diff --git a/index.js b/index.js
index 87849ce..b1a29a0 100644
--- a/index.js
+++ b/index.js
@@ -1791,9 +1791,6 @@ function ensurePersistedRecallRecordForGeneration({
     },
   );
 
-  // #region agent log
-  {fetch('http://127.0.0.1:7433/ingest/799bfe5d-077f-41ac-bcda-da9f93fe5a85',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'b6ba57'},body:JSON.stringify({sessionId:'b6ba57',location:'index.js:ensurePersistedRecallRecordForGeneration',message:'target resolved',data:{targetUserMessageIndex,chatLen:chat.length,isUser:chat[targetUserMessageIndex]?.is_user,generationType,hookName:String(hookName||''),injectionTextLen:injectionText?.length||0},timestamp:Date.now()})}).catch(()=>{});}
-  // #endregion
   if (
     !Number.isFinite(targetUserMessageIndex) ||
     !chat[targetUserMessageIndex]?.is_user
@@ -2550,9 +2547,6 @@ function refreshPersistedRecallMessageUi() {
     skippedNonUserIndices: [],
   };
 
-  // #region agent log
-  {const _latestUserIdx=chat.reduce((a,m,i)=>m?.is_user?i:a,-1);const _domKeys=[...messageElementMap.keys()];const _hasRecord=_latestUserIdx>=0&&!!readPersistedRecallFromUserMessage(chat,_latestUserIdx);const _hasDom=_latestUserIdx>=0&&messageElementMap.has(_latestUserIdx);fetch('http://127.0.0.1:7433/ingest/799bfe5d-077f-41ac-bcda-da9f93fe5a85',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'b6ba57'},body:JSON.stringify({sessionId:'b6ba57',location:'index.js:refreshPersistedRecallMessageUi:loop-start',message:'refresh loop entry',data:{chatLen:chat.length,domElementCount:_domKeys.length,domKeys:_domKeys.slice(-6),latestUserIdx:_latestUserIdx,hasRecordForLatest:_hasRecord,hasDomForLatest:_hasDom},timestamp:Date.now()})}).catch(()=>{});}
-  // #endregion
   for (let messageIndex = 0; messageIndex < chat.length; messageIndex++) {
     const message = chat[messageIndex];
     const messageElement = messageElementMap.get(messageIndex) || null;
@@ -2584,9 +2578,6 @@ function refreshPersistedRecallMessageUi() {
     }
 
     const record = readPersistedRecallFromUserMessage(chat, messageIndex);
-    // #region agent log
-    if(message?.is_user){const _isLatestUser=messageIndex===chat.reduce((a,m,i)=>m?.is_user?i:a,-1);if(_isLatestUser){fetch('http://127.0.0.1:7433/ingest/799bfe5d-077f-41ac-bcda-da9f93fe5a85',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'b6ba57'},body:JSON.stringify({sessionId:'b6ba57',location:'index.js:refreshPersistedRecallMessageUi:latest-user-check',message:'latest user msg detail',data:{messageIndex,hasRecord:!!record?.injectionText,hasDom:!!messageElement,hasExistingCard:!!existingCard,domMesid:messageElement?.getAttribute?.('mesid'),domDataMesid:messageElement?.getAttribute?.('data-mesid'),domClasses:messageElement?.className?.slice(0,80)||''},timestamp:Date.now()})}).catch(()=>{});}}
-    // #endregion
     if (!record?.injectionText) {
       if (messageElement) {
         restoreRecallCardUserInputDisplay(messageElement);
@@ -2654,9 +2645,6 @@ function refreshPersistedRecallMessageUi() {
       recallCardUserInputDisplayMode,
     );
     summary.renderedCount += 1;
-    // #region agent log
-    {const _isLatestUser2=messageIndex===chat.reduce((a,m,i)=>m?.is_user?i:a,-1);if(_isLatestUser2){fetch('http://127.0.0.1:7433/ingest/799bfe5d-077f-41ac-bcda-da9f93fe5a85',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'b6ba57'},body:JSON.stringify({sessionId:'b6ba57',location:'index.js:refreshPersistedRecallMessageUi:card-mounted',message:'card mounted for latest user',data:{messageIndex,hadExistingCard:!!currentCard,cardInDom:!!messageElement.querySelector('.bme-recall-card')},timestamp:Date.now()})}).catch(()=>{});}}
-    // #endregion
   }
 
   summary.status = summarizePersistedRecallRefreshStatus(summary);
@@ -2673,9 +2661,6 @@ function refreshPersistedRecallMessageUi() {
       `rendered:${summary.renderedCount}`,
     );
   }
-  // #region agent log
-  fetch('http://127.0.0.1:7433/ingest/799bfe5d-077f-41ac-bcda-da9f93fe5a85',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'b6ba57'},body:JSON.stringify({sessionId:'b6ba57',location:'index.js:refreshPersistedRecallMessageUi:summary',message:'refresh complete',data:{status:summary.status,renderedCount:summary.renderedCount,persistedRecordCount:summary.persistedRecordCount,waitingDom:summary.waitingMessageIndices,anchorFail:summary.anchorFailureIndices},timestamp:Date.now()})}).catch(()=>{});
-  // #endregion
   return summary;
 }
 
@@ -2767,9 +2752,6 @@ function armPersistedRecallMessageUiObserver(sessionId, runAttempt) {
 }
 
 function schedulePersistedRecallMessageUiRefresh(delayMs = 0) {
-  // #region agent log
-  {const _prevSession=persistedRecallUiRefreshSession;const _caller=new Error().stack?.split('\n')?.[2]?.trim()?.slice(0,120)||'';fetch('http://127.0.0.1:7433/ingest/799bfe5d-077f-41ac-bcda-da9f93fe5a85',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'b6ba57'},body:JSON.stringify({sessionId:'b6ba57',location:'index.js:schedulePersistedRecallMessageUiRefresh',message:'schedule called',data:{delayMs,prevSession:_prevSession,nextSession:_prevSession+1,caller:_caller},timestamp:Date.now()})}).catch(()=>{});}
-  // #endregion
   clearTimeout(persistedRecallUiRefreshTimer);
   clearPersistedRecallMessageUiObserver();
 
@@ -2792,8 +2774,9 @@ function schedulePersistedRecallMessageUiRefresh(delayMs = 0) {
         summary.status === "missing_message_anchor") &&
       attemptIndex < retryDelays.length - 1;
 
-    const shouldWatchForRepaint =
-      summary.status === "rendered" && summary.renderedCount > 0;
+    // 勿在「已成功渲染」时长期挂 MutationObserver：#chat 上 class/流式更新会疯狂触发
+    // runAttempt，造成满屏刷新与日志；显式事件（USER_MESSAGE_RENDERED 等）仍会 schedule 刷新。
+    const shouldWatchForRepaint = false;
 
     if (!shouldRetryForPending && !shouldWatchForRepaint) {
       clearPersistedRecallMessageUiObserver();
diff --git a/recall-persistence.js b/recall-persistence.js
index 1eaf898..b418474 100644
--- a/recall-persistence.js
+++ b/recall-persistence.js
@@ -134,11 +134,13 @@ export function resolveGenerationTargetUserMessageIndex(
 
   const normalizedType = String(generationType || "normal").trim() || "normal";
 
+  // normal：取「最后一条非系统用户楼层」。若直接 return 末条非 user（常见为刚追加的助手回合），
+  // 会得到 null，导致持久化无法回绑到本轮 user，`hasRecordForLatest` 长期为 false。
   if (normalizedType === "normal") {
     for (let index = chat.length - 1; index >= 0; index--) {
       const message = chat[index];
       if (message?.is_system) continue;
-      return message?.is_user ? index : null;
+      if (message?.is_user) return index;
     }
     return null;
   }