diff --git a/src/ServiceBusToolset.CLI/CommandExecutionService.cs b/src/ServiceBusToolset.CLI/CommandExecutionService.cs
index 1f3a4bc..131bcfe 100644
--- a/src/ServiceBusToolset.CLI/CommandExecutionService.cs
+++ b/src/ServiceBusToolset.CLI/CommandExecutionService.cs
@@ -36,8 +36,14 @@ await result
                   .WithCommandAsync<MonitorSubscriptionsCliCommand>(cmd => HandleCommandAsync(cmd, stoppingToken))
                   .WithNotParsedAsync(HandleParseErrors);
         }
-        catch (Exception)
+        catch (Exception ex)
         {
+            Console.ResetColor();
+            Console.ForegroundColor = ConsoleColor.Red;
+            Console.Error.WriteLine();
+            Console.Error.WriteLine($"Unhandled error: {ex.GetType().Name}: {ex.Message}");
+            Console.Error.WriteLine(ex.ToString());
+            Console.ResetColor();
             Environment.ExitCode = 1;
         }
         finally
diff --git a/src/ServiceBusToolset.CLI/Common/Commands/BaseCommandHandler{TCommand,TResult}.cs b/src/ServiceBusToolset.CLI/Common/Commands/BaseCommandHandler{TCommand,TResult}.cs
index 4be0d85..ba42e54 100644
--- a/src/ServiceBusToolset.CLI/Common/Commands/BaseCommandHandler{TCommand,TResult}.cs
+++ b/src/ServiceBusToolset.CLI/Common/Commands/BaseCommandHandler{TCommand,TResult}.cs
@@ -43,6 +43,12 @@ public async Task<int> ExecuteAsync(TCommand command,
             Output.Warning("\nOperation cancelled.");
             return 1;
         }
+        catch (Exception ex)
+        {
+            Output.Error($"Unexpected error: {ex.GetType().Name}: {ex.Message}");
+            Output.Verbose(ex.ToString(), verbose);
+            return 1;
+        }
     }
 
     protected abstract Task<Result<TResult>> ExecuteCoreAsync(TCommand command, bool verbose, CancellationToken cancellationToken = default);
diff --git a/src/ServiceBusToolset.TestHarness/CommandExecutionService.cs b/src/ServiceBusToolset.TestHarness/CommandExecutionService.cs
index 472ba75..abcea44 100644
--- a/src/ServiceBusToolset.TestHarness/CommandExecutionService.cs
+++ b/src/ServiceBusToolset.TestHarness/CommandExecutionService.cs
@@ -21,8 +21,14 @@ await result
                   .WithCommandAsync<GenerateDlqCliCommand>(cmd => HandleCommandAsync(cmd, stoppingToken))
                   .WithNotParsedAsync(HandleParseErrors);
         }
-        catch (Exception)
+        catch (Exception ex)
         {
+            Console.ResetColor();
+            Console.ForegroundColor = ConsoleColor.Red;
+            Console.Error.WriteLine();
+            Console.Error.WriteLine($"Unhandled error: {ex.GetType().Name}: {ex.Message}");
+            Console.Error.WriteLine(ex.ToString());
+            Console.ResetColor();
             Environment.ExitCode = 1;
         }
         finally
diff --git a/src/ServiceBusToolset.TestHarness/Common/Commands/BaseCommandHandler.cs b/src/ServiceBusToolset.TestHarness/Common/Commands/BaseCommandHandler.cs
index 2ccd244..1179970 100644
--- a/src/ServiceBusToolset.TestHarness/Common/Commands/BaseCommandHandler.cs
+++ b/src/ServiceBusToolset.TestHarness/Common/Commands/BaseCommandHandler.cs
@@ -41,6 +41,12 @@ public async Task<int> ExecuteAsync(TCommand command,
             Output.Warning("\nOperation cancelled.");
             return 1;
         }
+        catch (Exception ex)
+        {
+            Output.Error($"Unexpected error: {ex.GetType().Name}: {ex.Message}");
+            Output.Verbose(ex.ToString(), verbose);
+            return 1;
+        }
     }
 
     protected abstract Task<int> ExecuteCoreAsync(TCommand command, bool verbose, CancellationToken cancellationToken = default);