diff --git a/Plant3D2026/P_Rec_Annot/src/PRecAnnot.Plant3D2026/FirstLimitedApplyAutomation.cs b/Plant3D2026/P_Rec_Annot/src/PRecAnnot.Plant3D2026/FirstLimitedApplyAutomation.cs
index 79f5b50..6164b18 100644
--- a/Plant3D2026/P_Rec_Annot/src/PRecAnnot.Plant3D2026/FirstLimitedApplyAutomation.cs
+++ b/Plant3D2026/P_Rec_Annot/src/PRecAnnot.Plant3D2026/FirstLimitedApplyAutomation.cs
@@ -287,9 +287,10 @@ internal sealed class FirstLimitedApplyAutomationCoordinator
         RequestControlledExit(safeToExitNow);
     }
 
-    // AutoCAD's direct Application.Quit can leave a startup-script host alive.
-    // Dispatching the native QUIT command from the next quiescent Idle cycle
-    // preserves normal command shutdown semantics.
+    // The managed Application.Quit call can leave a startup-script host alive
+    // when it is invoked from a CommandEnded callback. Queue AutoCAD's native
+    // QUIT command instead; the command processor runs it after the current
+    // public PXP-OA command has fully returned and discards every open drawing.
     private void RequestControlledExit(bool idleSafe = false)
     {
         if (exitQueued) return;
@@ -315,21 +316,14 @@ internal sealed class FirstLimitedApplyAutomationCoordinator
         {
             if (exitHandlerSubscribed) AcadApplication.Idle -= OnExitIdle;
             exitHandlerSubscribed = false;
-            // Do not close a cached automation document and then reuse it. Resolve
-            // the currently-live document only at the final quiescent callback.
-            // Only documents opened by this coordinator may be closed. Keep no
-            // document reference after closing it; DocumentDestroyed can run
-            // immediately as part of CloseAndDiscard.
-            foreach (var opened in automationOpenedDocuments.ToArray().Reverse())
-            {
-                transitions.Add("AutomationDocumentCloseRequested");
-                opened.CloseAndDiscard();
-            }
+            if (document is null) throw new InvalidOperationException("AUTOMATION_EXIT_DOCUMENT_UNAVAILABLE");
+            transitions.Add("NativeQuitCommandQueued");
+            // Persist the exit boundary before handing control back to AutoCAD;
+            // process termination can otherwise prevent the final evidence flush.
+            TryWriteEvidence(state == CoordinatorState.Completed, null);
+            document.SendStringToExecute("_.QUIT _N ", true, false, false);
+            document = null;
             automationOpenedDocuments.Clear();
-            // Application.Quit alone leaves the script host alive. Close the
-            // live document first, then request normal application shutdown.
-            transitions.Add("ApplicationQuitRequested");
-            AcadApplication.Quit();
         }
         catch (System.Exception exception)
         {
diff --git a/Plant3D2026/P_Rec_Annot/tests/PRecAnnot.Core.Tests/FoundationTests.cs b/Plant3D2026/P_Rec_Annot/tests/PRecAnnot.Core.Tests/FoundationTests.cs
index b42f776..5c4d0e7 100644
--- a/Plant3D2026/P_Rec_Annot/tests/PRecAnnot.Core.Tests/FoundationTests.cs
+++ b/Plant3D2026/P_Rec_Annot/tests/PRecAnnot.Core.Tests/FoundationTests.cs
@@ -82,14 +82,14 @@ public sealed class FoundationTests
         Assert.Contains("PostStartupReady", source);
     }
 
-    [Fact] public void AutomationControlledExit_ClosesOnlyAutomationDocumentsThenQuits()
+    [Fact] public void AutomationControlledExit_QueuesNativeQuitAfterPublicCommand()
     {
         var source = File.ReadAllText(Path.Combine(ProjectRoot, "src", "PRecAnnot.Plant3D2026", "FirstLimitedApplyAutomation.cs"));
         Assert.Contains("RequestControlledExit", source);
         Assert.Contains("AcadApplication.Idle += OnExitIdle", source);
-        Assert.Contains("automationOpenedDocuments", source);
-        Assert.Contains("opened.CloseAndDiscard();", source);
-        Assert.Contains("AcadApplication.Quit();", source);
+        Assert.Contains("NativeQuitCommandQueued", source);
+        Assert.Contains("document.SendStringToExecute(\"_.QUIT _N \", true, false, false);", source);
+        Assert.DoesNotContain("AcadApplication.Quit();", source);
     }
 
     [Fact] public void Callback_AfterDocumentDestroyed_DoesNotAccessDocument()
@@ -103,7 +103,7 @@ public sealed class FoundationTests
     {
         var source = File.ReadAllText(Path.Combine(ProjectRoot, "src", "PRecAnnot.Plant3D2026", "FirstLimitedApplyAutomation.cs"));
         Assert.DoesNotContain("MdiActiveDocument", source[source.IndexOf("private void DispatchNativeQuit", StringComparison.Ordinal)..]);
-        Assert.Contains("AcadApplication.Quit();", source);
+        Assert.Contains("AUTOMATION_EXIT_DOCUMENT_UNAVAILABLE", source);
     }
 
     [Fact] public void TerminalState_IgnoresFurtherCallbacks()
@@ -143,8 +143,8 @@ public sealed class FoundationTests
         var source = File.ReadAllText(Path.Combine(ProjectRoot, "src", "PRecAnnot.Plant3D2026", "FirstLimitedApplyAutomation.cs"));
         var controlledExit = source[source.IndexOf("private void RequestControlledExit", StringComparison.Ordinal)..];
         Assert.DoesNotContain("document.CloseAndDiscard", controlledExit);
-        Assert.Contains("Resolve", controlledExit, StringComparison.OrdinalIgnoreCase);
         Assert.DoesNotContain("MdiActiveDocument", controlledExit);
+        Assert.Contains("document = null;", controlledExit);
     }
 
     [Fact] public void FinalCommandCompletion_UsesItsQuiescentExitBoundary()