diff --git a/CHANGELOG.md b/CHANGELOG.md
index f4914957..813ac5c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,12 @@
 
 ## [Unreleased]
 
+## [v0.51.167] — 2026-05-30 — Release EM (stage-batch49 — iOS-style swipe actions for touch devices + session-list FLIP reflow)
+
+### Added
+
+- Touch devices now support iOS-mail-style swipe actions on session rows: swipe left to reveal a Delete action, swipe right to reveal Archive (Restore for already-archived sessions). Swipe is gated to touch/coarse-pointer input, so desktop click, context-menu, and drag behavior are unchanged. Delete still routes through the existing confirmation dialog. The session list also gains FLIP-based reflow animation when rows are archived, deleted, or reordered, honoring `prefers-reduced-motion`.
+
 ## [v0.51.166] — 2026-05-30 — Release EL (stage-batch48 — shared OpenCode runtime key + cron project-chip sessions)
 
 ### Fixed
diff --git a/static/icons.js b/static/icons.js
index 65fd1020..6aedb459 100644
--- a/static/icons.js
+++ b/static/icons.js
@@ -21,6 +21,7 @@ const LI_PATHS = {
   'upload':          '<path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/><polyline points="17 8 12 3 7 8"/><line x1="12" y1="3" x2="12" y2="15"/>',
   'braces':          '<path d="M8 3H7a2 2 0 0 0-2 2v5a2 2 0 0 1-2 2 2 2 0 0 1 2 2v5c0 1.1.9 2 2 2h1"/><path d="M16 3h1a2 2 0 0 1 2 2v5a2 2 0 0 0 2 2 2 2 0 0 0-2 2v5a2 2 0 0 1-2 2h-1"/>',
   'trash-2':         '<path d="M3 6h18"/><path d="M19 6v14c0 1-1 2-2 2H7c-1 0-2-1-2-2V6"/><path d="M8 6V4c0-1 1-2 2-2h4c1 0 2 1 2 2v2"/><line x1="10" y1="11" x2="10" y2="17"/><line x1="14" y1="11" x2="14" y2="17"/>',
+  'archive':         '<rect x="3" y="4" width="18" height="4" rx="1"/><path d="M5 8v11a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2V8"/><path d="M10 12h4"/>',
   'settings':        '<circle cx="12" cy="12" r="3"/><path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1-2.83 2.83l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-4 0v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1 0-4h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 2.83-2.83l.06.06A1.65 1.65 0 0 0 9 4.68a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 4 0v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 0 4h-.09a1.65 1.65 0 0 0-1.51 1z"/>',
   'alert-triangle':  '<path d="M10.29 3.86L1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z"/><line x1="12" y1="9" x2="12" y2="13"/><line x1="12" y1="17" x2="12.01" y2="17"/>',
   'refresh-cw':      '<polyline points="23 4 23 10 17 10"/><polyline points="1 20 1 14 7 14"/><path d="M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15"/>',
diff --git a/static/sessions.js b/static/sessions.js
index c76360db..7a484797 100644
--- a/static/sessions.js
+++ b/static/sessions.js
@@ -107,6 +107,14 @@ let _sessionListLastScrollAt = 0;
 let _pendingSessionListPayload = null;
 let _pendingSessionListApplyTimer = 0;
 const SESSION_LIST_INTERACTION_IDLE_MS = 700;
+const SESSION_SWIPE_DURATION_MS = 500;
+const SESSION_SWIPE_REFLOW_LEAD_MS = 220;
+const SESSION_REFLOW_TIMEOUT_MS = 420;
+const SESSION_LIST_FLIP_TIMEOUT_MS = 460;
+const SESSION_LONG_PRESS_DELAY_MS = 400;
+const SESSION_ARCHIVE_SWIPE_THRESHOLD_PX = 128;
+const SESSION_DELETE_SWIPE_THRESHOLD_PX = 128;
+const SESSION_SWIPE_CANCEL_RATIO = 0.75;
 
 function _formatSessionModelWithGateway(s){
   if(!s||!s.model)return'';
@@ -1607,6 +1615,89 @@ const _lineageReportCache = new Map();
 const _lineageReportInflight = new Map();
 let _lineageReportCacheGeneration = 0;
 let _sessionVisibleSidebarIds = [];
+let _pendingSessionReflowPositions = null;
+const _optimisticallyRemovedSessionIds = new Set();
+const _sessionSwipeReturnOffsets = new Map();
+
+function _captureSessionReflowPositions(){
+  const list=$('sessionList');
+  if(!list) return null;
+  const positions=new Map();
+  list.querySelectorAll('.session-item[data-sid]').forEach(row=>{
+    positions.set(row.dataset.sid,row.getBoundingClientRect().top);
+  });
+  return positions;
+}
+
+function _waitForSessionMotion(ms){
+  return new Promise(resolve=>setTimeout(resolve,ms));
+}
+
+function _playSessionRowsReflowFromPositions(before, timeoutMs, prefersReducedMotion){
+  if(!before||!before.size) return;
+  if(prefersReducedMotion&&prefersReducedMotion()) return;
+  const list=$('sessionList');
+  if(!list) return;
+  const movingRows=[];
+  list.querySelectorAll('.session-item[data-sid]').forEach(row=>{
+    const oldTop=before.get(row.dataset.sid);
+    if(oldTop===undefined) return;
+    const delta=oldTop-row.getBoundingClientRect().top;
+    if(Math.abs(delta)<1) return;
+    movingRows.push({row,delta});
+  });
+  if(!movingRows.length) return;
+  movingRows.forEach(({row,delta})=>{
+    row.style.transition='none';
+    row.style.setProperty('--session-reflow-offset',delta+'px');
+    row.classList.add('session-reflowing');
+  });
+  list.getBoundingClientRect();
+  movingRows.forEach(({row})=>{
+    let reflowCleared=false;
+    const clearReflow=()=>{
+      if(reflowCleared) return;
+      reflowCleared=true;
+      row.classList.remove('session-reflowing');
+      row.style.removeProperty('--session-reflow-offset');
+      row.removeEventListener('transitionend',onReflowEnd);
+    };
+    const onReflowEnd=(event)=>{
+      if(event.propertyName==='transform') clearReflow();
+    };
+    row.addEventListener('transitionend',onReflowEnd);
+    row.style.removeProperty('transition');
+    requestAnimationFrame(()=>requestAnimationFrame(()=>{
+      if(!reflowCleared) row.style.setProperty('--session-reflow-offset','0px');
+    }));
+    setTimeout(clearReflow,timeoutMs);
+  });
+}
+
+function _sessionPrefersReducedMotion(){
+  try{
+    return Boolean(window.matchMedia&&window.matchMedia('(prefers-reduced-motion: reduce)').matches);
+  }catch(_){
+    return false;
+  }
+}
+
+function _makeSessionSwipeAffordance(side, icon, label){
+  const affordance=document.createElement('div');
+  affordance.className='session-swipe-affordance session-swipe-affordance-'+side;
+  affordance.setAttribute('aria-hidden','true');
+  const stack=document.createElement('span');
+  stack.className='session-swipe-action-stack';
+  const badge=document.createElement('span');
+  badge.className='session-swipe-badge';
+  badge.innerHTML=li(icon,18);
+  const text=document.createElement('span');
+  text.className='session-swipe-label';
+  text.textContent=label;
+  stack.append(badge,text);
+  affordance.append(stack);
+  return affordance;
+}
 const SESSION_VIRTUAL_ROW_HEIGHT = 52;
 const SESSION_VIRTUAL_BUFFER_ROWS = 12;
 const SESSION_VIRTUAL_THRESHOLD_ROWS = 80;
@@ -1860,9 +1951,11 @@ function closeSessionActionMenu(){
     _sessionActionMenu = null;
   }
   if(_sessionActionAnchor){
-    _sessionActionAnchor.classList.remove('active');
+    if(_sessionActionAnchor.classList&&_sessionActionAnchor.classList.contains('session-actions-trigger')){
+      _sessionActionAnchor.classList.remove('active');
+    }
     const row=_sessionActionAnchor.closest('.session-item');
-    if(row) row.classList.remove('menu-open');
+    if(row) row.classList.remove('menu-open','long-pressing');
     _sessionActionAnchor = null;
   }
   _sessionActionSessionId = null;
@@ -1925,6 +2018,46 @@ function _appendSessionDuplicateAction(menu, session){
   ));
 }
 
+function _playSessionActionMenuEntrance(menu){
+  if(!menu) return;
+  const reduce=_sessionPrefersReducedMotion();
+  if(reduce) return;
+  if(typeof menu.animate==='function'){
+    try{
+      const anim=menu.animate(
+        [
+          {opacity:0, transform:'translate3d(0,-4px,0) scale(.985)'},
+          {opacity:1, transform:'translate3d(0,0,0) scale(1)'}
+        ],
+        {duration:450, easing:'cubic-bezier(.2,.8,.2,1)'}
+      );
+      if(anim&&anim.finished) anim.finished.catch(()=>{});
+      return;
+    }catch(_){}
+  }
+  menu.classList.add('open-animated');
+}
+
+async function _archiveSession(session, archived=true, beforeListRender=null){
+  if(_isReadOnlySession(session)){ if(typeof showToast==='function') showToast('Read-only imported sessions cannot be modified.',3000); return false; }
+  const reflowPositions=_captureSessionReflowPositions();
+  const renderHold=beforeListRender?Promise.resolve().then(beforeListRender):null;
+  try{
+    const response=await api('/api/session/archive',{method:'POST',body:JSON.stringify({session_id:session.session_id,archived})});
+    session.archived=archived;
+    const cached=(_allSessions||[]).find(s=>s&&s.session_id===session.session_id);
+    if(cached) cached.archived=archived;
+    if(S.session&&S.session.session_id===session.session_id) S.session.archived=archived;
+    showToast(session.archived?_sessionArchiveToast(response,session):t('session_restored'));
+    if(renderHold) await renderHold;
+    if(_showArchived&&!_sessionPrefersReducedMotion()) _sessionSwipeReturnOffsets.set(session.session_id,'0px');
+    _pendingSessionReflowPositions=reflowPositions;
+    renderSessionListFromCache();
+    void renderSessionList();
+    return true;
+  }catch(err){if(renderHold) await renderHold.catch(()=>{});_pendingSessionReflowPositions=null;showToast(t('session_archive_failed')+err.message);return false;}
+}
+
 function _openSessionActionMenu(session, anchorEl){
   if(_isReadOnlySession(session)){ if(typeof showToast==='function') showToast('Read-only imported sessions cannot be modified.',3000); return; }
   if(_sessionActionMenu && _sessionActionSessionId===session.session_id && _sessionActionAnchor===anchorEl){
@@ -1936,7 +2069,7 @@ function _openSessionActionMenu(session, anchorEl){
   const isCliSession = _isCliSession(session);
   const isExternalSession = isMessagingSession || isCliSession;
   const menu=document.createElement('div');
-  menu.className='session-action-menu open';
+  menu.className='session-action-menu';
   // Rename — first menu item by request (#1764). Double-click rename is
   // timing-sensitive: the first click frequently registers as "open the
   // chat" before the second click arrives, so users open the conversation
@@ -1998,14 +2131,7 @@ function _openSessionActionMenu(session, anchorEl){
     session.archived?ICONS.unarchive:ICONS.archive,
     async()=>{
       closeSessionActionMenu();
-      try{
-        const response=await api('/api/session/archive',{method:'POST',body:JSON.stringify({session_id:session.session_id,archived:!session.archived})});
-        _optimisticallyArchiveSessionInList(session.session_id,!session.archived);
-        session.archived=!session.archived;
-        if(S.session&&S.session.session_id===session.session_id) S.session.archived=session.archived;
-        void renderSessionList();
-        showToast(session.archived?_sessionArchiveToast(response,session):t('session_restored'));
-      }catch(err){showToast(t('session_archive_failed')+err.message);}
+      await _archiveSession(session,!session.archived);
     }
   ));
   if(isExternalSession && !session.archived){
@@ -2069,10 +2195,11 @@ function _openSessionActionMenu(session, anchorEl){
   _sessionActionMenu = menu;
   _sessionActionAnchor = anchorEl;
   _sessionActionSessionId = session.session_id;
-  anchorEl.classList.add('active');
+  if(anchorEl.classList&&anchorEl.classList.contains('session-actions-trigger')) anchorEl.classList.add('active');
   const row=anchorEl.closest('.session-item');
   if(row) row.classList.add('menu-open');
   _positionSessionActionMenu(anchorEl);
+  _playSessionActionMenuEntrance(menu);
 }
 
 document.addEventListener('click',e=>{
@@ -2109,48 +2236,6 @@ function animateNextSessionListRefresh(options={}){
   if(options&&options.enterAll) _sessionListEnterAllAnimationPending = true;
 }
 
-function _captureSessionListFlipPositions(){
-  const list=$('sessionList');
-  if(!list) return null;
-  const positions=new Map();
-  list.querySelectorAll('.session-item[data-sid]').forEach(row=>{
-    positions.set(row.dataset.sid,row.getBoundingClientRect().top);
-  });
-  return positions;
-}
-
-function _sessionListPrefersReducedMotion(){
-  try{return window.matchMedia&&window.matchMedia('(prefers-reduced-motion: reduce)').matches;}
-  catch(_){return false;}
-}
-
-function _playSessionListFlipAnimation(before){
-  if(!before||!before.size||_sessionListPrefersReducedMotion()) return;
-  const list=$('sessionList');
-  if(!list) return;
-  list.querySelectorAll('.session-item[data-sid]').forEach(row=>{
-    const oldTop=before.get(row.dataset.sid);
-    if(oldTop===undefined) return;
-    const delta=oldTop-row.getBoundingClientRect().top;
-    if(Math.abs(delta)<1) return;
-    row.style.setProperty('--session-reflow-offset',delta+'px');
-    row.classList.add('session-reflowing');
-    row.getBoundingClientRect();
-    row.style.setProperty('--session-reflow-offset','0px');
-    let cleared=false;
-    const clear=()=>{
-      if(cleared) return;
-      cleared=true;
-      row.classList.remove('session-reflowing');
-      row.style.removeProperty('--session-reflow-offset');
-      row.removeEventListener('transitionend',onEnd);
-    };
-    const onEnd=(event)=>{ if(event.propertyName==='transform') clear(); };
-    row.addEventListener('transitionend',onEnd);
-    setTimeout(clear,460);
-  });
-}
-
 function _isOptimisticFirstTurnSessionRow(s){
   if(!s||!s.session_id||s.archived) return false;
   const messageCount=Number(s.message_count||0);
@@ -2273,8 +2358,11 @@ function _applySessionListPayload(sessData, projData){
   if (typeof sessData.server_tz === 'string') {
     _serverTz = sessData.server_tz;
   }
-  _reconcileActiveSessionIdleStateFromList(sessData.sessions||[]);
-  _allSessions = _mergeOptimisticFirstTurnSessions(sessData.sessions||[]);
+  const serverSessions=_optimisticallyRemovedSessionIds.size
+    ? (sessData.sessions||[]).filter(s=>s&&!_optimisticallyRemovedSessionIds.has(s.session_id))
+    : (sessData.sessions||[]);
+  _reconcileActiveSessionIdleStateFromList(serverSessions);
+  _allSessions = _mergeOptimisticFirstTurnSessions(serverSessions);
   _clearLineageReportCache();
   _allProjects = projData.projects||[];
   _markPollingCompletionUnreadTransitions(_allSessions);
@@ -3394,7 +3482,9 @@ function renderSessionListFromCache(){
   _sessionListRefreshAnimationPending=false;
   const enterAllAnimatedRows=animateRefresh&&_sessionListEnterAllAnimationPending;
   _sessionListEnterAllAnimationPending=false;
-  const flipBefore=animateRefresh?_captureSessionListFlipPositions():null;
+  const flipBefore=animateRefresh?_captureSessionReflowPositions():null;
+  const committedSwipeDuration=_sessionPrefersReducedMotion()?0:SESSION_SWIPE_DURATION_MS;
+  const committedSwipeReflowDelay=Math.max(0,committedSwipeDuration-SESSION_SWIPE_REFLOW_LEAD_MS);
   const listScrollTopBeforeRender=list.scrollTop||0;
   list.innerHTML='';
   // Batch select bar (when in select mode)
@@ -3654,9 +3744,12 @@ function renderSessionListFromCache(){
     toggleBtn.onclick=(e)=>{e.stopPropagation();toggleSessionSelectMode();};
     list.appendChild(toggleBtn);
   }
-  if(animateRefresh){
-    _playSessionListFlipAnimation(flipBefore);
-  }
+  // Refresh FLIP and queued archive/delete reflow both drive
+  // --session-reflow-offset. Refresh wins so one render has one transform writer.
+  const reflowBefore=animateRefresh?flipBefore:_pendingSessionReflowPositions;
+  const reflowTimeout=animateRefresh?SESSION_LIST_FLIP_TIMEOUT_MS:SESSION_REFLOW_TIMEOUT_MS;
+  _pendingSessionReflowPositions=null;
+  _playSessionRowsReflowFromPositions(reflowBefore,reflowTimeout,_sessionPrefersReducedMotion);
   // Note: declared after the groups loop but available via function hoisting.
   function _renderOneSession(s, isPinnedGroup=false){
     const el=document.createElement('div');
@@ -3667,6 +3760,16 @@ function renderSessionListFromCache(){
     const hasUnread=_hasUnreadForSession(s)&&!isActive;
     const readOnly=_isReadOnlySession(s);
     el.className='session-item'+(isActive?' active':'')+(isActive&&S.session&&S.session._flash?' new-flash':'')+(s.archived?' archived':'')+(isStreaming?' streaming':'')+(hasUnread?' unread':'');
+    const swipeReturnOffset=_sessionSwipeReturnOffsets.get(s.session_id);
+    if(swipeReturnOffset!==undefined){
+      _sessionSwipeReturnOffsets.delete(s.session_id);
+      el.style.setProperty('--session-swipe-return-offset',swipeReturnOffset);
+      el.classList.add('session-swipe-returning');
+      el.addEventListener('animationend',()=>{
+        el.classList.remove('session-swipe-returning');
+        el.style.removeProperty('--session-swipe-return-offset');
+      },{once:true});
+    }
     if(animateRefresh&&(enterAllAnimatedRows||!(flipBefore&&flipBefore.has(s.session_id)))){
       el.classList.add('session-list-flip-enter');
     }
@@ -3996,6 +4099,9 @@ function renderSessionListFromCache(){
       menuBtn.setAttribute('aria-haspopup','menu');
       menuBtn.setAttribute('aria-label','Conversation actions');
       menuBtn.innerHTML=ICONS.more;
+      const stopMenuPointer=(e)=>e.stopPropagation();
+      menuBtn.onpointerdown=stopMenuPointer;
+      menuBtn.onpointerup=stopMenuPointer;
       menuBtn.onclick=(e)=>{
         e.stopPropagation();
         e.preventDefault();
@@ -4007,6 +4113,7 @@ function renderSessionListFromCache(){
     el.oncontextmenu=(e)=>{
       if(readOnly) return;
       e.preventDefault();
+      if(e.pointerType==='touch'||e.pointerType==='pen') return;
       e.stopPropagation();
       clearTimeout(_tapTimer);
       _tapTimer=null;
@@ -4015,78 +4122,242 @@ function renderSessionListFromCache(){
       _openSessionActionMenu(s, actions||el);
     };
 
-    // Use pointerup + manual double-tap detection instead of onclick/ondblclick.
+    if(!readOnly){
+      el.append(
+        _makeSessionSwipeAffordance('right',s.archived?'undo':'archive',s.archived?'Restore':t('session_batch_archive')),
+        _makeSessionSwipeAffordance('left','trash-2',t('session_batch_delete')),
+      );
+    }
+
+    // Use release events + manual double-tap detection instead of onclick/ondblclick.
     // onclick/ondblclick are unreliable on touch devices (iPad Safari especially):
     // hover-triggered layout shifts, ghost clicks, and 300ms delay all break
-    // single-tap navigation. pointerup fires immediately on both mouse & touch.
+    // single-tap navigation.
     // Mouse clicks are instant; touch presses need a 300ms delay to distinguish
     // a tap from a scroll-drag gesture on mobile.
-    // Drag detection (pointermove > 5px) cancels the pending tap on release.
+    // Movement promotes pressing into dragging; drag release cancels a pending tap.
     let _lastTapTime=0;
     let _tapTimer=null;
     let _pointerDownX=0;
     let _pointerDownY=0;
-    let _pointerActive=false;
-    let _isDragging=false;
+    let _gestureState='idle'; // idle | pressing | dragging | committed
     let _clearDragTimer=null;
-    const _clearPointerDragState=()=>{
-      _pointerActive=false;
-      if(_isDragging){
-        _isDragging=false;
-        if(_clearDragTimer){clearTimeout(_clearDragTimer);_clearDragTimer=null;}
-        _clearDragTimer=setTimeout(()=>{el.classList.remove('dragging');_clearDragTimer=null;},50);
-      }
+    let _longPressTimer=null;
+    let _longPressMenuOpened=false;
+    let _swipeTracking=false;
+    let _pointerX=0;
+    let _pointerY=0;
+    let _gesturePointerType='';
+    const _clearLongPressTimer=()=>{
+      if(_longPressTimer){clearTimeout(_longPressTimer);_longPressTimer=null;}
+      if(!_longPressMenuOpened) el.classList.remove('long-pressing');
     };
-    el.onpointerdown=(e)=>{
-      if(e.pointerType==='mouse' && e.button!==0) return;
-      _pointerActive=true;
-      _pointerDownX=e.clientX;
-      _pointerDownY=e.clientY;
-      _isDragging=false;
+    const _beginSessionGesture=(clientX,clientY,pointerType='')=>{
+      _gesturePointerType=pointerType;
+      _pointerDownX=clientX;
+      _pointerDownY=clientY;
+      _pointerX=clientX;
+      _pointerY=clientY;
+      _gestureState='pressing';
+      _swipeTracking=false;
+      _longPressMenuOpened=false;
       if(_clearDragTimer){clearTimeout(_clearDragTimer);_clearDragTimer=null;}
-      el.classList.remove('dragging');
+      el.classList.remove('dragging','swipe-committed','swipe-removing');
+      el.style.removeProperty('height');
+      el.style.removeProperty('min-height');
     };
-    el.onpointermove=(e)=>{
-      // Plain hover also dispatches pointermove. Only mark a row as dragging
-      // after an actual press starts on this row; otherwise hovered rows stay
-      // faded until the next sidebar rerender clears their DOM nodes.
-      if(!_pointerActive) return;
-      if(_isDragging) return;
-      const dx=Math.abs(e.clientX-_pointerDownX);
-      const dy=Math.abs(e.clientY-_pointerDownY);
-      if(dx>5||dy>5){
-        _isDragging=true;
-        el.classList.add('dragging');
-        // Cancel any pending drag-clear so we don't flash hover mid-drag
-        if(_clearDragTimer){clearTimeout(_clearDragTimer);_clearDragTimer=null;}
-      }
-    };
-    el.onpointercancel=_clearPointerDragState;
-    el.onpointerleave=()=>{ if(_pointerActive) _clearPointerDragState(); };
-    el.onpointerup=(e)=>{
-      if(e.pointerType==='mouse' && e.button!==0) return;  // ignore right/middle click
-      _pointerActive=false;
-      if(_renamingSid) return;
-      if(actions&&actions.contains(e.target)) return;
-      if(e.target&&e.target.closest&&e.target.closest('.session-child-count,.session-child-sessions,.session-child-session,.session-lineage-count,.session-lineage-segments,.session-lineage-segment')) return;
-      if(_sessionSelectMode){e.stopPropagation();if(!readOnly)toggleSessionSelect(s.session_id);return;}
-      // If the pointer moved enough to be a drag, cancel any pending tap
-      if(_isDragging){clearTimeout(_tapTimer);_tapTimer=null;_lastTapTime=0;_clearDragTimer=setTimeout(()=>{el.classList.remove('dragging');_clearDragTimer=null;},50);return;}
-      const now=Date.now();
-      if(now-_lastTapTime<350){
-        // Double-tap: rename
+    const _scheduleSessionLongPressMenu=()=>{
+      _clearLongPressTimer();
+      el.classList.add('long-pressing');
+      _longPressTimer=setTimeout(()=>{
+        if(_gestureState!=='pressing'||_renamingSid||_sessionSelectMode||readOnly) return;
+        _longPressMenuOpened=true;
         clearTimeout(_tapTimer);
         _tapTimer=null;
         _lastTapTime=0;
-        startRename();
+        _openSessionActionMenu(s, el);
+      },SESSION_LONG_PRESS_DELAY_MS);
+    };
+    const _isSessionSwipeTarget=()=>{
+      return _gesturePointerType!=='mouse'&&!readOnly&&!_renamingSid&&!_sessionSelectMode;
+    };
+    const _isSessionActionTarget=(target)=>{
+      return !!(actions&&target&&actions.contains(target));
+    };
+    const _trackHorizontalSwipe=(dx,dy)=>{
+      if(dx>8&&dx>dy*1.1) _swipeTracking=true;
+    };
+    const _promoteSessionDrag=(dx,dy)=>{
+      if(_gestureState!=='pressing'||(dx<=5&&dy<=5)) return;
+      if(dy>8||dx>10) _clearLongPressTimer();
+      _gestureState='dragging';
+      el.classList.add('dragging');
+      if(_clearDragTimer){clearTimeout(_clearDragTimer);_clearDragTimer=null;}
+    };
+    const _updateSessionGesture=(clientX,clientY)=>{
+      if(_gestureState==='idle') return false;
+      _pointerX=clientX;
+      _pointerY=clientY;
+      const signedDx=clientX-_pointerDownX;
+      const signedDy=clientY-_pointerDownY;
+      const dx=Math.abs(signedDx);
+      const dy=Math.abs(signedDy);
+      _promoteSessionDrag(dx,dy);
+      _trackHorizontalSwipe(dx,dy);
+      if(_isSessionSwipeTarget()&&(_swipeTracking||dx>dy)) _paintSessionSwipe(signedDx);
+      return _swipeTracking;
+    };
+    const _canSwipeDeleteSession=()=>{
+      return _isSessionSwipeTarget()&&!_isMessagingSession(s)&&!_isCliSession(s);
+    };
+    const _paintSessionSwipe=(signedDx)=>{
+      const rawOffset=signedDx*.55;
+      const revealedOffset=Math.max(-72,Math.min(72,rawOffset));
+      const overshoot=Math.max(0,Math.abs(rawOffset)-72);
+      const offset=Math.sign(rawOffset)*(Math.abs(revealedOffset)+Math.sqrt(overshoot)*5);
+      const progress=Math.min(1,Math.abs(revealedOffset)/72);
+      const reveal=Math.abs(offset);
+      const actionRevealScale=1.15;
+      const iconScale=Math.min(1,Math.max(.01,progress*actionRevealScale));
+      const badgeSize=34*iconScale;
+      const iconSize=18*iconScale;
+      const labelScale=Math.min(1,Math.max(.01,progress*actionRevealScale));
+      const actionOpacity=Math.min(1,Math.max(.01,progress*actionRevealScale));
+      const actionInset=6;
+      const tileGap=6;
+      const stretchStart=72/actionRevealScale;
+      const stretchProgress=Math.max(0,reveal-stretchStart);
+      const badgeStretch=Math.min(Math.max(0,reveal-34),stretchProgress*1.15,Math.max(0,reveal-badgeSize-actionInset-tileGap));
+      el.style.setProperty('--session-swipe-offset',offset+'px');
+      el.style.setProperty('--session-swipe-reveal',reveal+'px');
+      el.style.setProperty('--session-swipe-badge-size',badgeSize+'px');
+      el.style.setProperty('--session-swipe-icon-size',iconSize+'px');
+      el.style.setProperty('--session-swipe-label-scale',labelScale);
+      el.style.setProperty('--session-swipe-badge-stretch',badgeStretch+'px');
+      el.style.setProperty('--session-swipe-progress',actionOpacity);
+      el.classList.toggle('swiping-right',offset>0);
+      el.classList.toggle('swiping-left',offset<0);
+    };
+    const _clearSessionSwipePaint=()=>{
+      el.style.removeProperty('--session-swipe-offset');
+      el.style.removeProperty('--session-swipe-reveal');
+      el.style.removeProperty('--session-swipe-badge-size');
+      el.style.removeProperty('--session-swipe-icon-size');
+      el.style.removeProperty('--session-swipe-label-scale');
+      el.style.removeProperty('--session-swipe-badge-stretch');
+      el.style.removeProperty('--session-swipe-progress');
+      el.style.removeProperty('height');
+      el.style.removeProperty('min-height');
+      el.classList.remove('swiping-right','swiping-left','swipe-committed','swipe-removing');
+    };
+    const _settleSessionSwipePaint=()=>{
+      el.classList.remove('dragging');
+      requestAnimationFrame(()=>requestAnimationFrame(_clearSessionSwipePaint));
+    };
+    const _completeSessionSwipePaint=(signedDx)=>{
+      el.classList.remove('dragging');
+      el.classList.add('swipe-committed');
+      el.style.setProperty('--session-swipe-progress','0');
+      el.style.setProperty('--session-swipe-offset',(signedDx>0?1:-1)*window.innerWidth+'px');
+      const rect=el.getBoundingClientRect();
+      el.style.height=rect.height+'px';
+      el.style.minHeight=rect.height+'px';
+      requestAnimationFrame(()=>el.classList.add('swipe-removing'));
+    };
+    const _handleSessionSwipe=(signedDx,signedDy)=>{
+      if(_gestureState==='committed'||!_isSessionSwipeTarget()) return false;
+      const actionThreshold=signedDx>0?SESSION_ARCHIVE_SWIPE_THRESHOLD_PX:SESSION_DELETE_SWIPE_THRESHOLD_PX;
+      if(Math.abs(signedDx)<actionThreshold) return false;
+      if(Math.abs(signedDy)>Math.abs(signedDx)*SESSION_SWIPE_CANCEL_RATIO) return false;
+      _gestureState='committed';
+      _clearLongPressTimer();
+      clearTimeout(_tapTimer);
+      _tapTimer=null;
+      _lastTapTime=0;
+      if(signedDx>0){
+        if(s.archived){
+          _settleSessionSwipePaint();
+          _archiveSession(s,false,()=>_waitForSessionMotion(committedSwipeDuration)).then((restored)=>{
+            if(!restored) _settleSessionSwipePaint();
+          });
+        }else if(_showArchived){
+          _settleSessionSwipePaint();
+          _archiveSession(s,true,()=>_waitForSessionMotion(committedSwipeDuration)).then((archived)=>{
+            if(!archived) _settleSessionSwipePaint();
+          });
+        }else{
+          _completeSessionSwipePaint(signedDx);
+          _archiveSession(s,true,()=>_waitForSessionMotion(committedSwipeReflowDelay)).then((archived)=>{
+            if(!archived) _settleSessionSwipePaint();
+          });
+        }
+      }else if(_canSwipeDeleteSession()){
+        el.classList.remove('dragging');
+        deleteSession(s.session_id,async()=>{
+          _completeSessionSwipePaint(signedDx);
+          await _waitForSessionMotion(committedSwipeReflowDelay);
+        }).then((deleted)=>{
+          if(!deleted) _settleSessionSwipePaint();
+        });
+      }else if(typeof showToast==='function'){
+        showToast('Imported sessions cannot be deleted here.',3000);
+        _gestureState='dragging';
+        _settleSessionSwipePaint();
+      }
+      return true;
+    };
+    const _commitSessionSwipe=()=>{
+      return _handleSessionSwipe(_pointerX-_pointerDownX,_pointerY-_pointerDownY);
+    };
+    const _clearPointerDragState=()=>{
+      if(_gestureState==='committed'){
+        _clearLongPressTimer();
         return;
       }
+      const wasDragging=_gestureState==='dragging'||_swipeTracking;
+      _gestureState='idle';
+      _clearLongPressTimer();
+      if(wasDragging){
+        if(_clearDragTimer){clearTimeout(_clearDragTimer);_clearDragTimer=null;}
+        _clearDragTimer=setTimeout(()=>{_settleSessionSwipePaint();_clearDragTimer=null;},50);
+      }
+    };
+    const _finishSessionGesture=(clientX,clientY,target,pointerType)=>{
+      const wasDragging=_gestureState==='dragging'||_swipeTracking;
+      _clearLongPressTimer();
+      if(_renamingSid){_gestureState='idle';return false;}
+      if(_isSessionActionTarget(target)){_gestureState='idle';return false;}
+      _pointerX=clientX;
+      _pointerY=clientY;
+      _commitSessionSwipe();
+      if(_longPressMenuOpened){_gestureState='idle';return true;}
+      if(_gestureState==='committed') return true;
+      if(_sessionActionMenu&&!_sessionActionMenu.contains(target)){
+        closeSessionActionMenu();
+        return true;
+      }
+      if(target&&target.closest&&target.closest('.session-child-count,.session-child-sessions,.session-child-session,.session-lineage-count,.session-lineage-segments,.session-lineage-segment')) return false;
+      if(_sessionSelectMode){if(!readOnly)toggleSessionSelect(s.session_id);return true;}
+      if(wasDragging){
+        clearTimeout(_tapTimer);_tapTimer=null;_lastTapTime=0;
+        _gestureState='idle';
+        _clearDragTimer=setTimeout(()=>{_settleSessionSwipePaint();_clearDragTimer=null;},50);
+        return false;
+      }
+      _gestureState='idle';
+      const now=Date.now();
+      if(now-_lastTapTime<350){
+        clearTimeout(_tapTimer);
+        _tapTimer=null;
+        _lastTapTime=0;
+        el.classList.remove('loading');
+        startRename();
+        return false;
+      }
       _lastTapTime=now;
-      // Single tap: wait to ensure it's not the first of a double-tap,
-      // then navigate. Mouse is instant; touch needs delay to suppress
-      // accidental navigation during scroll-drag lifts.
       clearTimeout(_tapTimer);
-      const delay=e.pointerType==='mouse'?0:300;
+      const delay=pointerType==='mouse'?0:300;
+      if(pointerType!=='mouse') el.classList.add('loading');
       _tapTimer=setTimeout(async()=>{
         _tapTimer=null;
         _lastTapTime=0;
@@ -4097,10 +4368,43 @@ function renderSessionListFromCache(){
             await api('/api/session/import_cli',{method:'POST',body:JSON.stringify({session_id:s.session_id})});
           }catch(e){ /* import failed -- fall through to read-only view */ }
         }
-        if(($('sessionSearch').value||'').trim()) _hideSearchPreviewsAfterSelect=true;
-        await loadSession(s.session_id);renderSessionListFromCache();
-        if(typeof closeMobileSidebar==='function')closeMobileSidebar();
+        try{
+          if(($('sessionSearch').value||'').trim()) _hideSearchPreviewsAfterSelect=true;
+          await loadSession(s.session_id);renderSessionListFromCache();
+          if(typeof closeMobileSidebar==='function')closeMobileSidebar();
+        }finally{
+          el.classList.remove('loading');
+        }
       }, delay);
+      return false;
+    };
+    el.onpointerdown=(e)=>{
+      if(e.pointerType==='touch') return;
+      if(e.pointerType==='mouse' && e.button!==0) return;
+      if(_isSessionActionTarget(e.target)) return;
+      _beginSessionGesture(e.clientX,e.clientY,e.pointerType||'');
+      if(e.pointerType==='pen'){
+        _scheduleSessionLongPressMenu();
+      }
+    };
+    el.onpointermove=(e)=>{
+      if(e.pointerType==='touch') return;
+      // Plain hover also dispatches pointermove. Only mark a row as dragging
+      // after an actual press starts on this row; otherwise hovered rows stay
+      // faded until the next sidebar rerender clears their DOM nodes.
+      _updateSessionGesture(e.clientX,e.clientY);
+    };
+    el.onpointercancel=(e)=>{
+      if(e.pointerType==='touch') return;
+      _clearPointerDragState();
+    };
+    el.onpointerleave=()=>{
+      if(_gesturePointerType==='mouse'&&_gestureState!=='idle') _clearPointerDragState();
+    };
+    el.onpointerup=(e)=>{
+      if(e.pointerType==='touch') return;
+      if(e.pointerType==='mouse' && e.button!==0) return;  // ignore right/middle click
+      if(_finishSessionGesture(e.clientX,e.clientY,e.target,e.pointerType)) e.stopPropagation();
     };
     // Add ondblclick for more reliable double-click detection
     el.ondblclick=(e)=>{
@@ -4112,6 +4416,24 @@ function renderSessionListFromCache(){
       if (_loadingSessionId && _loadingSessionId !== s.session_id) return;
       startRename();
     };
+    el.addEventListener('touchstart',(e)=>{
+      if(_isSessionActionTarget(e.target)) return;
+      const touch=e.changedTouches&&e.changedTouches[0];
+      if(!touch) return;
+      _beginSessionGesture(touch.clientX,touch.clientY,'touch');
+      _scheduleSessionLongPressMenu();
+    },{passive:true});
+    el.addEventListener('touchmove',(e)=>{
+      const touch=e.changedTouches&&e.changedTouches[0];
+      if(!touch) return;
+      if(_updateSessionGesture(touch.clientX,touch.clientY)) e.preventDefault();
+    },{passive:false});
+    el.addEventListener('touchcancel',_clearPointerDragState,{passive:true});
+    el.addEventListener('touchend',(e)=>{
+      const touch=e.changedTouches&&e.changedTouches[0];
+      if(!touch) return;
+      if(_finishSessionGesture(touch.clientX,touch.clientY,e.target,'touch')) e.stopPropagation();
+    },{passive:true});
     return el;
   }
 }
@@ -4215,20 +4537,46 @@ async function removeWorktree(session){
   }
 }
 
-async function deleteSession(sid){
+async function deleteSession(sid, beforeDelete=null){
   const session=_sessionSnapshotById(sid);
   const ok=await showConfirmDialog({
     message:session&&session.worktree_path?t('session_delete_worktree_confirm',session.worktree_path):t('session_delete_confirm'),
     confirmLabel:t('delete_title'),
     danger:true
   });
-  if(!ok)return;
-  let response=null;
-  try{
-    response=await api('/api/session/delete',{method:'POST',body:JSON.stringify({session_id:sid})});
-    _optimisticallyRemoveSessionFromList(sid);
+  if(!ok)return false;
+  const reflowPositions=_captureSessionReflowPositions();
+  const beforeDeleteHold=beforeDelete?Promise.resolve().then(beforeDelete):null;
+  const previousSessions=_allSessions;
+  let optimisticRendered=false;
+  const deleteRequest=api('/api/session/delete',{method:'POST',body:JSON.stringify({session_id:sid})}).then(response=>{
     _clearHandoffStorageForSession(sid);
-  }catch(e){setStatus(`Delete failed: ${e.message}`);return;}
+    return {response};
+  }, error=>({error}));
+  if(beforeDeleteHold){
+    await beforeDeleteHold;
+    _optimisticallyRemovedSessionIds.add(sid);
+    _pendingSessionReflowPositions=reflowPositions;
+    _optimisticallyRemoveSessionFromList(sid);
+    optimisticRendered=true;
+  }
+  const deleteResult=await deleteRequest;
+  if(deleteResult&&deleteResult.error){
+    _pendingSessionReflowPositions=null;
+    if(optimisticRendered){
+      _optimisticallyRemovedSessionIds.delete(sid);
+      _allSessions=previousSessions;
+      renderSessionListFromCache();
+    }
+    const err=deleteResult.error;
+    setStatus(`Delete failed: ${err&&err.message?err.message:String(err)}`);
+    return false;
+  }
+  const response=deleteResult&&deleteResult.response;
+  if(!optimisticRendered){
+    _pendingSessionReflowPositions=reflowPositions;
+    _optimisticallyRemoveSessionFromList(sid);
+  }
   if(S.session&&S.session.session_id===sid){
     S.session=null;S.messages=[];S.entries=[];
     localStorage.removeItem('hermes-webui-session');
@@ -4247,7 +4595,9 @@ async function deleteSession(sid){
     }
   }
   showToast(_sessionResponseRetainsWorktree(response,session)?t('session_deleted_worktree'):t('session_deleted'));
-  void renderSessionList();
+  if(optimisticRendered) void renderSessionList().finally(()=>_optimisticallyRemovedSessionIds.delete(sid));
+  else await renderSessionList();
+  return true;
 }
 
 // ── Project helpers ─────────────────────────────────────────────────────
diff --git a/static/style.css b/static/style.css
index 15b6650b..90b36834 100644
--- a/static/style.css
+++ b/static/style.css
@@ -549,7 +549,6 @@
   :root:not(.dark) *{scrollbar-color:rgba(0,0,0,.15) transparent;}
   /* ── Light mode: sidebar, roles, chips, active states ── */
   :root:not(.dark) .session-item{color:var(--muted);}
-  :root:not(.dark) .session-item:hover{background:var(--hover-bg);color:var(--text);}
   :root:not(.dark) .session-item.active{background:var(--accent-bg);color:var(--accent-text);}
   :root:not(.dark) .session-item.active .session-title{color:var(--accent-text);}
   :root:not(.dark) .session-pin-indicator{color:var(--accent-text);}
@@ -724,17 +723,127 @@
      and attention indicator (26x26 at right:6px) still need 40px reserved
      when they're visible — covered by the hover / streaming / unread /
      menu-open / focus-within rule below. */
-  .session-item{padding:8px 8px;margin-bottom:2px;border-radius:8px;cursor:pointer;font-size:13px;color:var(--muted);transition:background .15s,color .15s,transform .36s cubic-bezier(.2,.8,.2,1);display:flex;align-items:flex-start;gap:8px;min-width:0;position:relative;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transform:translateY(var(--session-reflow-offset,0));}
+  .session-item{padding:8px 8px;margin-bottom:2px;border-radius:8px;cursor:pointer;font-size:13px;color:var(--muted);transition:background .15s,color .15s,transform .5s cubic-bezier(.22,.61,.36,1),box-shadow .15s ease;display:flex;align-items:flex-start;gap:8px;min-width:0;position:relative;touch-action:pan-y;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;transform:translate3d(var(--session-swipe-offset,0),var(--session-reflow-offset,0),0);}
   .session-item.streaming,.session-item.unread,.session-item:focus-within,.session-item.menu-open{padding-right:40px;}
-  .session-item:hover{background:var(--hover-bg);color:var(--text);}
+  @media (hover:hover){.session-item:hover{background:var(--hover-bg);color:var(--text);}}
+  .session-item.loading{background:var(--hover-bg);color:var(--text);}
+  .session-item.long-pressing{
+    background:var(--hover-bg);
+    color:var(--text);
+    box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 38%,transparent);
+    animation:session-long-press .4s cubic-bezier(.2,.8,.2,1) both;
+  }
+  .session-item.swiping-right{background:color-mix(in srgb,var(--warning) 16%,var(--surface));box-shadow:0 0 0 1px color-mix(in srgb,var(--warning) 48%,transparent);}
+  .session-item.swiping-left{background:color-mix(in srgb,var(--error) 14%,var(--surface));box-shadow:0 0 0 1px color-mix(in srgb,var(--error) 48%,transparent);}
+  .session-swipe-affordance{
+    position:absolute;
+    top:0;
+    bottom:0;
+    display:flex;
+    flex-direction:column;
+    align-items:center;
+    justify-content:center;
+    gap:0;
+    width:var(--session-swipe-reveal,0px);
+    padding:0;
+    box-sizing:border-box;
+    opacity:0;
+    overflow:hidden;
+    transform:translate3d(calc(-1 * var(--session-swipe-offset,0px)),0,0);
+    pointer-events:none;
+    z-index:0;
+  }
+  .session-swipe-affordance-right{
+    left:0;
+    color:#fff;
+    background:transparent;
+    border-radius:0;
+    align-items:flex-start;
+    transform-origin:left center;
+    --session-swipe-action-color:var(--warning);
+  }
+  .session-swipe-affordance-left{
+    right:0;
+    color:#fff;
+    background:transparent;
+    border-radius:0;
+    align-items:flex-end;
+    transform-origin:right center;
+    --session-swipe-action-color:var(--error);
+  }
+  .session-item.swiping-right .session-swipe-affordance-right,
+  .session-item.swiping-left .session-swipe-affordance-left{
+    opacity:var(--session-swipe-progress,0);
+  }
+  .session-text,.session-state-indicator,.session-actions{z-index:1;}
+  .session-swipe-action-stack{
+    width:calc(var(--session-swipe-badge-size,34px) + var(--session-swipe-badge-stretch,0px));
+    max-width:100%;
+    display:flex;
+    flex-direction:column;
+    align-items:center;
+    gap:3px;
+    flex:0 0 auto;
+  }
+  .session-swipe-badge{
+    width:calc(var(--session-swipe-badge-size,34px) + var(--session-swipe-badge-stretch,0px));
+    height:var(--session-swipe-badge-size,34px);
+    border-radius:999px;
+    background:var(--session-swipe-action-color);
+    display:flex;
+    align-items:center;
+    justify-content:center;
+    color:#fff;
+    flex:0 0 auto;
+    overflow:hidden;
+  }
+  .session-swipe-badge svg{
+    display:block;
+    width:var(--session-swipe-icon-size,18px);
+    height:var(--session-swipe-icon-size,18px);
+    stroke-width:2.2;
+  }
+  .session-swipe-label{
+    min-width:58px;
+    width:100%;
+    overflow:hidden;
+    text-overflow:ellipsis;
+    white-space:nowrap;
+    text-align:center;
+    color:var(--muted);
+    font-size:10px;
+    font-weight:600;
+    line-height:1;
+    transform:scale(var(--session-swipe-label-scale,1));
+    transform-origin:top center;
+  }
+  .session-swipe-affordance-right .session-swipe-action-stack{transform:translateX(6px);}
+  .session-swipe-affordance-left .session-swipe-action-stack{transform:translateX(-6px);}
+  .session-item.dragging{transition:background .15s,color .15s,box-shadow .15s ease;will-change:transform;}
+  .session-item.session-reflowing{transition:background .15s,color .15s,transform .36s cubic-bezier(.2,.8,.2,1),box-shadow .15s ease;will-change:transform;}
+  .session-item.swipe-committed,
+  .session-item.swipe-removing{transition:background .15s,color .15s,transform .5s cubic-bezier(.22,.61,.36,1),box-shadow .15s ease;will-change:transform;}
+  .session-item.swipe-removing{
+    overflow:hidden;
+  }
+  .session-item.session-swipe-returning{animation:sessionSwipeReturn .5s cubic-bezier(.22,.61,.36,1) both;will-change:transform,opacity;}
+  .session-item.swipe-committed .session-swipe-affordance{transition:opacity .18s ease,transform .18s ease;}
   /* Suppress hover highlight during drag to avoid visual noise mid-scroll */
   .session-item.dragging:hover{background:transparent;color:var(--muted);}
+  .session-item.dragging.swiping-right{background:color-mix(in srgb,var(--warning) 16%,var(--surface));}
+  .session-item.dragging.swiping-left{background:color-mix(in srgb,var(--error) 14%,var(--surface));}
   /* Restore hover padding-right only for mouse (hover:hover) devices.
      Touch/iPad (hover:none) must NOT expand padding-right on :hover —
      the expansion causes a layout-reflow mid-tap that moves session-actions
      under the finger, triggering stopPropagation and swallowing navigation. */
-  @media (hover:hover){.session-item:hover{padding-right:40px;}}
+  @media (hover:hover){:root:not(.dark) .session-item:hover{background:var(--hover-bg);color:var(--text);}.session-item:hover{padding-right:40px;}}
   .session-item.active{background:var(--accent-bg);color:var(--accent);}
+  .session-item.active.swiping-right{background:color-mix(in srgb,var(--warning) 20%,var(--accent-bg));}
+  .session-item.active.swiping-left{background:color-mix(in srgb,var(--error) 18%,var(--accent-bg));}
+  .session-item.archived .session-swipe-affordance-right{--session-swipe-action-color:var(--success);}
+  .session-item.archived.swiping-right,
+  .session-item.archived.dragging.swiping-right{background:color-mix(in srgb,var(--success) 16%,var(--surface));box-shadow:0 0 0 1px color-mix(in srgb,var(--success) 48%,transparent);}
+  .session-item.active.archived.swiping-right{background:color-mix(in srgb,var(--success) 20%,var(--accent-bg));}
   .session-item.streaming .session-title{color:var(--accent);}
   .session-item.streaming .session-title-row{color:var(--text);}
   .session-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px;overflow:hidden;}
@@ -798,8 +907,8 @@
   .session-actions-trigger:hover{background:var(--hover-bg);color:var(--text);}
   .session-actions-trigger.active{background:var(--accent-bg);border-color:var(--accent-bg-strong);color:var(--text);}
   .session-actions-trigger svg{display:block;}
-  .session-action-menu{display:block;position:fixed;left:0;top:0;right:auto;bottom:auto;min-width:220px;max-width:min(280px,calc(100vw - 16px));background:var(--surface);border:1px solid var(--border2);border-radius:10px;box-shadow:0 -4px 24px rgba(0,0,0,.4);z-index:999;overflow:hidden;max-height:320px;overflow-y:auto;}
-  .session-action-menu.open{display:block;}
+  .session-action-menu{display:block;position:fixed;left:0;top:0;right:auto;bottom:auto;min-width:220px;max-width:min(280px,calc(100vw - 16px));background:var(--surface);border:1px solid var(--border2);border-radius:10px;box-shadow:0 -4px 24px rgba(0,0,0,.4);z-index:999;overflow:hidden;max-height:calc(100vh - 16px);overflow-y:auto;transform-origin:top right;will-change:opacity,transform;}
+  .session-action-menu.open-animated{animation:session-menu-in .45s cubic-bezier(.2,.8,.2,1);}
   .session-action-opt{width:100%;background:none;border:none;text-align:left;font:inherit;color:var(--text);flex-direction:row!important;gap:0!important;padding:0!important;}
   .session-action-opt .ws-opt-action{display:flex;flex-direction:row;align-items:center;gap:10px;width:100%;padding:10px 14px;}
   .session-action-opt .ws-opt-icon{color:var(--muted);transition:color .12s,opacity .12s;flex-shrink:0;display:flex;align-items:center;width:16px;}
@@ -811,19 +920,22 @@
   .session-action-opt.is-disabled:hover{background:transparent;}
   .session-action-opt.danger:hover{background:rgba(239,83,80,.08);}
   .session-action-opt.danger .ws-opt-icon,.session-action-opt.danger .ws-opt-name{color:var(--error);}
+  @media (prefers-reduced-motion:reduce){
+    .session-action-menu{animation:none;will-change:auto;}
+    .session-item,.session-item.dragging,.session-item.session-reflowing,.session-item.swipe-committed,.session-item.swipe-removing{transition:none;}
+    .session-item.long-pressing,.session-item.session-swipe-returning{animation:none;}
+    .session-item.session-list-flip-enter{animation:none;}
+  }
   /* Hide overlay during inline rename */
   .session-item:has(.session-title-input) .session-actions{display:none;}
+  @keyframes session-menu-in{from{opacity:0;transform:translate3d(0,-4px,0) scale(.985);}to{opacity:1;transform:translate3d(0,0,0) scale(1);}}
+  @keyframes session-long-press{from{filter:brightness(1);}to{filter:brightness(1.08);}}
+  @keyframes sessionSwipeReturn{0%{opacity:.62;transform:translate3d(var(--session-swipe-return-offset,32px),var(--session-reflow-offset,0),0) scale(.985);}100%{opacity:1;transform:translate3d(0,var(--session-reflow-offset,0),0) scale(1);}}
   @keyframes newflash{0%{background:var(--accent-bg-strong);color:var(--accent);}100%{background:transparent;color:var(--muted);}}
   @keyframes sessionListFlipIn{0%{opacity:0;transform:perspective(700px) rotateX(-8deg) translateY(10px) scale(.985);}100%{opacity:1;transform:perspective(700px) rotateX(0) translateY(0) scale(1);}}
   @keyframes spin{to{transform:rotate(360deg);}}
   .session-item.new-flash{animation:newflash 1.4s ease-out forwards;}
-  .session-item.session-reflowing{transition:background .15s,color .15s,transform .36s cubic-bezier(.2,.8,.2,1);will-change:transform;}
   .session-item.session-list-flip-enter{animation:sessionListFlipIn .28s cubic-bezier(.2,.8,.2,1) backwards;transform-origin:center top;}
-  @media (prefers-reduced-motion: reduce){
-    .session-item,
-    .session-item.session-reflowing{transition:background .15s,color .15s;}
-    .session-item.session-list-flip-enter{animation:none;}
-  }
   /* Collapsible date group headers */
   .session-date-header{display:flex;align-items:center;gap:5px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding:8px 10px 4px;cursor:pointer;user-select:none;opacity:.8;transition:opacity .15s;}
   .session-date-header:hover{opacity:1;}
@@ -2004,6 +2116,13 @@
     .suggestion{font-size:12px;padding:10px 12px;}
   }
 
+  @media (hover:none) and (pointer:coarse){
+    .session-actions{display:none;}
+    .session-item{padding-right:6px;}
+    .session-item.streaming,.session-item.unread{padding-right:40px;}
+    .session-item:focus-within,.session-item.menu-open{padding-right:6px;}
+  }
+
   @media (max-width: 340px){
     /* Extreme legacy-phone widths (e.g. 320px) cannot fit five 44px
        left-side touch targets plus the fixed send button with the normal
diff --git a/tests/conftest.py b/tests/conftest.py
index 5982dd12..57ca4ba9 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -74,6 +74,15 @@ os.environ['HERMES_BASE_HOME'] = str(TEST_STATE_DIR)
 # tests that read/write config.yaml stay inside the isolated test home.
 os.environ['HERMES_CONFIG_PATH'] = str(TEST_STATE_DIR / 'config.yaml')
 
+
+@pytest.fixture(autouse=True)
+def _isolate_hermes_config_path():
+    """Keep profile/.env side effects from leaking the live config path across tests."""
+    isolated_config_path = str(TEST_STATE_DIR / 'config.yaml')
+    os.environ['HERMES_CONFIG_PATH'] = isolated_config_path
+    yield
+    os.environ['HERMES_CONFIG_PATH'] = isolated_config_path
+
 # ── Server script: always relative to repo root ───────────────────────────
 SERVER_SCRIPT = REPO_ROOT / 'server.py'
 if not SERVER_SCRIPT.exists():
diff --git a/tests/test_issue2454_active_session_spinner.py b/tests/test_issue2454_active_session_spinner.py
index 33a3f242..dd6bb357 100644
--- a/tests/test_issue2454_active_session_spinner.py
+++ b/tests/test_issue2454_active_session_spinner.py
@@ -55,14 +55,16 @@ def test_active_session_idle_reconcile_clears_stale_busy_and_inflight_state():
 def test_session_list_payload_reconciles_active_idle_state_before_optimistic_merge_and_render():
     body = _function_body(SESSIONS_SRC, "function _applySessionListPayload(")
 
-    reconcile_pos = body.find("_reconcileActiveSessionIdleStateFromList(sessData.sessions||[])")
+    filter_pos = body.find("const serverSessions=_optimisticallyRemovedSessionIds.size")
+    reconcile_pos = body.find("_reconcileActiveSessionIdleStateFromList(serverSessions)")
     merge_pos = body.find("_allSessions = _mergeOptimisticFirstTurnSessions")
     render_pos = body.find("renderSessionListFromCache()")
 
+    assert filter_pos != -1, "payload application must filter optimistic removals before row reconciliation"
     assert reconcile_pos != -1, "active-session idle reconciliation must run for refreshed rows"
     assert merge_pos != -1, "session rows must still be applied from /api/sessions"
     assert render_pos != -1, "payload application must still render from cache"
-    assert reconcile_pos < merge_pos < render_pos, (
+    assert filter_pos < reconcile_pos < merge_pos < render_pos, (
         "local S.busy/INFLIGHT state must be reconciled against raw server rows "
         "before optimistic merging can re-label a stale active session as streaming"
     )
diff --git a/tests/test_issue856_pinned_indicator_layout.py b/tests/test_issue856_pinned_indicator_layout.py
index 93b2d644..b7c13056 100644
--- a/tests/test_issue856_pinned_indicator_layout.py
+++ b/tests/test_issue856_pinned_indicator_layout.py
@@ -118,10 +118,10 @@ def test_timestamp_hidden_when_attention_state_is_present():
 
 def test_plain_mouse_hover_does_not_mark_session_row_dragging():
     """Pointermove fires during ordinary hover; drag styling must require an active press."""
-    assert "let _pointerActive=false;" in SESSIONS_JS
-    assert "_pointerActive=true;" in SESSIONS_JS
-    assert "if(!_pointerActive) return;" in SESSIONS_JS
-    assert "_pointerActive=false;" in SESSIONS_JS
+    assert "let _gestureState='idle';" in SESSIONS_JS
+    assert "_gestureState='pressing';" in SESSIONS_JS
+    assert "if(_gestureState==='idle') return false;" in SESSIONS_JS
+    assert "_gestureState='idle';" in SESSIONS_JS
     assert ".session-item.dragging:hover" in STYLE_CSS
 
 
diff --git a/tests/test_profile_switch_ux.py b/tests/test_profile_switch_ux.py
index 4f0cb6e8..9dbe6597 100644
--- a/tests/test_profile_switch_ux.py
+++ b/tests/test_profile_switch_ux.py
@@ -1,11 +1,10 @@
 """
-Tests for profile-switch UX improvements — spinner indicator + parallelized fetches.
+Tests for profile-switch UX improvements.
 
-Two changes:
-1. switchToProfile() shows a spinner on the profile chip during the async switch,
-   with an optimistic name update and error revert.
-2. loadWorkspaceList() refreshes in the background and the model catalog is
-   invalidated for lazy refresh instead of holding the visible switch animation open.
+Covered behavior:
+- switchToProfile() shows a spinner during the async switch and reverts on error.
+- Non-visible refresh work runs after the visible switch completes.
+- Session-list refreshes animate rows with row-level FLIP motion.
 """
 import re
 from pathlib import Path
@@ -165,42 +164,33 @@ class TestProfileSessionListFlip:
     JS = (REPO_ROOT / "static" / "sessions.js").read_text(encoding="utf-8")
     CSS = (REPO_ROOT / "static" / "style.css").read_text(encoding="utf-8")
 
-    def test_profile_refresh_captures_row_positions(self):
-        assert "function _captureSessionListFlipPositions()" in self.JS
-        start = self.JS.index("function _captureSessionListFlipPositions()")
-        end = self.JS.index("function _sessionListPrefersReducedMotion()", start)
-        fn = self.JS[start:end]
-        assert "querySelectorAll('.session-item[data-sid]')" in fn
-        assert "positions.set(row.dataset.sid,row.getBoundingClientRect().top);" in fn
-
-    def test_profile_refresh_reflows_existing_rows(self):
-        assert "function _playSessionListFlipAnimation(before)" in self.JS
-        start = self.JS.index("function _playSessionListFlipAnimation(before)")
-        end = self.JS.index("function _isOptimisticFirstTurnSessionRow(s)", start)
-        fn = self.JS[start:end]
-        assert "const delta=oldTop-row.getBoundingClientRect().top;" in fn
-        assert "row.style.setProperty('--session-reflow-offset',delta+'px');" in fn
-        assert "row.classList.add('session-reflowing');" in fn
-
     def test_profile_refresh_flips_new_rows(self):
         assert "session-list-flip-enter" in self.JS
         assert "@keyframes sessionListFlipIn" in self.CSS
-        assert "rotateX" in self.CSS
 
     def test_profile_refresh_captures_before_render_and_plays_after_rows_exist(self):
-        capture = self.JS.index("const flipBefore=animateRefresh?_captureSessionListFlipPositions():null;")
+        capture = self.JS.index("const flipBefore=animateRefresh?_captureSessionReflowPositions():null;")
         clear = self.JS.index("list.innerHTML='';", capture)
         row_render = self.JS.index("body.appendChild(_renderOneSession", clear)
-        play = self.JS.index("_playSessionListFlipAnimation(flipBefore);", row_render)
+        play = self.JS.index("_playSessionRowsReflowFromPositions(reflowBefore,reflowTimeout,_sessionPrefersReducedMotion);", row_render)
 
         assert capture < clear < row_render < play
 
+    def test_profile_refresh_drops_queued_reflow_before_playing_flip(self):
+        start = self.JS.index("// Refresh FLIP and queued archive/delete reflow both drive")
+        end = self.JS.index("// Note: declared after the groups loop", start)
+        block = self.JS[start:end]
+
+        assert "const reflowBefore=animateRefresh?flipBefore:_pendingSessionReflowPositions;" in block
+        assert "const reflowTimeout=animateRefresh?SESSION_LIST_FLIP_TIMEOUT_MS:SESSION_REFLOW_TIMEOUT_MS;" in block
+        assert "_pendingSessionReflowPositions=null;" in block
+        assert "_playSessionRowsReflowFromPositions(reflowBefore,reflowTimeout,_sessionPrefersReducedMotion);" in block
+        assert block.index("const reflowBefore=animateRefresh?flipBefore:_pendingSessionReflowPositions;") < block.index("const reflowTimeout=animateRefresh?SESSION_LIST_FLIP_TIMEOUT_MS:SESSION_REFLOW_TIMEOUT_MS;")
+        assert block.index("const reflowTimeout=animateRefresh?SESSION_LIST_FLIP_TIMEOUT_MS:SESSION_REFLOW_TIMEOUT_MS;") < block.index("_pendingSessionReflowPositions=null;")
+        assert block.index("_pendingSessionReflowPositions=null;") < block.index("_playSessionRowsReflowFromPositions(reflowBefore,reflowTimeout,_sessionPrefersReducedMotion);")
+
     def test_first_non_empty_session_render_is_animated(self):
         assert "_sessionListFirstRenderAnimated" in self.JS
         assert "animateNextSessionListRefresh({enterAll:true});" in self.JS
         assert "_sessionListFirstRenderAnimated=true;" in self.JS
-        assert "if(S&&S._bootReady) _sessionListFirstRenderAnimated=true;" not in self.JS
         assert "enterAllAnimatedRows" in self.JS
-
-    def test_profile_refresh_is_not_whole_list_fade(self):
-        assert "session-list.profile-refresh" not in self.CSS
diff --git a/tests/test_session_action_menu_regression.py b/tests/test_session_action_menu_regression.py
index 136b5882..05de2c55 100644
--- a/tests/test_session_action_menu_regression.py
+++ b/tests/test_session_action_menu_regression.py
@@ -33,24 +33,27 @@ def test_session_list_refresh_does_not_close_open_conversation_actions():
 
 def test_archive_action_repaints_sidebar_before_full_refresh():
     """Archive should hide the row from cached sidebar state before /api/sessions returns."""
-    body = _function_block(SESSIONS_JS, "_openSessionActionMenu")
+    menu_body = _function_block(SESSIONS_JS, "_openSessionActionMenu")
+    helper_body = _function_block(SESSIONS_JS, "_archiveSession")
 
     api_call = "const response=await api('/api/session/archive'"
-    optimistic = "_optimisticallyArchiveSessionInList(session.session_id,!session.archived);"
+    optimistic = "if(cached) cached.archived=archived;"
+    cached_render = "renderSessionListFromCache();"
     full_refresh = "void renderSessionList();"
 
-    assert optimistic in body
-    assert body.index(api_call) < body.index(optimistic) < body.index(full_refresh)
+    assert "await _archiveSession(session,!session.archived);" in menu_body
+    assert optimistic in helper_body
+    assert helper_body.index(api_call) < helper_body.index(optimistic) < helper_body.index(cached_render) < helper_body.index(full_refresh)
 
 
 def test_delete_action_repaints_sidebar_before_loading_remaining_sessions():
     """Delete should remove the row locally before loading replacement session data."""
     body = _function_block(SESSIONS_JS, "deleteSession")
 
-    api_call = "response=await api('/api/session/delete'"
+    api_call = "const deleteRequest=api('/api/session/delete'"
     optimistic = "_optimisticallyRemoveSessionFromList(sid);"
     remaining_fetch = "const remaining=await api('/api/sessions');"
-    full_refresh = "void renderSessionList();"
+    full_refresh = "await renderSessionList();"
 
     assert optimistic in body
     assert body.index(api_call) < body.index(optimistic) < body.index(full_refresh)
diff --git a/tests/test_session_touch_actions.py b/tests/test_session_touch_actions.py
new file mode 100644
index 00000000..5cacb3c5
--- /dev/null
+++ b/tests/test_session_touch_actions.py
@@ -0,0 +1,276 @@
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parent.parent
+SESSIONS_JS = (ROOT / "static" / "sessions.js").read_text(encoding="utf-8")
+STYLE_CSS = (ROOT / "static" / "style.css").read_text(encoding="utf-8")
+
+
+def _block(source: str, start_marker: str, end_marker: str) -> str:
+    start = source.find(start_marker)
+    assert start != -1, f"{start_marker!r} not found"
+    end = source.find(end_marker, start)
+    assert end != -1, f"{end_marker!r} not found after {start_marker!r}"
+    return source[start:end]
+
+
+def _sessions_block(start_marker: str, end_marker: str) -> str:
+    return _block(SESSIONS_JS, start_marker, end_marker)
+
+
+def test_session_menu_uses_viewport_height_not_fixed_scroll_cap():
+    assert "max-height:calc(100vh - 16px)" in STYLE_CSS
+    session_menu = STYLE_CSS[STYLE_CSS.find(".session-action-menu{"):STYLE_CSS.find(".session-action-menu.open")]
+    assert "max-height:320px" not in session_menu
+
+
+def test_session_menu_respects_motion_preferences():
+    session_menu = STYLE_CSS[STYLE_CSS.find(".session-action-menu{"):STYLE_CSS.find(".session-action-menu.open")]
+    assert "will-change:opacity,transform" in session_menu
+    assert "function _playSessionActionMenuEntrance(menu){" in SESSIONS_JS
+    assert "menu.classList.add('open-animated')" in SESSIONS_JS
+    assert "@media (prefers-reduced-motion:reduce)" in STYLE_CSS
+    assert ".session-action-menu{animation:none;will-change:auto;}" in STYLE_CSS
+
+
+def test_mobile_session_menu_opens_from_long_press_and_hides_dots():
+    assert "const SESSION_LONG_PRESS_DELAY_MS = 400;" in SESSIONS_JS
+    assert "el.classList.add('long-pressing')" in SESSIONS_JS
+    assert "if(!_longPressMenuOpened) el.classList.remove('long-pressing')" in SESSIONS_JS
+    assert "row.classList.remove('menu-open','long-pressing')" in SESSIONS_JS
+    assert "_openSessionActionMenu(s, el)" in SESSIONS_JS
+    assert "@media (hover:none) and (pointer:coarse)" in STYLE_CSS
+    assert ".session-actions{display:none;}" in STYLE_CSS
+    assert "const _beginSessionGesture=(clientX,clientY,pointerType='')=>{" in SESSIONS_JS
+    assert "const _scheduleSessionLongPressMenu=()=>{" in SESSIONS_JS
+    mobile_touch = STYLE_CSS[STYLE_CSS.find("@media (hover:none) and (pointer:coarse)"):STYLE_CSS.find("@media (max-width: 340px)")]
+    assert ".session-item{padding-right:6px;}" in mobile_touch
+    assert ".session-item.streaming,.session-item.unread{padding-right:40px;}" in mobile_touch
+    assert ".session-item:focus-within,.session-item.menu-open{padding-right:6px;}" in mobile_touch
+
+
+def test_open_session_menu_consumes_next_row_activation():
+    context_menu = _sessions_block("el.oncontextmenu=(e)=>{", "// Use release events")
+    assert SESSIONS_JS.count("el.oncontextmenu=(e)=>{") == 1
+    assert "if(e.pointerType==='touch'||e.pointerType==='pen') return;" in context_menu
+    assert "_openSessionActionMenu(s, actions||el);" in context_menu
+    assert "if(_sessionActionMenu&&!_sessionActionMenu.contains(target)){" in SESSIONS_JS
+    assert "closeSessionActionMenu();" in SESSIONS_JS
+    assert "e.stopPropagation();" in SESSIONS_JS
+    assert "const stopMenuPointer=(e)=>e.stopPropagation();" in SESSIONS_JS
+    assert "menuBtn.onpointerdown=stopMenuPointer;" in SESSIONS_JS
+    assert "menuBtn.onpointerup=stopMenuPointer;" in SESSIONS_JS
+    menu_btn_idx = SESSIONS_JS.find("menuBtn.onpointerdown=stopMenuPointer;")
+    menu_click_idx = SESSIONS_JS.find("menuBtn.onclick=(e)=>{", menu_btn_idx)
+    assert menu_btn_idx > 0 and menu_click_idx > menu_btn_idx
+    assert "const _isSessionActionTarget=(target)=>{" in SESSIONS_JS
+    assert "return !!(actions&&target&&actions.contains(target));" in SESSIONS_JS
+    assert "if(_isSessionActionTarget(e.target)) return;" in SESSIONS_JS
+    assert "if(_isSessionActionTarget(target)){_gestureState='idle';return false;}" in SESSIONS_JS
+    assert "if(_longPressMenuOpened){_gestureState='idle';return true;}" in SESSIONS_JS
+    finish_idx = SESSIONS_JS.find("const _finishSessionGesture=(clientX,clientY,target,pointerType)=>{")
+    dismiss_idx = SESSIONS_JS.find("if(_sessionActionMenu&&!_sessionActionMenu.contains(target)){", finish_idx)
+    load_idx = SESSIONS_JS.find("await loadSession(s.session_id)", finish_idx)
+    pointerup_idx = SESSIONS_JS.find("el.onpointerup=(e)=>{")
+    assert finish_idx > 0 and load_idx > finish_idx
+    assert dismiss_idx > finish_idx and dismiss_idx < load_idx
+    assert "if(_finishSessionGesture(e.clientX,e.clientY,e.target,e.pointerType)) e.stopPropagation();" in SESSIONS_JS[pointerup_idx:]
+
+
+def test_session_swipes_route_archive_restore_and_delete():
+    assert "_gesturePointerType!=='mouse'" in SESSIONS_JS
+    assert "_swipeTracking=true" in SESSIONS_JS
+    assert "const SESSION_ARCHIVE_SWIPE_THRESHOLD_PX = 128;" in SESSIONS_JS
+    assert "const SESSION_DELETE_SWIPE_THRESHOLD_PX = 128;" in SESSIONS_JS
+    assert "const SESSION_SWIPE_DURATION_MS = 500;" in SESSIONS_JS
+    assert "const SESSION_SWIPE_REFLOW_LEAD_MS = 220;" in SESSIONS_JS
+    swipe_block = _sessions_block("const _handleSessionSwipe=(signedDx,signedDy)=>{", "const _commitSessionSwipe=()=>{")
+    assert "const actionThreshold=signedDx>0?SESSION_ARCHIVE_SWIPE_THRESHOLD_PX:SESSION_DELETE_SWIPE_THRESHOLD_PX;" in SESSIONS_JS
+    assert "if(Math.abs(signedDx)<actionThreshold) return false;" in SESSIONS_JS
+    assert "const _updateSessionGesture=(clientX,clientY)=>{" in SESSIONS_JS
+    assert "if(_isSessionSwipeTarget()&&(_swipeTracking||dx>dy)) _paintSessionSwipe(signedDx)" in SESSIONS_JS
+    assert "if(_updateSessionGesture(touch.clientX,touch.clientY)) e.preventDefault();" in SESSIONS_JS
+    assert "_beginSessionGesture(touch.clientX,touch.clientY,'touch');" in SESSIONS_JS
+    restore_start = swipe_block.find("if(s.archived){")
+    archive_start = swipe_block.find("}else{", restore_start)
+    delete_start = swipe_block.find("}else if(_canSwipeDeleteSession()){", archive_start)
+    restore_branch = swipe_block[restore_start:archive_start]
+    archive_branch = swipe_block[archive_start:delete_start]
+    delete_branch = swipe_block[delete_start:]
+    assert "_settleSessionSwipePaint();" in restore_branch
+    assert "_completeSessionSwipePaint(signedDx);" not in restore_branch
+    assert "_archiveSession(s,false,()=>_waitForSessionMotion(committedSwipeDuration))" in restore_branch
+    archived_visible_start = swipe_block.find("}else if(_showArchived){")
+    assert archived_visible_start > restore_start
+    archived_visible_branch = swipe_block[archived_visible_start:archive_start]
+    assert "_settleSessionSwipePaint();" in archived_visible_branch
+    assert "_completeSessionSwipePaint(signedDx);" not in archived_visible_branch
+    assert "_archiveSession(s,true,()=>_waitForSessionMotion(committedSwipeDuration))" in archived_visible_branch
+    assert archive_branch.find("_completeSessionSwipePaint(signedDx);") < archive_branch.find("_archiveSession(s,true,()=>_waitForSessionMotion(committedSwipeReflowDelay))")
+    assert delete_branch.find("deleteSession(s.session_id,async()=>{") < delete_branch.find("_completeSessionSwipePaint(signedDx);")
+    assert "showToast('Imported sessions cannot be deleted here.',3000);" in SESSIONS_JS
+    assert "let _gestureState='idle';" in SESSIONS_JS
+    assert SESSIONS_JS.count("if(e.pointerType==='touch') return;") >= 3
+    assert "if(_gesturePointerType==='mouse'&&_gestureState!=='idle') _clearPointerDragState();" in SESSIONS_JS
+
+
+def test_session_swipe_paint_uses_transform_only_exit():
+    paint = _sessions_block("const _paintSessionSwipe=(signedDx)=>{", "const _clearSessionSwipePaint=()=>{")
+    clear = _sessions_block("const _clearSessionSwipePaint=()=>{", "const _settleSessionSwipePaint=()=>{")
+    complete = _sessions_block("const _completeSessionSwipePaint=(signedDx)=>{", "const _handleSessionSwipe=(signedDx,signedDy)=>{")
+    assert "--session-swipe-offset" in paint
+    assert "--session-swipe-reveal" in paint
+    assert "--session-swipe-progress" in paint
+    assert "--session-swipe-badge-stretch" in paint
+    assert "const reveal=Math.abs(offset);" in paint
+    assert "const actionRevealScale=1.15;" in paint
+    assert "const iconScale=Math.min(1,Math.max(.01,progress*actionRevealScale));" in paint
+    assert "const badgeSize=34*iconScale;" in paint
+    assert "const iconSize=18*iconScale;" in paint
+    assert "const labelScale=Math.min(1,Math.max(.01,progress*actionRevealScale));" in paint
+    assert "const actionOpacity=Math.min(1,Math.max(.01,progress*actionRevealScale));" in paint
+    assert "const actionInset=6;" in paint
+    assert "const tileGap=6;" in paint
+    assert "const stretchStart=72/actionRevealScale;" in paint
+    assert "const stretchProgress=Math.max(0,reveal-stretchStart);" in paint
+    assert "const badgeStretch=Math.min(Math.max(0,reveal-34),stretchProgress*1.15,Math.max(0,reveal-badgeSize-actionInset-tileGap));" in paint
+    assert "el.style.setProperty('--session-swipe-badge-size',badgeSize+'px');" in paint
+    assert "el.style.setProperty('--session-swipe-icon-size',iconSize+'px');" in paint
+    assert "el.style.setProperty('--session-swipe-label-scale',labelScale);" in paint
+    assert "el.style.setProperty('--session-swipe-progress',actionOpacity);" in paint
+    assert "Math.pow(progress,1.5)" not in paint
+    assert "window.innerWidth+'px'" in complete
+    assert "el.style.height=rect.height+'px'" in complete
+    assert "requestAnimationFrame(()=>el.classList.add('swipe-removing'))" in complete
+    assert "requestAnimationFrame(()=>requestAnimationFrame(_clearSessionSwipePaint))" in SESSIONS_JS
+    assert "el.classList.remove('swiping-right','swiping-left','swipe-committed','swipe-removing')" in clear
+    assert "el.style.removeProperty('--session-swipe-badge-size');" in clear
+    assert "el.style.removeProperty('--session-swipe-icon-size');" in clear
+    assert "el.style.removeProperty('--session-swipe-label-scale');" in clear
+    assert "el.style.removeProperty('--session-swipe-badge-stretch');" in clear
+    assert ".session-item.swipe-committed,\n  .session-item.swipe-removing{transition:" in STYLE_CSS
+    assert "transform:translate3d(calc(-1 * var(--session-swipe-offset,0px)),0,0)" in STYLE_CSS
+    assert "transform:scale(var(--session-swipe-icon-scale,1))" not in STYLE_CSS
+    swipe_start = STYLE_CSS.find(".session-item.swipe-removing{")
+    swipe_end = STYLE_CSS.find("}", swipe_start)
+    assert swipe_start >= 0 and swipe_end > swipe_start
+    swipe_removing = STYLE_CSS[swipe_start:swipe_end]
+    assert "height:0" not in swipe_removing
+    assert "padding-top:0" not in swipe_removing
+    assert "margin-bottom:0" not in swipe_removing
+    assert "transform:translate3d(var(--session-swipe-offset,0),var(--session-reflow-offset,0),0)" in STYLE_CSS
+
+
+def test_session_swipe_actions_use_circular_icon_badges():
+    right_start = STYLE_CSS.find(".session-swipe-affordance-right{")
+    left_start = STYLE_CSS.find(".session-swipe-affordance-left{")
+    badge_start = STYLE_CSS.find(".session-swipe-badge{")
+    right = STYLE_CSS[right_start:left_start]
+    left = STYLE_CSS[left_start:STYLE_CSS.find(".session-item.swiping-right", left_start)]
+    badge = STYLE_CSS[badge_start:STYLE_CSS.find(".session-swipe-badge svg", badge_start)]
+    assert "background:transparent" in right
+    assert "background:transparent" in left
+    assert "align-items:flex-start" in right
+    assert "align-items:flex-end" in left
+    assert "--session-swipe-action-color:var(--warning)" in right
+    assert "--session-swipe-action-color:var(--error)" in left
+    assert "width:calc(var(--session-swipe-badge-size,34px) + var(--session-swipe-badge-stretch,0px))" in badge
+    assert "height:var(--session-swipe-badge-size,34px)" in badge
+    assert "border-radius:999px" in badge
+    assert "background:var(--session-swipe-action-color)" in badge
+    assert "overflow:hidden" in badge
+    assert ".session-item.archived .session-swipe-affordance-right{--session-swipe-action-color:var(--success);}" in STYLE_CSS
+    assert "_makeSessionSwipeAffordance('right',s.archived?'undo':'archive',s.archived?'Restore':t('session_batch_archive'))" in SESSIONS_JS
+    assert "stack.className='session-swipe-action-stack'" in SESSIONS_JS
+    assert "stack.append(badge,text)" in SESSIONS_JS
+    stack = STYLE_CSS[STYLE_CSS.find(".session-swipe-action-stack{"):STYLE_CSS.find(".session-swipe-badge{")]
+    label = STYLE_CSS[STYLE_CSS.find(".session-swipe-label{"):STYLE_CSS.find(".session-item.dragging")]
+    assert "session-swipe-label" in SESSIONS_JS
+    assert "width:calc(var(--session-swipe-badge-size,34px) + var(--session-swipe-badge-stretch,0px))" in stack
+    assert "align-items:center" in stack
+    assert "min-width:58px" in label
+    assert "width:100%" in label
+    assert "text-align:center" in label
+    assert "color:var(--muted)" in label
+    assert "font-size:10px" in label
+    assert "transform:scale(var(--session-swipe-label-scale,1))" in label
+    assert "transform-origin:top center" in label
+    assert ".session-swipe-affordance-right .session-swipe-action-stack{transform:translateX(6px);}" in STYLE_CSS
+    assert ".session-swipe-affordance-left .session-swipe-action-stack{transform:translateX(-6px);}" in STYLE_CSS
+
+
+def test_session_removal_reflows_surviving_rows_smoothly():
+    assert "let _pendingSessionReflowPositions = null;" in SESSIONS_JS
+    assert "const _optimisticallyRemovedSessionIds = new Set();" in SESSIONS_JS
+    assert "const _sessionSwipeReturnOffsets = new Map();" in SESSIONS_JS
+    capture = _sessions_block("function _captureSessionReflowPositions(){", "function _waitForSessionMotion")
+    helper = _sessions_block("function _playSessionRowsReflowFromPositions", "function _sessionPrefersReducedMotion")
+    assert "positions.set(row.dataset.sid,row.getBoundingClientRect().top);" in capture
+    assert "const delta=oldTop-row.getBoundingClientRect().top;" in helper
+    assert "const movingRows=[];" in helper
+    assert "list.getBoundingClientRect();" in helper
+    assert "row.style.transition='none';" in helper
+    assert "row.classList.add('session-reflowing')" in helper
+    assert "requestAnimationFrame(()=>requestAnimationFrame(()=>{" in helper
+    assert SESSIONS_JS.count("_pendingSessionReflowPositions=reflowPositions;") >= 2
+    assert "const reflowBefore=animateRefresh?flipBefore:_pendingSessionReflowPositions;" in SESSIONS_JS
+    assert "const reflowTimeout=animateRefresh?SESSION_LIST_FLIP_TIMEOUT_MS:SESSION_REFLOW_TIMEOUT_MS;" in SESSIONS_JS
+    assert "_playSessionRowsReflowFromPositions(reflowBefore,reflowTimeout,_sessionPrefersReducedMotion);" in SESSIONS_JS
+    assert "async function _archiveSession(session, archived=true, beforeListRender=null){" in SESSIONS_JS
+    assert "const renderHold=beforeListRender?Promise.resolve().then(beforeListRender):null;" in SESSIONS_JS
+    assert "const cached=(_allSessions||[]).find(s=>s&&s.session_id===session.session_id);" in SESSIONS_JS
+    assert "if(cached) cached.archived=archived;" in SESSIONS_JS
+    archive_start = SESSIONS_JS.find("async function _archiveSession(session, archived=true, beforeListRender=null){")
+    archive_end = SESSIONS_JS.find("function _openSessionActionMenu", archive_start)
+    archive_body = SESSIONS_JS[archive_start:archive_end]
+    toast_idx = archive_body.find("showToast(session.archived?_sessionArchiveToast(response,session):t('session_restored'));")
+    hold_idx = archive_body.find("if(renderHold) await renderHold;")
+    cache_render_idx = archive_body.find("renderSessionListFromCache();")
+    reconcile_idx = archive_body.find("void renderSessionList();")
+    assert 0 <= toast_idx < hold_idx < cache_render_idx < reconcile_idx
+    assert "if(renderHold) await renderHold;" in SESSIONS_JS
+    assert "const serverSessions=_optimisticallyRemovedSessionIds.size" in SESSIONS_JS
+    assert "? (sessData.sessions||[]).filter(s=>s&&!_optimisticallyRemovedSessionIds.has(s.session_id))" in SESSIONS_JS
+    assert ".session-item.session-reflowing{transition:background .15s,color .15s,transform .36s cubic-bezier(.2,.8,.2,1),box-shadow .15s ease;will-change:transform;}" in STYLE_CSS
+    assert "if(_showArchived&&!_sessionPrefersReducedMotion()) _sessionSwipeReturnOffsets.set(session.session_id,'0px');" in SESSIONS_JS
+    assert "const swipeReturnOffset=_sessionSwipeReturnOffsets.get(s.session_id);" in SESSIONS_JS
+    assert "el.classList.add('session-swipe-returning');" in SESSIONS_JS
+    delete_start = SESSIONS_JS.find("async function deleteSession(sid, beforeDelete=null){")
+    delete_end = SESSIONS_JS.find("// ── Project helpers", delete_start)
+    assert delete_start >= 0 and delete_end > delete_start
+    delete_body = SESSIONS_JS[delete_start:delete_end]
+    hold_start = delete_body.find("const beforeDeleteHold=beforeDelete?Promise.resolve().then(beforeDelete):null;")
+    delete_request = delete_body.find("const deleteRequest=api('/api/session/delete'")
+    hold_await = delete_body.find("await beforeDeleteHold;", hold_start)
+    optimistic_set = delete_body.find("_optimisticallyRemovedSessionIds.add(sid);")
+    optimistic_remove = delete_body.find("_optimisticallyRemoveSessionFromList(sid);", optimistic_set)
+    response_await = delete_body.find("const deleteResult=await deleteRequest;")
+    rollback = delete_body.find("_optimisticallyRemovedSessionIds.delete(sid);")
+    final_render = delete_body.find("void renderSessionList().finally(()=>_optimisticallyRemovedSessionIds.delete(sid));")
+    cached_remove = _sessions_block("function _optimisticallyRemoveSessionFromList(sid){", "function _sessionIdFromLocation")
+    assert "_allSessions=_allSessions.filter(s=>!s||s.session_id!==sid);" in cached_remove
+    assert "renderSessionListFromCache();" in cached_remove
+    assert delete_body.find("const reflowPositions=_captureSessionReflowPositions();") < hold_start < delete_request < hold_await < optimistic_set < optimistic_remove < response_await < rollback < final_render
+    assert "}, error=>({error}));" in delete_body
+
+
+def test_ios_touch_events_drive_session_swipes():
+    assert "el.addEventListener('touchstart'" in SESSIONS_JS
+    assert "el.addEventListener('touchmove'" in SESSIONS_JS
+    assert "el.addEventListener('touchcancel',_clearPointerDragState" in SESSIONS_JS
+    assert "el.addEventListener('touchend'" in SESSIONS_JS
+    assert "const _finishSessionGesture=(clientX,clientY,target,pointerType)=>{" in SESSIONS_JS
+    assert "{passive:false}" in SESSIONS_JS
+    assert "if(_updateSessionGesture(touch.clientX,touch.clientY)) e.preventDefault();" in SESSIONS_JS
+    assert SESSIONS_JS.count("if(e.pointerType==='touch') return;") >= 3
+    assert "if(_finishSessionGesture(touch.clientX,touch.clientY,e.target,'touch')) e.stopPropagation();" in SESSIONS_JS
+    assert "window.PointerEvent" not in SESSIONS_JS
+
+
+def test_touch_session_rows_preserve_vertical_scroll():
+    assert ".session-item{padding:8px 8px;" in STYLE_CSS
+    item_rule = STYLE_CSS[STYLE_CSS.find(".session-item{padding:8px 8px;"):STYLE_CSS.find("}", STYLE_CSS.find(".session-item{padding:8px 8px;"))]
+    assert "touch-action:pan-y" in item_rule
+    assert "user-select:none" in item_rule
+    assert "-webkit-user-select:none" in item_rule
+    assert "-webkit-touch-callout:none" in item_rule