diff --git a/scalabot-extension/src/main/java/net/lamgc/scalabot/extension/BotExtensionCreateOptions.java b/scalabot-extension/src/main/java/net/lamgc/scalabot/extension/BotExtensionCreateOptions.java
index 39dc2e3..5472f2a 100644
--- a/scalabot-extension/src/main/java/net/lamgc/scalabot/extension/BotExtensionCreateOptions.java
+++ b/scalabot-extension/src/main/java/net/lamgc/scalabot/extension/BotExtensionCreateOptions.java
@@ -13,6 +13,12 @@ public class BotExtensionCreateOptions {
     private final long botAccountId;
     private final ProxyConfig proxy;
 
+    /**
+     * 构造新的 BotExtensionCreateOptions.
+     *
+     * @param botAccountId 创建扩展的 Bot 账户 Id.
+     * @param proxy        Bot 所使用的代理配置.
+     */
     public BotExtensionCreateOptions(long botAccountId, ProxyConfig proxy) {
         this.botAccountId = botAccountId;
         this.proxy = proxy;
diff --git a/scalabot-extension/src/main/java/net/lamgc/scalabot/extension/util/AbilityBots.java b/scalabot-extension/src/main/java/net/lamgc/scalabot/extension/util/AbilityBots.java
index d843f93..5130617 100644
--- a/scalabot-extension/src/main/java/net/lamgc/scalabot/extension/util/AbilityBots.java
+++ b/scalabot-extension/src/main/java/net/lamgc/scalabot/extension/util/AbilityBots.java
@@ -4,6 +4,9 @@ import org.telegram.telegrambots.abilitybots.api.bot.BaseAbilityBot;
 
 import java.util.Map;
 
+/**
+ * 一些开发扩展中可以用到的工具类.
+ */
 public final class AbilityBots {
 
     private AbilityBots() {