diff --git a/Anvil/Plugin.cs b/Anvil/Plugin.cs
index 8a29e43..24d4871 100644
--- a/Anvil/Plugin.cs
+++ b/Anvil/Plugin.cs
@@ -1,15 +1,19 @@
 // Anvil plugin entry. Implements IAsyncDalamudPlugin so Dalamud awaits
 // LoadAsync before considering the plugin loaded. The constructor wires
 // the generic-host DI container synchronously - Dalamud's IoC fills the
-// five Dalamud services as ctor args (Lightless pattern), the bundle is
-// handed to PluginHostFactory, and PluginLifecycle takes it from there.
+// services as ctor args (Lightless pattern), the bundle is handed to
+// PluginHostFactory, and PluginLifecycle takes it from there.
 //
-// v0.1.0 is intentionally thin. Module 02+ extends PluginHostFactory's
-// services collection; this file does not need to change.
+// v0.1.0 ships the RecipeData layer only. The OpenConfigUi / OpenMainUi
+// callbacks fire toast notifications so Dalamud's plugin validator stops
+// complaining about missing UI callbacks while module 08 (the actual
+// windows) is still under construction. The callbacks will be replaced
+// once the SettingsWindow + MainWindow land.
 
 using System;
 using System.Threading;
 using System.Threading.Tasks;
+using Dalamud.Interface.ImGuiNotification;
 using Dalamud.Plugin;
 using Dalamud.Plugin.Services;
 using Microsoft.Extensions.DependencyInjection;
@@ -18,6 +22,8 @@ namespace Anvil;
 
 public sealed class Plugin : IAsyncDalamudPlugin
 {
+    private readonly IDalamudPluginInterface _pluginInterface;
+    private readonly INotificationManager _notification;
     private readonly PluginLifecycle _lifecycle;
 
     public Plugin(
@@ -25,20 +31,30 @@ public sealed class Plugin : IAsyncDalamudPlugin
         IPluginLog pluginLog,
         IDataManager dataManager,
         IFramework framework,
-        ISelfTestRegistry selfTestRegistry
+        ISelfTestRegistry selfTestRegistry,
+        INotificationManager notification
     )
     {
+        _pluginInterface = pluginInterface;
+        _notification = notification;
+
         var dependencies = new PluginHostDependencies(
             pluginInterface,
             pluginLog,
             dataManager,
             framework,
-            selfTestRegistry
+            selfTestRegistry,
+            notification
         );
 
         var host = PluginHostFactory.Build(this, dependencies);
         _lifecycle = host.Services.GetRequiredService<PluginLifecycle>();
         _lifecycle.Host = host;
+
+        // Stub UI callbacks. The validator accepts any subscription;
+        // the toasts are user-facing placeholders until module 08 lands.
+        _pluginInterface.UiBuilder.OpenConfigUi += OpenConfigUiStub;
+        _pluginInterface.UiBuilder.OpenMainUi += OpenMainUiStub;
     }
 
     public Task LoadAsync(CancellationToken cancellationToken) =>
@@ -46,6 +62,34 @@ public sealed class Plugin : IAsyncDalamudPlugin
 
     public async ValueTask DisposeAsync()
     {
+        _pluginInterface.UiBuilder.OpenConfigUi -= OpenConfigUiStub;
+        _pluginInterface.UiBuilder.OpenMainUi -= OpenMainUiStub;
         await _lifecycle.DisposeAsync().ConfigureAwait(false);
     }
+
+    private void OpenConfigUiStub()
+    {
+        _notification.AddNotification(
+            new Notification
+            {
+                Title = "Anvil",
+                Content =
+                    "Settings window arrives with module 08 (UI). Track the roadmap on the Hellion Forge Gitea repo.",
+                Type = NotificationType.Info,
+            }
+        );
+    }
+
+    private void OpenMainUiStub()
+    {
+        _notification.AddNotification(
+            new Notification
+            {
+                Title = "Anvil",
+                Content =
+                    "Main window arrives with module 08 (UI). v0.1.0 ships the RecipeData layer only.",
+                Type = NotificationType.Info,
+            }
+        );
+    }
 }
diff --git a/Anvil/PluginHostDependencies.cs b/Anvil/PluginHostDependencies.cs
index a8c0924..11b461b 100644
--- a/Anvil/PluginHostDependencies.cs
+++ b/Anvil/PluginHostDependencies.cs
@@ -13,5 +13,6 @@ internal sealed record PluginHostDependencies(
     IPluginLog PluginLog,
     IDataManager DataManager,
     IFramework Framework,
-    ISelfTestRegistry SelfTestRegistry
+    ISelfTestRegistry SelfTestRegistry,
+    INotificationManager Notification
 );
diff --git a/Anvil/PluginHostFactory.cs b/Anvil/PluginHostFactory.cs
index 216d6e1..93437aa 100644
--- a/Anvil/PluginHostFactory.cs
+++ b/Anvil/PluginHostFactory.cs
@@ -53,6 +53,7 @@ internal static class PluginHostFactory
         services.AddSingleton(dependencies.DataManager);
         services.AddSingleton(dependencies.Framework);
         services.AddSingleton(dependencies.SelfTestRegistry);
+        services.AddSingleton(dependencies.Notification);
 
         // Self-reference. Lets services that genuinely need the plugin
         // back-ref (later modules; v0.1.0 has none) reach it without a