
	}
	if = {
		limit = {
			is_adult = no
			has_focus = education_stewardship
		}
		custom_tooltip = take_vows_improve_education_stewardship_tt
	}
}
scope:puppet_or_actor = {
	if = {
		limit = {
			faith = {
				any_faith_holy_order = {
					leader = scope:secondary_recipient
					holy_order_patron = scope:puppet_or_actor
				}
			}
		}
		custom_tooltip = take_vows_patron_boost_monk_xp_tt
	}
}
on_decline = scope:puppet_or_actor = {
	if = {
		limit = {
			scope:demand = yes
		}
		scope:puppet_or_actor = {
			show_as_tooltip = {
				take_vows_demand_effect = yes
			}
		}
	}
}
scope:recipient = {
	add_opinion = {
		target = scope:puppet_or_actor
		modifier = asked_me_to_take_vows_opinion
		years = 10
	}
}
scope:puppet_or_actor = {
	trigger_event = {
		id = religious_interaction.1031
	}
}
show_as_tooltip = {
	scope:puppet_or_actor = {
		add_piety_no_experience = {
			value = scope:recipient.ask_to_take_vows_piety_cost
		}
	}
}
hidden_effect = {
	if = {
		limit = {
			scope:recipient = {
				has_variable = vows_piety_spent
			}
		}
		scope:puppet_or_actor = {
			add_piety_no_experience = {
				value = scope:recipient.var:vows_piety_spent
			}
		}
		scope:recipient = {
			remove_variable = vows_piety_spent
		}
	}
}
add_clan_unity_interaction_effect = {
	CHARACTER = scope:puppet_or_actor
	TARGET = scope:recipient
	VALUE = minor_unity_loss
	DESC = clan_unity_refused_to_take_vows.desc
	REVERSE_NON_HOUSE_TARGET = no
}

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