decrease_parent_meddling_value_effect

decrease_parent_meddling_value_effect = {
	hidden_effect = {
		if = {
			limit = {
				root = { is_ai = no }
				has_variable = parent_meddling
				var:parent_meddling > 1
			}
			change_variable = {
				name = parent_meddling
				add = -1
			}
		}
		else_if = {
			limit = { has_variable = parent_meddling }
			remove_variable = parent_meddling
		}
	}
}

As written in game/common/scripted_effects/00_parent_effects.txt.