Add patterned rename and Move to, and keep settings, selection, and queue speed from resetting.

Co-authored-by: Cursor <cursoragent@cursor.com>

Backlog.md

@@ -294,18 +294,19 @@ Goal: Replace FileRenamer workflows.
 - [x] Counter padding
 - [x] Case conversion
 - [x] Extension handling
-- [ ] Metadata placeholders
+- [x] Metadata placeholders
 
 Potential placeholders:
 
 - `{CreatedDate}`
+- `{TakenDate}`
 - `{ModifiedDate}`
 - `{Counter}`
 - `{Width}`
 - `{Height}`
 - `{Artist}`
 - `{Title}`
-- `{Project}`
+- `{Project}` (Git repo folder, else parent)
 - `{Extension}`
 
 ## Workflow
@@ -318,6 +319,25 @@ Potential placeholders:
 - [x] Add Rename operations to File Operations Queue
 - [x] Store `OldPath -> NewPath`
 - [x] Support Undo for completed rename batches
+- [x] Tags from filename
+- [x] Filename from tags
+- [x] Tag editor (Artist, Title, Album, Track, Year, Genre)
+- [x] Queue tag writes
+- [x] Saved name patterns
+- [x] EXIF Date Taken on photos
+- [x] `{Project}` from Git repo / parent folder
+
+---
+
+# Move to
+
+Patterned move with per-file destination folders (Plex-style movie folders, dated backups, and similar).
+
+- [x] Destination pattern popup
+- [x] `%filename%` `%filename_noext%` `%ext%` `%year%` `%month%` `%parent%` `%source_drive%`
+- [x] Create missing destination folders
+- [x] History / saved patterns
+- [x] Preview and queue through File Operations Queue
 
 ---
 
@@ -440,7 +460,7 @@ Goal: Understand what files and folders represent rather than relying only on ex
 - [ ] MIME/content signature
 - [x] Folder structure
 - [x] Git metadata
-- [ ] Media metadata
+- [x] Media metadata
 - [x] Known application structures (`node_modules`, `bin`, `obj`, `.vs`)
 - [x] File age (old installers flagged in preview)
 - [ ] File relationships

docs/Documentation.md

@@ -44,7 +44,7 @@ Specialized tools still do specialized jobs. 7-Zip compresses. FFmpeg converts a
 | --- | --- |
 | `%LocalAppData%\ExplorerWorkbench\index.db` | Index, queue, profiles |
 | `%LocalAppData%\ExplorerWorkbench\logs\` | Rolling logs |
-| `%LocalAppData%\ExplorerWorkbench\ui-preferences.txt` | Theme, layout, tool paths, organize destinations, favorite folders |
+| `%LocalAppData%\ExplorerWorkbench\ui-preferences.txt` | Theme, layout, tool paths, organize destinations, favorite folders, saved name patterns, Move to history |
 
 ---
 
@@ -226,9 +226,34 @@ Auto-clear when done is a setting. Failed items stay until you dismiss or retry
 
 Workflow: configure → preview → validate → queue.
 
-Rules: search/replace, regex, prefix, suffix, counter (with padding), case, extension. Collisions and illegal Windows names are caught before enqueue. Completed batches can be undone (**Tools → File Operations → Undo last rename batch**).
+Rules: search/replace, regex, prefix, suffix, counter (with padding), case, extension. An optional **name pattern** can replace the current name using placeholders: `{Artist}`, `{Title}`, `{Album}`, `{Track}`, `{Year}`, `{Genre}`, `{CreatedDate}`, `{TakenDate}`, `{ModifiedDate}`, `{Width}`, `{Height}`, `{Name}`, `{Extension}`, `{Parent}`, `{Project}`, `{Counter}`. Dates accept a format (`{TakenDate:yyyyMMdd}`). `{CreatedDate}` uses EXIF Date Taken when that was already read; `{TakenDate}` is the token that reads photo metadata. `{Project}` is the Git repository folder, or the parent folder if the file is not in a repo. **Save pattern** stores a custom pattern in `ui-preferences.txt` (built-in patterns stay in the list: `{Artist} - {Title}`, `{Track:00} - {Title}`, `{TakenDate}_{Name}`, `{CreatedDate}_{Name}`, `{Project}_{Name}`). Collisions and illegal Windows names are caught before enqueue. Completed batches can be undone (**Tools → File Operations → Undo last rename batch**).
 
-Metadata placeholders such as `{CreatedDate}` or `{Width}` are not implemented yet. `{Counter}` and `{Extension}` work.
+**Tags…** (select files first) is the Tag&Rename-style editor. **Filename → tags** fills Artist/Title/… from the current names using the same pattern. **Tags → filename** builds new names from tags. **Queue tags** writes ID3 on audio and EXIF (title, comment, creator, date taken) on photos through the File Operations Queue; **Queue rename** queues the new names. Online-only cloud files are skipped so they are not downloaded.
+
+---
+
+## Move to
+
+**Tools → File Operations → Move to…** or **Move to…** on the item context menu (select items first).
+
+Not a plain “move into this folder”. The destination is a **pattern**. Placeholders expand per file, missing folders are created, then the move is queued.
+
+| Token | Meaning |
+| --- | --- |
+| `%filename%` | Name including extension |
+| `%filename_noext%` | Name without extension |
+| `%ext%` | Extension without the dot |
+| `%year%` / `%month%` | Last-write time (`2024` / `08`) |
+| `%parent%` | Parent folder name |
+| `%source_drive%` | Drive (`D:`) or UNC share (`\\10.0.0.31\media`) |
+
+`{filename_noext}` and the other `{…}` forms work the same.
+
+Plex-style movies: `\\10.0.0.31\media\movies\%filename_noext%` creates `movies\Inception\` and places `Inception.mkv` inside it. If the last segment is `%filename%` or `%ext%`, the pattern is the full destination file path.
+
+Type the path in the text box (or **Browse…**), then click a token to insert it at the caret. **Recent** lists saved patterns; the `\\host\share\…` row is only an example and is rejected if you queue it. **Queue** and **Save** store real patterns in `ui-preferences.txt` (`move-to=`).
+
+If a UNC share or mapped drive is disconnected, Workbench tries to reconnect it (same credentials, no extra prompt). Jobs that still cannot reach the destination wait in the queue; **Retry** re-probes and reconnects. Online-only cloud files are skipped.
 
 ---
 
@@ -387,7 +412,6 @@ Left open on purpose:
 - Scheduled profiles and folder-watcher triggers
 - MIME/EXIF classification
 - Duplicate “backup copy” auto-tagging
-- Rename placeholders from EXIF or dates
 
 ---
 

src/Explorer.App/BatchRenameWindow.xaml

@@ -68,7 +68,14 @@
           <TextBlock Text="Extension" FontWeight="SemiBold" Margin="0,0,0,8"/>
           <CheckBox Content="Change extension" IsChecked="{Binding ChangeExtension}" Margin="0,0,0,8"/>
           <TextBox Text="{Binding NewExtension, UpdateSourceTrigger=PropertyChanged}"
-                   IsEnabled="{Binding ChangeExtension}"/>
+                   IsEnabled="{Binding ChangeExtension}" Margin="0,0,0,16"/>
+
+          <TextBlock Text="Name pattern" FontWeight="SemiBold" Margin="0,0,0,8"/>
+          <ComboBox IsEditable="True" ItemsSource="{Binding PatternChoices}"
+                    Text="{Binding NamePattern, UpdateSourceTrigger=PropertyChanged}" Margin="0,0,0,8"/>
+          <Button Content="Save pattern" Height="28" Command="{Binding SavePatternCommand}" Margin="0,0,0,8"/>
+          <TextBlock TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" FontSize="12"
+                     Text="Optional. Replaces the current name. Placeholders: {Artist} {Title} {Album} {Track} {Year} {Genre} {CreatedDate} {TakenDate} {ModifiedDate} {Width} {Height} {Name} {Extension} {Parent} {Project} {Counter}. Dates accept {TakenDate:yyyyMMdd}."/>
         </StackPanel>
       </ScrollViewer>
       <ListView Grid.Column="2" ItemsSource="{Binding Rows}"

src/Explorer.App/MainWindow.xaml

@@ -34,6 +34,10 @@
       <MenuItem Header="Rename" Click="OnCtxRename"/>
       <MenuItem Header="Batch rename…" Click="OnBatchRename"
                 Visibility="{Binding ShowBatchRename, Converter={StaticResource BoolVis}}"/>
+      <MenuItem Header="Tags…" Click="OnTags"
+                Visibility="{Binding ShowTags, Converter={StaticResource BoolVis}}"/>
+      <MenuItem Header="Move to…" Click="OnMoveTo"
+                Visibility="{Binding ShowMoveTo, Converter={StaticResource BoolVis}}"/>
       <MenuItem Header="Run profile" Tag="RunProfileMenu"
                 IsEnabled="{Binding ShowRunProfile}">
         <MenuItem Header="No profiles yet" IsEnabled="False"/>
@@ -149,6 +153,10 @@
         </MenuItem>
         <MenuItem Header="_File Operations">
           <MenuItem Header="_Batch rename…" Click="OnBatchRename"/>
+          <MenuItem Header="_Tags…" Click="OnTags"
+                    IsEnabled="{Binding ShowTags}"/>
+          <MenuItem Header="_Move to…" Click="OnMoveTo"
+                    IsEnabled="{Binding ShowMoveTo}"/>
           <MenuItem Header="_Undo last rename batch" Command="{Binding UndoRenameBatchCommand}"
                     IsEnabled="{Binding CanUndoRenameBatch}"/>
           <Separator/>

src/Explorer.App/MainWindow.xaml.cs

@@ -22,6 +22,10 @@ public partial class MainWindow : Window
     private bool _dragPending;
     private MouseButton _dragButton;
     private FolderItemViewModel? _dragItem;
+    private ListView? _dragList;
+    private FolderItemViewModel[] _dragSelection = [];
+    private bool _dragFromMultiSelect;
+    private bool _syncingSelection;
     private readonly ListMarquee _marquee = new();
     private bool _suppressItemContextMenu;
     private bool _incomingRightDrag;
@@ -577,12 +581,17 @@ public partial class MainWindow : Window
 
     private void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
     {
-        if (sender is not ListView { IsVisible: true } list)
+        if (_syncingSelection || sender is not ListView { IsVisible: true } list)
         {
             return;
         }
 
         ActivatePaneFromList(list);
+        if (_dragFromMultiSelect && list == _dragList && _dragSelection.Length > 1)
+        {
+            RestoreListSelection(list, _dragSelection);
+        }
+
         if (_clickRenameItem is not null && !list.SelectedItems.Contains(_clickRenameItem))
         {
             CancelClickRename();
@@ -597,6 +606,26 @@ public partial class MainWindow : Window
         Vm.RefreshCloudActions();
     }
 
+    private void RestoreListSelection(ListView list, IReadOnlyList<FolderItemViewModel> items)
+    {
+        _syncingSelection = true;
+        try
+        {
+            list.SelectedItems.Clear();
+            foreach (var item in items)
+            {
+                if (list.Items.Contains(item))
+                {
+                    list.SelectedItems.Add(item);
+                }
+            }
+        }
+        finally
+        {
+            _syncingSelection = false;
+        }
+    }
+
     private void OnPaneFocus(object sender, RoutedEventArgs e)
     {
         if (sender is ListView list)
@@ -620,11 +649,35 @@ public partial class MainWindow : Window
 
     private void OnListMouseDown(object sender, MouseButtonEventArgs e)
     {
+        if (IsInsideInlineRenameBox(e.OriginalSource as DependencyObject))
+        {
+            _dragPending = false;
+            _marquee.Disarm();
+            CancelClickRename();
+            return;
+        }
+
         _suppressItemContextMenu = false;
         _dragStart = e.GetPosition(null);
         _dragPending = true;
         _dragButton = e.ChangedButton;
+        _dragList = sender as ListView;
         _dragItem = HitTestFolderItem(sender as DependencyObject, e.GetPosition((IInputElement)sender));
+        _dragSelection = _dragList is not null
+            ? _dragList.SelectedItems.OfType<FolderItemViewModel>().ToArray()
+            : [];
+        var additive = (Keyboard.Modifiers & (ModifierKeys.Control | ModifierKeys.Shift)) != 0;
+        _dragFromMultiSelect = !additive
+            && _dragItem is not null
+            && _dragSelection.Length > 1
+            && Array.IndexOf(_dragSelection, _dragItem) >= 0;
+        if (_dragFromMultiSelect && e.ChangedButton == MouseButton.Left && _dragList is not null)
+        {
+            e.Handled = true;
+            _dragList.Focus();
+            _dragList.CaptureMouse();
+        }
+
         if (sender is ListView list
             && _dragItem is null
             && ListMarquee.IsBackground(e.OriginalSource as DependencyObject))
@@ -800,6 +853,13 @@ public partial class MainWindow : Window
             return;
         }
 
+        if (IsInsideInlineRenameBox(e.OriginalSource as DependencyObject)
+            || _dragItem is { IsRenaming: true })
+        {
+            _dragPending = false;
+            return;
+        }
+
         var pos = e.GetPosition(null);
         if (Math.Abs(pos.X - _dragStart.X) < SystemParameters.MinimumHorizontalDragDistance
             && Math.Abs(pos.Y - _dragStart.Y) < SystemParameters.MinimumVerticalDragDistance)
@@ -809,18 +869,13 @@ public partial class MainWindow : Window
 
         _dragPending = false;
         CancelClickRename();
-        var selected = Vm.ActivePane.SelectedItems.Select(i => i.FullPath).ToList();
+        if (_dragList is { IsMouseCaptured: true })
-        IReadOnlyList<string> paths;
-        if (_dragItem is not null && (selected.Count == 0
-            || selected.TrueForAll(p => !p.Equals(_dragItem.FullPath, StringComparison.OrdinalIgnoreCase))))
         {
-            paths = [_dragItem.FullPath];
+            _dragList.ReleaseMouseCapture();
-        }
-        else
-        {
-            paths = selected;
         }
 
+        var paths = DragPaths();
+        _dragFromMultiSelect = false;
         if (paths.Count == 0)
         {
             return;
@@ -878,11 +933,42 @@ public partial class MainWindow : Window
         }
 
         base.OnPreviewMouseUp(e);
-        if (e.ChangedButton == _dragButton)
+        if (e.ChangedButton != _dragButton)
         {
-            _dragPending = false;
+            return;
-            _marquee.Disarm();
         }
+
+        if (_dragFromMultiSelect && _dragPending && _dragList is not null && _dragItem is not null)
+        {
+            _dragFromMultiSelect = false;
+            _dragList.SelectedItems.Clear();
+            _dragList.SelectedItem = _dragItem;
+        }
+
+        _dragPending = false;
+        _dragFromMultiSelect = false;
+        _marquee.Disarm();
+        if (_dragList is { IsMouseCaptured: true })
+        {
+            _dragList.ReleaseMouseCapture();
+        }
+    }
+
+    private IReadOnlyList<string> DragPaths()
+    {
+        if (_dragFromMultiSelect && _dragSelection.Length > 0)
+        {
+            return _dragSelection.Select(i => i.FullPath).ToList();
+        }
+
+        var selected = Vm.ActivePane.SelectedItems.Select(i => i.FullPath).ToList();
+        if (_dragItem is not null && (selected.Count == 0
+            || selected.TrueForAll(p => !p.Equals(_dragItem.FullPath, StringComparison.OrdinalIgnoreCase))))
+        {
+            return [_dragItem.FullPath];
+        }
+
+        return selected;
     }
 
     private bool CompleteMarqueeMouseUp(MouseButtonEventArgs e)
@@ -1293,6 +1379,36 @@ public partial class MainWindow : Window
         }
     }
 
+    private void OnTags(object sender, RoutedEventArgs e)
+    {
+        var vm = Vm.CreateTagRenameViewModel();
+        if (vm is null)
+        {
+            return;
+        }
+
+        var dlg = new TagRenameWindow(vm) { Owner = this };
+        if (dlg.ShowDialog() == true)
+        {
+            Vm.Footer = "Tag or rename work queued.";
+        }
+    }
+
+    private void OnMoveTo(object sender, RoutedEventArgs e)
+    {
+        var vm = Vm.CreateMoveToViewModel();
+        if (vm is null)
+        {
+            return;
+        }
+
+        var dlg = new MoveToWindow(vm) { Owner = this };
+        if (dlg.ShowDialog() == true)
+        {
+            Vm.Footer = "Move queued.";
+        }
+    }
+
     private async void OnExtractHere(object sender, RoutedEventArgs e)
         => await Vm.ExtractSelectedAsync(null).ConfigureAwait(true);
 

src/Explorer.App/MoveToWindow.xaml

@@ -0,0 +1,66 @@
+<Window x:Class="Explorer.App.MoveToWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Move to"
+        Icon="pack://application:,,,/Assets/explorer-workbench.ico"
+        Height="560" Width="820"
+        MinHeight="420" MinWidth="640"
+        WindowStartupLocation="CenterOwner"
+        Background="{DynamicResource Bg}" Foreground="{DynamicResource Fg}">
+  <DockPanel Margin="16">
+    <DockPanel DockPanel.Dock="Bottom" Margin="0,12,0,0">
+      <Button DockPanel.Dock="Right" Content="Cancel" MinWidth="88" Height="32" IsCancel="True" Margin="8,0,0,0"/>
+      <Button DockPanel.Dock="Right" Content="Queue" MinWidth="88" Height="32" IsDefault="True"
+              Command="{Binding QueueCommand}" IsEnabled="{Binding CanQueue}"/>
+      <TextBlock Text="{Binding Status}" VerticalAlignment="Center" Foreground="{DynamicResource FgMuted}" TextWrapping="Wrap"/>
+    </DockPanel>
+    <StackPanel DockPanel.Dock="Top" Margin="0,0,0,12">
+      <TextBlock Text="Destination pattern" FontWeight="SemiBold" Margin="0,0,0,8"/>
+      <Grid Margin="0,0,0,8">
+        <Grid.ColumnDefinitions>
+          <ColumnDefinition Width="*"/>
+          <ColumnDefinition Width="Auto"/>
+          <ColumnDefinition Width="Auto"/>
+        </Grid.ColumnDefinitions>
+        <TextBox x:Name="PatternBox" MinHeight="32" VerticalContentAlignment="Center" Padding="8,4"
+                 Text="{Binding Pattern, UpdateSourceTrigger=PropertyChanged}"/>
+        <Button Grid.Column="1" Content="Browse…" MinWidth="88" Height="32" Click="OnBrowse" Margin="8,0,0,0"/>
+        <Button Grid.Column="2" Content="Save" MinWidth="72" Height="32" Command="{Binding SavePatternCommand}" Margin="8,0,0,0"/>
+      </Grid>
+      <Grid Margin="0,0,0,8">
+        <Grid.ColumnDefinitions>
+          <ColumnDefinition Width="Auto"/>
+          <ColumnDefinition Width="*"/>
+        </Grid.ColumnDefinitions>
+        <TextBlock Text="Recent" VerticalAlignment="Center" Margin="0,0,8,0" Foreground="{DynamicResource FgMuted}"/>
+        <ComboBox Grid.Column="1" MinHeight="28" ItemsSource="{Binding PatternChoices}"
+                  SelectedItem="{Binding SelectedChoice}" SelectedIndex="-1"/>
+      </Grid>
+      <ItemsControl ItemsSource="{Binding Tokens}" Margin="0,0,0,8">
+        <ItemsControl.ItemsPanel>
+          <ItemsPanelTemplate>
+            <WrapPanel/>
+          </ItemsPanelTemplate>
+        </ItemsControl.ItemsPanel>
+        <ItemsControl.ItemTemplate>
+          <DataTemplate>
+            <Button Content="{Binding}" MinWidth="0" Height="26" Padding="8,0" Margin="0,0,8,8"
+                    Click="OnInsertToken" Tag="{Binding}"/>
+          </DataTemplate>
+        </ItemsControl.ItemTemplate>
+      </ItemsControl>
+      <TextBlock TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" FontSize="12"
+                 Text="Type a full UNC or drive path, then click a token to insert it at the caret. Example: \\10.0.0.31\media\movies\%filename_noext% creates a folder named after the file and places the file inside it. %year% / %month% use last-write time. Online-only cloud files are skipped."/>
+    </StackPanel>
+    <ListView ItemsSource="{Binding Rows}"
+              Background="{DynamicResource Panel}" Foreground="{DynamicResource Fg}">
+      <ListView.View>
+        <GridView>
+          <GridViewColumn Header="Action" Width="70" DisplayMemberBinding="{Binding Action}"/>
+          <GridViewColumn Header="Source" Width="200" DisplayMemberBinding="{Binding Detail}"/>
+          <GridViewColumn Header="Destination" Width="460" DisplayMemberBinding="{Binding Path}"/>
+        </GridView>
+      </ListView.View>
+    </ListView>
+  </DockPanel>
+</Window>

src/Explorer.App/MoveToWindow.xaml.cs

@@ -0,0 +1,69 @@
+using System.Windows;
+using System.Windows.Controls;
+using Explorer.Presentation.ViewModels;
+
+namespace Explorer.App;
+
+public partial class MoveToWindow : Window
+{
+    public MoveToWindow(MoveToViewModel vm)
+    {
+        InitializeComponent();
+        DataContext = vm;
+        vm.CloseRequested += (_, _) =>
+        {
+            try
+            {
+                DialogResult = true;
+            }
+            catch (InvalidOperationException)
+            {
+                // not shown as a dialog
+            }
+
+            Close();
+        };
+        Loaded += (_, _) =>
+        {
+            PatternBox.CaretIndex = PatternBox.Text?.Length ?? 0;
+            PatternBox.Focus();
+        };
+    }
+
+    private void OnBrowse(object sender, RoutedEventArgs e)
+    {
+        var picker = new Microsoft.Win32.OpenFolderDialog
+        {
+            Title = "Move to",
+            Multiselect = false
+        };
+        if (picker.ShowDialog(this) != true || string.IsNullOrWhiteSpace(picker.FolderName))
+        {
+            return;
+        }
+
+        if (DataContext is MoveToViewModel vm)
+        {
+            vm.Pattern = picker.FolderName;
+        }
+
+        PatternBox.CaretIndex = PatternBox.Text?.Length ?? 0;
+        PatternBox.Focus();
+    }
+
+    private void OnInsertToken(object sender, RoutedEventArgs e)
+    {
+        if (sender is not Button { Tag: string token } || DataContext is not MoveToViewModel vm)
+        {
+            return;
+        }
+
+        var text = PatternBox.Text ?? vm.Pattern ?? "";
+        var caret = Math.Clamp(PatternBox.CaretIndex, 0, text.Length);
+        var slash = caret > 0 && text[caret - 1] != '\\' ? "\\" : "";
+        var insert = slash + token;
+        vm.Pattern = text.Insert(caret, insert);
+        PatternBox.Focus();
+        PatternBox.CaretIndex = caret + insert.Length;
+    }
+}

src/Explorer.App/Settings/Pages/AdvancedSettingsPage.xaml

@@ -1,7 +1,6 @@
 <UserControl x:Class="Explorer.App.Settings.Pages.AdvancedSettingsPage"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-             DataContext="{Binding Draft, RelativeSource={RelativeSource AncestorType=Window}}">
   <StackPanel>
     <TextBlock Text="Advanced" Style="{StaticResource SettingsHeading}"
                AutomationProperties.HeadingLevel="Level1"/>

src/Explorer.App/Settings/Pages/AdvancedSettingsPage.xaml.cs

@@ -10,7 +10,7 @@ public partial class AdvancedSettingsPage : UserControl
 
     private void OnBrowseGit(object sender, RoutedEventArgs e)
     {
-        if (DataContext is SettingsDraft draft
+        if (SettingsPageContext.DraftOf(this) is { } draft
             && SettingsPathBrowse.TryPick(
                 Window.GetWindow(this),
                 "Git executable",

src/Explorer.App/Settings/Pages/AppearanceSettingsPage.xaml

@@ -1,7 +1,6 @@
 <UserControl x:Class="Explorer.App.Settings.Pages.AppearanceSettingsPage"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-             DataContext="{Binding Draft, RelativeSource={RelativeSource AncestorType=Window}}">
   <StackPanel>
     <TextBlock Text="Appearance" Style="{StaticResource SettingsHeading}"
                AutomationProperties.HeadingLevel="Level1"/>

src/Explorer.App/Settings/Pages/FileOperationsSettingsPage.xaml

@@ -1,7 +1,6 @@
 <UserControl x:Class="Explorer.App.Settings.Pages.FileOperationsSettingsPage"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-             DataContext="{Binding Draft, RelativeSource={RelativeSource AncestorType=Window}}">
   <StackPanel>
     <TextBlock Text="File Operations" Style="{StaticResource SettingsHeading}"
                AutomationProperties.HeadingLevel="Level1"/>

src/Explorer.App/Settings/Pages/FileOperationsSettingsPage.xaml.cs

@@ -10,7 +10,7 @@ public partial class FileOperationsSettingsPage : UserControl
 
     private void OnBrowseSevenZip(object sender, RoutedEventArgs e)
     {
-        if (DataContext is SettingsDraft draft
+        if (SettingsPageContext.DraftOf(this) is { } draft
             && SettingsPathBrowse.TryPick(
                 Window.GetWindow(this),
                 "7-Zip executable",
@@ -24,7 +24,7 @@ public partial class FileOperationsSettingsPage : UserControl
 
     private void OnBrowseFfmpeg(object sender, RoutedEventArgs e)
     {
-        if (DataContext is SettingsDraft draft
+        if (SettingsPageContext.DraftOf(this) is { } draft
             && SettingsPathBrowse.TryPick(
                 Window.GetWindow(this),
                 "FFmpeg executable",

src/Explorer.App/Settings/Pages/GeneralSettingsPage.xaml

@@ -1,7 +1,6 @@
 <UserControl x:Class="Explorer.App.Settings.Pages.GeneralSettingsPage"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-             DataContext="{Binding Draft, RelativeSource={RelativeSource AncestorType=Window}}">
   <StackPanel>
     <TextBlock Text="General" Style="{StaticResource SettingsHeading}"
                AutomationProperties.HeadingLevel="Level1"/>

src/Explorer.App/Settings/Pages/IndexingSettingsPage.xaml

@@ -1,7 +1,7 @@
 <UserControl x:Class="Explorer.App.Settings.Pages.IndexingSettingsPage"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             DataContext="{Binding Draft, RelativeSource={RelativeSource AncestorType=Window}}">
+             xmlns:sys="clr-namespace:System;assembly=System.Runtime">
   <StackPanel>
     <TextBlock Text="Indexing" Style="{StaticResource SettingsHeading}"
                AutomationProperties.HeadingLevel="Level1"/>
@@ -31,16 +31,23 @@
                Text="The host watches Windows idle time even if this window is closed. Conservative defaults wait 10 minutes and prefer AC power."/>
     <TextBlock Text="Idle for" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,8"
                IsEnabled="{Binding BackgroundMaintenanceWhenIdle}"/>
-    <DockPanel LastChildFill="False" Margin="0,0,0,14">
+    <StackPanel Orientation="Horizontal" Margin="0,0,0,14">
-      <ComboBox Width="80" HorizontalAlignment="Left"
+      <ComboBox MinWidth="88" Width="88"
-                ItemsSource="{Binding IdleThresholdChoices}"
+                SelectedItem="{Binding IdleMaintenanceMinutes, Mode=TwoWay}"
-                SelectedItem="{Binding IdleMaintenanceMinutes}"
                 IsEnabled="{Binding BackgroundMaintenanceWhenIdle}"
-                AutomationProperties.Name="Idle threshold in minutes"/>
+                AutomationProperties.Name="Idle threshold in minutes">
+        <ComboBox.ItemsSource>
+          <x:Array Type="sys:Int32">
+            <sys:Int32>5</sys:Int32>
+            <sys:Int32>10</sys:Int32>
+            <sys:Int32>30</sys:Int32>
+          </x:Array>
+        </ComboBox.ItemsSource>
+      </ComboBox>
       <TextBlock Text="minutes" VerticalAlignment="Center" Margin="10,0,0,0"
                  Foreground="{DynamicResource FgMuted}"
                  IsEnabled="{Binding BackgroundMaintenanceWhenIdle}"/>
-    </DockPanel>
+    </StackPanel>
     <CheckBox Margin="0,0,0,6"
               Content="Only run expensive maintenance on AC power"
               IsChecked="{Binding IdleMaintenanceAcOnly}"

src/Explorer.App/Settings/Pages/NavigationSettingsPage.xaml

@@ -1,7 +1,6 @@
 <UserControl x:Class="Explorer.App.Settings.Pages.NavigationSettingsPage"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-             DataContext="{Binding Draft, RelativeSource={RelativeSource AncestorType=Window}}">
   <StackPanel>
     <TextBlock Text="Navigation" Style="{StaticResource SettingsHeading}"
                AutomationProperties.HeadingLevel="Level1"/>

src/Explorer.App/Settings/SettingsPageContext.cs

@@ -0,0 +1,11 @@
+using System.Windows;
+
+namespace Explorer.App.Settings;
+
+internal static class SettingsPageContext
+{
+    public static SettingsDraft? DraftOf(FrameworkElement page)
+        => page.DataContext as SettingsDraft
+           ?? (page.DataContext as SettingsShell)?.Draft
+           ?? (Window.GetWindow(page) as SettingsWindow)?.Draft;
+}

src/Explorer.App/SettingsWindow.xaml

@@ -63,9 +63,7 @@
               BorderThickness="1" Padding="16">
         <ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled"
                       KeyboardNavigation.TabIndex="1">
-          <ContentControl Content="{Binding SelectedCategory.Page}"
+          <Grid x:Name="PageHost" HorizontalAlignment="Stretch" VerticalAlignment="Top"/>
-                          HorizontalContentAlignment="Stretch"
-                          VerticalContentAlignment="Top"/>
         </ScrollViewer>
       </Border>
     </Grid>

src/Explorer.App/SettingsWindow.xaml.cs

@@ -12,16 +12,46 @@ public partial class SettingsWindow : Window
     private readonly SettingsDraft _draft;
     private readonly string _originalTheme;
 
+    public SettingsDraft Draft => _draft;
+
     public SettingsWindow(MainViewModel vm)
     {
-        InitializeComponent();
         _vm = vm;
         var prefs = vm.CurrentPreferences();
         _originalTheme = prefs.Theme;
         _draft = SettingsDraft.From(prefs);
         _draft.PropertyChanged += OnDraftChanged;
-        DataContext = new SettingsShell(_draft, SettingsCatalog.Create());
+        var shell = new SettingsShell(_draft, SettingsCatalog.Create());
-        Closed += (_, _) => _draft.PropertyChanged -= OnDraftChanged;
+        DataContext = shell;
+        InitializeComponent();
+        shell.PropertyChanged += OnShellChanged;
+        ShowSelectedPage();
+        Closed += (_, _) =>
+        {
+            _draft.PropertyChanged -= OnDraftChanged;
+            shell.PropertyChanged -= OnShellChanged;
+        };
+    }
+
+    private void OnShellChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (e.PropertyName is nameof(SettingsShell.SelectedCategory) or null)
+        {
+            ShowSelectedPage();
+        }
+    }
+
+    private void ShowSelectedPage()
+    {
+        PageHost.Children.Clear();
+        if (DataContext is not SettingsShell shell)
+        {
+            return;
+        }
+
+        var page = shell.SelectedCategory.Page;
+        PageHost.Children.Add(page);
+        page.DataContext = _draft;
     }
 
     private void OnDraftChanged(object? sender, PropertyChangedEventArgs e)

src/Explorer.App/TagRenameWindow.xaml

@@ -0,0 +1,50 @@
+<Window x:Class="Explorer.App.TagRenameWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Tags"
+        Icon="pack://application:,,,/Assets/explorer-workbench.ico"
+        Height="640" Width="980"
+        MinHeight="480" MinWidth="760"
+        WindowStartupLocation="CenterOwner"
+        Background="{DynamicResource Bg}" Foreground="{DynamicResource Fg}">
+  <DockPanel Margin="16">
+    <DockPanel DockPanel.Dock="Bottom" Margin="0,12,0,0">
+      <Button DockPanel.Dock="Right" Content="Cancel" MinWidth="88" Height="32" IsCancel="True" Margin="8,0,0,0"/>
+      <Button DockPanel.Dock="Right" Content="Queue rename" MinWidth="120" Height="32"
+              Command="{Binding QueueRenameCommand}" IsEnabled="{Binding CanQueueRename}" Margin="8,0,0,0"/>
+      <Button DockPanel.Dock="Right" Content="Queue tags" MinWidth="110" Height="32" IsDefault="True"
+              Command="{Binding QueueTagsCommand}" IsEnabled="{Binding CanQueueTags}"/>
+      <TextBlock Text="{Binding Status}" VerticalAlignment="Center" Foreground="{DynamicResource FgMuted}" TextWrapping="Wrap"/>
+    </DockPanel>
+    <DockPanel DockPanel.Dock="Top" Margin="0,0,0,12">
+      <TextBlock DockPanel.Dock="Top" Text="Filename pattern" FontWeight="SemiBold" Margin="0,0,0,8"/>
+      <StackPanel DockPanel.Dock="Right" Orientation="Horizontal" Margin="8,0,0,0">
+        <Button Content="Save pattern" MinWidth="110" Height="28" Command="{Binding SavePatternCommand}" Margin="0,0,8,0"/>
+        <Button Content="Filename → tags" MinWidth="130" Height="28" Command="{Binding ApplyFilenameToTagsCommand}" Margin="0,0,8,0"/>
+        <Button Content="Tags → filename" MinWidth="130" Height="28" Command="{Binding ApplyTagsToNamesCommand}"/>
+      </StackPanel>
+      <ComboBox IsEditable="True" ItemsSource="{Binding PatternChoices}"
+                Text="{Binding Pattern, UpdateSourceTrigger=PropertyChanged}"/>
+    </DockPanel>
+    <TextBlock DockPanel.Dock="Top" Margin="0,0,0,12" TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" FontSize="12"
+               Text="Edit tags, then Queue tags to write them into the files (ID3 on audio, EXIF on photos). Tags → filename fills New name from the pattern; Queue rename applies those names. Online-only cloud files are skipped. {Project} is the Git repo or parent folder."/>
+    <DataGrid ItemsSource="{Binding Rows}" AutoGenerateColumns="False" CanUserAddRows="False" CanUserDeleteRows="False"
+              HeadersVisibility="Column" GridLinesVisibility="Horizontal"
+              Background="{DynamicResource Panel}" Foreground="{DynamicResource Fg}"
+              BorderBrush="{DynamicResource Stroke}" RowBackground="{DynamicResource Panel}"
+              AlternatingRowBackground="{DynamicResource Panel}"
+              HorizontalGridLinesBrush="{DynamicResource Stroke}">
+      <DataGrid.Columns>
+        <DataGridTextColumn Header="File" Binding="{Binding FileName}" Width="180" IsReadOnly="True"/>
+        <DataGridTextColumn Header="Artist" Binding="{Binding Artist, UpdateSourceTrigger=PropertyChanged}" Width="120"/>
+        <DataGridTextColumn Header="Title" Binding="{Binding Title, UpdateSourceTrigger=PropertyChanged}" Width="160"/>
+        <DataGridTextColumn Header="Album" Binding="{Binding Album, UpdateSourceTrigger=PropertyChanged}" Width="140"/>
+        <DataGridTextColumn Header="Track" Binding="{Binding Track, UpdateSourceTrigger=PropertyChanged}" Width="60"/>
+        <DataGridTextColumn Header="Year" Binding="{Binding Year, UpdateSourceTrigger=PropertyChanged}" Width="60"/>
+        <DataGridTextColumn Header="Genre" Binding="{Binding Genre, UpdateSourceTrigger=PropertyChanged}" Width="100"/>
+        <DataGridTextColumn Header="New name" Binding="{Binding ProposedName}" Width="180" IsReadOnly="True"/>
+        <DataGridTextColumn Header="Status" Binding="{Binding Status}" Width="120" IsReadOnly="True"/>
+      </DataGrid.Columns>
+    </DataGrid>
+  </DockPanel>
+</Window>

src/Explorer.App/TagRenameWindow.xaml.cs

@@ -0,0 +1,26 @@
+using System.Windows;
+using Explorer.Presentation.ViewModels;
+
+namespace Explorer.App;
+
+public partial class TagRenameWindow : Window
+{
+    public TagRenameWindow(TagRenameViewModel vm)
+    {
+        InitializeComponent();
+        DataContext = vm;
+        vm.CloseRequested += (_, _) =>
+        {
+            try
+            {
+                DialogResult = true;
+            }
+            catch (InvalidOperationException)
+            {
+                // not shown as a dialog
+            }
+
+            Close();
+        };
+    }
+}

src/Explorer.Application/DestinationPattern.cs

@@ -0,0 +1,193 @@
+using System.Globalization;
+using System.Text.RegularExpressions;
+using Explorer.Domain;
+
+namespace Explorer.Application;
+
+public sealed record MoveToFields(
+    string FileName,
+    string Stem,
+    string Extension,
+    string Parent,
+    string SourceDrive,
+    DateTimeOffset? Modified,
+    DateTimeOffset? Created);
+
+public static class DestinationPattern
+{
+    private static readonly Regex TokenRx = new(
+        @"%([A-Za-z_]+)%|\{([A-Za-z_]+)\}",
+        RegexOptions.CultureInvariant | RegexOptions.Compiled);
+
+    public static bool TryResolve(
+        string pattern,
+        RenameSubject subject,
+        out string destination,
+        out string? error)
+    {
+        destination = "";
+        var fields = FromSubject(subject);
+        if (!TryExpand(pattern, fields, out var expanded, out error))
+        {
+            return false;
+        }
+
+        destination = subject.IsDirectory || EndsWithFileNameToken(pattern)
+            ? expanded
+            : PathRules.Combine(expanded.TrimEnd('\\'), fields.FileName);
+
+        if (!IsRooted(destination))
+        {
+            error = "Enter a full destination path (drive or UNC).";
+            return false;
+        }
+
+        foreach (var segment in NameSegments(destination))
+        {
+            if (!WindowsFileNames.IsValid(segment, out error))
+            {
+                return false;
+            }
+        }
+
+        error = null;
+        return true;
+    }
+
+    public static bool TryExpand(string pattern, MoveToFields fields, out string expanded, out string? error)
+    {
+        expanded = "";
+        if (string.IsNullOrWhiteSpace(pattern))
+        {
+            error = "Enter a destination path. Use placeholders such as %filename_noext%.";
+            return false;
+        }
+
+        Match leftover = Match.Empty;
+        expanded = PathRules.NormalizeDirectorySeparators(TokenRx.Replace(pattern.Trim(), match =>
+        {
+            var name = match.Groups[1].Success ? match.Groups[1].Value : match.Groups[2].Value;
+            var value = Resolve(name, fields);
+            if (value is null)
+            {
+                leftover = match;
+                return match.Value;
+            }
+
+            return value;
+        }));
+
+        if (leftover.Success)
+        {
+            error = "Unknown placeholder " + leftover.Value + ".";
+            return false;
+        }
+
+        if (string.IsNullOrWhiteSpace(expanded))
+        {
+            error = "The destination path is empty.";
+            return false;
+        }
+
+        error = null;
+        return true;
+    }
+
+    public static MoveToFields FromSubject(RenameSubject subject)
+    {
+        var tags = FilenamePattern.FromFile(subject.FullPath, subject.IsDirectory);
+        var (stem, extension) = WindowsFileNames.Split(subject.Name);
+        return new MoveToFields(
+            subject.Name,
+            subject.IsDirectory ? subject.Name : stem,
+            subject.IsDirectory ? "" : extension,
+            tags.Parent ?? "",
+            PathRules.VolumeRoot(subject.FullPath),
+            tags.Modified,
+            tags.Created);
+    }
+
+    public static bool EndsWithFileNameToken(string pattern)
+    {
+        var last = LastSegment(pattern);
+        foreach (Match match in TokenRx.Matches(last))
+        {
+            switch (TokenName(match))
+            {
+                case "filename":
+                case "ext":
+                case "extension":
+                    return true;
+            }
+        }
+
+        return false;
+    }
+
+    private static string TokenName(Match match)
+        => (match.Groups[1].Success ? match.Groups[1].Value : match.Groups[2].Value).ToLowerInvariant();
+
+    private static string LastSegment(string path)
+    {
+        var normalized = path.Replace('/', '\\').TrimEnd('\\');
+        var idx = normalized.LastIndexOf('\\');
+        return idx >= 0 ? normalized[(idx + 1)..] : normalized;
+    }
+
+    private static string? Resolve(string name, MoveToFields fields)
+        => name.ToLowerInvariant() switch
+        {
+            "filename" => Sanitize(fields.FileName),
+            "filename_noext" or "stem" => Sanitize(fields.Stem),
+            "ext" or "extension" => Sanitize(fields.Extension),
+            "parent" => Sanitize(fields.Parent),
+            "source_drive" or "drive" => fields.SourceDrive,
+            "year" => DatePart(fields, "yyyy"),
+            "month" => DatePart(fields, "MM"),
+            _ => null
+        };
+
+    private static string Sanitize(string? value)
+        => WindowsFileNames.SanitizeForFileName(value ?? "");
+
+    private static string DatePart(MoveToFields fields, string format)
+    {
+        var stamp = (fields.Modified ?? fields.Created ?? DateTimeOffset.Now).ToLocalTime();
+        return stamp.ToString(format, CultureInfo.InvariantCulture);
+    }
+
+    private static bool IsRooted(string path)
+    {
+        var p = PathRules.FromExtended(path);
+        return PathRules.IsUnc(p) || (p.Length >= 2 && p[1] == ':');
+    }
+
+    internal static IEnumerable<string> NameSegments(string path)
+    {
+        var p = PathRules.FromExtended(path).TrimEnd('\\');
+        string rest;
+        if (PathRules.IsUnc(p))
+        {
+            var root = PathRules.CanonicalUncRoot(p);
+            if (p.Length <= root.Length)
+            {
+                yield break;
+            }
+
+            rest = p[(root.Length + 1)..];
+        }
+        else if (p.Length >= 2 && p[1] == ':')
+        {
+            rest = p.Length > 3 ? p[3..].TrimStart('\\') : "";
+        }
+        else
+        {
+            rest = p;
+        }
+
+        foreach (var part in rest.Split('\\', StringSplitOptions.RemoveEmptyEntries))
+        {
+            yield return part;
+        }
+    }
+}

src/Explorer.Application/DestinationPatterns.cs

@@ -0,0 +1,88 @@
+namespace Explorer.Application;
+
+public static class DestinationPatterns
+{
+    public const int MaxCount = 24;
+    public const int MaxLength = 500;
+
+    public static IReadOnlyList<string> BuiltIn { get; } =
+    [
+        @"\\host\share\movies\%filename_noext%",
+        @"%source_drive%\sorted\%year%\%month%"
+    ];
+
+    public static IReadOnlyList<string> Combine(IEnumerable<string>? saved)
+    {
+        var result = new List<string>();
+        var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        foreach (var pattern in (saved ?? []).Concat(BuiltIn))
+        {
+            if (!TryNormalize(pattern, out var text) || !seen.Add(text))
+            {
+                continue;
+            }
+
+            result.Add(text);
+            if (result.Count >= MaxCount)
+            {
+                break;
+            }
+        }
+
+        return result;
+    }
+
+    public static IReadOnlyList<string> Add(IEnumerable<string>? saved, string pattern)
+    {
+        if (!TryNormalize(pattern, out var text))
+        {
+            return Normalize(saved);
+        }
+
+        var next = new List<string> { text };
+        var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { text };
+        foreach (var existing in Normalize(saved))
+        {
+            if (seen.Add(existing))
+            {
+                next.Add(existing);
+            }
+
+            if (next.Count >= MaxCount)
+            {
+                break;
+            }
+        }
+
+        return next;
+    }
+
+    public static IReadOnlyList<string> Normalize(IEnumerable<string>? saved)
+    {
+        var result = new List<string>();
+        var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        foreach (var raw in saved ?? [])
+        {
+            if (!TryNormalize(raw, out var text)
+                || BuiltIn.Contains(text, StringComparer.OrdinalIgnoreCase)
+                || !seen.Add(text))
+            {
+                continue;
+            }
+
+            result.Add(text);
+            if (result.Count >= MaxCount)
+            {
+                break;
+            }
+        }
+
+        return result;
+    }
+
+    public static bool TryNormalize(string? raw, out string pattern)
+    {
+        pattern = (raw ?? "").Trim();
+        return pattern.Length is > 0 && pattern.Length <= MaxLength;
+    }
+}

src/Explorer.Application/FilenamePattern.cs

@@ -0,0 +1,314 @@
+using System.Globalization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Explorer.Domain;
+
+namespace Explorer.Application;
+
+public static class FilenamePattern
+{
+    public const string DefaultAudioPattern = "{Artist} - {Title}";
+    public static readonly TimeSpan RegexTimeout = TimeSpan.FromMilliseconds(250);
+    private static readonly Regex TokenRx = new(
+        @"\{([A-Za-z]+)(?::([^}]+))?\}",
+        RegexOptions.CultureInvariant | RegexOptions.Compiled);
+
+    public static string Expand(string pattern, MediaTagFields tags, string counter = "")
+    {
+        if (string.IsNullOrEmpty(pattern))
+        {
+            return pattern;
+        }
+
+        return TokenRx.Replace(pattern, match =>
+        {
+            var name = match.Groups[1].Value;
+            var format = match.Groups[2].Success ? match.Groups[2].Value : null;
+            return Resolve(name, format, tags, counter) ?? match.Value;
+        });
+    }
+
+    public static bool UsesMediaContent(string? text)
+    {
+        if (string.IsNullOrEmpty(text))
+        {
+            return false;
+        }
+
+        foreach (Match match in TokenRx.Matches(text))
+        {
+            switch (match.Groups[1].Value.ToLowerInvariant())
+            {
+                case "artist":
+                case "title":
+                case "album":
+                case "track":
+                case "trackcount":
+                case "year":
+                case "genre":
+                case "comment":
+                case "width":
+                case "height":
+                case "takendate":
+                case "datetaken":
+                    return true;
+            }
+        }
+
+        return false;
+    }
+
+    public static bool TryParse(string pattern, string stem, out MediaTagFields tags, out string? error)
+    {
+        tags = new MediaTagFields();
+        error = null;
+        if (string.IsNullOrWhiteSpace(pattern))
+        {
+            error = "Enter a filename pattern such as {Artist} - {Title}.";
+            return false;
+        }
+
+        var regex = new StringBuilder("^");
+        var names = new List<string>();
+        var last = 0;
+        foreach (Match match in TokenRx.Matches(pattern))
+        {
+            regex.Append(Regex.Escape(pattern[last..match.Index]));
+            var name = match.Groups[1].Value;
+            names.Add(name);
+            regex.Append(Capture(name, names.Count == CountTokens(pattern)));
+            last = match.Index + match.Length;
+        }
+
+        regex.Append(Regex.Escape(pattern[last..]));
+        regex.Append('$');
+
+        Match parsed;
+        try
+        {
+            parsed = Regex.Match(stem, regex.ToString(), RegexOptions.CultureInvariant, RegexTimeout);
+        }
+        catch (RegexMatchTimeoutException)
+        {
+            error = "The filename pattern took too long.";
+            return false;
+        }
+        catch (ArgumentException ex)
+        {
+            error = "Invalid filename pattern: " + ex.Message;
+            return false;
+        }
+
+        if (!parsed.Success)
+        {
+            error = "The name does not match the pattern.";
+            return false;
+        }
+
+        var artist = Value(parsed, "Artist");
+        var title = Value(parsed, "Title");
+        var album = Value(parsed, "Album");
+        var genre = Value(parsed, "Genre");
+        var comment = Value(parsed, "Comment");
+        int? track = ParseInt(Value(parsed, "Track"));
+        int? year = ParseInt(Value(parsed, "Year"));
+        var taken = ParseDate(
+            Value(parsed, "TakenDate") ?? Value(parsed, "DateTaken") ?? Value(parsed, "CreatedDate") ?? Value(parsed, "Date"),
+            DateFormat(pattern));
+        tags = new MediaTagFields
+        {
+            Artist = artist,
+            Title = title,
+            Album = album,
+            Genre = genre,
+            Comment = comment,
+            Track = track,
+            Year = year ?? taken?.Year,
+            Taken = taken
+        };
+        return tags.HasWritableTags;
+    }
+
+    public static MediaTagFields FromFile(string path, bool isDirectory)
+    {
+        var name = PathRules.GetFileName(path);
+        var (stem, extension) = WindowsFileNames.Split(name);
+        var parent = PathRules.GetFileName(PathRules.Parent(path).TrimEnd('\\'));
+        DateTimeOffset? created = null;
+        DateTimeOffset? modified = null;
+        var disk = PathRules.ToExtended(path);
+        try
+        {
+            if (isDirectory)
+            {
+                if (Directory.Exists(disk))
+                {
+                    created = Directory.GetCreationTime(disk);
+                    modified = Directory.GetLastWriteTime(disk);
+                }
+            }
+            else if (System.IO.File.Exists(disk))
+            {
+                created = System.IO.File.GetCreationTime(disk);
+                modified = System.IO.File.GetLastWriteTime(disk);
+            }
+        }
+        catch (IOException)
+        {
+            // Timestamps are optional.
+        }
+        catch (UnauthorizedAccessException)
+        {
+        }
+
+        return new MediaTagFields
+        {
+            Stem = isDirectory ? name : stem,
+            Extension = isDirectory ? "" : extension,
+            Parent = parent,
+            Created = created,
+            Modified = modified
+        };
+    }
+
+    public static MediaTagFields WithProject(MediaTagFields fields, string? repoRoot)
+    {
+        var project = string.IsNullOrWhiteSpace(repoRoot)
+            ? fields.Parent
+            : PathRules.GetFileName(repoRoot.TrimEnd('\\'));
+        return fields with { Project = string.IsNullOrWhiteSpace(project) ? fields.Parent : project };
+    }
+
+    private static int CountTokens(string pattern) => TokenRx.Matches(pattern).Count;
+
+    private static string Capture(string name, bool last)
+    {
+        var key = name.ToLowerInvariant() switch
+        {
+            "track" or "trackcount" or "year" or "width" or "height" or "counter" => @"\d+",
+            _ => last ? ".+" : ".+?"
+        };
+        return $"(?<{SanitizeGroup(name)}>{key})";
+    }
+
+    private static string SanitizeGroup(string name)
+        => string.Concat(name.Where(char.IsLetterOrDigit));
+
+    private static string? Value(Match match, string name)
+    {
+        var group = SanitizeGroup(name);
+        return match.Groups[group].Success ? match.Groups[group].Value.Trim() : null;
+    }
+
+    private static int? ParseInt(string? text)
+        => int.TryParse(text, NumberStyles.Integer, CultureInfo.InvariantCulture, out var value) ? value : null;
+
+    private static string? Resolve(string name, string? format, MediaTagFields tags, string counter)
+        => name.ToLowerInvariant() switch
+        {
+            "artist" => Sanitize(tags.Artist),
+            "title" => Sanitize(tags.Title),
+            "album" => Sanitize(tags.Album),
+            "genre" => Sanitize(tags.Genre),
+            "comment" => Sanitize(tags.Comment),
+            "track" => Number(tags.Track, format),
+            "trackcount" => Number(tags.TrackCount, format),
+            "year" => Number(tags.Year, format),
+            "width" => Number(tags.Width, format),
+            "height" => Number(tags.Height, format),
+            "counter" => counter,
+            "name" or "stem" => Sanitize(tags.Stem),
+            "extension" => Sanitize(tags.Extension),
+            "parent" => Sanitize(tags.Parent),
+            "project" => Sanitize(tags.Project ?? tags.Parent),
+            "createddate" or "date" => Date(tags.Taken ?? tags.Created, format),
+            "takendate" or "datetaken" => Date(tags.Taken ?? tags.Created, format),
+            "modifieddate" => Date(tags.Modified, format),
+            _ => null
+        };
+
+    private static string Sanitize(string? value)
+        => WindowsFileNames.SanitizeForFileName(value ?? "");
+
+    private static string Number(int? value, string? format)
+    {
+        if (value is null)
+        {
+            return "";
+        }
+
+        if (string.IsNullOrWhiteSpace(format))
+        {
+            return value.Value.ToString(CultureInfo.InvariantCulture);
+        }
+
+        try
+        {
+            return value.Value.ToString(format, CultureInfo.InvariantCulture);
+        }
+        catch (FormatException)
+        {
+            return value.Value.ToString(CultureInfo.InvariantCulture);
+        }
+    }
+
+    private static string Date(DateTimeOffset? value, string? format)
+    {
+        if (value is null)
+        {
+            return "";
+        }
+
+        var text = value.Value.ToLocalTime().ToString(
+            string.IsNullOrWhiteSpace(format) ? "yyyy-MM-dd" : format,
+            CultureInfo.InvariantCulture);
+        return WindowsFileNames.SanitizeForFileName(text);
+    }
+
+    private static string? DateFormat(string pattern)
+    {
+        foreach (Match match in TokenRx.Matches(pattern))
+        {
+            var name = match.Groups[1].Value.ToLowerInvariant();
+            if ((name is "takendate" or "datetaken" or "createddate" or "date")
+                && match.Groups[2].Success)
+            {
+                return match.Groups[2].Value;
+            }
+        }
+
+        return null;
+    }
+
+    private static DateTimeOffset? ParseDate(string? text, string? format)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            return null;
+        }
+
+        var formats = new List<string>();
+        if (!string.IsNullOrWhiteSpace(format))
+        {
+            formats.Add(format);
+        }
+
+        formats.AddRange(["yyyy-MM-dd", "yyyyMMdd", "yyyy-MM-dd HH-mm", "yyyy-MM-dd-HH-mm-ss"]);
+        foreach (var candidate in formats)
+        {
+            if (DateTime.TryParseExact(
+                    text,
+                    candidate,
+                    CultureInfo.InvariantCulture,
+                    DateTimeStyles.AssumeLocal,
+                    out var exact))
+            {
+                return new DateTimeOffset(exact);
+            }
+        }
+
+        return DateTimeOffset.TryParse(text, CultureInfo.InvariantCulture, DateTimeStyles.AssumeLocal, out var parsed)
+            ? parsed
+            : null;
+    }
+}

src/Explorer.Application/FilenamePatterns.cs

@@ -0,0 +1,88 @@
+namespace Explorer.Application;
+
+public static class FilenamePatterns
+{
+    public const int MaxCount = 24;
+
+    public static IReadOnlyList<string> BuiltIn { get; } =
+    [
+        "{Artist} - {Title}",
+        "{Track:00} - {Title}",
+        "{TakenDate}_{Name}",
+        "{CreatedDate}_{Name}",
+        "{Project}_{Name}"
+    ];
+
+    public static IReadOnlyList<string> Combine(IEnumerable<string>? saved)
+    {
+        var result = new List<string>();
+        var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        foreach (var pattern in BuiltIn.Concat(saved ?? []))
+        {
+            if (!TryNormalize(pattern, out var text) || !seen.Add(text))
+            {
+                continue;
+            }
+
+            result.Add(text);
+            if (result.Count >= MaxCount)
+            {
+                break;
+            }
+        }
+
+        return result;
+    }
+
+    public static IReadOnlyList<string> Add(IEnumerable<string>? saved, string pattern)
+    {
+        if (!TryNormalize(pattern, out var text))
+        {
+            return Normalize(saved);
+        }
+
+        var next = new List<string> { text };
+        var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { text };
+        foreach (var existing in Normalize(saved))
+        {
+            if (seen.Add(existing))
+            {
+                next.Add(existing);
+            }
+
+            if (next.Count >= MaxCount)
+            {
+                break;
+            }
+        }
+
+        return next;
+    }
+
+    public static IReadOnlyList<string> Normalize(IEnumerable<string>? saved)
+    {
+        var result = new List<string>();
+        var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        foreach (var raw in saved ?? [])
+        {
+            if (!TryNormalize(raw, out var text) || BuiltIn.Contains(text, StringComparer.OrdinalIgnoreCase) || !seen.Add(text))
+            {
+                continue;
+            }
+
+            result.Add(text);
+            if (result.Count >= MaxCount)
+            {
+                break;
+            }
+        }
+
+        return result;
+    }
+
+    public static bool TryNormalize(string? raw, out string pattern)
+    {
+        pattern = (raw ?? "").Trim();
+        return pattern.Length is > 0 and <= 200;
+    }
+}

src/Explorer.Application/IMediaTagService.cs

@@ -0,0 +1,9 @@
+using Explorer.Domain;
+
+namespace Explorer.Application;
+
+public interface IMediaTagService
+{
+    bool TryRead(string path, out MediaTagFields fields);
+    bool TryWrite(string path, MediaTagFields fields, out string? error);
+}

src/Explorer.Application/MoveToPlanner.cs

@@ -0,0 +1,116 @@
+using Explorer.Domain;
+
+namespace Explorer.Application;
+
+public sealed class MoveToPlanner
+{
+    public OperationPlan Build(
+        IReadOnlyList<RenameSubject> subjects,
+        string pattern,
+        Func<string, bool>? pathExists = null,
+        Func<string, bool>? wouldHydrate = null)
+    {
+        if (subjects.Count == 0)
+        {
+            return new OperationPlan
+            {
+                Issues = [new PlanIssue(PlanIssueSeverity.Error, "Select files or folders to move.")]
+            };
+        }
+
+        var issues = new List<PlanIssue>();
+        var operations = new List<PlannedOperation>();
+        var preview = new List<ProfilePreviewRow>();
+        var taken = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+
+        foreach (var subject in subjects)
+        {
+            if (wouldHydrate?.Invoke(subject.FullPath) == true)
+            {
+                issues.Add(new PlanIssue(
+                    PlanIssueSeverity.Error,
+                    "This file is online-only. Moving it would download it.",
+                    subject.FullPath));
+                preview.Add(new ProfilePreviewRow("Skip", subject.Name, "Online-only"));
+                continue;
+            }
+
+            if (!DestinationPattern.TryResolve(pattern, subject, out var dest, out var error))
+            {
+                issues.Add(new PlanIssue(PlanIssueSeverity.Error, error ?? "Invalid destination.", subject.FullPath));
+                preview.Add(new ProfilePreviewRow("Skip", subject.Name, error));
+                continue;
+            }
+
+            dest = PathRules.FromExtended(dest);
+            if (IsExampleHost(dest))
+            {
+                issues.Add(new PlanIssue(
+                    PlanIssueSeverity.Error,
+                    @"Replace \\host\share with a real server or mapped drive, or use Browse….",
+                    dest));
+                preview.Add(new ProfilePreviewRow("Skip", dest, "Example host — not a real share"));
+                continue;
+            }
+            var source = PathRules.FromExtended(subject.FullPath);
+            if (Same(source, dest))
+            {
+                preview.Add(new ProfilePreviewRow("Skip", dest, "Already there"));
+                continue;
+            }
+
+            if (subject.IsDirectory && SameOrUnder(source, dest))
+            {
+                issues.Add(new PlanIssue(
+                    PlanIssueSeverity.Error,
+                    "Would move a folder into itself.",
+                    subject.FullPath));
+                preview.Add(new ProfilePreviewRow("Skip", dest, "Would move a folder into itself."));
+                continue;
+            }
+
+            if (!taken.Add(dest) || (pathExists?.Invoke(dest) == true && !Same(source, dest)))
+            {
+                issues.Add(new PlanIssue(PlanIssueSeverity.Error, "A file with that name already exists.", dest));
+                preview.Add(new ProfilePreviewRow("Skip", dest, "A file with that name already exists."));
+                continue;
+            }
+
+            operations.Add(new PlannedOperation(TransferOp.Move, subject.FullPath, dest));
+            preview.Add(new ProfilePreviewRow("Move", dest, subject.Name));
+        }
+
+        if (issues.Any(i => i.Severity == PlanIssueSeverity.Error))
+        {
+            return new OperationPlan { Issues = issues, ProfilePreview = preview };
+        }
+
+        return new OperationPlan
+        {
+            Operations = operations,
+            Issues = issues,
+            ProfilePreview = preview
+        };
+    }
+
+    private static bool Same(string left, string right)
+    {
+        var a = PathRules.FromExtended(left).TrimEnd('\\');
+        var b = PathRules.FromExtended(right).TrimEnd('\\');
+        return a.Equals(b, StringComparison.OrdinalIgnoreCase);
+    }
+
+    private static bool SameOrUnder(string parent, string child)
+    {
+        var p = PathRules.FromExtended(parent).TrimEnd('\\');
+        var c = PathRules.FromExtended(child).TrimEnd('\\');
+        return c.StartsWith(p + "\\", StringComparison.OrdinalIgnoreCase);
+    }
+
+    private static bool IsExampleHost(string destination)
+    {
+        var root = PathRules.CanonicalUncRoot(destination);
+        return root.Equals(@"\\host", StringComparison.OrdinalIgnoreCase)
+               || root.StartsWith(@"\\host\", StringComparison.OrdinalIgnoreCase);
+    }
+}

src/Explorer.Application/RenamePlanner.cs

@@ -10,7 +10,8 @@ public sealed class RenamePlanner
     public OperationPlan Build(
         IReadOnlyList<RenameSubject> subjects,
         RenameRuleSet rules,
-        Func<string, bool>? pathExists = null)
+        Func<string, bool>? pathExists = null,
+        IReadOnlyDictionary<string, MediaTagFields>? tagsByPath = null)
     {
         var issues = new List<PlanIssue>();
         Regex? regex = null;
@@ -42,7 +43,21 @@ public sealed class RenamePlanner
             string newName;
             try
             {
-                newName = Apply(subject.Name, rules, index, regex);
+                var tags = tagsByPath is not null && tagsByPath.TryGetValue(subject.FullPath, out var found)
+                    ? found
+                    : FilenamePattern.FromFile(subject.FullPath, subject.IsDirectory);
+                if (NeedsMedia(rules) && tags.HydrationBlocked)
+                {
+                    issues.Add(new PlanIssue(
+                        PlanIssueSeverity.Error,
+                        "This file is online-only. Reading tags would download it.",
+                        subject.FullPath));
+                    rows.Add((subject, subject.Name, subject.FullPath, true, "Online-only"));
+                    index++;
+                    continue;
+                }
+
+                newName = Apply(subject.Name, rules, index, regex, tags);
             }
             catch (RegexMatchTimeoutException)
             {
@@ -186,27 +201,38 @@ public sealed class RenamePlanner
         return new OperationPlan { Operations = operations };
     }
 
-    internal static string Apply(string name, RenameRuleSet rules, int index, Regex? regex)
+    internal static string Apply(string name, RenameRuleSet rules, int index, Regex? regex, MediaTagFields? tags = null)
     {
         var (stem, extension) = WindowsFileNames.Split(name);
-        var text = rules.IncludeExtensionInSearch ? name : stem;
+        tags ??= new MediaTagFields { Stem = stem, Extension = extension };
-        text = Replace(text, rules, regex);
-        text = (rules.Prefix ?? "") + text + (rules.Suffix ?? "");
         var counter = rules.UseCounter
             ? WindowsFileNames.FormatCounter(rules.CounterStart + index * Math.Max(1, rules.CounterStep), rules.CounterPadding)
             : "";
+        string text;
+        if (!string.IsNullOrWhiteSpace(rules.NamePattern))
+        {
+            text = FilenamePattern.Expand(rules.NamePattern, tags, counter);
+        }
+        else
+        {
+            text = rules.IncludeExtensionInSearch ? name : stem;
+            text = Replace(text, rules, regex);
+        }
+
+        text = (rules.Prefix ?? "") + text + (rules.Suffix ?? "");
         if (text.Contains("{Counter}", StringComparison.OrdinalIgnoreCase))
         {
             text = Regex.Replace(text, "\\{Counter\\}", counter, RegexOptions.IgnoreCase);
         }
-        else if (rules.UseCounter)
+        else if (rules.UseCounter && string.IsNullOrWhiteSpace(rules.NamePattern))
         {
             text += counter;
         }
 
+        text = FilenamePattern.Expand(text, tags, counter);
         text = WindowsFileNames.ApplyCase(text, rules.CaseMode);
         text = text.Replace("{Extension}", extension, StringComparison.OrdinalIgnoreCase);
-        if (rules.IncludeExtensionInSearch && !rules.ChangeExtension)
+        if (rules.IncludeExtensionInSearch && !rules.ChangeExtension && string.IsNullOrWhiteSpace(rules.NamePattern))
         {
             return text;
         }
@@ -215,6 +241,13 @@ public sealed class RenamePlanner
         return WindowsFileNames.Join(text, newExt);
     }
 
+    private static bool NeedsMedia(RenameRuleSet rules)
+        => FilenamePattern.UsesMediaContent(rules.NamePattern)
+           || FilenamePattern.UsesMediaContent(rules.Prefix)
+           || FilenamePattern.UsesMediaContent(rules.Suffix)
+           || FilenamePattern.UsesMediaContent(rules.Replace)
+           || FilenamePattern.UsesMediaContent(rules.Search);
+
     private static string Replace(string text, RenameRuleSet rules, Regex? regex)
     {
         if (string.IsNullOrEmpty(rules.Search))

src/Explorer.Application/TagRenamePlanner.cs

@@ -0,0 +1,123 @@
+using Explorer.Domain;
+
+namespace Explorer.Application;
+
+public sealed class TagRenamePlanner
+{
+    public OperationPlan BuildWrite(
+        IReadOnlyList<RenameSubject> subjects,
+        string pattern,
+        IReadOnlyDictionary<string, MediaTagFields> current,
+        Func<string, bool>? wouldHydrate = null)
+    {
+        var issues = new List<PlanIssue>();
+        var preview = new List<TagPreviewRow>();
+        var operations = new List<PlannedOperation>();
+        foreach (var subject in subjects)
+        {
+            if (subject.IsDirectory)
+            {
+                preview.Add(Row(subject, current, null, "Folders do not have media tags.", true, true));
+                continue;
+            }
+
+            if (wouldHydrate?.Invoke(subject.FullPath) == true)
+            {
+                issues.Add(new PlanIssue(
+                    PlanIssueSeverity.Error,
+                    "This file is online-only. Writing tags would download it.",
+                    subject.FullPath));
+                preview.Add(Row(subject, current, null, "Online-only", true, true));
+                continue;
+            }
+
+            var (stem, _) = WindowsFileNames.Split(subject.Name);
+            if (!FilenamePattern.TryParse(pattern, stem, out var parsed, out var error))
+            {
+                issues.Add(new PlanIssue(PlanIssueSeverity.Error, error ?? "The name does not match the pattern.", subject.FullPath));
+                preview.Add(Row(subject, current, parsed, error, true, true));
+                continue;
+            }
+
+            var existing = current.GetValueOrDefault(subject.FullPath) ?? new MediaTagFields();
+            var unchanged = SameWritable(existing, parsed);
+            preview.Add(Row(subject, current, parsed, unchanged ? "Unchanged" : null, unchanged, true));
+            if (!unchanged)
+            {
+                operations.Add(new PlannedOperation(TransferOp.WriteTags, subject.FullPath, parsed.Payload()));
+            }
+        }
+
+        if (issues.Any(i => i.Severity == PlanIssueSeverity.Error))
+        {
+            return new OperationPlan { Issues = issues, TagPreview = preview };
+        }
+
+        return new OperationPlan { Operations = operations, Issues = issues, TagPreview = preview };
+    }
+
+    public OperationPlan BuildRename(
+        IReadOnlyList<RenameSubject> subjects,
+        string pattern,
+        IReadOnlyDictionary<string, MediaTagFields> current,
+        RenamePlanner rename,
+        Func<string, bool>? pathExists = null,
+        Func<string, bool>? wouldHydrate = null)
+    {
+        var issues = new List<PlanIssue>();
+        foreach (var subject in subjects)
+        {
+            if (wouldHydrate?.Invoke(subject.FullPath) == true
+                && FilenamePattern.UsesMediaContent(pattern))
+            {
+                issues.Add(new PlanIssue(
+                    PlanIssueSeverity.Error,
+                    "This file is online-only. Reading tags would download it.",
+                    subject.FullPath));
+            }
+        }
+
+        if (issues.Count > 0)
+        {
+            return new OperationPlan { Issues = issues };
+        }
+
+        return rename.Build(
+            subjects,
+            new RenameRuleSet { NamePattern = pattern },
+            pathExists,
+            current);
+    }
+
+    private static TagPreviewRow Row(
+        RenameSubject subject,
+        IReadOnlyDictionary<string, MediaTagFields> current,
+        MediaTagFields? parsed,
+        string? status,
+        bool tagsUnchanged,
+        bool nameUnchanged)
+    {
+        var fields = parsed ?? current.GetValueOrDefault(subject.FullPath) ?? new MediaTagFields();
+        return new TagPreviewRow(
+            subject.FullPath,
+            subject.Name,
+            fields.Artist ?? "",
+            fields.Title ?? "",
+            fields.Album ?? "",
+            fields.Track?.ToString() ?? "",
+            fields.Year?.ToString() ?? "",
+            fields.Genre ?? "",
+            null,
+            status,
+            tagsUnchanged,
+            nameUnchanged);
+    }
+
+    private static bool SameWritable(MediaTagFields left, MediaTagFields right)
+        => string.Equals(left.Artist ?? "", right.Artist ?? "", StringComparison.Ordinal)
+           && string.Equals(left.Title ?? "", right.Title ?? "", StringComparison.Ordinal)
+           && string.Equals(left.Album ?? "", right.Album ?? "", StringComparison.Ordinal)
+           && left.Track == right.Track
+           && left.Year == right.Year
+           && string.Equals(left.Genre ?? "", right.Genre ?? "", StringComparison.Ordinal);
+}

src/Explorer.Application/UiPreferencesStore.cs

@@ -42,7 +42,9 @@ public sealed record UiPreferences(
     bool PreferFavoritesInTree = false,
     bool BackgroundMaintenanceWhenIdle = true,
     int IdleMaintenanceMinutes = 10,
-    bool IdleMaintenanceAcOnly = true)
+    bool IdleMaintenanceAcOnly = true,
+    IReadOnlyList<string>? NamePatterns = null,
+    IReadOnlyList<string>? MoveToPatterns = null)
 {
     public static UiPreferences Default { get; } = new("Dark", false, false, false, true, false);
 }
@@ -99,6 +101,8 @@ public sealed class UiPreferencesStore
                 .. OrganizeLines(preferences),
                 .. LayoutLines(preferences),
                 .. FavoriteLines(preferences),
+                .. NamePatternLines(preferences),
+                .. MoveToPatternLines(preferences),
                 .. SessionLines(preferences)
             ]);
         }
@@ -142,6 +146,8 @@ public sealed class UiPreferencesStore
         var sessionTabs = new List<SessionTabState>();
         var sessionActiveTab = 0;
         var favorites = new List<string>();
+        var namePatterns = new List<string>();
+        var moveToPatterns = new List<string>();
         foreach (var raw in lines)
         {
             var line = raw.Trim();
@@ -280,6 +286,16 @@ public sealed class UiPreferencesStore
             {
                 favorites.Add(value);
             }
+            else if (key.Equals("name-pattern", StringComparison.OrdinalIgnoreCase)
+                     && namePatterns.Count < FilenamePatterns.MaxCount)
+            {
+                namePatterns.Add(value);
+            }
+            else if (key.Equals("move-to", StringComparison.OrdinalIgnoreCase)
+                     && moveToPatterns.Count < DestinationPatterns.MaxCount)
+            {
+                moveToPatterns.Add(value);
+            }
             else if (key.Equals("session-active-tab", StringComparison.OrdinalIgnoreCase)
                      && int.TryParse(value, System.Globalization.NumberStyles.Integer, System.Globalization.CultureInfo.InvariantCulture, out var activeTab)
                      && activeTab >= 0)
@@ -305,7 +321,9 @@ public sealed class UiPreferencesStore
             organizePictures, organizeVideos, organizeAudio, organizeDocuments, organizeInstallers, organizeArchives,
             organizeDevelopment, autoIndexRemovable, backgroundHostAtLogon,
             FavoriteFolders.Normalize(favorites), sessionTabs, sessionActiveTab, preferFavoritesInTree,
-            backgroundMaintenanceWhenIdle, idleMaintenanceMinutes, idleMaintenanceAcOnly);
+            backgroundMaintenanceWhenIdle, idleMaintenanceMinutes, idleMaintenanceAcOnly,
+            FilenamePatterns.Normalize(namePatterns),
+            DestinationPatterns.Normalize(moveToPatterns));
     }
 
     private static IEnumerable<string> SevenZipLines(UiPreferences preferences)
@@ -403,6 +421,22 @@ public sealed class UiPreferencesStore
         }
     }
 
+    private static IEnumerable<string> NamePatternLines(UiPreferences preferences)
+    {
+        foreach (var pattern in FilenamePatterns.Normalize(preferences.NamePatterns))
+        {
+            yield return "name-pattern=" + pattern;
+        }
+    }
+
+    private static IEnumerable<string> MoveToPatternLines(UiPreferences preferences)
+    {
+        foreach (var pattern in DestinationPatterns.Normalize(preferences.MoveToPatterns))
+        {
+            yield return "move-to=" + pattern;
+        }
+    }
+
     private static IEnumerable<string> FavoriteLines(UiPreferences preferences)
     {
         foreach (var path in FavoriteFolders.Normalize(preferences.FavoriteFolders))

src/Explorer.Contracts/IWorkbenchHost.cs

@@ -57,6 +57,10 @@ public interface ITransferHost
         => Task.CompletedTask;
     Task EnqueueConvertAsync(string sourcePath, string destinationPath, ConversionKind kind, CancellationToken cancellationToken = default)
         => Task.CompletedTask;
+    Task EnqueueWriteTagsAsync(string path, string payload, CancellationToken cancellationToken = default)
+        => Task.CompletedTask;
+    Task EnqueueMoveToAsync(string source, string destinationPath, CancellationToken cancellationToken = default)
+        => Task.CompletedTask;
 }
 
 public interface ISourceHost

src/Explorer.Domain/Abstractions/Platform.cs

@@ -23,6 +23,7 @@ public interface IVolumeService
     VolumeFingerprint? Probe(string path);
     VolumeSpace GetSpace(string path);
     bool IsPathReachable(string path);
+    bool TryEnsureReachable(string path) => IsPathReachable(path);
 }
 
 public interface IFileSystemEnumerator

src/Explorer.Domain/Enums.cs

@@ -99,7 +99,8 @@ public enum TransferOp
     Compress,
     AddToArchive,
     VerifyArchive,
-    Convert
+    Convert,
+    WriteTags
 }
 
 public enum ArchiveFormat

src/Explorer.Domain/MediaTags.cs

@@ -0,0 +1,148 @@
+namespace Explorer.Domain;
+
+public sealed record MediaTagFields
+{
+    public string? Artist { get; init; }
+    public string? Title { get; init; }
+    public string? Album { get; init; }
+    public int? Track { get; init; }
+    public int? TrackCount { get; init; }
+    public int? Year { get; init; }
+    public string? Genre { get; init; }
+    public string? Comment { get; init; }
+    public int? Width { get; init; }
+    public int? Height { get; init; }
+    public DateTimeOffset? Created { get; init; }
+    public DateTimeOffset? Modified { get; init; }
+    public DateTimeOffset? Taken { get; init; }
+    public string? Stem { get; init; }
+    public string? Extension { get; init; }
+    public string? Parent { get; init; }
+    public string? Project { get; init; }
+    public bool HydrationBlocked { get; init; }
+    public string? ReadError { get; init; }
+
+    public MediaTagFields Merge(MediaTagFields other)
+        => new()
+        {
+            Artist = other.Artist ?? Artist,
+            Title = other.Title ?? Title,
+            Album = other.Album ?? Album,
+            Track = other.Track ?? Track,
+            TrackCount = other.TrackCount ?? TrackCount,
+            Year = other.Year ?? Year,
+            Genre = other.Genre ?? Genre,
+            Comment = other.Comment ?? Comment,
+            Width = other.Width ?? Width,
+            Height = other.Height ?? Height,
+            Created = other.Created ?? Created,
+            Modified = other.Modified ?? Modified,
+            Taken = other.Taken ?? Taken,
+            Stem = other.Stem ?? Stem,
+            Extension = other.Extension ?? Extension,
+            Parent = other.Parent ?? Parent,
+            Project = other.Project ?? Project,
+            HydrationBlocked = HydrationBlocked || other.HydrationBlocked,
+            ReadError = other.ReadError ?? ReadError
+        };
+
+    public string Payload()
+    {
+        var parts = new List<string>();
+        Add(parts, "Artist", Artist);
+        Add(parts, "Title", Title);
+        Add(parts, "Album", Album);
+        if (Track is int track)
+        {
+            parts.Add("Track=" + track);
+        }
+
+        if (TrackCount is int count)
+        {
+            parts.Add("TrackCount=" + count);
+        }
+
+        if (Year is int year)
+        {
+            parts.Add("Year=" + year);
+        }
+
+        Add(parts, "Genre", Genre);
+        Add(parts, "Comment", Comment);
+        if (Taken is DateTimeOffset taken)
+        {
+            parts.Add("Taken=" + taken.ToString("O"));
+        }
+
+        return string.Join("\n", parts);
+    }
+
+    public static MediaTagFields FromPayload(string? payload)
+    {
+        var fields = new MediaTagFields();
+        if (string.IsNullOrWhiteSpace(payload))
+        {
+            return fields;
+        }
+
+        foreach (var line in payload.Split('\n'))
+        {
+            var split = line.IndexOf('=');
+            if (split <= 0)
+            {
+                continue;
+            }
+
+            var key = line[..split].Trim();
+            var value = Unescape(line[(split + 1)..]);
+            fields = key.ToLowerInvariant() switch
+            {
+                "artist" => fields with { Artist = value },
+                "title" => fields with { Title = value },
+                "album" => fields with { Album = value },
+                "track" when int.TryParse(value, out var track) => fields with { Track = track },
+                "trackcount" when int.TryParse(value, out var count) => fields with { TrackCount = count },
+                "year" when int.TryParse(value, out var year) => fields with { Year = year },
+                "genre" => fields with { Genre = value },
+                "comment" => fields with { Comment = value },
+                "taken" when DateTimeOffset.TryParse(value, System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.RoundtripKind, out var taken) => fields with { Taken = taken },
+                _ => fields
+            };
+        }
+
+        return fields;
+    }
+
+    public bool HasWritableTags
+        => Artist is not null || Title is not null || Album is not null || Track is not null
+           || TrackCount is not null || Year is not null || Genre is not null || Comment is not null
+           || Taken is not null;
+
+    private static void Add(List<string> parts, string key, string? value)
+    {
+        if (value is not null)
+        {
+            parts.Add(key + "=" + Escape(value));
+        }
+    }
+
+    private static string Escape(string value)
+        => value.Replace("\\", "\\\\", StringComparison.Ordinal).Replace("\n", "\\n", StringComparison.Ordinal);
+
+    private static string Unescape(string value)
+        => value.Replace("\\n", "\n", StringComparison.Ordinal).Replace("\\\\", "\\", StringComparison.Ordinal);
+}
+
+public sealed record TagPreviewRow(
+    string SourcePath,
+    string FileName,
+    string Artist,
+    string Title,
+    string Album,
+    string Track,
+    string Year,
+    string Genre,
+    string? ProposedName,
+    string? Status,
+    bool TagsUnchanged,
+    bool NameUnchanged);

src/Explorer.Domain/OperationPlan.cs

@@ -22,6 +22,7 @@ public sealed class OperationPlan
     public IReadOnlyList<SyncPreviewRow> SyncPreview { get; init; } = [];
     public IReadOnlyList<ProfilePreviewRow> ProfilePreview { get; init; } = [];
     public IReadOnlyList<OrganizePreviewRow> OrganizePreview { get; init; } = [];
+    public IReadOnlyList<TagPreviewRow> TagPreview { get; init; } = [];
 
     public bool HasErrors => Issues.Any(i => i.Severity == PlanIssueSeverity.Error);
     public bool CanEnqueue => !HasErrors && Operations.Count > 0;

src/Explorer.Domain/RenameRules.cs

@@ -26,6 +26,7 @@ public sealed class RenameRuleSet
     public RenameCaseMode CaseMode { get; init; }
     public bool ChangeExtension { get; init; }
     public string NewExtension { get; init; } = "";
+    public string NamePattern { get; init; } = "";
 }
 
 public sealed class RenameBatch

src/Explorer.Domain/WindowsFileNames.cs

@@ -61,6 +61,27 @@ public static class WindowsFileNames
         return true;
     }
 
+    public static string SanitizeForFileName(string value)
+    {
+        if (string.IsNullOrEmpty(value))
+        {
+            return "";
+        }
+
+        var chars = value.Trim().ToCharArray();
+        for (var i = 0; i < chars.Length; i++)
+        {
+            var c = chars[i];
+            if (c is '<' or '>' or ':' or '"' or '/' or '\\' or '|' or '?' or '*' || c < 32)
+            {
+                chars[i] = '-';
+            }
+        }
+
+        var text = new string(chars).Trim().TrimEnd('.');
+        return text.Length == 0 ? "" : text;
+    }
+
     public static (string Stem, string Extension) Split(string name)
     {
         var dot = name.LastIndexOf('.');

src/Explorer.FileOperations/FileOperationService.cs

@@ -31,6 +31,14 @@ public sealed class FileOperationService
     public Task MoveAsync(IReadOnlyList<string> sources, string destinationDirectory, CancellationToken cancellationToken = default)
         => _queue.EnqueueMoveAsync(sources, destinationDirectory, cancellationToken);
 
+    public async Task MoveToAsync(IReadOnlyList<PlannedOperation> operations, CancellationToken cancellationToken = default)
+    {
+        foreach (var op in operations.Where(o => o.Op == TransferOp.Move && o.DestinationPath is not null))
+        {
+            await _queue.EnqueueMoveToAsync(op.SourcePath, op.DestinationPath!, cancellationToken).ConfigureAwait(false);
+        }
+    }
+
     public Task DeleteAsync(IReadOnlyList<string> paths, bool permanent = false, CancellationToken cancellationToken = default)
         => _queue.EnqueueDeleteAsync(paths, permanent, cancellationToken);
 
@@ -102,6 +110,14 @@ public sealed class FileOperationService
         }
     }
 
+    public async Task EnqueueWriteTagsAsync(IReadOnlyList<PlannedOperation> operations, CancellationToken cancellationToken = default)
+    {
+        foreach (var op in operations.Where(o => o.Op == TransferOp.WriteTags && o.DestinationPath is not null))
+        {
+            await _queue.EnqueueWriteTagsAsync(op.SourcePath, op.DestinationPath!, cancellationToken).ConfigureAwait(false);
+        }
+    }
+
     public static string UniqueArchivePath(string directory, string stem, string extension)
     {
         extension = extension.Trim().TrimStart('.');

src/Explorer.FileOperations/NativeFileOperationExecutor.cs

@@ -11,25 +11,29 @@ public sealed class NativeFileOperationExecutor : IOperationExecutor
     private readonly IArchiveExecutor? _archives;
     private readonly IHydrationGuard? _hydration;
     private readonly IMediaConversionProvider? _conversion;
+    private readonly IMediaTagService? _tags;
 
     public NativeFileOperationExecutor(
         IShellFileOperations shell,
         IFileSystemEnumerator enumerator,
         IArchiveExecutor? archives = null,
         IHydrationGuard? hydration = null,
-        IMediaConversionProvider? conversion = null)
+        IMediaConversionProvider? conversion = null,
+        IMediaTagService? tags = null)
     {
         _shell = shell;
         _enumerator = enumerator;
         _archives = archives;
         _hydration = hydration;
         _conversion = conversion;
+        _tags = tags;
     }
 
     public bool CanExecute(TransferOp op)
         => op is TransferOp.Copy or TransferOp.Move or TransferOp.Delete or TransferOp.Rename
             or TransferOp.EmptyRecycleBin or TransferOp.Extract or TransferOp.Compress
-            or TransferOp.AddToArchive or TransferOp.VerifyArchive or TransferOp.Convert;
+            or TransferOp.AddToArchive or TransferOp.VerifyArchive or TransferOp.Convert
+            or TransferOp.WriteTags;
 
     public async Task ExecuteAsync(TransferJob job, Func<bool> pauseRequested, Action? reportProgress, CancellationToken cancellationToken)
     {
@@ -59,6 +63,9 @@ public sealed class NativeFileOperationExecutor : IOperationExecutor
             case TransferOp.Convert:
                 await ConvertAsync(job, reportProgress, cancellationToken).ConfigureAwait(false);
                 break;
+            case TransferOp.WriteTags:
+                await WriteTagsAsync(job, cancellationToken).ConfigureAwait(false);
+                break;
             default:
                 job.Status = TransferStatus.Failed;
                 job.Error = $"Unsupported operation {job.Op}";
@@ -96,6 +103,11 @@ public sealed class NativeFileOperationExecutor : IOperationExecutor
 
         job.FilesTotal = Math.Max(job.FilesTotal, 1);
         job.CurrentPath = src;
+        if (!EnsureParent(dst, job))
+        {
+            return;
+        }
+
         var resume = File.Exists(PathRules.ToExtended(dst));
         if (!TransferFile(src, dst, move, resume, job, committed: 0, pauseRequested, reportProgress, stoppingToken, out var error))
         {
@@ -109,6 +121,28 @@ public sealed class NativeFileOperationExecutor : IOperationExecutor
         await Task.CompletedTask.ConfigureAwait(false);
     }
 
+    private static bool EnsureParent(string destination, TransferJob job)
+    {
+        try
+        {
+            var parent = PathRules.Parent(destination);
+            if (string.IsNullOrWhiteSpace(parent)
+                || parent.Equals(destination, StringComparison.OrdinalIgnoreCase))
+            {
+                return true;
+            }
+
+            Directory.CreateDirectory(PathRules.ToExtended(parent));
+            return true;
+        }
+        catch (Exception ex)
+        {
+            job.Status = TransferStatus.Failed;
+            job.Error = ex.Message;
+            return false;
+        }
+    }
+
     private async Task CopyDirectory(
         string src,
         string dst,
@@ -462,6 +496,36 @@ public sealed class NativeFileOperationExecutor : IOperationExecutor
         }
     }
 
+    private async Task WriteTagsAsync(TransferJob job, CancellationToken cancellationToken)
+    {
+        if (_tags is null)
+        {
+            job.Status = TransferStatus.Failed;
+            job.Error = "Tag editing is not available.";
+            return;
+        }
+
+        if (await WouldHydrateAsync(job.SourcePath, cancellationToken).ConfigureAwait(false))
+        {
+            FailHydration(job);
+            return;
+        }
+
+        job.FilesTotal = Math.Max(job.FilesTotal, 1);
+        job.CurrentPath = job.SourcePath;
+        var patch = MediaTagFields.FromPayload(job.DestinationPath);
+        if (!_tags.TryWrite(job.SourcePath, patch, out var error))
+        {
+            job.Status = TransferStatus.Failed;
+            job.Error = string.IsNullOrWhiteSpace(error) ? FileOperationErrors.FileInUse : error;
+            return;
+        }
+
+        job.FilesDone = 1;
+        job.CurrentPath = null;
+        await Task.CompletedTask.ConfigureAwait(false);
+    }
+
     private static ConversionKind ConversionKindOf(TransferJob job)
     {
         if (job.AdditionalSources.Count == 1

src/Explorer.FileOperations/OperationAvailability.cs

@@ -51,6 +51,9 @@ internal static class OperationAvailability
                     yield return PathRules.Parent(job.DestinationPath);
                 }
 
+                yield break;
+            case TransferOp.WriteTags:
+                yield return job.SourcePath;
                 yield break;
             case TransferOp.VerifyArchive:
                 yield return job.SourcePath;
@@ -60,6 +63,14 @@ internal static class OperationAvailability
         }
     }
 
+    public static void TryPrepare(IVolumeService volumes, TransferJob job)
+    {
+        foreach (var path in PathsToCheck(job))
+        {
+            volumes.TryEnsureReachable(path);
+        }
+    }
+
     public static bool IsVolumeReachable(IVolumeService volumes, string path)
     {
         if (string.IsNullOrWhiteSpace(path))

src/Explorer.FileOperations/RenameBatchService.cs

@@ -26,8 +26,11 @@ public sealed class RenameBatchService
         return File.Exists(ext) || Directory.Exists(ext);
     }
 
-    public OperationPlan Preview(IReadOnlyList<RenameSubject> subjects, RenameRuleSet rules)
+    public OperationPlan Preview(
-        => _planner.Build(subjects, rules, PathExists);
+        IReadOnlyList<RenameSubject> subjects,
+        RenameRuleSet rules,
+        IReadOnlyDictionary<string, MediaTagFields>? tagsByPath = null)
+        => _planner.Build(subjects, rules, PathExists, tagsByPath);
 
     public async Task<long> EnqueueAsync(OperationPlan plan, CancellationToken cancellationToken = default)
     {

src/Explorer.FileOperations/TransferQueue.cs

@@ -80,17 +80,20 @@ public sealed class TransferQueue : BackgroundService, ITransferHost, IForegroun
         foreach (var src in sources)
         {
             var dest = Path.Combine(destinationDirectory, PathRules.GetFileName(src));
-            await EnqueueAsync(new TransferJob
+            await EnqueueMoveToAsync(src, dest, cancellationToken).ConfigureAwait(false);
-            {
-                Op = TransferOp.Move,
-                SourcePath = src,
-                DestinationPath = dest,
-                Status = TransferStatus.Queued,
-                CreatedUtc = DateTimeOffset.UtcNow
-            }, cancellationToken).ConfigureAwait(false);
         }
     }
 
+    public Task EnqueueMoveToAsync(string source, string destinationPath, CancellationToken cancellationToken = default)
+        => EnqueueAsync(new TransferJob
+        {
+            Op = TransferOp.Move,
+            SourcePath = source,
+            DestinationPath = destinationPath,
+            Status = TransferStatus.Queued,
+            CreatedUtc = DateTimeOffset.UtcNow
+        }, cancellationToken);
+
     public async Task EnqueueDeleteAsync(IReadOnlyList<string> paths, bool permanent = false, CancellationToken cancellationToken = default)
     {
         await EnqueueAsync(new TransferJob
@@ -178,6 +181,16 @@ public sealed class TransferQueue : BackgroundService, ITransferHost, IForegroun
             AdditionalSources = [kind.ToString()]
         }, cancellationToken);
 
+    public Task EnqueueWriteTagsAsync(string path, string payload, CancellationToken cancellationToken = default)
+        => EnqueueAsync(new TransferJob
+        {
+            Op = TransferOp.WriteTags,
+            SourcePath = path,
+            DestinationPath = payload,
+            Status = TransferStatus.Queued,
+            CreatedUtc = DateTimeOffset.UtcNow
+        }, cancellationToken);
+
     public void PauseAll()
     {
         _queuePaused = true;
@@ -256,18 +269,38 @@ public sealed class TransferQueue : BackgroundService, ITransferHost, IForegroun
 
     public void Retry(long jobId)
     {
+        TransferJob? job;
         lock (_gate)
         {
-            var job = Find(jobId);
+            job = Find(jobId);
-            if (job is null || job.Status != TransferStatus.Failed)
+            if (job is null || job.Status is not (TransferStatus.Failed or TransferStatus.Waiting))
+            {
+                return;
+            }
+        }
+
+        OperationAvailability.TryPrepare(_volumes, job);
+
+        lock (_gate)
+        {
+            if (job.Status is not (TransferStatus.Failed or TransferStatus.Waiting))
             {
                 return;
             }
 
             job.RetryCount++;
-            job.Status = TransferStatus.Queued;
             job.Error = null;
-            job.WaitReason = null;
+            if (OperationAvailability.IsReady(_volumes, job))
+            {
+                job.Status = TransferStatus.Queued;
+                job.WaitReason = null;
+            }
+            else
+            {
+                job.Status = TransferStatus.Waiting;
+                job.WaitReason = FileOperationErrors.DestinationUnavailable;
+            }
+
             QueuePersist(job);
         }
 
@@ -392,12 +425,23 @@ public sealed class TransferQueue : BackgroundService, ITransferHost, IForegroun
 
     public void NotifyAvailability()
     {
+        List<TransferJob> waiting;
+        lock (_gate)
+        {
+            waiting = _jobs.Where(j => j.Status == TransferStatus.Waiting).ToList();
+        }
+
+        foreach (var job in waiting)
+        {
+            OperationAvailability.TryPrepare(_volumes, job);
+        }
+
         var resumed = false;
         lock (_gate)
         {
-            foreach (var job in _jobs.Where(j => j.Status == TransferStatus.Waiting))
+            foreach (var job in waiting)
             {
-                if (!OperationAvailability.IsReady(_volumes, job))
+                if (job.Status != TransferStatus.Waiting || !OperationAvailability.IsReady(_volumes, job))
                 {
                     continue;
                 }
@@ -418,6 +462,11 @@ public sealed class TransferQueue : BackgroundService, ITransferHost, IForegroun
 
     private async Task EnqueueAsync(TransferJob job, CancellationToken cancellationToken)
     {
+        if (!OperationAvailability.IsReady(_volumes, job))
+        {
+            OperationAvailability.TryPrepare(_volumes, job);
+        }
+
         if (!OperationAvailability.IsReady(_volumes, job))
         {
             job.Status = TransferStatus.Waiting;
@@ -462,6 +511,11 @@ public sealed class TransferQueue : BackgroundService, ITransferHost, IForegroun
                 continue;
             }
 
+            if (!OperationAvailability.IsReady(_volumes, job))
+            {
+                OperationAvailability.TryPrepare(_volumes, job);
+            }
+
             if (!OperationAvailability.IsReady(_volumes, job))
             {
                 job.Status = TransferStatus.Waiting;

src/Explorer.Hosting.Client/ExplorerHostClientServices.cs

@@ -57,6 +57,7 @@ public static class ExplorerHostClientServices
         services.AddSingleton<IHydrationGuard, HydrationGuard>();
         services.AddSingleton<IArchiveExecutor, SevenZipArchiveExecutor>();
         services.AddSingleton<IMediaConversionProvider, FfmpegConversionExecutor>();
+        services.AddSingleton<IMediaTagService, TagLibMediaTagService>();
         services.AddSingleton<WindowsGitStatusProvider>();
         services.AddSingleton<IGitStatusProvider>(sp => sp.GetRequiredService<WindowsGitStatusProvider>());
         services.AddSingleton<IGitCommandProvider>(sp => sp.GetRequiredService<WindowsGitStatusProvider>());

src/Explorer.Hosting.Client/Ipc/WorkbenchPipeClient.cs

@@ -504,6 +504,8 @@ public sealed class WorkbenchPipeClient : IWorkbenchHost, ICloudOverlay, IHostCo
             => _client.CallAsync("Transfers.EnqueueCopy", cancellationToken, dest: destinationDirectory, paths: sources.ToArray());
         public Task EnqueueMoveAsync(IReadOnlyList<string> sources, string destinationDirectory, CancellationToken cancellationToken = default)
             => _client.CallAsync("Transfers.EnqueueMove", cancellationToken, dest: destinationDirectory, paths: sources.ToArray());
+        public Task EnqueueMoveToAsync(string source, string destinationPath, CancellationToken cancellationToken = default)
+            => _client.CallAsync("Transfers.EnqueueMoveTo", cancellationToken, s: source, dest: destinationPath);
         public Task EnqueueDeleteAsync(IReadOnlyList<string> paths, bool permanent = false, CancellationToken cancellationToken = default)
             => _client.CallAsync("Transfers.EnqueueDelete", cancellationToken, paths: paths.ToArray(), flag: permanent);
         public Task EnqueueRenameAsync(string path, string newName, CancellationToken cancellationToken = default)
@@ -520,6 +522,8 @@ public sealed class WorkbenchPipeClient : IWorkbenchHost, ICloudOverlay, IHostCo
             => _client.CallAsync("Transfers.EnqueueVerifyArchive", cancellationToken, s: archivePath);
         public Task EnqueueConvertAsync(string sourcePath, string destinationPath, ConversionKind kind, CancellationToken cancellationToken = default)
             => _client.CallAsync("Transfers.EnqueueConvert", cancellationToken, s: kind.ToString(), dest: destinationPath, paths: [sourcePath]);
+        public Task EnqueueWriteTagsAsync(string path, string payload, CancellationToken cancellationToken = default)
+            => _client.CallAsync("Transfers.EnqueueWriteTags", cancellationToken, s: path, dest: payload);
         public void RaiseChanged() => Changed?.Invoke(this, EventArgs.Empty);
         public void RaiseFinished(TransferJob job) => JobFinished?.Invoke(this, job);
     }

src/Explorer.Hosting/ExplorerHostServices.cs

@@ -51,6 +51,7 @@ public static class ExplorerHostServices
         services.AddSingleton<IHydrationGuard, HydrationGuard>();
         services.AddSingleton<IArchiveExecutor, SevenZipArchiveExecutor>();
         services.AddSingleton<IMediaConversionProvider, FfmpegConversionExecutor>();
+        services.AddSingleton<IMediaTagService, TagLibMediaTagService>();
         services.AddSingleton<WindowsGitStatusProvider>();
         services.AddSingleton<IGitStatusProvider>(sp => sp.GetRequiredService<WindowsGitStatusProvider>());
         services.AddSingleton<IGitCommandProvider>(sp => sp.GetRequiredService<WindowsGitStatusProvider>());

src/Explorer.Hosting/Ipc/WorkbenchPipeServer.cs

@@ -383,6 +383,9 @@ public sealed class WorkbenchPipeServer : BackgroundService
                 case "Transfers.EnqueueMove":
                     await Workbench.Transfers.EnqueueMoveAsync(request.Paths ?? [], request.Dest ?? "").ConfigureAwait(false);
                     return reply;
+                case "Transfers.EnqueueMoveTo":
+                    await Workbench.Transfers.EnqueueMoveToAsync(request.S ?? "", request.Dest ?? "").ConfigureAwait(false);
+                    return reply;
                 case "Transfers.EnqueueDelete":
                     await Workbench.Transfers.EnqueueDeleteAsync(request.Paths ?? [], request.Flag == true).ConfigureAwait(false);
                     return reply;
@@ -411,6 +414,9 @@ public sealed class WorkbenchPipeServer : BackgroundService
                     var convertSource = request.Paths is { Length: > 0 } paths ? paths[0] : "";
                     await Workbench.Transfers.EnqueueConvertAsync(convertSource, request.Dest ?? "", convertKind).ConfigureAwait(false);
                     return reply;
+                case "Transfers.EnqueueWriteTags":
+                    await Workbench.Transfers.EnqueueWriteTagsAsync(request.S ?? "", request.Dest ?? "").ConfigureAwait(false);
+                    return reply;
                 case "Sources.Refresh":
                     await Workbench.Sources.RefreshAsync().ConfigureAwait(false);
                     return reply;

src/Explorer.Presentation/ViewModels/BatchRenameViewModel.cs

@@ -12,6 +12,11 @@ public sealed partial class BatchRenameViewModel : ObservableObject
     private readonly RenamePlanner _planner;
     private readonly RenameBatchService _batches;
     private readonly IReadOnlyList<RenameSubject> _subjects;
+    private readonly IMediaTagService? _tags;
+    private readonly IHydrationGuard? _hydration;
+    private readonly UiPreferencesStore? _preferences;
+    private readonly IGitStatusProvider? _git;
+    private readonly Dictionary<string, MediaTagFields> _metadata = new(StringComparer.OrdinalIgnoreCase);
 
     [ObservableProperty] private string _search = "";
     [ObservableProperty] private string _replace = "";
@@ -27,22 +32,40 @@ public sealed partial class BatchRenameViewModel : ObservableObject
     [ObservableProperty] private RenameCaseMode _caseMode = RenameCaseMode.Unchanged;
     [ObservableProperty] private bool _changeExtension;
     [ObservableProperty] private string _newExtension = "";
+    [ObservableProperty] private string _namePattern = "";
     [ObservableProperty] private string _status = "";
     [ObservableProperty] private bool _canQueue;
 
     public BatchRenameViewModel(
         IReadOnlyList<RenameSubject> subjects,
         RenamePlanner planner,
-        RenameBatchService batches)
+        RenameBatchService batches,
+        IMediaTagService? tags = null,
+        IHydrationGuard? hydration = null,
+        UiPreferencesStore? preferences = null,
+        IGitStatusProvider? git = null)
     {
         _subjects = subjects;
         _planner = planner;
         _batches = batches;
+        _tags = tags;
+        _hydration = hydration;
+        _preferences = preferences;
+        _git = git;
         Rows = [];
+        PatternChoices = new ObservableCollection<string>(
+            FilenamePatterns.Combine(preferences?.Load().NamePatterns));
+        foreach (var subject in _subjects)
+        {
+            _metadata[subject.FullPath] = Seed(subject);
+        }
+
         Rebuild();
+        _ = LoadMediaAsync();
     }
 
     public ObservableCollection<RenamePreviewRow> Rows { get; }
+    public ObservableCollection<string> PatternChoices { get; }
     public IReadOnlyList<RenameCaseOption> CaseOptions { get; } =
     [
         new("Leave case", RenameCaseMode.Unchanged),
@@ -68,13 +91,14 @@ public sealed partial class BatchRenameViewModel : ObservableObject
         CounterPadding = Math.Max(0, CounterPadding),
         CaseMode = CaseMode,
         ChangeExtension = ChangeExtension,
-        NewExtension = NewExtension
+        NewExtension = NewExtension,
+        NamePattern = NamePattern
     };
 
     [RelayCommand]
     public async Task QueueAsync()
     {
-        var plan = _batches.Preview(_subjects, Rules);
+        var plan = _batches.Preview(_subjects, Rules, _metadata);
         if (!plan.CanEnqueue)
         {
             Status = plan.Issues.FirstOrDefault()?.Message ?? "Nothing to rename.";
@@ -85,6 +109,27 @@ public sealed partial class BatchRenameViewModel : ObservableObject
         CloseRequested?.Invoke(this, EventArgs.Empty);
     }
 
+    [RelayCommand]
+    public void SavePattern()
+    {
+        if (_preferences is null || !FilenamePatterns.TryNormalize(NamePattern, out var pattern))
+        {
+            return;
+        }
+
+        var stored = _preferences.Load();
+        var next = FilenamePatterns.Add(stored.NamePatterns, pattern);
+        _preferences.Save(stored with { NamePatterns = next });
+        PatternChoices.Clear();
+        foreach (var item in FilenamePatterns.Combine(next))
+        {
+            PatternChoices.Add(item);
+        }
+
+        NamePattern = pattern;
+        Status = "Pattern saved.";
+    }
+
     partial void OnSearchChanged(string value) => Rebuild();
     partial void OnReplaceChanged(string value) => Rebuild();
     partial void OnUseRegexChanged(bool value) => Rebuild();
@@ -99,10 +144,39 @@ public sealed partial class BatchRenameViewModel : ObservableObject
     partial void OnCaseModeChanged(RenameCaseMode value) => Rebuild();
     partial void OnChangeExtensionChanged(bool value) => Rebuild();
     partial void OnNewExtensionChanged(string value) => Rebuild();
+    partial void OnNamePatternChanged(string value) => Rebuild();
+
+    private async Task LoadMediaAsync()
+    {
+        foreach (var subject in _subjects)
+        {
+            if (subject.IsDirectory)
+            {
+                continue;
+            }
+
+            var current = _metadata.GetValueOrDefault(subject.FullPath) ?? Seed(subject);
+            if (_hydration is not null && await _hydration.WouldHydrateOnReadAsync(subject.FullPath).ConfigureAwait(true))
+            {
+                _metadata[subject.FullPath] = current with { HydrationBlocked = true };
+                continue;
+            }
+
+            await Task.Run(() =>
+            {
+                if (_tags is not null && _tags.TryRead(subject.FullPath, out var media))
+                {
+                    _metadata[subject.FullPath] = current.Merge(media);
+                }
+            }).ConfigureAwait(true);
+        }
+
+        Rebuild();
+    }
 
     private void Rebuild()
     {
-        var plan = _planner.Build(_subjects, Rules, RenameBatchService.PathExists);
+        var plan = _planner.Build(_subjects, Rules, RenameBatchService.PathExists, _metadata);
         Rows.Clear();
         foreach (var row in plan.Preview)
         {
@@ -118,6 +192,11 @@ public sealed partial class BatchRenameViewModel : ObservableObject
                 ? $"{_subjects.Count} items · nothing to rename"
                 : $"{plan.Operations.Count} will be queued · {unchanged} unchanged";
     }
+
+    private MediaTagFields Seed(RenameSubject subject)
+        => FilenamePattern.WithProject(
+            FilenamePattern.FromFile(subject.FullPath, subject.IsDirectory),
+            _git?.FindRepoRoot(subject.FullPath));
 }
 
 public sealed record RenameCaseOption(string Label, RenameCaseMode Mode);

src/Explorer.Presentation/ViewModels/MainViewModel.cs

@@ -38,6 +38,7 @@ public sealed partial class MainViewModel : ObservableObject
     private readonly IHostConnection? _host;
     private readonly IBackgroundMaintenance? _maintenance;
     private readonly IShellContextMenu? _shellMenu;
+    private readonly IMediaTagService? _tags;
     private bool _hostStopped;
     private List<string> _clipboard = [];
     private bool _clipboardIsCut;
@@ -53,6 +54,8 @@ public sealed partial class MainViewModel : ObservableObject
     [ObservableProperty] private bool _showEmptyRecycleBin;
     [ObservableProperty] private bool _showImportWindowsLocation;
     [ObservableProperty] private bool _showBatchRename;
+    [ObservableProperty] private bool _showMoveTo;
+    [ObservableProperty] private bool _showTags;
     [ObservableProperty] private bool _showRunProfile;
     [ObservableProperty] private bool _showOrganizeFolder;
     [ObservableProperty] private bool _canUndoRenameBatch;
@@ -101,7 +104,8 @@ public sealed partial class MainViewModel : ObservableObject
         IThumbnailService? thumbnails = null,
         IHostConnection? hostConnection = null,
         IBackgroundMaintenance? maintenance = null,
-        IShellContextMenu? shellMenu = null)
+        IShellContextMenu? shellMenu = null,
+        IMediaTagService? tags = null)
     {
         _browse = browse;
         _ops = ops;
@@ -127,6 +131,7 @@ public sealed partial class MainViewModel : ObservableObject
         _host = hostConnection;
         _maintenance = maintenance;
         _shellMenu = shellMenu;
+        _tags = tags;
         if (_host is not null)
         {
             _host.StatusChanged += (_, status) =>
@@ -597,7 +602,43 @@ public sealed partial class MainViewModel : ObservableObject
             return null;
         }
 
-        return new BatchRenameViewModel(items, _renamePlanner, _renameBatches);
+        return new BatchRenameViewModel(items, _renamePlanner, _renameBatches, _tags, _hydration, _preferences, _git);
+    }
+
+    public TagRenameViewModel? CreateTagRenameViewModel()
+    {
+        var items = ActivePane.SelectedItems
+            .Where(i => !LocationRoots.IsVirtual(i.FullPath) && !i.IsDirectory)
+            .Select(i => new RenameSubject(i.FullPath, i.Item.Name, false))
+            .ToList();
+        if (items.Count == 0)
+        {
+            Footer = "Select files to edit tags.";
+            return null;
+        }
+
+        if (_tags is null)
+        {
+            Footer = "Tag editing is not available.";
+            return null;
+        }
+
+        return new TagRenameViewModel(items, _renamePlanner, _renameBatches, _ops, _tags, _hydration, _preferences, _git);
+    }
+
+    public MoveToViewModel? CreateMoveToViewModel()
+    {
+        var items = ActivePane.SelectedItems
+            .Where(i => !LocationRoots.IsVirtual(i.FullPath))
+            .Select(i => new RenameSubject(i.FullPath, i.Item.Name, i.IsDirectory))
+            .ToList();
+        if (items.Count == 0)
+        {
+            Footer = "Select files or folders to move.";
+            return null;
+        }
+
+        return new MoveToViewModel(items, _ops, _hydration, _enumerator, _preferences);
     }
 
     public async Task RefreshUndoRenameAsync()
@@ -875,6 +916,9 @@ public sealed partial class MainViewModel : ObservableObject
             && ActivePane.SelectedItems[0].Item.AvailableToImport;
         ShowBatchRename = ActivePane.SelectedItems.Count > 0
             && ActivePane.SelectedItems.All(i => !LocationRoots.IsVirtual(i.FullPath));
+        ShowMoveTo = ShowBatchRename;
+        ShowTags = ActivePane.SelectedItems.Count > 0
+            && ActivePane.SelectedItems.Any(i => !i.IsDirectory && !LocationRoots.IsVirtual(i.FullPath));
         ShowRunProfile = ShowBatchRename;
         ShowOrganizeFolder = OrganizeSourcePath() is not null;
         var real = ActivePane.SelectedItems.Where(IsRealFileSystemItem).ToList();
@@ -1529,7 +1573,7 @@ public sealed partial class MainViewModel : ObservableObject
         }
 
         Add(job.SourcePath);
-        if (job.Op != TransferOp.Delete && job.Op != TransferOp.EmptyRecycleBin)
+        if (job.Op is not TransferOp.Delete and not TransferOp.EmptyRecycleBin and not TransferOp.WriteTags)
         {
             Add(job.DestinationPath);
         }

src/Explorer.Presentation/ViewModels/MoveToViewModel.cs

@@ -0,0 +1,141 @@
+using System.Collections.ObjectModel;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Explorer.Application;
+using Explorer.Domain;
+using Explorer.Domain.Abstractions;
+using Explorer.FileOperations;
+
+namespace Explorer.Presentation.ViewModels;
+
+public sealed partial class MoveToViewModel : ObservableObject
+{
+    private readonly MoveToPlanner _planner = new();
+    private readonly FileOperationService _ops;
+    private readonly IHydrationGuard _hydration;
+    private readonly IFileSystemEnumerator _enumerator;
+    private readonly UiPreferencesStore _preferences;
+    private readonly IReadOnlyList<RenameSubject> _subjects;
+
+    [ObservableProperty] private string _pattern = "";
+    [ObservableProperty] private string? _selectedChoice;
+    [ObservableProperty] private string _status = "";
+    [ObservableProperty] private bool _canQueue;
+
+    public MoveToViewModel(
+        IReadOnlyList<RenameSubject> subjects,
+        FileOperationService ops,
+        IHydrationGuard hydration,
+        IFileSystemEnumerator enumerator,
+        UiPreferencesStore preferences)
+    {
+        _subjects = subjects;
+        _ops = ops;
+        _hydration = hydration;
+        _enumerator = enumerator;
+        _preferences = preferences;
+        Rows = [];
+        PatternChoices = new ObservableCollection<string>(
+            DestinationPatterns.Combine(preferences.Load().MoveToPatterns));
+        Pattern = DestinationPatterns.Normalize(preferences.Load().MoveToPatterns).FirstOrDefault() ?? "";
+        Rebuild();
+    }
+
+    public ObservableCollection<ProfilePreviewRow> Rows { get; }
+    public ObservableCollection<string> PatternChoices { get; }
+    public IReadOnlyList<string> Tokens { get; } =
+    [
+        "%filename%",
+        "%filename_noext%",
+        "%ext%",
+        "%year%",
+        "%month%",
+        "%parent%",
+        "%source_drive%"
+    ];
+
+    public event EventHandler? CloseRequested;
+
+    partial void OnSelectedChoiceChanged(string? value)
+    {
+        if (!string.IsNullOrWhiteSpace(value))
+        {
+            Pattern = value;
+        }
+    }
+
+    [RelayCommand]
+    public void SavePattern()
+    {
+        Remember(Pattern, "Pattern saved.");
+    }
+
+    [RelayCommand]
+    public async Task QueueAsync()
+    {
+        var plan = Preview();
+        if (!plan.CanEnqueue)
+        {
+            Status = plan.Issues.FirstOrDefault()?.Message ?? "Nothing to move.";
+            return;
+        }
+
+        Remember(Pattern, null);
+        await _ops.MoveToAsync(plan.Operations).ConfigureAwait(true);
+        CloseRequested?.Invoke(this, EventArgs.Empty);
+    }
+
+    partial void OnPatternChanged(string value) => Rebuild();
+
+    private void Rebuild()
+    {
+        var plan = Preview();
+        Rows.Clear();
+        foreach (var row in plan.ProfilePreview)
+        {
+            Rows.Add(row);
+        }
+
+        CanQueue = plan.CanEnqueue;
+        var errors = plan.Issues.Count(i => i.Severity == PlanIssueSeverity.Error);
+        Status = errors > 0
+            ? $"{_subjects.Count} items · {errors} errors"
+            : plan.Operations.Count == 0
+                ? $"{_subjects.Count} items · nothing to move"
+                : $"{plan.Operations.Count} will be queued";
+    }
+
+    private OperationPlan Preview()
+        => _planner.Build(
+            _subjects,
+            Pattern,
+            RenameBatchService.PathExists,
+            path =>
+            {
+                var item = _enumerator.GetItem(path);
+                return item is not null && _hydration.WouldHydrateOnRead(item);
+            });
+
+    private void Remember(string pattern, string? status)
+    {
+        if (!DestinationPatterns.TryNormalize(pattern, out var text))
+        {
+            return;
+        }
+
+        var stored = _preferences.Load();
+        var next = DestinationPatterns.Add(stored.MoveToPatterns, text);
+        _preferences.Save(stored with { MoveToPatterns = next });
+        PatternChoices.Clear();
+        foreach (var item in DestinationPatterns.Combine(next))
+        {
+            PatternChoices.Add(item);
+        }
+
+        Pattern = text;
+        if (status is not null)
+        {
+            Status = status;
+        }
+    }
+}

src/Explorer.Presentation/ViewModels/TagRenameViewModel.cs

@@ -0,0 +1,324 @@
+using System.Collections.ObjectModel;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Explorer.Application;
+using Explorer.Domain;
+using Explorer.FileOperations;
+
+namespace Explorer.Presentation.ViewModels;
+
+public sealed partial class TagRenameViewModel : ObservableObject
+{
+    private readonly TagRenamePlanner _planner = new();
+    private readonly RenamePlanner _rename;
+    private readonly RenameBatchService _batches;
+    private readonly FileOperationService _ops;
+    private readonly IMediaTagService _tags;
+    private readonly IHydrationGuard _hydration;
+    private readonly UiPreferencesStore _preferences;
+    private readonly IGitStatusProvider _git;
+    private readonly IReadOnlyList<RenameSubject> _subjects;
+    private readonly Dictionary<string, MediaTagFields> _original = new(StringComparer.OrdinalIgnoreCase);
+
+    [ObservableProperty] private string _pattern = FilenamePattern.DefaultAudioPattern;
+    [ObservableProperty] private string _status = "";
+    [ObservableProperty] private bool _canQueueTags;
+    [ObservableProperty] private bool _canQueueRename;
+
+    public TagRenameViewModel(
+        IReadOnlyList<RenameSubject> subjects,
+        RenamePlanner rename,
+        RenameBatchService batches,
+        FileOperationService ops,
+        IMediaTagService tags,
+        IHydrationGuard hydration,
+        UiPreferencesStore preferences,
+        IGitStatusProvider git)
+    {
+        _subjects = subjects;
+        _rename = rename;
+        _batches = batches;
+        _ops = ops;
+        _tags = tags;
+        _hydration = hydration;
+        _preferences = preferences;
+        _git = git;
+        Rows = [];
+        PatternChoices = new ObservableCollection<string>(FilenamePatterns.Combine(preferences.Load().NamePatterns));
+        Pattern = PatternChoices.FirstOrDefault() ?? FilenamePattern.DefaultAudioPattern;
+        foreach (var subject in _subjects)
+        {
+            var seed = FilenamePattern.WithProject(
+                FilenamePattern.FromFile(subject.FullPath, subject.IsDirectory),
+                _git.FindRepoRoot(subject.FullPath));
+            _original[subject.FullPath] = seed;
+            Rows.Add(TagRowViewModel.From(subject, seed, Pattern));
+        }
+
+        foreach (var row in Rows)
+        {
+            row.Changed += (_, _) => RefreshStatus();
+        }
+
+        RefreshStatus();
+        _ = LoadAsync();
+    }
+
+    public ObservableCollection<TagRowViewModel> Rows { get; }
+    public ObservableCollection<string> PatternChoices { get; }
+    public event EventHandler? CloseRequested;
+
+    [RelayCommand]
+    public void ApplyFilenameToTags()
+    {
+        foreach (var row in Rows)
+        {
+            var (stem, _) = WindowsFileNames.Split(row.FileName);
+            if (!FilenamePattern.TryParse(Pattern, stem, out var parsed, out var error))
+            {
+                row.Status = error ?? "No match";
+                continue;
+            }
+
+            row.ApplyParsed(parsed);
+            row.RefreshProposedName(Pattern);
+            row.Status = "From filename";
+        }
+
+        RefreshStatus();
+    }
+
+    [RelayCommand]
+    public void ApplyTagsToNames()
+    {
+        foreach (var row in Rows)
+        {
+            row.RefreshProposedName(Pattern);
+            row.Status = row.NameUnchanged ? "Unchanged" : "From tags";
+        }
+
+        RefreshStatus();
+    }
+
+    [RelayCommand]
+    public void SavePattern()
+    {
+        if (!FilenamePatterns.TryNormalize(Pattern, out var pattern))
+        {
+            return;
+        }
+
+        var stored = _preferences.Load();
+        var next = FilenamePatterns.Add(stored.NamePatterns, pattern);
+        _preferences.Save(stored with { NamePatterns = next });
+        PatternChoices.Clear();
+        foreach (var item in FilenamePatterns.Combine(next))
+        {
+            PatternChoices.Add(item);
+        }
+
+        Pattern = pattern;
+        Status = "Pattern saved.";
+    }
+
+    [RelayCommand]
+    public async Task QueueTagsAsync()
+    {
+        var operations = Rows
+            .Where(row => row.TagsDirty)
+            .Select(row => new PlannedOperation(TransferOp.WriteTags, row.Path, row.ToFields().Payload()))
+            .ToList();
+        if (operations.Count == 0)
+        {
+            Status = "No tag changes to write.";
+            return;
+        }
+
+        await _ops.EnqueueWriteTagsAsync(operations).ConfigureAwait(true);
+        CloseRequested?.Invoke(this, EventArgs.Empty);
+    }
+
+    [RelayCommand]
+    public async Task QueueRenameAsync()
+    {
+        ApplyTagsToNames();
+        var current = Rows.ToDictionary(r => r.Path, r => r.ToFields(), StringComparer.OrdinalIgnoreCase);
+        var plan = _planner.BuildRename(
+            _subjects,
+            Pattern,
+            current,
+            _rename,
+            RenameBatchService.PathExists,
+            path => Rows.FirstOrDefault(r => r.Path.Equals(path, StringComparison.OrdinalIgnoreCase))?.HydrationBlocked == true);
+        if (!plan.CanEnqueue)
+        {
+            Status = plan.Issues.FirstOrDefault()?.Message ?? "Nothing to rename.";
+            return;
+        }
+
+        await _batches.EnqueueAsync(plan).ConfigureAwait(true);
+        CloseRequested?.Invoke(this, EventArgs.Empty);
+    }
+
+    partial void OnPatternChanged(string value)
+    {
+        foreach (var row in Rows)
+        {
+            row.RefreshProposedName(value);
+        }
+
+        RefreshStatus();
+    }
+
+    private async Task LoadAsync()
+    {
+        foreach (var row in Rows)
+        {
+            if (row.IsDirectory)
+            {
+                row.Status = "Folder";
+                continue;
+            }
+
+            if (await _hydration.WouldHydrateOnReadAsync(row.Path).ConfigureAwait(true))
+            {
+                row.HydrationBlocked = true;
+                row.Status = "Online-only";
+                continue;
+            }
+
+            await Task.Run(() =>
+            {
+                if (_tags.TryRead(row.Path, out var media))
+                {
+                    var merged = FilenamePattern.WithProject(
+                        (_original.GetValueOrDefault(row.Path) ?? new MediaTagFields()).Merge(media),
+                        _git.FindRepoRoot(row.Path));
+                    _original[row.Path] = merged;
+                    row.Load(merged, Pattern);
+                    row.Status = null;
+                }
+            }).ConfigureAwait(true);
+        }
+
+        RefreshStatus();
+    }
+
+    private void RefreshStatus()
+    {
+        CanQueueTags = Rows.Any(r => r.TagsDirty && !r.HydrationBlocked);
+        CanQueueRename = Rows.Any(r => !r.NameUnchanged && !r.HydrationBlocked);
+        var blocked = Rows.Count(r => r.HydrationBlocked);
+        Status = blocked > 0
+            ? $"{Rows.Count} items · {blocked} online-only skipped"
+            : $"{Rows.Count} items";
+    }
+}
+
+public sealed partial class TagRowViewModel : ObservableObject
+{
+    private MediaTagFields _baseline = new();
+    private DateTimeOffset? _taken;
+
+    [ObservableProperty] private string _path = "";
+    [ObservableProperty] private string _fileName = "";
+    [ObservableProperty] private bool _isDirectory;
+    [ObservableProperty] private string _artist = "";
+    [ObservableProperty] private string _title = "";
+    [ObservableProperty] private string _album = "";
+    [ObservableProperty] private string _track = "";
+    [ObservableProperty] private string _year = "";
+    [ObservableProperty] private string _genre = "";
+    [ObservableProperty] private string _proposedName = "";
+    [ObservableProperty] private string? _status;
+    [ObservableProperty] private bool _hydrationBlocked;
+
+    public bool TagsDirty => !SameWritable(_baseline, ToFields());
+    public bool NameUnchanged => string.Equals(ProposedName, FileName, StringComparison.OrdinalIgnoreCase);
+
+    public static TagRowViewModel From(RenameSubject subject, MediaTagFields fields, string pattern)
+    {
+        var row = new TagRowViewModel
+        {
+            Path = subject.FullPath,
+            FileName = subject.Name,
+            IsDirectory = subject.IsDirectory
+        };
+        row.Load(fields, pattern);
+        return row;
+    }
+
+    public void Load(MediaTagFields fields, string pattern)
+    {
+        _baseline = fields;
+        _taken = fields.Taken;
+        Artist = fields.Artist ?? "";
+        Title = fields.Title ?? "";
+        Album = fields.Album ?? "";
+        Track = fields.Track?.ToString() ?? "";
+        Year = fields.Year?.ToString() ?? "";
+        Genre = fields.Genre ?? "";
+        RefreshProposedName(pattern);
+    }
+
+    protected override void OnPropertyChanged(System.ComponentModel.PropertyChangedEventArgs e)
+    {
+        base.OnPropertyChanged(e);
+        Changed?.Invoke(this, EventArgs.Empty);
+    }
+
+    public event EventHandler? Changed;
+
+    public void ApplyParsed(MediaTagFields parsed)
+    {
+        Artist = parsed.Artist ?? Artist;
+        Title = parsed.Title ?? Title;
+        Album = parsed.Album ?? Album;
+        if (parsed.Track is int track)
+        {
+            Track = track.ToString();
+        }
+
+        if (parsed.Year is int year)
+        {
+            Year = year.ToString();
+        }
+
+        Genre = parsed.Genre ?? Genre;
+        if (parsed.Taken is DateTimeOffset taken)
+        {
+            _taken = taken;
+        }
+    }
+
+    public void RefreshProposedName(string pattern)
+    {
+        var (stem, extension) = WindowsFileNames.Split(FileName);
+        var tags = ToFields() with { Stem = stem, Extension = extension };
+        var next = FilenamePattern.Expand(string.IsNullOrWhiteSpace(pattern) ? "{Name}" : pattern, tags);
+        ProposedName = WindowsFileNames.Join(next, IsDirectory ? "" : extension);
+    }
+
+    public MediaTagFields ToFields()
+        => _baseline with
+        {
+            Artist = Artist,
+            Title = Title,
+            Album = Album,
+            Track = int.TryParse(Track, out var track) ? track : null,
+            Year = int.TryParse(Year, out var year) ? year : null,
+            Genre = Genre,
+            Taken = _taken,
+            Stem = WindowsFileNames.Split(FileName).Stem,
+            Extension = WindowsFileNames.Split(FileName).Extension
+        };
+
+    private static bool SameWritable(MediaTagFields left, MediaTagFields right)
+        => string.Equals(left.Artist ?? "", right.Artist ?? "", StringComparison.Ordinal)
+           && string.Equals(left.Title ?? "", right.Title ?? "", StringComparison.Ordinal)
+           && string.Equals(left.Album ?? "", right.Album ?? "", StringComparison.Ordinal)
+           && left.Track == right.Track
+           && left.Year == right.Year
+           && left.Taken == right.Taken
+           && string.Equals(left.Genre ?? "", right.Genre ?? "", StringComparison.Ordinal);
+}

src/Explorer.Presentation/ViewModels/TransferQueueViewModel.cs

@@ -55,7 +55,7 @@ public sealed partial class TransferJobViewModel : ObservableObject
         HasProgress = job.BytesTotal is > 0 && job.Status is TransferStatus.Running or TransferStatus.Paused or TransferStatus.Cancelling;
         CanPause = job.Status is TransferStatus.Queued or TransferStatus.Running;
         CanResume = job.Status == TransferStatus.Paused;
-        CanRetry = job.Status == TransferStatus.Failed;
+        CanRetry = job.Status is TransferStatus.Failed or TransferStatus.Waiting;
         CanRemove = job.Status is not TransferStatus.Cancelling;
         CanMoveUp = canMoveUp && job.Status is not TransferStatus.Running and not TransferStatus.Cancelling;
         CanMoveDown = canMoveDown && job.Status is not TransferStatus.Running and not TransferStatus.Cancelling;
@@ -89,6 +89,11 @@ public sealed partial class TransferJobViewModel : ObservableObject
             return FileName(job.DestinationPath);
         }
 
+        if (job.Op == TransferOp.WriteTags)
+        {
+            return FileName(job.SourcePath);
+        }
+
         return FileName(job.SourcePath);
     }
 
@@ -103,6 +108,7 @@ public sealed partial class TransferJobViewModel : ObservableObject
             TransferOp.AddToArchive => $"Add to {FileName(job.DestinationPath)}",
             TransferOp.VerifyArchive => "Verify archive",
             TransferOp.Convert => $"Convert to {FileName(job.DestinationPath)}",
+            TransferOp.WriteTags => "Write tags",
             TransferOp.EmptyRecycleBin => "Empty Recycle Bin",
             TransferOp.Delete => string.Equals(job.DestinationPath, "permanent", StringComparison.Ordinal)
                 ? "Delete permanently"
@@ -186,6 +192,7 @@ public sealed partial class TransferJobViewModel : ObservableObject
             TransferOp.AddToArchive => "Adding",
             TransferOp.VerifyArchive => "Verifying",
             TransferOp.Convert => "Converting",
+            TransferOp.WriteTags => "Writing tags",
             TransferOp.EmptyRecycleBin => "Emptying Recycle Bin",
             _ => "Working"
         };
@@ -196,7 +203,7 @@ public sealed partial class TransferQueueViewModel : ObservableObject
     private readonly ITransferHost _queue;
     private readonly UiPreferencesStore _preferences;
     private readonly SynchronizationContext? _ui = SynchronizationContext.Current;
-    private readonly Dictionary<long, (long Bytes, DateTime Utc)> _speed = [];
+    private readonly Dictionary<long, (long Bytes, DateTime Utc, string? Text)> _speed = [];
 
     private bool _holdCollapsed;
 
@@ -426,14 +433,17 @@ public sealed partial class TransferQueueViewModel : ObservableObject
             if (seconds >= 0.4 && job.BytesDone >= prev.Bytes)
             {
                 var rate = (job.BytesDone - prev.Bytes) / seconds;
-                _speed[job.Id] = (job.BytesDone, now);
+                var text = rate > 0
-                return rate > 0 ? $"{TransferJobViewModel.FormatBytes((long)rate)}/s" : null;
+                    ? $"{TransferJobViewModel.FormatBytes((long)rate)}/s"
+                    : prev.Text;
+                _speed[job.Id] = (job.BytesDone, now, text);
+                return text;
             }
 
-            return null;
+            return prev.Text;
         }
 
-        _speed[job.Id] = (job.BytesDone, now);
+        _speed[job.Id] = (job.BytesDone, now, null);
         return null;
     }
 
@@ -483,6 +493,7 @@ public sealed partial class TransferQueueViewModel : ObservableObject
             TransferOp.AddToArchive => "Adding",
             TransferOp.VerifyArchive => "Verifying",
             TransferOp.Convert => "Converting",
+            TransferOp.WriteTags => "Writing tags",
             TransferOp.EmptyRecycleBin => "Emptying Recycle Bin",
             _ => op.ToString()
         };

src/Explorer.Windows/Explorer.Windows.csproj

@@ -6,6 +6,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.0" />
+    <PackageReference Include="TagLibSharp" Version="2.3.0" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Explorer.Application\Explorer.Application.csproj" />

src/Explorer.Windows/NativeMethods.cs

@@ -224,4 +224,35 @@ internal static partial class NativeMethods
     [LibraryImport("kernel32.dll")]
     [return: MarshalAs(UnmanagedType.Bool)]
     public static partial bool GetSystemPowerStatus(out SystemPowerStatus lpSystemPowerStatus);
+
+    public const int ResourceTypeDisk = 1;
+    public const int ConnectTemporary = 4;
+    public const int ErrorSuccess = 0;
+    public const int ErrorAlreadyAssigned = 85;
+    public const int ErrorDeviceAlreadyRemembered = 1202;
+    public const int ErrorConnectionUnavailable = 1201;
+    public const int ErrorNotConnected = 2250;
+    public const int ErrorSessionCredentialConflict = 1219;
+
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+    public struct NetResource
+    {
+        public int dwScope;
+        public int dwType;
+        public int dwDisplayType;
+        public int dwUsage;
+        public string? lpLocalName;
+        public string? lpRemoteName;
+        public string? lpComment;
+        public string? lpProvider;
+    }
+
+    [DllImport("mpr.dll", CharSet = CharSet.Unicode)]
+    public static extern int WNetAddConnection2(ref NetResource netResource, string? password, string? username, int flags);
+
+    [DllImport("mpr.dll", CharSet = CharSet.Unicode)]
+    public static extern int WNetGetConnection(string localName, StringBuilder remoteName, ref int length);
+
+    [DllImport("mpr.dll", CharSet = CharSet.Unicode)]
+    public static extern int WNetRestoreConnectionW(nint hwnd, string? localDrive, [MarshalAs(UnmanagedType.Bool)] bool force);
 }

src/Explorer.Windows/TagLibMediaTagService.cs

@@ -0,0 +1,172 @@
+using Explorer.Application;
+using Explorer.Domain;
+using TagFile = TagLib.File;
+
+namespace Explorer.Windows;
+
+public sealed class TagLibMediaTagService : IMediaTagService
+{
+    public bool TryRead(string path, out MediaTagFields fields)
+    {
+        fields = FilenamePattern.FromFile(path, Directory.Exists(PathRules.ToExtended(path)));
+        var disk = PathRules.ToExtended(path);
+        if (!File.Exists(disk))
+        {
+            return false;
+        }
+
+        try
+        {
+            using var file = TagFile.Create(PathRules.FromExtended(path));
+            var tag = file.Tag;
+            var props = file.Properties;
+            fields = fields with
+            {
+                Artist = First(tag.JoinedPerformers, tag.FirstPerformer) ?? Creator(file),
+                Title = EmptyToNull(tag.Title) ?? ImageTitle(file),
+                Album = EmptyToNull(tag.Album),
+                Track = tag.Track == 0 ? null : (int)tag.Track,
+                TrackCount = tag.TrackCount == 0 ? null : (int)tag.TrackCount,
+                Year = tag.Year == 0 ? TakenYear(file) : (int)tag.Year,
+                Genre = First(tag.JoinedGenres, tag.FirstGenre),
+                Comment = EmptyToNull(tag.Comment) ?? ImageComment(file),
+                Width = Dimension(props.PhotoWidth, props.VideoWidth),
+                Height = Dimension(props.PhotoHeight, props.VideoHeight),
+                Taken = ImageTaken(file)
+            };
+            return true;
+        }
+        catch (Exception)
+        {
+            return false;
+        }
+    }
+
+    public bool TryWrite(string path, MediaTagFields fields, out string? error)
+    {
+        error = null;
+        var disk = PathRules.FromExtended(path);
+        if (!File.Exists(PathRules.ToExtended(path)))
+        {
+            error = "File not found.";
+            return false;
+        }
+
+        try
+        {
+            using var file = TagFile.Create(disk);
+            if (fields.Artist is not null)
+            {
+                file.Tag.Performers = string.IsNullOrWhiteSpace(fields.Artist) ? [] : [fields.Artist];
+            }
+
+            if (fields.Title is not null)
+            {
+                file.Tag.Title = fields.Title;
+            }
+
+            if (fields.Album is not null)
+            {
+                file.Tag.Album = fields.Album;
+            }
+
+            if (fields.Genre is not null)
+            {
+                file.Tag.Genres = string.IsNullOrWhiteSpace(fields.Genre) ? [] : [fields.Genre];
+            }
+
+            if (fields.Comment is not null)
+            {
+                file.Tag.Comment = fields.Comment;
+            }
+
+            if (fields.Track is not null)
+            {
+                file.Tag.Track = (uint)Math.Max(0, fields.Track.Value);
+            }
+
+            if (fields.TrackCount is not null)
+            {
+                file.Tag.TrackCount = (uint)Math.Max(0, fields.TrackCount.Value);
+            }
+
+            if (fields.Year is not null)
+            {
+                file.Tag.Year = (uint)Math.Max(0, fields.Year.Value);
+            }
+
+            WriteImage(file, fields);
+            file.Save();
+            return true;
+        }
+        catch (Exception ex)
+        {
+            error = ex.Message;
+            return false;
+        }
+    }
+
+    private static string? First(string joined, string first)
+        => EmptyToNull(joined) ?? EmptyToNull(first);
+
+    private static string? EmptyToNull(string? value)
+        => string.IsNullOrWhiteSpace(value) ? null : value.Trim();
+
+    private static int? Dimension(int photo, int video)
+        => photo > 0 ? photo : video > 0 ? video : null;
+
+    private static DateTimeOffset? ImageTaken(TagFile file)
+    {
+        if (file is TagLib.Image.File image && image.ImageTag.DateTime is DateTime taken)
+        {
+            return taken.Kind == DateTimeKind.Unspecified
+                ? new DateTimeOffset(DateTime.SpecifyKind(taken, DateTimeKind.Local))
+                : new DateTimeOffset(taken);
+        }
+
+        return null;
+    }
+
+    private static int? TakenYear(TagFile file) => ImageTaken(file)?.Year;
+
+    private static string? ImageTitle(TagFile file)
+        => file is TagLib.Image.File image ? EmptyToNull(image.ImageTag.Title) : null;
+
+    private static string? ImageComment(TagFile file)
+        => file is TagLib.Image.File image ? EmptyToNull(image.ImageTag.Comment) : null;
+
+    private static string? Creator(TagFile file)
+        => file is TagLib.Image.File image ? EmptyToNull(image.ImageTag.Creator) : null;
+
+    private static void WriteImage(TagFile file, MediaTagFields fields)
+    {
+        if (file is not TagLib.Image.File image)
+        {
+            return;
+        }
+
+        if (fields.Title is not null)
+        {
+            image.ImageTag.Title = fields.Title;
+        }
+
+        if (fields.Comment is not null)
+        {
+            image.ImageTag.Comment = fields.Comment;
+        }
+
+        if (fields.Artist is not null)
+        {
+            image.ImageTag.Creator = fields.Artist;
+        }
+
+        if (fields.Taken is DateTimeOffset taken)
+        {
+            image.ImageTag.DateTime = taken.LocalDateTime;
+        }
+        else if (fields.Year is int year and > 0)
+        {
+            image.ImageTag.DateTime = new DateTime(year, 1, 1);
+        }
+    }
+}

src/Explorer.Windows/WindowsVolumeService.cs

@@ -228,6 +228,84 @@ public sealed class WindowsVolumeService : IVolumeService
         }
     }
 
+    public bool TryEnsureReachable(string path)
+    {
+        if (string.IsNullOrWhiteSpace(path) || IsPathReachable(path))
+        {
+            return true;
+        }
+
+        try
+        {
+            BoundedWait.Try(
+                () =>
+                {
+                    TryReconnect(path);
+                    return true;
+                },
+                TimeSpan.FromSeconds(3));
+            _onlineCache = null;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogDebug(ex, "Reconnect failed for {Path}", path);
+        }
+
+        return IsPathReachable(path);
+    }
+
+    private static void TryReconnect(string path)
+    {
+        if (PathRules.IsUnc(path))
+        {
+            ConnectShare(PathRules.CanonicalUncRoot(path), localName: null);
+            return;
+        }
+
+        var root = Path.GetPathRoot(PathRules.FromExtended(path));
+        if (string.IsNullOrWhiteSpace(root))
+        {
+            return;
+        }
+
+        var drive = root.TrimEnd('\\');
+        if (drive.Length != 2 || drive[1] != ':')
+        {
+            return;
+        }
+
+        NativeMethods.WNetRestoreConnectionW(0, drive, false);
+        var unc = MappedUnc(drive);
+        if (!string.IsNullOrWhiteSpace(unc))
+        {
+            ConnectShare(unc, drive);
+        }
+    }
+
+    private static void ConnectShare(string remote, string? localName)
+    {
+        var resource = new NativeMethods.NetResource
+        {
+            dwType = NativeMethods.ResourceTypeDisk,
+            lpRemoteName = remote,
+            lpLocalName = localName
+        };
+        var rc = NativeMethods.WNetAddConnection2(ref resource, null, null, NativeMethods.ConnectTemporary);
+        _ = rc is NativeMethods.ErrorSuccess
+            or NativeMethods.ErrorAlreadyAssigned
+            or NativeMethods.ErrorDeviceAlreadyRemembered
+            or NativeMethods.ErrorSessionCredentialConflict;
+    }
+
+    private static string? MappedUnc(string drive)
+    {
+        var buffer = new System.Text.StringBuilder(NativeMethods.MaxPath);
+        var length = buffer.Capacity;
+        return NativeMethods.WNetGetConnection(drive, buffer, ref length) == NativeMethods.ErrorSuccess
+            ? buffer.ToString()
+            : null;
+    }
+
     private static bool IsRemote(string path)
     {
         if (PathRules.IsUnc(path))

tests/Explorer.Application.Tests/DestinationPatternTests.cs

@@ -0,0 +1,161 @@
+using Explorer.Application;
+using Explorer.Domain;
+
+namespace Explorer.Application.Tests;
+
+public class DestinationPatternTests
+{
+    private static RenameSubject File(string path, bool directory = false)
+        => new(path, PathRules.GetFileName(path), directory);
+
+    [Fact]
+    public void Plex_style_folder_gets_the_file_inside()
+    {
+        Assert.True(DestinationPattern.TryResolve(
+            @"\\10.0.0.31\media\movies\%filename_noext%",
+            File(@"D:\downloads\Inception.mkv"),
+            out var dest,
+            out var error));
+        Assert.Null(error);
+        Assert.Equal(@"\\10.0.0.31\media\movies\Inception\Inception.mkv", dest);
+    }
+
+    [Fact]
+    public void Explicit_filename_token_is_the_full_path()
+    {
+        Assert.True(DestinationPattern.TryResolve(
+            @"\\10.0.0.31\media\movies\%filename_noext%\%filename%",
+            File(@"D:\downloads\Inception.mkv"),
+            out var dest,
+            out _));
+        Assert.Equal(@"\\10.0.0.31\media\movies\Inception\Inception.mkv", dest);
+    }
+
+    [Fact]
+    public void Folder_moves_to_the_expanded_directory()
+    {
+        Assert.True(DestinationPattern.TryResolve(
+            @"\\10.0.0.31\media\movies\%filename_noext%",
+            File(@"D:\downloads\Inception", directory: true),
+            out var dest,
+            out _));
+        Assert.Equal(@"\\10.0.0.31\media\movies\Inception", dest);
+    }
+
+    [Fact]
+    public void Source_drive_year_and_parent_expand()
+    {
+        var fields = new MoveToFields(
+            "clip.mp4",
+            "clip",
+            "mp4",
+            "Vacation",
+            "E:",
+            new DateTimeOffset(new DateTime(2024, 8, 26, 0, 0, 0, DateTimeKind.Local)),
+            null);
+        Assert.True(DestinationPattern.TryExpand(
+            @"%source_drive%\sorted\%year%\%month%\%parent%",
+            fields,
+            out var expanded,
+            out _));
+        Assert.Equal(@"E:\sorted\2024\08\Vacation", expanded);
+    }
+
+    [Fact]
+    public void Brace_tokens_match_percent_tokens()
+    {
+        Assert.True(DestinationPattern.TryResolve(
+            @"{source_drive}\Media\{filename_noext}\{filename}",
+            File(@"C:\tmp\Photo.jpg"),
+            out var dest,
+            out _));
+        Assert.Equal(@"C:\Media\Photo\Photo.jpg", dest);
+    }
+
+    [Fact]
+    public void Relative_paths_are_rejected()
+    {
+        Assert.False(DestinationPattern.TryResolve(
+            @"%filename_noext%\%filename%",
+            File(@"C:\tmp\a.mkv"),
+            out _,
+            out var error));
+        Assert.Contains("full destination", error, StringComparison.OrdinalIgnoreCase);
+    }
+
+    [Fact]
+    public void Unknown_placeholder_is_an_error()
+    {
+        Assert.False(DestinationPattern.TryExpand(
+            @"C:\out\%nope%",
+            new MoveToFields("a.txt", "a", "txt", "tmp", "C:", null, null),
+            out _,
+            out var error));
+        Assert.Contains("%nope%", error, StringComparison.OrdinalIgnoreCase);
+    }
+}
+
+public class DestinationPatternsTests
+{
+    [Fact]
+    public void Combine_puts_saved_ahead_of_built_in()
+    {
+        var combined = DestinationPatterns.Combine([@"\\10.0.0.31\media\movies\%filename_noext%"]);
+        Assert.Equal(@"\\10.0.0.31\media\movies\%filename_noext%", combined[0]);
+        Assert.Contains(DestinationPatterns.BuiltIn[0], combined);
+    }
+
+    [Fact]
+    public void Normalize_does_not_persist_built_in_examples()
+    {
+        Assert.Empty(DestinationPatterns.Normalize([@"\\host\share\movies\%filename_noext%"]));
+    }
+}
+
+public class MoveToPlannerTests
+{
+    [Fact]
+    public void Queues_a_move_into_the_named_folder()
+    {
+        var plan = new MoveToPlanner().Build(
+            [new RenameSubject(@"D:\downloads\Inception.mkv", "Inception.mkv", false)],
+            @"\\10.0.0.31\media\movies\%filename_noext%");
+        Assert.True(plan.CanEnqueue);
+        Assert.Equal(TransferOp.Move, plan.Operations[0].Op);
+        Assert.Equal(@"\\10.0.0.31\media\movies\Inception\Inception.mkv", plan.Operations[0].DestinationPath);
+    }
+
+    [Fact]
+    public void Collision_is_an_error()
+    {
+        var plan = new MoveToPlanner().Build(
+            [
+                new RenameSubject(@"D:\a\Inception.mkv", "Inception.mkv", false),
+                new RenameSubject(@"D:\b\Inception.mkv", "Inception.mkv", false)
+            ],
+            @"\\server\media\movies\%filename_noext%");
+        Assert.False(plan.CanEnqueue);
+        Assert.Contains(plan.Issues, i => i.Message.Contains("already exists", StringComparison.OrdinalIgnoreCase));
+    }
+
+    [Fact]
+    public void Online_only_is_an_error()
+    {
+        var plan = new MoveToPlanner().Build(
+            [new RenameSubject(@"C:\cloud\clip.mp4", "clip.mp4", false)],
+            @"D:\out\%filename_noext%",
+            wouldHydrate: _ => true);
+        Assert.False(plan.CanEnqueue);
+        Assert.Contains(plan.Issues, i => i.Message.Contains("online-only", StringComparison.OrdinalIgnoreCase));
+    }
+
+    [Fact]
+    public void Example_host_is_rejected()
+    {
+        var plan = new MoveToPlanner().Build(
+            [new RenameSubject(@"D:\downloads\Inception.mkv", "Inception.mkv", false)],
+            @"\\host\share\movies\%filename_noext%");
+        Assert.False(plan.CanEnqueue);
+        Assert.Contains(plan.Issues, i => i.Message.Contains("Browse", StringComparison.OrdinalIgnoreCase));
+    }
+}

tests/Explorer.Application.Tests/FilenamePatternTests.cs

@@ -0,0 +1,106 @@
+using Explorer.Application;
+using Explorer.Domain;
+
+namespace Explorer.Application.Tests;
+
+public class FilenamePatternTests
+{
+    [Fact]
+    public void Formats_artist_title_and_dates()
+    {
+        var tags = new MediaTagFields
+        {
+            Artist = "Pink Floyd",
+            Title = "Comfortably Numb",
+            Track = 6,
+            Created = new DateTimeOffset(new DateTime(2024, 8, 26, 12, 0, 0, DateTimeKind.Local)),
+            Stem = "clip",
+            Extension = "mp3",
+            Width = 1920
+        };
+        Assert.Equal(
+            "Pink Floyd - Comfortably Numb",
+            FilenamePattern.Expand("{Artist} - {Title}", tags));
+        Assert.Equal("06", FilenamePattern.Expand("{Track:00}", tags));
+        Assert.Equal("2024-08-26", FilenamePattern.Expand("{CreatedDate}", tags));
+        Assert.Equal("1920_clip", FilenamePattern.Expand("{Width}_{Name}", tags));
+    }
+
+    [Fact]
+    public void Parses_filename_into_tags()
+    {
+        Assert.True(FilenamePattern.TryParse(
+            "{Artist} - {Title}",
+            "AC/DC - Hells Bells",
+            out var tags,
+            out _));
+        Assert.Equal("AC/DC", tags.Artist);
+        Assert.Equal("Hells Bells", tags.Title);
+    }
+
+    [Fact]
+    public void Parse_fails_when_the_name_does_not_match()
+    {
+        Assert.False(FilenamePattern.TryParse("{Artist} - {Title}", "JustOneName", out _, out var error));
+        Assert.Contains("match", error, StringComparison.OrdinalIgnoreCase);
+    }
+
+    [Fact]
+    public void Unknown_tokens_stay_in_the_name()
+    {
+        Assert.Equal("{Foo}_a", FilenamePattern.Expand("{Foo}_{Name}", new MediaTagFields { Stem = "a" }));
+    }
+
+    [Fact]
+    public void Sanitizes_illegal_filename_characters_from_tags()
+    {
+        var name = FilenamePattern.Expand("{Title}", new MediaTagFields { Title = @"a:b/c" });
+        Assert.Equal("a-b-c", name);
+    }
+
+    [Fact]
+    public void Taken_date_and_project_expand()
+    {
+        var tags = new MediaTagFields
+        {
+            Taken = new DateTimeOffset(new DateTime(2024, 8, 26, 15, 30, 0, DateTimeKind.Local)),
+            Created = new DateTimeOffset(new DateTime(2020, 1, 1, 0, 0, 0, DateTimeKind.Local)),
+            Stem = "DSC_001",
+            Project = "Explorer",
+            Parent = "photos"
+        };
+        Assert.Equal("20240826_DSC_001", FilenamePattern.Expand("{TakenDate:yyyyMMdd}_{Name}", tags));
+        Assert.Equal("2024-08-26", FilenamePattern.Expand("{CreatedDate}", tags));
+        Assert.Equal("Explorer_DSC_001", FilenamePattern.Expand("{Project}_{Name}", tags));
+    }
+
+    [Fact]
+    public void Parses_taken_date_from_filename()
+    {
+        Assert.True(FilenamePattern.TryParse(
+            "{TakenDate:yyyyMMdd}_{Name}",
+            "20240826_DSC_001",
+            out var tags,
+            out _));
+        Assert.Equal(2024, tags.Taken?.Year);
+        Assert.Equal(8, tags.Taken?.Month);
+        Assert.Equal(26, tags.Taken?.Day);
+        Assert.Equal(2024, tags.Year);
+    }
+
+    [Fact]
+    public void WithProject_uses_repo_folder_then_parent()
+    {
+        var fields = new MediaTagFields { Parent = "photos" };
+        Assert.Equal("Explorer", FilenamePattern.WithProject(fields, @"C:\src\Explorer").Project);
+        Assert.Equal("photos", FilenamePattern.WithProject(fields, null).Project);
+    }
+
+    [Fact]
+    public void TakenDate_is_media_content_CreatedDate_and_Project_are_not()
+    {
+        Assert.True(FilenamePattern.UsesMediaContent("{TakenDate}_{Name}"));
+        Assert.False(FilenamePattern.UsesMediaContent("{CreatedDate}_{Name}"));
+        Assert.False(FilenamePattern.UsesMediaContent("{Project}_{Name}"));
+    }
+}

tests/Explorer.Application.Tests/FilenamePatternsTests.cs

@@ -0,0 +1,23 @@
+using Explorer.Application;
+
+namespace Explorer.Application.Tests;
+
+public class FilenamePatternsTests
+{
+    [Fact]
+    public void Combine_lists_built_in_then_saved()
+    {
+        var combined = FilenamePatterns.Combine(["{Album} - {Title}", "{Artist} - {Title}"]);
+        Assert.Equal(FilenamePatterns.BuiltIn[0], combined[0]);
+        Assert.Contains("{Album} - {Title}", combined);
+        Assert.Equal(1, combined.Count(p => p.Equals("{Artist} - {Title}", StringComparison.OrdinalIgnoreCase)));
+    }
+
+    [Fact]
+    public void Add_puts_the_new_pattern_first_and_drops_built_ins_from_saved()
+    {
+        var saved = FilenamePatterns.Add(null, "{Album} - {Title}");
+        Assert.Equal(["{Album} - {Title}"], saved);
+        Assert.Empty(FilenamePatterns.Normalize(["{Artist} - {Title}", "  "]));
+    }
+}

tests/Explorer.Application.Tests/RenamePlannerTests.cs

@@ -52,9 +52,59 @@ public class RenamePlannerTests
             [File(@"C:\a\clip.mp4")],
             new RenameRuleSet { Prefix = "Clip_{Counter}_", UseCounter = true, CounterPadding = 3 });
         Assert.Equal("Clip_001_clip.mp4", plan.Preview[0].NewName);
-        Assert.Contains("{Width}", new RenamePlanner().Build(
+    }
+
+    [Fact]
+    public void Media_placeholders_use_supplied_tags()
+    {
+        var plan = new RenamePlanner().Build(
             [File(@"C:\a\clip.mp4")],
-            new RenameRuleSet { Prefix = "{Width}_" }).Preview[0].NewName);
+            new RenameRuleSet { Prefix = "{Width}_", NamePattern = "{Artist} - {Title}" },
+            tagsByPath: new Dictionary<string, MediaTagFields>(StringComparer.OrdinalIgnoreCase)
+            {
+                [@"C:\a\clip.mp4"] = new()
+                {
+                    Width = 1920,
+                    Artist = "Queen",
+                    Title = "Bohemian Rhapsody",
+                    Stem = "clip",
+                    Extension = "mp4"
+                }
+            });
+        Assert.Equal("1920_Queen - Bohemian Rhapsody.mp4", plan.Preview[0].NewName);
+    }
+
+    [Fact]
+    public void Online_only_media_placeholder_is_an_error()
+    {
+        var plan = new RenamePlanner().Build(
+            [File(@"C:\cloud\clip.mp4")],
+            new RenameRuleSet { Prefix = "{Artist}_" },
+            tagsByPath: new Dictionary<string, MediaTagFields>(StringComparer.OrdinalIgnoreCase)
+            {
+                [@"C:\cloud\clip.mp4"] = new() { HydrationBlocked = true, Stem = "clip", Extension = "mp4" }
+            });
+        Assert.False(plan.CanEnqueue);
+        Assert.Contains(plan.Issues, i => i.Message.Contains("online-only", StringComparison.OrdinalIgnoreCase));
+    }
+
+    [Fact]
+    public void Project_and_taken_placeholders_expand()
+    {
+        var plan = new RenamePlanner().Build(
+            [File(@"C:\src\Explorer\photos\DSC_001.jpg")],
+            new RenameRuleSet { NamePattern = "{Project}_{TakenDate:yyyyMMdd}_{Name}" },
+            tagsByPath: new Dictionary<string, MediaTagFields>(StringComparer.OrdinalIgnoreCase)
+            {
+                [@"C:\src\Explorer\photos\DSC_001.jpg"] = new()
+                {
+                    Project = "Explorer",
+                    Taken = new DateTimeOffset(new DateTime(2024, 8, 26, 0, 0, 0, DateTimeKind.Local)),
+                    Stem = "DSC_001",
+                    Extension = "jpg"
+                }
+            });
+        Assert.Equal("Explorer_20240826_DSC_001.jpg", plan.Preview[0].NewName);
     }
 
     [Fact]

tests/Explorer.Application.Tests/TagRenamePlannerTests.cs

@@ -0,0 +1,36 @@
+using Explorer.Application;
+using Explorer.Domain;
+
+namespace Explorer.Application.Tests;
+
+public class TagRenamePlannerTests
+{
+    [Fact]
+    public void Filename_to_tags_queues_a_write()
+    {
+        var plan = new TagRenamePlanner().BuildWrite(
+            [new RenameSubject(@"C:\music\Pink Floyd - Time.mp3", "Pink Floyd - Time.mp3", false)],
+            "{Artist} - {Title}",
+            new Dictionary<string, MediaTagFields>(StringComparer.OrdinalIgnoreCase));
+        Assert.True(plan.CanEnqueue);
+        Assert.Equal(TransferOp.WriteTags, plan.Operations[0].Op);
+        var tags = MediaTagFields.FromPayload(plan.Operations[0].DestinationPath);
+        Assert.Equal("Pink Floyd", tags.Artist);
+        Assert.Equal("Time", tags.Title);
+    }
+
+    [Fact]
+    public void Unchanged_tags_are_not_queued()
+    {
+        var existing = new MediaTagFields { Artist = "Pink Floyd", Title = "Time" };
+        var plan = new TagRenamePlanner().BuildWrite(
+            [new RenameSubject(@"C:\music\Pink Floyd - Time.mp3", "Pink Floyd - Time.mp3", false)],
+            "{Artist} - {Title}",
+            new Dictionary<string, MediaTagFields>(StringComparer.OrdinalIgnoreCase)
+            {
+                [@"C:\music\Pink Floyd - Time.mp3"] = existing
+            });
+        Assert.False(plan.CanEnqueue);
+        Assert.True(plan.TagPreview[0].TagsUnchanged);
+    }
+}

tests/Explorer.Application.Tests/UiPreferencesStoreTests.cs

@@ -87,6 +87,8 @@ public class UiPreferencesStoreTests
         Assert.Null(prefs.FfmpegPath);
         Assert.True(prefs.SessionTabs is null || prefs.SessionTabs.Count == 0);
         Assert.True(prefs.FavoriteFolders is null || prefs.FavoriteFolders.Count == 0);
+        Assert.True(prefs.NamePatterns is null || prefs.NamePatterns.Count == 0);
+        Assert.True(prefs.MoveToPatterns is null || prefs.MoveToPatterns.Count == 0);
     }
 
     [Fact]
@@ -167,6 +169,31 @@ public class UiPreferencesStoreTests
         Assert.Equal(@"C:\Users\Dominique\Documents", prefs.FavoriteFolders[1]);
     }
 
+    [Fact]
+    public void Parse_reads_name_patterns_and_skips_built_ins()
+    {
+        var prefs = UiPreferencesStore.Parse(
+        [
+            "name-pattern={Album} - {Title}",
+            "name-pattern={Album} - {Title}",
+            "name-pattern={Artist} - {Title}",
+            "name-pattern="
+        ]);
+        Assert.NotNull(prefs.NamePatterns);
+        Assert.Equal(["{Album} - {Title}"], prefs.NamePatterns);
+    }
+
+    [Fact]
+    public void Parse_reads_move_to_patterns()
+    {
+        var prefs = UiPreferencesStore.Parse(
+        [
+            @"move-to=\\10.0.0.31\media\movies\%filename_noext%",
+            @"move-to=\\10.0.0.31\media\movies\%filename_noext%"
+        ]);
+        Assert.Equal([@"\\10.0.0.31\media\movies\%filename_noext%"], prefs.MoveToPatterns);
+    }
+
     [Fact]
     public void Session_tab_roundtrip_escapes_semicolons_in_paths()
     {
@@ -199,7 +226,9 @@ public class UiPreferencesStoreTests
                     new SessionTabState(@"C:\Temp", @"D:\", true, 0.6, true)
                 ],
                 SessionActiveTab: 0,
-                PreferFavoritesInTree: true));
+                PreferFavoritesInTree: true,
+                NamePatterns: ["{Album} - {Title}"],
+                MoveToPatterns: [@"\\10.0.0.31\media\movies\%filename_noext%"]));
             var loaded = store.Load();
             Assert.Equal("Light", loaded.Theme);
             Assert.True(loaded.GroupNetworkPlaces);
@@ -218,6 +247,8 @@ public class UiPreferencesStoreTests
             Assert.Equal(720, loaded.WindowHeight);
             Assert.Equal(300, loaded.TreeWidth);
             Assert.Equal([@"D:\Photos", @"C:\Users\Dominique\Documents"], loaded.FavoriteFolders);
+            Assert.Equal(["{Album} - {Title}"], loaded.NamePatterns);
+            Assert.Equal([@"\\10.0.0.31\media\movies\%filename_noext%"], loaded.MoveToPatterns);
             Assert.NotNull(loaded.SessionTabs);
             var tab = Assert.Single(loaded.SessionTabs);
             Assert.Equal(@"C:\Temp", tab.LeftPath);

tests/Explorer.Domain.Tests/DomainTests.cs

@@ -549,3 +549,17 @@ public class GitStatusBadgeTests
         Assert.Equal("merging", status.OperationLabel);
     }
 }
+
+public class MediaTagFieldsTests
+{
+    [Fact]
+    public void Payload_roundtrips_taken_date()
+    {
+        var taken = new DateTimeOffset(2024, 8, 26, 15, 30, 0, TimeSpan.FromHours(2));
+        var payload = new MediaTagFields { Title = "Sunset", Taken = taken }.Payload();
+        var parsed = MediaTagFields.FromPayload(payload);
+        Assert.Equal("Sunset", parsed.Title);
+        Assert.Equal(taken, parsed.Taken);
+        Assert.True(parsed.HasWritableTags);
+    }
+}

tests/Explorer.FileOperations.Tests/TransferQueueTests.cs

@@ -214,6 +214,22 @@ public class TransferQueueTests
         await ctx.Queue.StopAsync(CancellationToken.None);
     }
 
+    [Fact]
+    public async Task Retry_wakes_a_waiting_job_when_the_destination_is_back()
+    {
+        await using var ctx = await Harness.CreateAsync();
+        ctx.Volumes.Reachable = false;
+        await ctx.Queue.StartAsync(CancellationToken.None);
+        await ctx.Queue.EnqueueCopyAsync([ctx.File("a.txt")], ctx.Dest);
+        await WaitUntil(() => ctx.Queue.Snapshot().Any(j => j.Status == TransferStatus.Waiting));
+
+        ctx.Volumes.Reachable = true;
+        ctx.Queue.Retry(ctx.Queue.Snapshot()[0].Id);
+        await WaitUntil(() => ctx.Queue.Snapshot().Single().Status == TransferStatus.Done);
+        Assert.Equal(1, ctx.Queue.Snapshot()[0].RetryCount);
+        await ctx.Queue.StopAsync(CancellationToken.None);
+    }
+
     [Fact]
     public async Task Retry_reruns_a_failed_job()
     {