From 537e4ed550038e37034ba26c542de3dd96497996 Mon Sep 17 00:00:00 2001
From: AskaEth <i@yeij.top>
Date: Sun, 28 Jun 2026 12:17:03 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E7=BE=A4=E8=81=8A=E9=9D=9E@=E6=B6=88?=
 =?UTF-8?q?=E6=81=AF=E8=B5=B0=E5=AE=A1=E6=9F=A5=E6=A8=A1=E5=BC=8F=E2=80=94?=
 =?UTF-8?q?=E5=80=BC=E5=BE=97=E6=8F=92=E8=AF=9D=E6=89=8D=E5=9B=9E?=
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---
 backend/ai-core/cmd/main.go | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/backend/ai-core/cmd/main.go b/backend/ai-core/cmd/main.go
index 4be5e99..5b157e7 100644
--- a/backend/ai-core/cmd/main.go
+++ b/backend/ai-core/cmd/main.go
@@ -1077,7 +1077,18 @@ func handleChat(
 	}
 
 	// 平台静默观察模式：只记录消息、提取记忆、触发后台思考，不生成回复。
-	if req.Mode == "platform_silent" {
+	if req.Mode == "group_ambient" {
+			// 群聊环境消息 — 审查是否值得回应
+			message := req.Message
+			ctxBuilder.CacheMessage(req.SessionID, model.RoleUser, message)
+			if thinker != nil {
+				thinker.RecordUserMessage(req.SessionID)
+			}
+			// 在消息前加审查指令，让 LLM 自己判断是否插话
+			req.Message = "【群聊环境消息】" + message + "\n\n你不需要回复这条消息，除非你真有特别相关的话要说。如果不想说话，只用 <action> 在心里轻轻想一下即可，不用发消息。"
+			req.Mode = "text"
+		}
+		if req.Mode == "platform_silent" {
 		if thinker != nil {
 			thinker.RecordUserMessage(req.SessionID)
 			if req.Source.Platform != "" && req.Source.BotUID != "" {