diff --git a/app/resolve.js b/app/resolve.js
index 9920e46..5ac1b68 100644
--- a/app/resolve.js
+++ b/app/resolve.js
@@ -150,9 +150,10 @@ function isSafeRepoPath(p) {
 }
 
 /**
- * 對話收斂主流程：取得 PR 所有行內 review comment、收斂成對話、跳過已 resolve 的，
- * 對所有「未解決」對話一律呼叫 Gitea resolve API 關閉（findings.json 為唯一待辦來源），
- * 再取最新程式碼交 AI 判斷每個對話的狀態並決定其在 findings 的去向：
+ * 對話收斂主流程：取得 PR 所有行內 review comment，
+ * 先把**每一個未解決的 comment**（依 comment id 去重，含無 path／position 者）一律呼叫 Gitea resolve API 關閉
+ * （findings.json 為唯一待辦來源，下次 review 依其重貼 comment）；
+ * 再以「檔案路徑＋行號」收斂成對話、取最新程式碼交 AI 判斷，決定每個對話在 findings 的去向：
  * - 'resolved'（程式碼已修復）→ 從舊問題移除（resolvedFindings）；
  * - 'false_positive'（誤報）→ 寫入 exclusions 並從舊問題移除（excludedFindings）；
  * - 'open'（仍成立）→ 加入舊問題集合（carriedFindings）。
@@ -177,8 +178,26 @@ export async function reconcileConversations(deps = {}) {
   const conversations = groupConversations(comments);
   const open = conversations.filter(c => !c.resolved && c.commentIds.length > 0);
   const alreadyResolved = conversations.length - open.length;
-  line(`對話收斂: 對話總數=${conversations.length} 已解決/不可處理=${alreadyResolved} 待處理=${open.length}`);
-  if (open.length === 0) return { ...EMPTY };
+
+  // 要關閉的 comment：有 id 且尚未被 resolve（不依賴 path|line 分組，確保每個獨立 thread 都關到，含無 path／position 者）
+  const unresolvedCommentIds = [...new Set(
+    (comments || []).filter(c => c?.id != null && !c?.resolver).map(c => c.id),
+  )];
+  line(`對話收斂: 對話總數=${conversations.length} 已解決/不可處理=${alreadyResolved} 待判斷=${open.length} 待關閉 comment=${unresolvedCommentIds.length}`);
+
+  // 關閉所有未解決 comment（allSettled：個別失敗不中斷其他）
+  const settled = await Promise.allSettled(unresolvedCommentIds.map(id => resolveComment(id)));
+  let closedCount = 0;
+  settled.forEach((s, i) => {
+    if (s.status === 'fulfilled') closedCount += 1;
+    else warn(`resolve comment 失敗: id=${unresolvedCommentIds[i]} error=${s.reason?.message}`);
+  });
+  if (unresolvedCommentIds.length > 0) ok(`已關閉 ${closedCount}/${unresolvedCommentIds.length} 個未解決 comment`);
+
+  if (open.length === 0) {
+    ok(`對話收斂完成: 關閉 comment=${closedCount} 已修復=0 誤報=0 仍成立=0`);
+    return { ...EMPTY, closedCount };
+  }
 
   // 並行取得各檔案最新內容；單一檔案失敗時視為空字串，不中斷整體流程
   const fileCache = new Map();
@@ -214,18 +233,6 @@ export async function reconcileConversations(deps = {}) {
   }
   const verdictByIdx = new Map(verdicts.map(v => [v.idx, v.verdict]));
 
-  // 全部先關閉：對所有未解決對話一律呼叫 resolve API（allSettled：個別失敗不中斷其他）
-  const settled = await Promise.allSettled(open.map(c => resolveComment(c.commentIds[0])));
-  let closedCount = 0;
-  open.forEach((c, i) => {
-    if (settled[i].status === 'fulfilled') {
-      closedCount += 1;
-      ok(`對話已關閉: ${c.path}:${c.line}`);
-    } else {
-      warn(`resolve 對話失敗: ${c.path}:${c.line} error=${settled[i].reason?.message}`);
-    }
-  });
-
   // 依 AI 判斷決定每個對話在 findings 的去向
   const resolvedFindings = [];   // 已修復 → 從舊問題移除
   const excludedFindings = [];   // 誤報 → 寫入 exclusions 並從舊問題移除
@@ -248,7 +255,7 @@ export async function reconcileConversations(deps = {}) {
     }
   }
 
-  ok(`對話收斂完成: 關閉對話=${closedCount}/${open.length} 已修復=${resolvedCount} 誤報=${falsePositiveCount} 仍成立=${openCount}`);
+  ok(`對話收斂完成: 關閉 comment=${closedCount}/${unresolvedCommentIds.length} 已修復=${resolvedCount} 誤報=${falsePositiveCount} 仍成立=${openCount}`);
   return {
     resolvedFindings, excludedFindings, carriedFindings,
     resolvedCount, falsePositiveCount, openCount, closedCount,