diff --git a/pkg/config/config.go b/pkg/config/config.go
index 7240fee66..d226bba51 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -474,26 +474,17 @@ type WeComAppConfig struct {
 }
 
 type WeComAIBotConfig struct {
-	Enabled bool `json:"enabled" env:"PICOCLAW_CHANNELS_WECOM_AIBOT_ENABLED"`
-
-	// WebSocket long-connection mode.
-	// Set BotID + Secret to use this mode (no encryption, no webhook needed).
-	// Ref: https://developer.work.weixin.qq.com/document/path/101463
-	BotID  string `json:"bot_id,omitempty"  env:"PICOCLAW_CHANNELS_WECOM_AIBOT_BOT_ID"`
-	Secret string `json:"secret,omitempty"  env:"PICOCLAW_CHANNELS_WECOM_AIBOT_SECRET"`
-
-	// Webhook (short-connection) mode.
-	// Set Token + EncodingAESKey to use this mode.
-	Token          string `json:"token,omitempty"           env:"PICOCLAW_CHANNELS_WECOM_AIBOT_TOKEN"`
-	EncodingAESKey string `json:"encoding_aes_key,omitempty" env:"PICOCLAW_CHANNELS_WECOM_AIBOT_ENCODING_AES_KEY"`
-	WebhookPath    string `json:"webhook_path,omitempty"    env:"PICOCLAW_CHANNELS_WECOM_AIBOT_WEBHOOK_PATH"`
-
-	// Common fields
-	AllowFrom          FlexibleStringSlice `json:"allow_from"           env:"PICOCLAW_CHANNELS_WECOM_AIBOT_ALLOW_FROM"`
-	ReplyTimeout       int                 `json:"reply_timeout"        env:"PICOCLAW_CHANNELS_WECOM_AIBOT_REPLY_TIMEOUT"`
-	MaxSteps           int                 `json:"max_steps"            env:"PICOCLAW_CHANNELS_WECOM_AIBOT_MAX_STEPS"`
-	WelcomeMessage     string              `json:"welcome_message"      env:"PICOCLAW_CHANNELS_WECOM_AIBOT_WELCOME_MESSAGE"` // Sent on enter_chat event; empty = no welcome
-	ReasoningChannelID string              `json:"reasoning_channel_id" env:"PICOCLAW_CHANNELS_WECOM_AIBOT_REASONING_CHANNEL_ID"`
+	Enabled            bool                `json:"enabled"                    env:"PICOCLAW_CHANNELS_WECOM_AIBOT_ENABLED"`
+	BotID              string              `json:"bot_id,omitempty"           env:"PICOCLAW_CHANNELS_WECOM_AIBOT_BOT_ID"`
+	Secret             string              `json:"secret,omitempty"           env:"PICOCLAW_CHANNELS_WECOM_AIBOT_SECRET"`
+	Token              string              `json:"token,omitempty"            env:"PICOCLAW_CHANNELS_WECOM_AIBOT_TOKEN"`
+	EncodingAESKey     string              `json:"encoding_aes_key,omitempty" env:"PICOCLAW_CHANNELS_WECOM_AIBOT_ENCODING_AES_KEY"`
+	WebhookPath        string              `json:"webhook_path,omitempty"     env:"PICOCLAW_CHANNELS_WECOM_AIBOT_WEBHOOK_PATH"`
+	AllowFrom          FlexibleStringSlice `json:"allow_from"                 env:"PICOCLAW_CHANNELS_WECOM_AIBOT_ALLOW_FROM"`
+	ReplyTimeout       int                 `json:"reply_timeout"              env:"PICOCLAW_CHANNELS_WECOM_AIBOT_REPLY_TIMEOUT"`
+	MaxSteps           int                 `json:"max_steps"                  env:"PICOCLAW_CHANNELS_WECOM_AIBOT_MAX_STEPS"`
+	WelcomeMessage     string              `json:"welcome_message"            env:"PICOCLAW_CHANNELS_WECOM_AIBOT_WELCOME_MESSAGE"`
+	ReasoningChannelID string              `json:"reasoning_channel_id"       env:"PICOCLAW_CHANNELS_WECOM_AIBOT_REASONING_CHANNEL_ID"`
 }
 
 type PicoConfig struct {