diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf78d8c8..49d34e94 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,12 @@
 
 ## [Unreleased]
 
+## [v0.51.394] — 2026-06-13 — Release NG (document-title attention badge for pending prompts, #4121)
+
+### Added
+
+- **Desktop/PWA wrappers can now detect approval/clarify attention from the document title without stealing chat-title ownership (#4121).** An active chat tab prepends a `● ` marker only while the current session has a pending approval or clarification prompt; the badge clears on prompt dismissal or session switch. It composes on top of the #4086 title-owner model — `syncTopbar()` still owns the underlying `"<session> — <assistant>"` format and the badge is layered in front of it. (#4121)
+
 ## [v0.51.393] — 2026-06-13 — Release NF (run /yolo immediately while the agent is busy)
 
 ### Fixed
diff --git a/static/messages.js b/static/messages.js
index 5d2812bf..7dd0d653 100644
--- a/static/messages.js
+++ b/static/messages.js
@@ -4127,6 +4127,14 @@ function _approvalPromptBelongsToActiveSession(sid) {
   return !!(sid && _promptActiveSessionId() === sid);
 }
 
+function activeSessionHasPendingPromptAttention() {
+  const sid = _promptActiveSessionId();
+  return !!(sid && (
+    _approvalPendingBySession.has(sid) ||
+    _clarifyPendingBySession.has(sid)
+  ));
+}
+
 function _rememberApprovalPending(pending, pendingCount) {
   if (!pending) return null;
   const sid = pending._session_id || _promptActiveSessionId();
@@ -4137,7 +4145,10 @@ function _rememberApprovalPending(pending, pendingCount) {
 }
 
 function _clearApprovalPendingForSession(sid) {
-  if (sid) _approvalPendingBySession.delete(sid);
+  if (sid) {
+    _approvalPendingBySession.delete(sid);
+    if (typeof syncTopbar === 'function') syncTopbar();
+  }
 }
 
 function _hideApprovalCardIfOwner(sid, force=false) {
@@ -4205,6 +4216,7 @@ function showApprovalCard(pending, pendingCount) {
   if (onceBtn && document.activeElement !== $('msg')) {
     setTimeout(() => onceBtn.focus({preventScroll: true}), 50);
   }
+  if (typeof syncTopbar === 'function') syncTopbar();
 }
 
 function _syncApprovalCollapseButton(card) {
@@ -4591,7 +4603,10 @@ function _rememberClarifyPending(pending) {
 }
 
 function _clearClarifyPendingForSession(sid) {
-  if (sid) _clarifyPendingBySession.delete(sid);
+  if (sid) {
+    _clarifyPendingBySession.delete(sid);
+    if (typeof syncTopbar === 'function') syncTopbar();
+  }
 }
 
 function _hideClarifyCardIfOwner(sid, force=false, reason="dismissed") {
@@ -4613,8 +4628,15 @@ function showClarifyForSession(sid, pending) {
 }
 
 function _renderPendingPromptsForActiveSession() {
+  const sid = _promptActiveSessionId();
   _renderPendingApprovalForActiveSession();
   _renderPendingClarifyForActiveSession();
+  if (
+    sid &&
+    typeof activeSessionHasPendingPromptAttention === 'function' &&
+    activeSessionHasPendingPromptAttention()
+  ) return;
+  if (typeof syncTopbar === 'function') syncTopbar();
 }
 
 function _ensureClarifyCardDom() {
@@ -4967,6 +4989,7 @@ function showClarifyCard(pending) {
   if (input && !sameClarify && document.activeElement !== $('msg')) {
     input.focus({preventScroll: true});
   }
+  if (typeof syncTopbar === 'function') syncTopbar();
 }
 
 async function respondClarify(response) {
diff --git a/static/ui.js b/static/ui.js
index 44afe003..7a4f27ce 100644
--- a/static/ui.js
+++ b/static/ui.js
@@ -6275,6 +6275,9 @@ function syncTopbar(){
   const sessionTitle=S.session.title||t('untitled');
   const _topbarTitle=$('topbarTitle');if(_topbarTitle)_topbarTitle.textContent=sessionTitle;
   document.title=sessionTitle+' \u2014 '+assistantDisplayName();
+  if(typeof activeSessionHasPendingPromptAttention==='function'&&activeSessionHasPendingPromptAttention()){
+    document.title='● '+document.title;
+  }
   const _topbarMeta=$('topbarMeta');
   if(_topbarMeta){
     let sourceLabel=(S.session&&(S.session.source_label||S.session.source_tag||S.session.raw_source))||'';
diff --git a/tests/test_1694_prompt_ownership.py b/tests/test_1694_prompt_ownership.py
index 833d4abf..251e151b 100644
--- a/tests/test_1694_prompt_ownership.py
+++ b/tests/test_1694_prompt_ownership.py
@@ -62,8 +62,10 @@ def test_approval_card_render_is_gated_to_active_session_and_cached():
     body = _function_body(MESSAGES_JS, "showApprovalCard")
     assert "_rememberApprovalPending(" in body
     assert "_approvalPromptBelongsToActiveSession(sid)" in body
+    assert "syncTopbar()" in body
     assert "return;" in body
     assert "let _approvalPendingBySession" in MESSAGES_JS
+    assert "function activeSessionHasPendingPromptAttention()" in MESSAGES_JS
     assert "function _renderPendingPromptsForActiveSession()" in MESSAGES_JS
 
 
@@ -71,6 +73,7 @@ def test_clarify_card_render_is_gated_to_active_session_and_cached():
     body = _function_body(MESSAGES_JS, "showClarifyCard")
     assert "_rememberClarifyPending(" in body
     assert "_clarifyPromptBelongsToActiveSession(sid)" in body
+    assert "syncTopbar()" in body
     assert "return;" in body
     assert "let _clarifyPendingBySession" in MESSAGES_JS
     assert "function _renderPendingPromptsForActiveSession()" in MESSAGES_JS
@@ -100,7 +103,16 @@ def test_load_session_rerenders_cached_prompt_for_new_active_session():
 def test_prompt_rerender_hides_previous_session_cards_without_clearing_cache():
     approval_body = _function_body(MESSAGES_JS, "_renderPendingApprovalForActiveSession")
     clarify_body = _function_body(MESSAGES_JS, "_renderPendingClarifyForActiveSession")
+    rerender_body = _function_body(MESSAGES_JS, "_renderPendingPromptsForActiveSession")
+    clear_approval_body = _function_body(MESSAGES_JS, "_clearApprovalPendingForSession")
+    clear_clarify_body = _function_body(MESSAGES_JS, "_clearClarifyPendingForSession")
     assert "_approvalSessionId && _approvalSessionId !== sid" in approval_body
     assert "hideApprovalCard(true)" in approval_body
     assert "_clarifySessionId && _clarifySessionId !== sid" in clarify_body
     assert "hideClarifyCard(true, 'session')" in clarify_body
+    assert "syncTopbar()" in rerender_body
+    assert "activeSessionHasPendingPromptAttention()" in rerender_body
+    assert "if (sid) {" in clear_approval_body
+    assert "syncTopbar()" in clear_approval_body
+    assert "if (sid) {" in clear_clarify_body
+    assert "syncTopbar()" in clear_clarify_body
diff --git a/tests/test_topbar_lazy_message_count.py b/tests/test_topbar_lazy_message_count.py
index c75819d0..ff37c2e9 100644
--- a/tests/test_topbar_lazy_message_count.py
+++ b/tests/test_topbar_lazy_message_count.py
@@ -24,6 +24,9 @@ def test_sync_topbar_does_not_count_only_loaded_tail_messages():
     assert "const metaText=_topbarMessageMetaText();" in block
     assert "t('n_messages',vis.length)" not in block
     assert "S.messages.filter(m=>m&&m.role&&m.role!=='tool')" not in block
+    assert "document.title=sessionTitle+' \\u2014 '+assistantDisplayName();" in block
+    assert "document.title='● '+document.title;" in block
+    assert "const pendingPrefix=(typeof activeSessionHasPendingPromptAttention==='function'&&activeSessionHasPendingPromptAttention())?'● ':'';" not in block
 
     sessions_js = (ROOT / "static" / "sessions.js").read_text()
     fn = sessions_js[