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For examples of extensions using this hook, see Category:SpecialAchievementsBeforeGetEarned extensions . Category:Extension hooks#SpecialAchievementsBeforeGetEarned Category:Undocumented extension hooks#SpecialAchievementsBeforeGetEarned Category:Extension hooks provided by AchievementBadges Category:Extension hooks#SpecialAchievementsBeforeGetEarned Category:Undocumented extension hooks#SpecialAchievementsBeforeGetEarned Category:Extension hooks provided by AchievementBadges