task_conversion_valid_county_trigger

task_conversion_valid_county_trigger = {
	is_landless_type_title = no
	save_temporary_scope_as = county_check
	# Liege rite when the county will convert into the liege's faith
	trigger_if = {
		limit = {
			OR = {
				scope:councillor_liege = {
					tgp_has_access_to_ministry_trigger = yes
				}
				faith = scope:councillor_liege.faith
				scope:councillor.faith = scope:councillor_liege.faith
			}
		}
		custom_tooltip = {
			text = task_conversion.tt.county_rite_already_matches_liege
			rite != scope:councillor_liege.rite
		}
	}
	trigger_else = {
		custom_tooltip = {
			text = task_conversion.tt.county_rite_already_matches_chaplain
			rite != scope:councillor.rite
		}
	}

	trigger_if = {
		limit = {
			scope:councillor_liege = {
				is_alive = yes
				has_variable = hold_court_8120_religion_block
			}
		}
		custom_tooltip = {
			text = hold_court_8120_conversion_tt
			faith != scope:councillor_liege.var:hold_court_8120_religion_block
		}
	}
	custom_description = { # Vassal Contract forbids meddling by liege
		text = "is_protected_via_contract_self_or_liege"
		subject = holder
		# don't "protect" same faith in edge cases
		trigger_if = {
			limit = {
				scope:county_check.holder = { is_vassal_or_below_of = scope:councillor_liege }
				scope:councillor_liege.faith != scope:county_check.holder.faith
			}
			holder = {
				NOR = {
					vassal_contract_has_flag = religiously_protected
					any_liege_or_above = {
						is_vassal_or_below_of = scope:councillor_liege
						vassal_contract_has_flag = religiously_protected
					}
				}
			}
		}
	}
	trigger_if = {
		limit = {	
			var:cannot_be_converted_by_value ?= scope:councillor_liege		
		}
		custom_tooltip = {
			text = promised_to_not_convert_county	
			NOT = {
				var:cannot_be_converted_by_value ?= scope:councillor_liege	
			}
		}
	}
	trigger_if = {
		limit = {
			scope:councillor_liege = { is_ai = yes }
			OR = {
				faith = scope:councillor_liege.faith
				faith = scope:councillor.faith
			}
		}
		NOT = {
			rite = { has_variable = pam_rite_grace_period }
		}
	}
	trigger_if = {
		limit = { scope:councillor_liege = { is_ai = yes } }
		# Unreformed Pagans do not tend to even try conversion of non-unreformed faiths unless zealous
		trigger_if = {
			limit = {
				scope:councillor_liege = {
					faith = {
						has_doctrine_parameter = unreformed
					}
				}
			}
			OR = {
				scope:councillor_liege = {
					has_character_flag = vassal_directive_convert_faith
					vassal_is_valid_and_follows_directive_trigger = { VASSAL = this LIEGE = liege }
				}
				scope:councillor_liege = { ai_zeal >= 50 }
				scope:county_check.faith = { has_doctrine_parameter = unreformed }
				scope:county_check = { # Always convert holy sites
					any_county_province = {
						barony = {
							is_holy_site_of = scope:councillor_liege.faith
						}
					}
				}
			}
		}
		# Do not convert Righteous faiths, unless disturbingly zealous
		trigger_if = {
			limit = {
				scope:councillor_liege = {
					faith = {
						faith_hostility_level = {
							target = scope:county_check.faith
							value <= faith_fully_accepted_level
						}
					}
				}
			}

As written in game/common/scripted_triggers/00_councillor_triggers.txt.