diff --git a/src/AcDream.Core/World/SceneryGenerator.cs b/src/AcDream.Core/World/SceneryGenerator.cs
index af0be17..aca7239 100644
--- a/src/AcDream.Core/World/SceneryGenerator.cs
+++ b/src/AcDream.Core/World/SceneryGenerator.cs
@@ -39,14 +39,13 @@ public static class SceneryGenerator
     private const float LandblockSize = 192.0f;  // 8 cells * 24 units
 
     /// <summary>
-    /// Phase N.1 feature flag — when set to "1", scenery placement uses
-    /// WorldBuilder's <c>SceneryHelpers</c> + <c>TerrainUtils</c> instead of
-    /// our hand-ported algorithms. Default off until visual verification at
-    /// landblock 0xA9B1 confirms behavior. See
-    /// <c>docs/superpowers/specs/2026-05-08-phase-n1-scenery-via-wb-helpers-design.md</c>.
+    /// Phase N.1: scenery placement uses WorldBuilder's <c>SceneryHelpers</c>
+    /// + <c>TerrainUtils</c> by default. Set <c>ACDREAM_USE_WB_SCENERY=0</c>
+    /// to restore the legacy in-line algorithms (escape hatch — to be deleted
+    /// in Task 8 once we have a session of green visuals).
     /// </summary>
     internal static readonly bool UseWbScenery =
-        System.Environment.GetEnvironmentVariable("ACDREAM_USE_WB_SCENERY") == "1";
+        System.Environment.GetEnvironmentVariable("ACDREAM_USE_WB_SCENERY") != "0";
 
     public readonly record struct ScenerySpawn(
         uint ObjectId,        // GfxObj or Setup id