oh god oh god what have i done

src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandViewModel.cs

@@ -5,6 +5,7 @@
 using System.Diagnostics;
 using Microsoft.CmdPal.Core.ViewModels.Models;
 using Microsoft.CommandPalette.Extensions;
+using WinRT;
 
 namespace Microsoft.CmdPal.Core.ViewModels;
 
@@ -93,6 +94,39 @@ public partial class CommandViewModel : ExtensionObjectViewModel
             Debug.WriteLine("}");
         }
 
+        if (model is IHaveProperties command3)
+        {
+            var p = command3.Properties;
+            Debug.WriteLine($"{Name} can haz properties = {{");
+            foreach (var kv in p)
+            {
+                Debug.WriteLine($"\t{kv.Key}: {kv.Value}");
+            }
+
+            Debug.WriteLine("}");
+        }
+
+        if (Name == "Whatever" || Name == "Revetahw" || Name == "Another")
+        {
+            var invokable = model as IInvokableCommand;
+            var page = model as IPage;
+            var props = model as IHaveProperties;
+            var com2 = model as ICommand2;
+            Debug.WriteLine($"{invokable},{page},{props},{com2}");
+
+            var f = model as IWinRTObject;
+            if (f != null)
+            {
+                var types = f.AdditionalTypeData;
+                foreach (var t in types)
+                {
+                    Debug.WriteLine($"{t.Key}, {t.Value}");
+                }
+
+                Debug.WriteLine(string.Empty);
+            }
+        }
+
         model.PropChanged += Model_PropChanged;
     }
 

src/modules/cmdpal/ext/SamplePagesExtension/Pages/SampleListPage.cs

@@ -2,8 +2,10 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System.Diagnostics.CodeAnalysis;
 using Microsoft.CommandPalette.Extensions;
 using Microsoft.CommandPalette.Extensions.Toolkit;
+using Windows.Foundation;
 using Windows.Foundation.Collections;
 using Windows.System;
 using Windows.Win32;
@@ -170,10 +172,22 @@ internal sealed partial class SampleListPage : ListPage
             {
                 Title = "Get the name of the Foreground window",
             },
+            new ListItem(new JustHasProps())
+            {
+                Title = "Not actually invokable",
+            },
             new ListItem(new CommandWithProperties())
             {
                 Title = "I have properties",
             },
+            new ListItem(new OtherCommandWithProperties())
+            {
+                Title = "I also have properties",
+            },
+            new ListItem(new AnotherCommandWithProperties())
+            {
+                Title = "InvokableCommand, IHaveProperties",
+            },
         ];
     }
 
@@ -188,4 +202,72 @@ internal sealed partial class SampleListPage : ListPage
             { "hmm?", null },
         };
     }
+
+#nullable enable
+    internal sealed partial class OtherCommandWithProperties : ICommand2, IInvokableCommand
+    {
+        public string Name => "Revetahw";
+
+        public IIconInfo Icon => new IconInfo("\uF146");
+
+        public string Id => string.Empty;
+
+        public event TypedEventHandler<object, IPropChangedEventArgs>? PropChanged;
+
+        public ICommandResult Invoke(object sender)
+        {
+            PropChanged?.Invoke(this, new PropChangedEventArgs(nameof(Name)));
+            return CommandResult.ShowToast("whoop");
+        }
+
+        public IPropertySet OtherProperties => new PropertySet()
+        {
+            { "Foo", "bar" },
+            { "Secret", 42 },
+            { "hmm?", null },
+        };
+    }
+
+    internal sealed partial class JustHasProps : ICommand2
+    {
+        public string Name => "JustHasProps";
+
+        public IIconInfo Icon => new IconInfo("\uF147");
+
+        public string Id => string.Empty;
+
+        public event TypedEventHandler<object, IPropChangedEventArgs>? PropChanged;
+
+        public ICommandResult Invoke(object sender)
+        {
+            PropChanged?.Invoke(this, new PropChangedEventArgs(nameof(Name)));
+            return CommandResult.ShowToast("whoop");
+        }
+
+        public IPropertySet OtherProperties => new PropertySet()
+        {
+            { "Foo", "bar" },
+            { "Secret", 42 },
+            { "hmm?", null },
+        };
+    }
+
+    internal sealed partial class AnotherCommandWithProperties : InvokableCommand, IHaveProperties
+    {
+        [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(IHaveProperties))]
+        static AnotherCommandWithProperties()
+        {
+        }
+
+        public override string Name => "Another";
+
+        public override IconInfo Icon => new IconInfo("\uF147");
+
+        public IPropertySet Properties => new PropertySet()
+        {
+            { "it", "doesn't" },
+            { "matter", 42 },
+            { "nothing seems to", "work" },
+        };
+    }
 }

src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions/Microsoft.CommandPalette.Extensions.idl

@@ -1,6 +1,6 @@
 namespace Microsoft.CommandPalette.Extensions
 {
-    [contractversion(2)]
+    [contractversion(1)]
     apicontract ExtensionsContract {}
 
     [contract(Microsoft.CommandPalette.Extensions.ExtensionsContract, 1)]
@@ -61,10 +61,15 @@ namespace Microsoft.CommandPalette.Extensions
         IIconInfo Icon{ get; };
     }
 
-    [contract(Microsoft.CommandPalette.Extensions.ExtensionsContract, 2)]
-    interface ICommand2 {
+    [contract(Microsoft.CommandPalette.Extensions.ExtensionsContract, 1)]
+    interface ICommand2 requires ICommand {
         Windows.Foundation.Collections.IPropertySet OtherProperties { get; };
     }
+
+    [contract(Microsoft.CommandPalette.Extensions.ExtensionsContract, 1)]
+    interface IHaveProperties {
+        Windows.Foundation.Collections.IPropertySet Properties{ get; };
+    }
     
     enum CommandResultKind {
         Dismiss,    // Reset the palette to the main page and dismiss