Scapegoat Co-Ruler

is_available = trigger_if = {
	limit = {
		is_ai = yes
	}
	OR = {
		AND = {
			has_active_diarchy = yes
			OR = {
				diplomacy_diff = {
					target = diarch
					value >= 5
				}
				intrigue_diff = {
					target = diarch
					value >= 5
				}
			}
		}
		AND = {
			is_diarch = yes
			OR = {
				intrigue_diff = {
					target = liege
					value >= 5
				}
				diplomacy_diff = {
					target = liege
					value >= 5
				}
			}
			diarch_loyalty < diarch_loyalty_visibly_loyal_threshold
		}
	}
	NOR = {
		has_trait = honest
		has_trait = just
		has_trait = loyal
	}
}
is_shown = is_in_scapegoating_diarchy_visibility_trigger = {
	PARAMETER_TYPE = has_diarchy_parameter
}

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

scope:actor = {
	is_imprisoned = no
	is_adult = yes
}
scope:recipient = {
	is_adult = yes
}
trigger_if = {
	limit = {
		scope:actor = {
			is_diarch_of_target = scope:recipient
		}
	}
	diarch_cannot_be_disabled_trigger = {
		DIARCH = scope:actor
	}
}
custom_tooltip = {
	text = scapegoat_counterpart_interaction.tt.skill_requirements
	OR = {
		scope:actor.diplomacy > scope:recipient.diplomacy
		scope:actor.intrigue > scope:recipient.intrigue
	}
}
is_in_scapegoating_diarchy_visibility_trigger = {
	PARAMETER_TYPE = has_diarchy_active_parameter
}
NOT = {
	scope:actor = {
		is_at_war_with = scope:recipient
	}
}

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

on_accept = scope:recipient = {
	if = {
		limit = {
			is_diarch_of_target = scope:actor
		}
		trigger_event = diarchy.8041
		every_player = {
			limit = {
				top_liege = scope:actor.top_liege
				NOR = {
					this = scope:actor
					this = scope:recipient
				}
			}
			trigger_event = diarchy.8041
		}
		scapegoat_counterpart_interaction_process_results_effect = {
			REALM_OPINION_ACTOR = add_tyranny
			REALM_OPINION_RECIPIENT = change_strife_opinion
		}
	}
	else = {
		tgp_activate_catalyst_against_hegemon_effect = {
			HEGEMON = scope:actor.top_liege
			CATALYST = catalyst_diarch_mandate
		}
		trigger_event = diarchy.8042
		every_player = {
			limit = {
				top_liege = scope:actor.top_liege
				NOR = {
					this = scope:actor
					this = scope:recipient
				}
			}
			trigger_event = diarchy.8042
		}
		scapegoat_counterpart_interaction_process_results_effect = {
			REALM_OPINION_ACTOR = change_strife_opinion
			REALM_OPINION_RECIPIENT = add_tyranny
		}
	}
}
scope:recipient = {
	add_opinion = {
		target = scope:actor
		modifier = slandered_me_opinion
		opinion = {
			value = scope:multiplied_diff
			divide = -20
			max = -10
		}
	}
}
custom_tooltip = scapegoat_counterpart_interaction.tt.infighting_sullies_the_realm

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