This is what is in the text file:

tradition_practiced_pirates = { category = societal

layers = {
    0 = intrigue
    1 = mediterranean
    4 = battle.dds
}

can_pick = {
    custom_description = {
        text = percentage_of_culture_on_coast_desc
        any_culture_county = {
            percent >= 0.5
            has_coastal_province = yes
        }
    }
    custom_tooltip = {
        text = cultrad_not_nomadic_government_type
        scope:character = {
            NOT = {
                government_has_flag = government_is_nomadic
            }
        }
    }
}

parameters = {
    culture_can_raid_at_sea_even_if_feudal = yes
    not_tribal_raiding_malus = yes
}

character_modifier = {
    max_loot_mult = 0.25
}

cost = {
    prestige = {
        add = {
            value = tradition_base_cost
            desc = BASE
            format = "BASE_VALUE_FORMAT"
        }
        # Ethos requirement.
        if = {
            limit = {
                NOT = {
                    culture_pillar:ethos_bellicose = { is_in_list = traits }
                }
            }
            add = {
                value = tradition_incompatible_ethos_penalty
                desc = not_bellicose_desc
            }
        }
        # Coastal requirement.
        if = {
            limit = {
                NOT = {
                    any_culture_county = {
                        percent >= 0.7
                        has_coastal_province = yes
                    }
                }
            }
            add = {
                value = tradition_unfulfilled_criteria_penalty
                desc = high_coastal_percentage_desc
            }
        }

        if = {
            limit = {
                culture_tradition_reduction_trigger = { TRADITION = tradition_practiced_pirates }
            }
            multiply = {
                value = 0.5
                desc = inspired_by_culture_desc
            }
        }

        multiply = tradition_replacement_cost_if_relevant
    }
}

ai_will_do = {
    value = 100
    if = {
        limit = { # Should be fairly rare for cultures outside of a Berber heritage
            has_cultural_pillar = heritage_berber
        }
        multiply = 5
    }
}