diff --git a/src/ClaudeDo.Ui/Services/Interfaces/IWorkerClient.cs b/src/ClaudeDo.Ui/Services/Interfaces/IWorkerClient.cs
index c15abd5..37bfdd4 100644
--- a/src/ClaudeDo.Ui/Services/Interfaces/IWorkerClient.cs
+++ b/src/ClaudeDo.Ui/Services/Interfaces/IWorkerClient.cs
@@ -18,6 +18,10 @@ public interface IWorkerClient : INotifyPropertyChanged
     event Action<string>? ListUpdatedEvent;
     event Action<string, string>? TaskMessageEvent;
 
+    event Action? PrepStartedEvent;
+    event Action<string>? PrepLineEvent;
+    event Action<bool>? PrepFinishedEvent;
+
     event Action<string, string>? PlanningMergeStartedEvent;
     event Action<string, string>? PlanningSubtaskMergedEvent;
     event Action<string, string, IReadOnlyList<string>>? PlanningMergeConflictEvent;
@@ -53,6 +57,7 @@ public interface IWorkerClient : INotifyPropertyChanged
     Task<string?> GetWeekReportAsync(DateOnly start, DateOnly end);
     Task<string> GenerateWeekReportAsync(DateOnly start, DateOnly end);
     Task<bool> RunDailyPrepNowAsync();
+    Task ClearMyDayAsync();
     Task<AppSettingsDto?> GetAppSettingsAsync();
     Task<List<DailyNoteDto>> GetDailyNotesAsync(DateOnly day);
     Task<DailyNoteDto?> AddDailyNoteAsync(DateOnly day, string text);
diff --git a/src/ClaudeDo.Ui/Services/WorkerClient.cs b/src/ClaudeDo.Ui/Services/WorkerClient.cs
index 21ee5b1..2f68131 100644
--- a/src/ClaudeDo.Ui/Services/WorkerClient.cs
+++ b/src/ClaudeDo.Ui/Services/WorkerClient.cs
@@ -51,6 +51,10 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
     public event Action<string>? ListUpdatedEvent;
     public event Action<WorkerLogEntry>? WorkerLogReceivedEvent;
 
+    public event Action? PrepStartedEvent;
+    public event Action<string>? PrepLineEvent;
+    public event Action<bool>? PrepFinishedEvent;
+
     public event Action<string, string>? PlanningMergeStartedEvent;
     public event Action<string, string>? PlanningSubtaskMergedEvent;
     public event Action<string, string, IReadOnlyList<string>>? PlanningMergeConflictEvent;
@@ -171,6 +175,10 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
         {
             Dispatcher.UIThread.Post(() => PrimeFired?.Invoke(new PrimeFiredEvent(id, ok, msg, when)));
         });
+
+        _hub.On("PrepStarted", () => Dispatcher.UIThread.Post(() => PrepStartedEvent?.Invoke()));
+        _hub.On<string>("PrepLine", line => Dispatcher.UIThread.Post(() => PrepLineEvent?.Invoke(line)));
+        _hub.On<bool>("PrepFinished", ok => Dispatcher.UIThread.Post(() => PrepFinishedEvent?.Invoke(ok)));
     }
 
     public Task StartAsync()
@@ -337,6 +345,9 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
     public Task<bool> RunDailyPrepNowAsync()
         => _hub.InvokeAsync<bool>("RunDailyPrepNow");
 
+    public Task ClearMyDayAsync()
+        => _hub.InvokeAsync("ClearMyDay");
+
     public async Task<List<DailyNoteDto>> GetDailyNotesAsync(DateOnly day)
         => await TryInvokeAsync<List<DailyNoteDto>>("GetDailyNotes", IsoDay(day)) ?? new List<DailyNoteDto>();
 
diff --git a/tests/ClaudeDo.Ui.Tests/StubWorkerClient.cs b/tests/ClaudeDo.Ui.Tests/StubWorkerClient.cs
index 1a612b9..c3793f9 100644
--- a/tests/ClaudeDo.Ui.Tests/StubWorkerClient.cs
+++ b/tests/ClaudeDo.Ui.Tests/StubWorkerClient.cs
@@ -22,6 +22,9 @@ public abstract class StubWorkerClient : IWorkerClient
     public event Action<string>? WorktreeUpdatedEvent;
     public event Action<string>? ListUpdatedEvent;
     public event Action<string, string>? TaskMessageEvent;
+    public event Action? PrepStartedEvent;
+    public event Action<string>? PrepLineEvent;
+    public event Action<bool>? PrepFinishedEvent;
     public event Action<string, string>? PlanningMergeStartedEvent;
     public event Action<string, string>? PlanningSubtaskMergedEvent;
     public event Action<string, string, IReadOnlyList<string>>? PlanningMergeConflictEvent;
@@ -29,6 +32,12 @@ public abstract class StubWorkerClient : IWorkerClient
     public event Action<string>? PlanningCompletedEvent;
 #pragma warning restore CS0067
 
+    public int ClearMyDayCalls { get; private set; }
+
+    public void RaisePrepStarted() => PrepStartedEvent?.Invoke();
+    public void RaisePrepLine(string line) => PrepLineEvent?.Invoke(line);
+    public void RaisePrepFinished(bool ok) => PrepFinishedEvent?.Invoke(ok);
+
     public virtual bool IsConnected => false;
 
     public virtual Task WakeQueueAsync() => Task.CompletedTask;
@@ -63,6 +72,7 @@ public abstract class StubWorkerClient : IWorkerClient
     public virtual Task<string?> GetWeekReportAsync(DateOnly start, DateOnly end) => Task.FromResult<string?>(null);
     public virtual Task<string> GenerateWeekReportAsync(DateOnly start, DateOnly end) => Task.FromResult("");
     public virtual Task<bool> RunDailyPrepNowAsync() => Task.FromResult(false);
+    public virtual Task ClearMyDayAsync() { ClearMyDayCalls++; return Task.CompletedTask; }
     public virtual Task<AppSettingsDto?> GetAppSettingsAsync() => Task.FromResult<AppSettingsDto?>(null);
     public virtual Task<List<DailyNoteDto>> GetDailyNotesAsync(DateOnly day) => Task.FromResult(new List<DailyNoteDto>());
     public virtual Task<DailyNoteDto?> AddDailyNoteAsync(DateOnly day, string text) => Task.FromResult<DailyNoteDto?>(null);
diff --git a/tests/ClaudeDo.Worker.Tests/UiVm/TasksIslandViewModelPlanningTests.cs b/tests/ClaudeDo.Worker.Tests/UiVm/TasksIslandViewModelPlanningTests.cs
index d69019a..b87d3cf 100644
--- a/tests/ClaudeDo.Worker.Tests/UiVm/TasksIslandViewModelPlanningTests.cs
+++ b/tests/ClaudeDo.Worker.Tests/UiVm/TasksIslandViewModelPlanningTests.cs
@@ -59,6 +59,9 @@ sealed class FakeWorkerClient : IWorkerClient
     public Task FinalizePlanningSessionAsync(string taskId, bool queueAgentTasks = true, CancellationToken ct = default) { FinalizePlanningCalls++; return Task.CompletedTask; }
     public Task<int> GetPendingDraftCountAsync(string taskId, CancellationToken ct = default) => Task.FromResult(0);
 
+    public event Action? PrepStartedEvent;
+    public event Action<string>? PrepLineEvent;
+    public event Action<bool>? PrepFinishedEvent;
     public event Action<string, string>? PlanningMergeStartedEvent;
     public event Action<string, string>? PlanningSubtaskMergedEvent;
     public event Action<string, string, IReadOnlyList<string>>? PlanningMergeConflictEvent;
@@ -77,6 +80,7 @@ sealed class FakeWorkerClient : IWorkerClient
     public Task<string?> GetWeekReportAsync(DateOnly start, DateOnly end) => Task.FromResult<string?>(null);
     public Task<string> GenerateWeekReportAsync(DateOnly start, DateOnly end) => Task.FromResult("");
     public Task<bool> RunDailyPrepNowAsync() => Task.FromResult(false);
+    public Task ClearMyDayAsync() => Task.CompletedTask;
     public Task<List<DailyNoteDto>> GetDailyNotesAsync(DateOnly day) => Task.FromResult(new List<DailyNoteDto>());
     public Task<DailyNoteDto?> AddDailyNoteAsync(DateOnly day, string text) => Task.FromResult<DailyNoteDto?>(null);
     public Task UpdateDailyNoteAsync(string id, string text) => Task.CompletedTask;