chore(ui): remove dead Mission Control monitor-pane stack

Auto-seeding of monitor tiles was disabled in 724814f; Mission Control now
only shows ConPTY panes. Removes Monitors/EnsureMonitor/SeedActive, the
detach/re-dock machinery, MonitorPaneView and the detached monitor window,
plus their tests and orphaned localization keys.

TaskMonitorViewModel itself stays: DetailsIslandViewModel still uses it as
the backing state for the task Log/AgentState/AskUser-question UI, so only
its Mission-Control-only members (Title/DisplayTitle, detach, cancel command,
IMissionControlPane) were stripped. IMissionControlPane/Panes were kept
(now a 1:1 mirror of ConPtySessions) rather than dissolved, to avoid
churning the still-live ConPTY pane tests and AXAML for a single-implementer
interface.

Visual verification still open: Mission Control with several open ConPTY
tiles, and the Focus/Overview toggle.

src/ClaudeDo.Localization/locales/de.json

@@ -266,13 +266,8 @@
     "reviewResetTip": "Alle Änderungen verwerfen und die Aufgabe auf Leerlauf zurücksetzen"
   },
   "missionControl": {
-    "openInApp": "In App öffnen",
-    "cancel": "Abbrechen",
-    "detach": "Abdocken",
-    "redock": "Andocken",
     "windowTitle": "Mission Control",
     "newSession": "Neue Sitzung",
-    "clearFinished": "Erledigte entfernen",
     "empty": "Keine laufenden Aufgaben",
     "settings": "Einstellungen",
     "queue": "Warteschlange",

src/ClaudeDo.Localization/locales/en.json

@@ -266,13 +266,8 @@
     "reviewResetTip": "Discard all changes and reset the task to Idle"
   },
   "missionControl": {
-    "openInApp": "Open in app",
-    "cancel": "Cancel",
-    "detach": "Detach",
-    "redock": "Re-dock",
     "windowTitle": "Mission Control",
     "newSession": "New session",
-    "clearFinished": "Clear finished",
     "empty": "No running tasks",
     "settings": "Settings",
     "queue": "Queue",

src/ClaudeDo.Ui/Services/IDialogService.cs

@@ -1,8 +1,6 @@
-using System;
 using System.Threading.Tasks;
 using ClaudeDo.Ui.ViewModels;
 using ClaudeDo.Ui.ViewModels.Conflicts;
-using ClaudeDo.Ui.ViewModels.Islands;
 using ClaudeDo.Ui.ViewModels.Modals;
 
 namespace ClaudeDo.Ui.Services;
@@ -37,7 +35,4 @@ public interface IDialogService
 
     /// <summary>Show (or re-show + focus) the modeless Mission Control window. Lazily created; hides on close.</summary>
     void ShowMissionControl(MissionControlViewModel vm);
-
-    /// <summary>Show a detached monitor in its own window; <paramref name="onClosed"/> re-docks it when that window closes.</summary>
-    void ShowDetachedMonitor(TaskMonitorViewModel monitor, Action onClosed);
 }

src/ClaudeDo.Ui/ViewModels/Islands/TaskMonitorViewModel.cs

@@ -8,12 +8,11 @@ using ClaudeDo.Data.Repositories;
 using ClaudeDo.Ui.Helpers;
 using ClaudeDo.Ui.Localization;
 using ClaudeDo.Ui.Services;
-using ClaudeDo.Ui.ViewModels.MissionControl;
 using Microsoft.EntityFrameworkCore;
 
 namespace ClaudeDo.Ui.ViewModels.Islands;
 
-public sealed partial class TaskMonitorViewModel : ViewModelBase, IMissionControlPane, IDisposable
+public sealed partial class TaskMonitorViewModel : ViewModelBase, IDisposable
 {
     private readonly IDbContextFactory<ClaudeDoDbContext> _dbFactory;
     private readonly IWorkerClient _worker;
@@ -28,13 +27,6 @@ public sealed partial class TaskMonitorViewModel : ViewModelBase, IMissionContro
 
     [ObservableProperty] private string _agentState = "idle";
 
-    [ObservableProperty]
-    [NotifyPropertyChangedFor(nameof(DisplayTitle))]
-    private string? _title;
-
-    public string DisplayTitle =>
-        string.IsNullOrWhiteSpace(Title) ? (SubscribedTaskId ?? "task") : Title!;
-
     public string AgentStatusLabel => Loc.T($"vm.agentStatus.{AgentState}");
     public bool IsIdle               => AgentState == "idle";
     public bool IsQueued             => AgentState == "queued";
@@ -205,43 +197,6 @@ public sealed partial class TaskMonitorViewModel : ViewModelBase, IMissionContro
         ClearPendingQuestion();
     }
 
-    [ObservableProperty]
-    [NotifyPropertyChangedFor(nameof(DetachTooltip))]
-    private bool _isDetached;
-
-    // Localized tooltip for the detach/re-dock toggle button.
-    public string DetachTooltip => Loc.T(IsDetached ? "missionControl.redock" : "missionControl.detach");
-
-    // Set by the detached window so the re-dock action can close it.
-    public Action? CloseWindowRequested { get; set; }
-
-    // Set by the host (e.g. Mission Control) to navigate the main app to this task.
-    public Action<string>? OpenInAppRequested { get; set; }
-
-    // Set by the host (Mission Control) to pop this monitor out into its own window.
-    public Action<TaskMonitorViewModel>? DetachRequested { get; set; }
-
-    [RelayCommand]
-    private void Detach()
-    {
-        if (IsDetached) CloseWindowRequested?.Invoke();   // re-dock: close the detached window
-        else DetachRequested?.Invoke(this);               // detach: pop out to its own window
-    }
-
-    [RelayCommand]
-    private void OpenInApp()
-    {
-        if (!string.IsNullOrEmpty(_subscribedTaskId))
-            OpenInAppRequested?.Invoke(_subscribedTaskId);
-    }
-
-    [RelayCommand]
-    private async System.Threading.Tasks.Task CancelTask()
-    {
-        if (!string.IsNullOrEmpty(_subscribedTaskId) && (IsRunning || IsQueued))
-            await _worker.CancelTaskAsync(_subscribedTaskId);
-    }
-
     public void SetTaskId(string id) => _subscribedTaskId = id;
 
     public void ApplyState(ClaudeDo.Data.Models.TaskStatus status) =>

src/ClaudeDo.Ui/ViewModels/IslandsShellViewModel.cs

@@ -213,7 +213,6 @@ public sealed partial class IslandsShellViewModel : ViewModelBase, IDisposable
         Lists = lists; Tasks = tasks; Details = details; Worker = worker;
         MissionControl = missionControl;
         MissionControl.OpenInApp = id => _ = RevealTaskAsync(id);
-        MissionControl.ShowDetached = (monitor, reDock) => Dialogs?.ShowDetachedMonitor(monitor, reDock);
         MissionControl.OpenSettingsRequested = () => Lists.OpenSettingsCommand.Execute(null);
         MissionControl.ErrorReported += FlashFooterError;
         // Keep the task rows' "Interactive" chip in step with Mission Control's open ConPTY panes.

src/ClaudeDo.Ui/ViewModels/MissionControl/ConPtyPaneViewModel.cs

@@ -9,9 +9,7 @@ namespace ClaudeDo.Ui.ViewModels.MissionControl;
 /// <summary>
 /// Command Center pane hosting an embedded ConPTY terminal for either one task's interactive
 /// Claude session, or an ad-hoc/free session in a user-chosen directory (no task, <see cref="TaskId"/>
-/// is null — ad-hoc panes are never deduped, unlike task-based ones). Distinct from the streamed-log
+/// is null — ad-hoc panes are never deduped, unlike task-based ones).
-/// <see cref="ClaudeDo.Ui.ViewModels.Islands.TaskMonitorViewModel"/> pane; the two coexist until
-/// the streaming interactive stack is removed.
 /// </summary>
 public sealed partial class ConPtyPaneViewModel : ViewModelBase, IMissionControlPane, IDisposable
 {

src/ClaudeDo.Ui/ViewModels/MissionControl/IMissionControlPane.cs

@@ -1,10 +1,9 @@
 namespace ClaudeDo.Ui.ViewModels.MissionControl;
 
 /// <summary>
-/// Common contract for anything hosted as a pane in the Command Center — implemented by both
+/// Common contract for anything hosted as a pane in the Command Center — currently only
-/// the streamed-log <see cref="ClaudeDo.Ui.ViewModels.Islands.TaskMonitorViewModel"/> and the
+/// <see cref="ConPtyPaneViewModel"/>, kept as its own abstraction so the grid/tabs layout
-/// embedded ConPTY <see cref="ConPtyPaneViewModel"/> — so the layout toggle (grid/tabs) can
+/// toggle binds a pane collection rather than a concrete ConPTY-specific type.
-/// bind one heterogeneous pane collection.
 /// </summary>
 public interface IMissionControlPane
 {

src/ClaudeDo.Ui/ViewModels/MissionControlViewModel.cs

@@ -5,10 +5,8 @@ using System.Linq;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using ClaudeDo.Data;
-using ClaudeDo.Data.Repositories;
 using ClaudeDo.Ui.Localization;
 using ClaudeDo.Ui.Services;
-using ClaudeDo.Ui.ViewModels.Islands;
 using ClaudeDo.Ui.ViewModels.MissionControl;
 using Microsoft.EntityFrameworkCore;
 
@@ -23,14 +21,12 @@ public sealed partial class MissionControlViewModel : ViewModelBase, IDisposable
     private readonly Action<string> _onTaskUpdated;
     private readonly Action _onConnectionRestored;
 
-    public ObservableCollection<TaskMonitorViewModel> Monitors { get; } = new();
-
     // Embedded ConPTY sessions (task-based only) — a manual cockpit detached from the
-    // review/merge/status machinery. Mirrored into Panes alongside the streamed-log Monitors.
+    // review/merge/status machinery.
     public ObservableCollection<ConPtyPaneViewModel> ConPtySessions { get; } = new();
 
-    // Unified view of Monitors ++ ConPtySessions (in that order) so the layout toggle can
+    // Mirror of ConPtySessions typed as the pane abstraction so the layout toggle (grid/tabs)
-    // present one heterogeneous collection as either a grid or tabs.
+    // binds one contract rather than a ConPTY-specific type.
     public ObservableCollection<IMissionControlPane> Panes { get; } = new();
 
     [ObservableProperty] private int _columnCount = 1;
@@ -47,25 +43,11 @@ public sealed partial class MissionControlViewModel : ViewModelBase, IDisposable
     /// wires this into the footer error strip, same as the island view models' ErrorReported.</summary>
     public event Action<string>? ErrorReported;
 
-    private Action<string>? _openInApp;
+    public Action<string>? OpenInApp { get; set; }
-    public Action<string>? OpenInApp
-    {
-        get => _openInApp;
-        set
-        {
-            _openInApp = value;
-            foreach (var m in Monitors) m.OpenInAppRequested = value;
-        }
-    }
-
-    // View-layer seam: show a detached monitor in its own window. Second arg is the re-dock callback
-    // invoked when that window closes.
-    public Action<TaskMonitorViewModel, Action>? ShowDetached { get; set; }
 
     // View-layer seam: open the app Settings modal from the Mission Control window.
     public Action? OpenSettingsRequested { get; set; }
 
-    public bool HasMonitors => Monitors.Count > 0;
     public bool HasPanes => Panes.Count > 0;
 
     // Read-only view of the worker queue (tasks waiting to run), shown as a side strip.
@@ -77,7 +59,6 @@ public sealed partial class MissionControlViewModel : ViewModelBase, IDisposable
         _dbFactory = dbFactory;
         _worker = worker;
 
-        Monitors.CollectionChanged += OnMonitorsChanged;
         ConPtySessions.CollectionChanged += OnConPtySessionsChanged;
         Panes.CollectionChanged += OnPanesChanged;
 
@@ -119,7 +100,7 @@ public sealed partial class MissionControlViewModel : ViewModelBase, IDisposable
                     Title = r.Title ?? string.Empty,
                     IsBlocked = r.BlockedByTaskId != null,
                     IsRunning = r.Status == ClaudeDo.Data.Models.TaskStatus.Running,
-                    OpenInAppCommand = new RelayCommand(() => _openInApp?.Invoke(id)),
+                    OpenInAppCommand = new RelayCommand(() => OpenInApp?.Invoke(id)),
                 });
             }
             OnPropertyChanged(nameof(HasQueued));
@@ -147,88 +128,12 @@ public sealed partial class MissionControlViewModel : ViewModelBase, IDisposable
         await RefreshQueueAsync();
     }
 
-    // Kept intentionally — unused since auto-seeding was disabled (2026-07-29).
-    internal void SeedActive()
-    {
-        foreach (var a in _worker.GetActiveTasks())
-            EnsureMonitor(a.TaskId);
-    }
-
-    // Kept intentionally — unused since auto-seeding was disabled (2026-07-29).
-    internal void EnsureMonitor(string taskId)
-    {
-        if (string.IsNullOrEmpty(taskId)) return;
-        if (Monitors.Any(m => m.SubscribedTaskId == taskId)) return;
-
-        var monitor = new TaskMonitorViewModel(_dbFactory, _worker);
-        monitor.SetTaskId(taskId);
-        monitor.OpenInAppRequested = _openInApp;
-        monitor.DetachRequested = Detach;
-        Monitors.Add(monitor);
-        _ = HydrateAsync(monitor, taskId);
-    }
-
-    private void Detach(TaskMonitorViewModel monitor)
-    {
-        if (!Monitors.Contains(monitor)) return;
-        monitor.IsDetached = true;
-        Monitors.Remove(monitor);            // drop from grid — do NOT dispose; it keeps streaming
-        ShowDetached?.Invoke(monitor, () => ReDock(monitor));
-    }
-
-    private void ReDock(TaskMonitorViewModel monitor)
-    {
-        monitor.IsDetached = false;
-        if (!Monitors.Contains(monitor) && monitor.SubscribedTaskId is not null)
-            Monitors.Add(monitor);           // back into the grid
-    }
-
-    private async System.Threading.Tasks.Task HydrateAsync(TaskMonitorViewModel monitor, string taskId)
-    {
-        try
-        {
-            await using var ctx = await _dbFactory.CreateDbContextAsync();
-            var entity = await ctx.Tasks.AsNoTracking().FirstOrDefaultAsync(t => t.Id == taskId);
-            if (entity is null || monitor.SubscribedTaskId != taskId) return;
-            monitor.ApplyState(entity.Status);
-            monitor.Title = entity.Title;
-            var latestRun = await new TaskRunRepository(ctx).GetLatestByTaskIdAsync(taskId);
-            monitor.ApplyOutcome(entity.Result, latestRun?.ErrorMarkdown);
-            await monitor.ReplayLogFileAsync(entity.LogPath, CancellationToken.None);
-
-            // Re-attach: if the task is blocked on an AskUser question right now, surface it.
-            var pending = await _worker.GetPendingQuestionAsync(taskId);
-            if (pending is not null && monitor.SubscribedTaskId == taskId)
-                monitor.SetPendingQuestion(pending.QuestionId, pending.Question);
-        }
-        catch { /* best-effort hydrate */ }
-    }
-
-    [RelayCommand]
-    private void ClearFinished()
-    {
-        foreach (var m in Monitors.Where(m => m.IsDone || m.IsFailed || m.IsCancelled || m.IsWaitingForReview).ToList())
-        {
-            Monitors.Remove(m);
-            m.Dispose();
-        }
-    }
-
     [RelayCommand]
     private void OpenSettings() => OpenSettingsRequested?.Invoke();
 
     [RelayCommand]
     private void ToggleLayout() => IsFocusMode = !IsFocusMode;
 
-    public void MoveMonitor(TaskMonitorViewModel dragged, TaskMonitorViewModel target)
-    {
-        if (ReferenceEquals(dragged, target)) return;
-        var from = Monitors.IndexOf(dragged);
-        var to = Monitors.IndexOf(target);
-        if (from < 0 || to < 0) return;
-        Monitors.Move(from, to);
-    }
-
     // Fetches the launch spec for a task's worktree and hosts an embedded ConPTY session as a
     // Command Center pane (task-based only).
     public async System.Threading.Tasks.Task OpenConPtySessionAsync(string taskId)
@@ -359,42 +264,19 @@ public sealed partial class MissionControlViewModel : ViewModelBase, IDisposable
         pane.Dispose();
     }
 
-    // Mirrors Monitors' add/remove/move into the front (Monitors-prefix) section of Panes.
+    // Mirrors ConPtySessions' add/remove 1:1 into Panes (typed as the pane abstraction).
-    private void OnMonitorsChanged(object? sender, NotifyCollectionChangedEventArgs e)
-    {
-        switch (e.Action)
-        {
-            case NotifyCollectionChangedAction.Add:
-                Panes.Insert(e.NewStartingIndex, (TaskMonitorViewModel)e.NewItems![0]!);
-                break;
-            case NotifyCollectionChangedAction.Remove:
-                Panes.RemoveAt(e.OldStartingIndex);
-                break;
-            case NotifyCollectionChangedAction.Move:
-                Panes.Move(e.OldStartingIndex, e.NewStartingIndex);
-                break;
-            default: // Reset (Dispose's Monitors.Clear())
-                foreach (var p in Panes.OfType<TaskMonitorViewModel>().ToList())
-                    Panes.Remove(p);
-                break;
-        }
-        OnPropertyChanged(nameof(HasMonitors));
-    }
-
-    // Mirrors ConPtySessions' add/remove into the tail (ConPtySessions-suffix) section of Panes.
     private void OnConPtySessionsChanged(object? sender, NotifyCollectionChangedEventArgs e)
     {
         switch (e.Action)
         {
             case NotifyCollectionChangedAction.Add:
-                Panes.Insert(Monitors.Count + e.NewStartingIndex, (ConPtyPaneViewModel)e.NewItems![0]!);
+                Panes.Insert(e.NewStartingIndex, (ConPtyPaneViewModel)e.NewItems![0]!);
                 break;
             case NotifyCollectionChangedAction.Remove:
-                Panes.RemoveAt(Monitors.Count + e.OldStartingIndex);
+                Panes.RemoveAt(e.OldStartingIndex);
                 break;
             default: // Reset
-                foreach (var p in Panes.OfType<ConPtyPaneViewModel>().ToList())
+                Panes.Clear();
-                    Panes.Remove(p);
                 break;
         }
     }
@@ -420,11 +302,8 @@ public sealed partial class MissionControlViewModel : ViewModelBase, IDisposable
         _worker.TaskFinishedEvent -= _onTaskFinished;
         _worker.TaskUpdatedEvent -= _onTaskUpdated;
         _worker.ConnectionRestoredEvent -= _onConnectionRestored;
-        Monitors.CollectionChanged -= OnMonitorsChanged;
         ConPtySessions.CollectionChanged -= OnConPtySessionsChanged;
         Panes.CollectionChanged -= OnPanesChanged;
-        foreach (var m in Monitors) m.Dispose();
-        Monitors.Clear();
         foreach (var c in ConPtySessions.ToList())
         {
             c.ErrorReported -= OnConPtyPaneError;

src/ClaudeDo.Ui/Views/Islands/DetailsIslandView.axaml

@@ -81,8 +81,7 @@
             </StackPanel>
           </Border>
 
-          <!-- Question prompt (AskUser): answer the running task's question inline, mirroring
+          <!-- Question prompt (AskUser): answer the running task's question inline. -->
-               the Mission Control banner. State is shared via the same TaskMonitorViewModel. -->
           <Border DockPanel.Dock="Top"
                   IsVisible="{Binding Monitor.HasPendingQuestion}"
                   Margin="0,0,0,10" Padding="12,8"

src/ClaudeDo.Ui/Views/MissionControl/MissionControlView.axaml

@@ -1,24 +1,17 @@
 <UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:vm="using:ClaudeDo.Ui.ViewModels"
-             xmlns:vmi="using:ClaudeDo.Ui.ViewModels.Islands"
              xmlns:vmm="using:ClaudeDo.Ui.ViewModels.MissionControl"
              xmlns:mc="using:ClaudeDo.Ui.Views.MissionControl"
              xmlns:loc="using:ClaudeDo.Ui.Localization"
              x:DataType="vm:MissionControlViewModel"
              x:Class="ClaudeDo.Ui.Views.MissionControl.MissionControlView">
   <UserControl.DataTemplates>
-    <!-- Polymorphic pane templates: both the grid ItemsControl and the focus-mode TabControl
-         resolve per-item content through these (no explicit ItemTemplate on either). -->
-    <DataTemplate DataType="vmi:TaskMonitorViewModel">
-      <mc:MonitorPaneView Margin="6" />
-    </DataTemplate>
     <DataTemplate DataType="vmm:ConPtyPaneViewModel">
       <mc:ConPtyPaneView Margin="6" />
     </DataTemplate>
   </UserControl.DataTemplates>
-  <DockPanel LastChildFill="True" Background="{DynamicResource VoidBrush}"
+  <DockPanel LastChildFill="True" Background="{DynamicResource VoidBrush}">
-             DragDrop.AllowDrop="True">
 
     <!-- Header -->
     <Border DockPanel.Dock="Top"
@@ -50,9 +43,6 @@
             <PathIcon Data="{StaticResource Icon.Settings}" Width="15" Height="15"
                       Foreground="{DynamicResource TextMuteBrush}"/>
           </Button>
-          <Button Classes="btn"
-                  Content="{loc:Tr missionControl.clearFinished}"
-                  Command="{Binding ClearFinishedCommand}" />
         </StackPanel>
       </Grid>
     </Border>

src/ClaudeDo.Ui/Views/MissionControl/MissionControlView.axaml.cs

@@ -1,25 +1,15 @@
-using System.Linq;
 using Avalonia.Controls;
-using Avalonia.Input;
 using Avalonia.Interactivity;
 using Avalonia.Platform.Storage;
-using Avalonia.VisualTree;
 using ClaudeDo.Ui.ViewModels;
-using ClaudeDo.Ui.ViewModels.Islands;
 
 namespace ClaudeDo.Ui.Views.MissionControl;
 
 public partial class MissionControlView : UserControl
 {
-    // Shared with MonitorPaneView (the drag source).
-    public static readonly DataFormat<string> PaneFormat =
-        DataFormat.CreateStringApplicationFormat("claudedo-monitor-pane");
-
     public MissionControlView()
     {
         InitializeComponent();
-        AddHandler(DragDrop.DragOverEvent, OnPaneDragOver);
-        AddHandler(DragDrop.DropEvent, OnPaneDrop);
     }
 
     // Ad-hoc ConPTY session: the view owns the folder picker, the VM only takes the chosen path.
@@ -38,31 +28,4 @@ public partial class MissionControlView : UserControl
 
         await vm.OpenAdHocConPtySessionAsync(folders[0].Path.LocalPath);
     }
-
-    private void OnPaneDragOver(object? sender, DragEventArgs e)
-    {
-        var dt = e.DataTransfer;
-        e.DragEffects = (dt?.Contains(PaneFormat) ?? false) ? DragDropEffects.Move : DragDropEffects.None;
-    }
-
-    private void OnPaneDrop(object? sender, DragEventArgs e)
-    {
-        if (DataContext is not MissionControlViewModel vm) return;
-        var dt = e.DataTransfer;
-        if (dt is null) return;
-
-        // A pane dragged within the grid → reorder. (Drag-to-queue from the main app now arrives
-        // via the custom ghost drag's screen hit-test, not an OLE drop.)
-        var draggedId = dt.TryGetValue(PaneFormat);
-        if (string.IsNullOrEmpty(draggedId)) return;
-        if (e.Source is not Avalonia.Visual src) return;
-
-        var targetPane = src.FindAncestorOfType<MonitorPaneView>();
-        if (targetPane?.DataContext is not TaskMonitorViewModel target) return;
-
-        var dragged = vm.Monitors.FirstOrDefault(m => m.SubscribedTaskId == draggedId);
-        if (dragged is null) return;
-
-        vm.MoveMonitor(dragged, target);
-    }
 }

src/ClaudeDo.Ui/Views/MissionControl/MonitorPaneView.axaml

@@ -1,114 +0,0 @@
-<UserControl xmlns="https://github.com/avaloniaui"
-             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             xmlns:vm="using:ClaudeDo.Ui.ViewModels.Islands"
-             xmlns:islands="using:ClaudeDo.Ui.Views.Islands"
-             xmlns:loc="using:ClaudeDo.Ui.Localization"
-             x:DataType="vm:TaskMonitorViewModel"
-             x:Class="ClaudeDo.Ui.Views.MissionControl.MonitorPaneView">
-  <Border Classes="monitor-pane"
-          DragDrop.AllowDrop="True"
-          Classes.mon-review="{Binding IsWaitingForReview}"
-          Classes.mon-done="{Binding IsDone}"
-          Classes.mon-roadblock="{Binding HasRoadblock}"
-          Classes.mon-failed="{Binding IsFailed}"
-          BorderThickness="1" CornerRadius="10" ClipToBounds="True">
-    <DockPanel LastChildFill="True">
-
-      <!-- Header: per-task action icons -->
-      <Border DockPanel.Dock="Top"
-              Background="{DynamicResource Surface2Brush}"
-              BorderBrush="{DynamicResource LineBrush}"
-              BorderThickness="0,0,0,1" Padding="6,3"
-              PointerPressed="OnHeaderPressed">
-        <StackPanel Orientation="Horizontal" Spacing="2"
-                    HorizontalAlignment="Right" VerticalAlignment="Center">
-          <Button Classes="title-ctrl"
-                  Command="{Binding OpenInAppCommand}"
-                  ToolTip.Tip="{loc:Tr missionControl.openInApp}">
-            <PathIcon Data="{StaticResource Icon.ArrowOut}" Width="12" Height="12"/>
-          </Button>
-          <Button Classes="title-ctrl"
-                  Command="{Binding DetachCommand}"
-                  ToolTip.Tip="{Binding DetachTooltip}">
-            <PathIcon Data="{StaticResource Icon.WinMax}" Width="12" Height="12"/>
-          </Button>
-          <Button Classes="title-ctrl"
-                  Command="{Binding CancelTaskCommand}"
-                  IsVisible="{Binding IsRunning}"
-                  ToolTip.Tip="{loc:Tr missionControl.cancel}">
-            <PathIcon Data="{StaticResource Icon.WinClose}" Width="12" Height="12"/>
-          </Button>
-        </StackPanel>
-      </Border>
-
-      <!-- Roadblock banner (amber) -->
-      <Border DockPanel.Dock="Top"
-              IsVisible="{Binding HasRoadblock}"
-              Background="{DynamicResource RoadblockTintBrush}"
-              BorderBrush="{DynamicResource AmberBrush}"
-              BorderThickness="0,0,0,1" Padding="12,6">
-        <StackPanel Orientation="Horizontal" Spacing="8">
-          <PathIcon Data="{StaticResource Icon.Warning}"
-                    Foreground="{DynamicResource AmberBrush}"
-                    Width="13" Height="13" VerticalAlignment="Center" />
-          <TextBlock Classes="meta" Text="{Binding Roadblocks}"
-                     Foreground="{DynamicResource AmberBrush}"
-                     TextWrapping="Wrap" VerticalAlignment="Center" />
-        </StackPanel>
-      </Border>
-
-      <!-- Failure banner (red) -->
-      <Border DockPanel.Dock="Top"
-              IsVisible="{Binding ShowRoadblock}"
-              Background="{DynamicResource ErrorTintBrush}"
-              BorderBrush="{DynamicResource BloodBrush}"
-              BorderThickness="0,0,0,1" Padding="12,6">
-        <StackPanel Orientation="Horizontal" Spacing="8">
-          <PathIcon Data="{StaticResource Icon.Warning}"
-                    Foreground="{DynamicResource BloodBrush}"
-                    Width="13" Height="13" VerticalAlignment="Center" />
-          <TextBlock Classes="meta" Text="{Binding RoadblockMessage}"
-                     Foreground="{DynamicResource BloodBrush}"
-                     TextWrapping="Wrap" VerticalAlignment="Center" />
-        </StackPanel>
-      </Border>
-
-      <!-- Question prompt (AskUser): answer a running task's question inline -->
-      <Border DockPanel.Dock="Top"
-              IsVisible="{Binding HasPendingQuestion}"
-              Background="{DynamicResource AccentSoftBrush}"
-              BorderBrush="{DynamicResource AccentBrush}"
-              BorderThickness="0,0,0,1" Padding="12,8">
-        <StackPanel Spacing="6">
-          <TextBlock Classes="meta"
-                     Text="{loc:Tr missionControl.question.title}"
-                     Foreground="{DynamicResource AccentBrush}" FontWeight="SemiBold" />
-          <TextBlock Text="{Binding PendingQuestion}" TextWrapping="Wrap"
-                     Foreground="{DynamicResource TextBrush}" />
-          <Grid ColumnDefinitions="*,Auto" ColumnSpacing="6">
-            <TextBox Grid.Column="0"
-                     Text="{Binding AnswerDraft, UpdateSourceTrigger=PropertyChanged}"
-                     PlaceholderText="{loc:Tr missionControl.question.placeholder}"
-                     AcceptsReturn="False">
-              <TextBox.KeyBindings>
-                <KeyBinding Gesture="Enter" Command="{Binding SubmitAnswerCommand}" />
-              </TextBox.KeyBindings>
-            </TextBox>
-            <Button Grid.Column="1"
-                    Content="{loc:Tr missionControl.question.send}"
-                    Command="{Binding SubmitAnswerCommand}" />
-          </Grid>
-        </StackPanel>
-      </Border>
-
-      <!-- Console body: reuse SessionTerminalView -->
-      <islands:SessionTerminalView
-          Entries="{Binding Log}"
-          Label="{Binding DisplayTitle}"
-          IsRunning="{Binding IsRunning}"
-          IsDone="{Binding IsDone}"
-          IsFailed="{Binding IsFailed}" />
-
-    </DockPanel>
-  </Border>
-</UserControl>

src/ClaudeDo.Ui/Views/MissionControl/MonitorPaneView.axaml.cs

@@ -1,26 +0,0 @@
-using Avalonia.Controls;
-using Avalonia.Input;
-using Avalonia.VisualTree;
-using ClaudeDo.Ui.ViewModels.Islands;
-
-namespace ClaudeDo.Ui.Views.MissionControl;
-
-public partial class MonitorPaneView : UserControl
-{
-    public MonitorPaneView() => InitializeComponent();
-
-    private async void OnHeaderPressed(object? sender, PointerPressedEventArgs e)
-    {
-        if (DataContext is not TaskMonitorViewModel m || m.SubscribedTaskId is not { } id) return;
-        if (e.Source is not Avalonia.Visual src) return;
-        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed) return;
-
-        // Don't start a drag when the press landed on a header action button.
-        var button = src as Button ?? src.FindAncestorOfType<Button>();
-        if (button is not null) return;
-
-        var data = new DataTransfer();
-        data.Add(DataTransferItem.Create(MissionControlView.PaneFormat, id));
-        await DragDrop.DoDragDropAsync(e, data, DragDropEffects.Move);
-    }
-}

src/ClaudeDo.Ui/Views/MissionControl/TaskMonitorWindow.axaml

@@ -1,12 +0,0 @@
-<Window xmlns="https://github.com/avaloniaui"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:vm="using:ClaudeDo.Ui.ViewModels.Islands"
-        xmlns:mc="using:ClaudeDo.Ui.Views.MissionControl"
-        x:Class="ClaudeDo.Ui.Views.MissionControl.TaskMonitorWindow"
-        x:DataType="vm:TaskMonitorViewModel"
-        Title="{Binding DisplayTitle}"
-        Width="560" Height="620" MinWidth="360" MinHeight="320"
-        Background="{DynamicResource VoidBrush}"
-        Icon="avares://ClaudeDo.Ui/Assets/ClaudeTask.ico">
-  <mc:MonitorPaneView />
-</Window>

src/ClaudeDo.Ui/Views/MissionControl/TaskMonitorWindow.axaml.cs

@@ -1,23 +0,0 @@
-using System;
-using Avalonia.Controls;
-
-namespace ClaudeDo.Ui.Views.MissionControl;
-
-public partial class TaskMonitorWindow : Window
-{
-    public TaskMonitorWindow() => InitializeComponent();
-
-    protected override void OnOpened(EventArgs e)
-    {
-        base.OnOpened(e);
-        if (DataContext is ClaudeDo.Ui.ViewModels.Islands.TaskMonitorViewModel vm)
-            vm.CloseWindowRequested = Close;
-    }
-
-    protected override void OnClosed(EventArgs e)
-    {
-        if (DataContext is ClaudeDo.Ui.ViewModels.Islands.TaskMonitorViewModel vm)
-            vm.CloseWindowRequested = null;
-        base.OnClosed(e);
-    }
-}

src/ClaudeDo.Ui/Views/WindowDialogService.cs

@@ -9,7 +9,6 @@ using Avalonia.Media;
 using ClaudeDo.Ui.Services;
 using ClaudeDo.Ui.ViewModels;
 using ClaudeDo.Ui.ViewModels.Conflicts;
-using ClaudeDo.Ui.ViewModels.Islands;
 using ClaudeDo.Ui.ViewModels.Modals;
 using ClaudeDo.Ui.Views.Conflicts;
 using ClaudeDo.Ui.Views.MissionControl;
@@ -146,13 +145,6 @@ public sealed class WindowDialogService : IDialogService
         _missionControl.Activate();          // bring to front / focus
     }
 
-    public void ShowDetachedMonitor(TaskMonitorViewModel monitor, Action onClosed)
-    {
-        var win = new TaskMonitorWindow { DataContext = monitor };
-        win.Closed += (_, _) => onClosed();   // closing re-docks into the grid
-        win.Show();                            // modeless, independent
-    }
-
     public Task<bool> ConfirmAsync(string message)
     {
         var tcs = new TaskCompletionSource<bool>();

tests/ClaudeDo.Ui.Tests/ViewModels/MissionControlViewModelTests.cs

@@ -3,8 +3,6 @@ using ClaudeDo.Data;
 using ClaudeDo.Data.Models;
 using ClaudeDo.Ui.Services;
 using ClaudeDo.Ui.ViewModels;
-using ClaudeDo.Ui.ViewModels.Islands;
-using ClaudeDo.Ui.ViewModels.MissionControl;
 using Microsoft.EntityFrameworkCore;
 using Xunit;
 using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
@@ -60,7 +58,6 @@ public class MissionControlViewModelTests : IDisposable
         worker.RaiseTaskStarted("slot-1", "t1", DateTime.UtcNow);
         worker.RaiseTaskStarted("slot-2", "t2", DateTime.UtcNow);
 
-        Assert.Empty(vm.Monitors);
         Assert.Empty(vm.Panes);
     }
 
@@ -70,7 +67,6 @@ public class MissionControlViewModelTests : IDisposable
         var worker = new SeededFakeWorker();
         using var vm = BuildVm(worker);
 
-        Assert.Empty(vm.Monitors);
         Assert.Empty(vm.Panes);
     }
 
@@ -171,161 +167,6 @@ public class MissionControlViewModelTests : IDisposable
         Assert.Equal("r1", opened);
     }
 
-    // ── monitor machinery tests (EnsureMonitor still works when called directly) ─
-
-    [Fact]
-    public void EnsureMonitor_TwoCalls_CreateTwoMonitors_ColumnCountTwo()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-
-        vm.EnsureMonitor("t1");
-        vm.EnsureMonitor("t2");
-
-        Assert.Equal(2, vm.Monitors.Count);
-        Assert.Equal(2, vm.ColumnCount);
-    }
-
-    [Fact]
-    public void EnsureMonitor_DuplicateCall_DoesNotAddSecondMonitor()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-
-        vm.EnsureMonitor("t1");
-        vm.EnsureMonitor("t1");
-
-        Assert.Equal(1, vm.Monitors.Count);
-    }
-
-    [Fact]
-    public void Finish_KeepsPane_AndFlipsState()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-
-        vm.EnsureMonitor("t1");
-        worker.RaiseTaskFinished("slot-1", "t1", "done", DateTime.UtcNow);
-
-        Assert.Equal(1, vm.Monitors.Count);
-        Assert.True(vm.Monitors[0].IsDone);
-    }
-
-    [Fact]
-    public void ClearFinished_RemovesTerminalMonitors()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-
-        vm.EnsureMonitor("t1");
-        vm.EnsureMonitor("t2");
-        worker.RaiseTaskFinished("slot-1", "t1", "done", DateTime.UtcNow);
-
-        vm.ClearFinishedCommand.Execute(null);
-
-        Assert.Equal(1, vm.Monitors.Count);
-        Assert.Equal("t2", vm.Monitors[0].SubscribedTaskId);
-        Assert.Equal(1, vm.ColumnCount);
-    }
-
-    [Fact]
-    public void OpenInApp_PropagatesToMonitors_AndCommandInvokesHook()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-
-        string? revealed = null;
-        vm.OpenInApp = id => revealed = id;
-
-        vm.EnsureMonitor("t1");
-
-        vm.Monitors[0].OpenInAppCommand.Execute(null);
-
-        Assert.Equal("t1", revealed);
-    }
-
-    [Fact]
-    public void Detach_RemovesFromGrid_ThenReDockRestores()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-        TaskMonitorViewModel? detached = null;
-        Action? reDock = null;
-        vm.ShowDetached = (m, rd) => { detached = m; reDock = rd; };
-
-        vm.EnsureMonitor("t1");
-        var monitor = vm.Monitors[0];
-
-        monitor.DetachCommand.Execute(null);
-        Assert.Empty(vm.Monitors);
-        Assert.Same(monitor, detached);
-
-        reDock!.Invoke();
-        Assert.Single(vm.Monitors);
-        Assert.Same(monitor, vm.Monitors[0]);
-    }
-
-    [Fact]
-    public void ClearFinished_AlsoRemoves_WaitingForReview()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-        vm.EnsureMonitor("t1");
-        worker.RaiseTaskFinished("slot-1", "t1", "waiting_for_review", DateTime.UtcNow);
-
-        Assert.True(vm.Monitors[0].IsWaitingForReview);
-        vm.ClearFinishedCommand.Execute(null);
-        Assert.Empty(vm.Monitors);
-    }
-
-    [Fact]
-    public void Detach_SetsIsDetached_AndReDockClearsIt()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-        Action? reDock = null;
-        vm.ShowDetached = (m, rd) => reDock = rd;
-        vm.EnsureMonitor("t1");
-        var monitor = vm.Monitors[0];
-
-        monitor.DetachCommand.Execute(null);
-        Assert.True(monitor.IsDetached);
-        Assert.Empty(vm.Monitors);
-
-        reDock!.Invoke();
-        Assert.False(monitor.IsDetached);
-        Assert.Single(vm.Monitors);
-    }
-
-    [Fact]
-    public void DetachCommand_WhenDetached_RequestsWindowClose()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-        vm.ShowDetached = (m, rd) => { };
-        vm.EnsureMonitor("t1");
-        var monitor = vm.Monitors[0];
-
-        var closeRequested = false;
-        monitor.DetachCommand.Execute(null);              // detach (IsDetached = true)
-        monitor.CloseWindowRequested = () => closeRequested = true;
-        monitor.DetachCommand.Execute(null);              // now acts as re-dock
-        Assert.True(closeRequested);
-    }
-
-    [Fact]
-    public void MoveMonitor_ReordersCollection()
-    {
-        var worker = new FakeWorker();
-        using var vm = BuildVm(worker);
-        vm.EnsureMonitor("t1");
-        vm.EnsureMonitor("t2");
-        vm.EnsureMonitor("t3");
-
-        vm.MoveMonitor(vm.Monitors[0], vm.Monitors[2]);   // move t1 to t3's slot
-        Assert.Equal(new[] { "t2", "t3", "t1" }, vm.Monitors.Select(m => m.SubscribedTaskId).ToArray());
-    }
-
     [Fact]
     public async Task Queue_ReflectsQueuedTasks_InSortOrder()
     {
@@ -423,17 +264,17 @@ public class MissionControlViewModelTests : IDisposable
     }
 
     [Fact]
-    public async Task Panes_CombinesMonitorsThenConPtySessions_InOrder()
+    public async Task Panes_MirrorsConPtySessions_InOrder()
     {
         var worker = new FakeWorker();
         using var vm = BuildVm(worker);
 
-        vm.EnsureMonitor("t1");
+        await vm.OpenConPtySessionAsync("t1");
         await vm.OpenConPtySessionAsync("t2");
 
         Assert.Equal(2, vm.Panes.Count);
-        Assert.IsType<TaskMonitorViewModel>(vm.Panes[0]);
+        Assert.Same(vm.ConPtySessions[0], vm.Panes[0]);
-        Assert.IsType<ConPtyPaneViewModel>(vm.Panes[1]);
+        Assert.Same(vm.ConPtySessions[1], vm.Panes[1]);
         Assert.Equal(2, vm.ColumnCount);
     }
 

tests/ClaudeDo.Ui.Tests/ViewModels/TaskMonitorViewModelTests.cs

@@ -109,18 +109,6 @@ public class TaskMonitorViewModelTests : IDisposable
         Assert.True(vm.HasRoadblock);
     }
 
-    [Fact]
-    public void Detach_WhenNotDetached_InvokesDetachRequested()
-    {
-        var worker = new FakeWorker();
-        using var vm = Build(worker);
-        vm.SetTaskId("t1");
-        TaskMonitorViewModel? requested = null;
-        vm.DetachRequested = m => requested = m;
-        vm.DetachCommand.Execute(null);
-        Assert.Same(vm, requested);
-    }
-
     [Fact]
     public void TaskQuestionAsked_SurfacesQuestion()
     {

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandMoveToListTests.cs

@@ -68,7 +68,6 @@ public class TasksIslandMoveToListTests : IDisposable
         public Task ShowLogVisualizerAsync(LogVisualizerViewModel vm) => throw new NotImplementedException();
         public Task ShowErrorAsync(string message) => Task.CompletedTask;
         public void ShowMissionControl(MissionControlViewModel vm) => throw new NotImplementedException();
-        public void ShowDetachedMonitor(TaskMonitorViewModel monitor, Action onClosed) => throw new NotImplementedException();
     }
 
     private TasksIslandViewModel BuildViewModel() => new(new TestDbFactory(NewContext), worker: null);