diff --git a/HellionChat/Infrastructure/Hosting/InitHostedServices.cs b/HellionChat/Infrastructure/Hosting/InitHostedServices.cs
index 9ffb54f..a957127 100644
--- a/HellionChat/Infrastructure/Hosting/InitHostedServices.cs
+++ b/HellionChat/Infrastructure/Hosting/InitHostedServices.cs
@@ -1,7 +1,9 @@
+using Dalamud.Game.Addon.Lifecycle;
 using Dalamud.Plugin;
 using HellionChat.Integrations;
 using HellionChat.Ipc;
 using HellionChat.Themes;
+using HellionChat.Ui.Components;
 using Microsoft.Extensions.Hosting;
 
 namespace HellionChat.Infrastructure.Hosting;
@@ -101,3 +103,41 @@ internal sealed class FailedTellNotifierInitHostedService(FailedTellNotifier not
 
     public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
 }
+
+internal sealed class PayloadHandlerInitHostedService(
+    PayloadHandler payloadHandler,
+    MessageList messageList
+) : IHostedService
+{
+    public async Task StartAsync(CancellationToken cancellationToken)
+    {
+        // §6.2 cycle-resolution: both singletons exist by the time HostedServices
+        // run, so this is the first safe point to wire the setter.
+        messageList.AttachPayloadHandler(payloadHandler);
+
+        // IAddonLifecycle thread-affinity is not explicitly documented; wrap is
+        // defensive insurance — mirrors the window-registration RunOnFrameworkThread
+        // pattern established in PluginLifecycle.cs.
+        await Plugin.Framework.RunOnFrameworkThread(() =>
+        {
+            Plugin.AddonLifecycle.RegisterListener(
+                AddonEvent.PostUpdate,
+                "ItemDetail",
+                payloadHandler.MoveTooltip
+            );
+            Plugin.AddonLifecycle.RegisterListener(
+                AddonEvent.PostUpdate,
+                "ActionDetail",
+                payloadHandler.MoveTooltip
+            );
+        });
+    }
+
+    public async Task StopAsync(CancellationToken cancellationToken)
+    {
+        await Plugin.Framework.RunOnFrameworkThread(() =>
+        {
+            Plugin.AddonLifecycle.UnregisterListener(payloadHandler.MoveTooltip);
+        });
+    }
+}
diff --git a/HellionChat/PluginHostFactory.cs b/HellionChat/PluginHostFactory.cs
index f74f191..c74bc5d 100644
--- a/HellionChat/PluginHostFactory.cs
+++ b/HellionChat/PluginHostFactory.cs
@@ -312,6 +312,10 @@ internal static class PluginHostFactory
                 sp.GetRequiredService<Integrations.FailedTellNotifier>()
             )
         );
+        services.AddHostedService(sp => new Infrastructure.Hosting.PayloadHandlerInitHostedService(
+            sp.GetRequiredService<PayloadHandler>(),
+            sp.GetRequiredService<Ui.Components.MessageList>()
+        ));
     }
 }