a

adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandDeveloper.java

@@ -94,7 +94,7 @@ public class CommandDeveloper implements DirectorExecutor {
 
     @Director(description = "Hash generated block output of a fixed area for determinism/identity testing", descriptionKey = "iris.director.commanddeveloper.director.hash_generated_block_output_fixed_area_determinism_identity_testing", origin = DirectorOrigin.BOTH)
     public void genhash(
-            @Param(description = "The world to hash", descriptionKey = "iris.director.commanddeveloper.param.world_hash", contextual = true)
+            @Param(description = "The world to hash", descriptionKey = "iris.director.commanddeveloper.param.world_hash", contextual = true, contextualOverride = true)
             World world,
             @Param(description = "Radius in chunks around the center", descriptionKey = "iris.director.commanddeveloper.param.radius_chunks_around_center", defaultValue = "4")
             int radius,
@@ -192,9 +192,9 @@ public class CommandDeveloper implements DirectorExecutor {
 
     @Director(description = "Update the pack of a world (UNSAFE!)", descriptionKey = "iris.director.commanddeveloper.director.update_pack_world_unsafe", name = "update-world", aliases = "^world")
     public void updateWorld(
-            @Param(description = "The world to update", descriptionKey = "iris.director.commanddeveloper.param.world_update", contextual = true)
+            @Param(description = "The world to update", descriptionKey = "iris.director.commanddeveloper.param.world_update", contextual = true, contextualOverride = true)
             World world,
-            @Param(description = "The pack to install into the world", descriptionKey = "iris.director.commanddeveloper.param.pack_install_into_world", contextual = true, aliases = "dimension")
+            @Param(description = "The pack to install into the world", descriptionKey = "iris.director.commanddeveloper.param.pack_install_into_world", contextual = true, contextualOverride = true, aliases = "dimension")
             IrisDimension pack,
             @Param(description = "Make sure to make a backup & read the warnings first!", descriptionKey = "iris.director.commanddeveloper.param.make_sure_make_backup_read_warnings_first", defaultValue = "false", aliases = "c")
             boolean confirm
@@ -390,7 +390,7 @@ public class CommandDeveloper implements DirectorExecutor {
 
     @Director(name = "goldenhash", aliases = {"gold"}, description = "Generate chunks into buffers (no world writes) and hash blocks+biomes; captures a golden file or verifies against an existing one. Deletes the world's entire mantle - use on disposable test worlds.", descriptionKey = "iris.director.commanddeveloper.director.generate_chunks_into_buffers_no_world_writes_hash_blocks_biomes_captures_golden", origin = DirectorOrigin.BOTH)
     public void goldenhash(
-            @Param(description = "The world to scan", descriptionKey = "iris.director.commanddeveloper.param.world_scan", contextual = true)
+            @Param(description = "The world to scan", descriptionKey = "iris.director.commanddeveloper.param.world_scan", contextual = true, contextualOverride = true)
             World world,
             @Param(name = "radius", description = "Radius in chunks around the center", descriptionKey = "iris.director.commanddeveloper.param.radius_chunks_around_center_2", defaultValue = "8")
             int radius,

adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandIris.java

@@ -862,10 +862,12 @@ public class CommandIris implements DirectorExecutor {
     public static class PackDimensionTypeHandler implements DirectorParameterHandler<String> {
         @Override
         public KList<String> getPossibilities() {
-            Set<String> options = new LinkedHashSet<>();
-            options.add("default");
+            return packDimensionOptions(Iris.instance.getDataFolder("packs"));
+        }
+
+        static KList<String> packDimensionOptions(File packsFolder) {
+            Set<String> options = new LinkedHashSet<>();
 
-            File packsFolder = Iris.instance.getDataFolder("packs");
             for (File pack : PackDirectoryResolver.listVisiblePackDirectories(packsFolder)) {
                 options.add(pack.getName());
 

adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandObject.java

@@ -610,7 +610,7 @@ public class CommandObject implements DirectorExecutor {
 
     @Director(description = "Save an object", descriptionKey = "iris.director.commandobject.director.save_object")
     public void save(
-            @Param(description = "The dimension to store the object in", descriptionKey = "iris.director.commandobject.param.dimension_store_object", contextual = true)
+            @Param(description = "The dimension to store the object in", descriptionKey = "iris.director.commandobject.param.dimension_store_object", contextual = true, contextualOverride = true)
             IrisDimension dimension,
             @Param(description = "The file to store it in, can use / for subfolders", descriptionKey = "iris.director.commandobject.param.file_store_it_can_use_subfolders")
             String name,

adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandPregen.java

@@ -42,7 +42,7 @@ public class CommandPregen implements DirectorExecutor {
     public void start(
             @Param(description = "The radius of the pregen in blocks", descriptionKey = "iris.director.commandpregen.param.radius_pregen_blocks", aliases = "size")
             int radius,
-            @Param(description = "The world to pregen", descriptionKey = "iris.director.commandpregen.param.world_pregen", contextual = true)
+            @Param(description = "The world to pregen", descriptionKey = "iris.director.commandpregen.param.world_pregen", contextual = true, contextualOverride = true)
             World world,
             @Param(aliases = "middle", description = "The center location of the pregen. Use \"me\" for your current location", descriptionKey = "iris.director.commandpregen.param.center_location_pregen_use_me_your_current_location", defaultValue = "0,0")
             Vector center,

adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandStudio.java

@@ -237,6 +237,7 @@ public class CommandStudio implements DirectorExecutor {
                     description = "Copy the contents of an existing project in your packs folder and use it as a template in this new project.", descriptionKey = "iris.director.commandstudio.param.copy_contents_existing_project_your_packs_folder_use_it_as_template_this",
                     defaultValue = "null",
                     contextual = true,
+                    contextualOverride = true,
                     customHandler = NullableDimensionHandler.class
             )
             IrisDimension template) {
@@ -249,7 +250,7 @@ public class CommandStudio implements DirectorExecutor {
 
     @Director(description = "Get the version of a pack", descriptionKey = "iris.director.commandstudio.director.get_version_pack")
     public void version(
-            @Param(defaultValue = "default", description = "The dimension get the version of", descriptionKey = "iris.director.commandstudio.param.dimension_get_version", aliases = "dim", contextual = true, customHandler = DimensionHandler.class)
+            @Param(defaultValue = "default", description = "The dimension get the version of", descriptionKey = "iris.director.commandstudio.param.dimension_get_version", aliases = "dim", contextual = true, contextualOverride = true, customHandler = DimensionHandler.class)
             IrisDimension dimension
     ) {
         sender().sendMessage(IrisLanguage.text(BukkitCommandMessagesExtended.COMMAND_STUDIO_PACK_HAS_VERSION, MessageArgument.untrusted("value", dimension.getName()), MessageArgument.untrusted("value2", dimension.getVersion())));
@@ -257,7 +258,7 @@ public class CommandStudio implements DirectorExecutor {
 
     @Director(description = "Open the noise explorer (External GUI)", descriptionKey = "iris.director.commandstudio.director.open_noise_explorer_external_gui", aliases = {"nmap"})
     public void noise(
-            @Param(description = "Optional pack generator to preview", descriptionKey = "iris.director.commandstudio.param.optional_pack_generator_preview", defaultValue = "null", contextual = true)
+            @Param(description = "Optional pack generator to preview", descriptionKey = "iris.director.commandstudio.param.optional_pack_generator_preview", defaultValue = "null", contextual = true, contextualOverride = true)
             IrisGenerator generator,
             @Param(description = "The seed to preview the generator with", descriptionKey = "iris.director.commandstudio.param.seed_preview_generator_with", defaultValue = "12345")
             long seed
@@ -414,7 +415,7 @@ public class CommandStudio implements DirectorExecutor {
 
     @Director(description = "Render a world map (External GUI)", descriptionKey = "iris.director.commandstudio.director.render_world_map_external_gui", aliases = "render")
     public void map(
-            @Param(name = "world", description = "The world to open the generator for", descriptionKey = "iris.director.commandstudio.param.world_open_generator", contextual = true)
+            @Param(name = "world", description = "The world to open the generator for", descriptionKey = "iris.director.commandstudio.param.world_open_generator", contextual = true, contextualOverride = true)
             World world
     ) {
         if (noGUI()) return;
@@ -430,7 +431,7 @@ public class CommandStudio implements DirectorExecutor {
 
     @Director(description = "Package a dimension into a compressed format", descriptionKey = "iris.director.commandstudio.director.package_dimension_into_compressed_format", aliases = "package")
     public void pkg(
-            @Param(name = "dimension", description = "The dimension pack to compress", descriptionKey = "iris.director.commandstudio.param.dimension_pack_compress", contextual = true, defaultValue = "default", customHandler = DimensionHandler.class)
+            @Param(name = "dimension", description = "The dimension pack to compress", descriptionKey = "iris.director.commandstudio.param.dimension_pack_compress", contextual = true, contextualOverride = true, defaultValue = "default", customHandler = DimensionHandler.class)
             IrisDimension dimension,
             @Param(name = "obfuscate", description = "Whether or not to obfuscate the pack", descriptionKey = "iris.director.commandstudio.param.whether_not_obfuscate_pack", defaultValue = "false")
             boolean obfuscate,
@@ -442,7 +443,7 @@ public class CommandStudio implements DirectorExecutor {
 
     @Director(description = "Profiles the performance of a dimension", descriptionKey = "iris.director.commandstudio.director.profiles_performance_dimension", origin = DirectorOrigin.PLAYER)
     public void profile(
-            @Param(description = "The dimension to profile", descriptionKey = "iris.director.commandstudio.param.dimension_profile", contextual = true, defaultValue = "default", customHandler = DimensionHandler.class)
+            @Param(description = "The dimension to profile", descriptionKey = "iris.director.commandstudio.param.dimension_profile", contextual = true, contextualOverride = true, defaultValue = "default", customHandler = DimensionHandler.class)
             IrisDimension dimension
     ) {
         // Todo: Make this more accurate
@@ -659,7 +660,7 @@ public class CommandStudio implements DirectorExecutor {
     public void spawn(
             @Param(description = "The entity to spawn", descriptionKey = "iris.director.commandstudio.param.entity_spawn")
             IrisEntity entity,
-            @Param(description = "The location to spawn the entity at", descriptionKey = "iris.director.commandstudio.param.location_spawn_entity_at", contextual = true)
+            @Param(description = "The location to spawn the entity at", descriptionKey = "iris.director.commandstudio.param.location_spawn_entity_at", contextual = true, contextualOverride = true)
             Vector location
     ) {
         VolmitSender commandSender = sender();
@@ -701,7 +702,7 @@ public class CommandStudio implements DirectorExecutor {
 
     @Director(description = "Update your dimension projects VSCode workspace", descriptionKey = "iris.director.commandstudio.director.update_your_dimension_projects_vscode_workspace")
     public void update(
-            @Param(description = "The dimension to update the workspace of", descriptionKey = "iris.director.commandstudio.param.dimension_update_workspace", contextual = true, defaultValue = "default", customHandler = DimensionHandler.class)
+            @Param(description = "The dimension to update the workspace of", descriptionKey = "iris.director.commandstudio.param.dimension_update_workspace", contextual = true, contextualOverride = true, defaultValue = "default", customHandler = DimensionHandler.class)
             IrisDimension dimension
     ) {
         sender().sendMessage(IrisLanguage.text(BukkitCommandMessagesExtended.COMMAND_STUDIO_UPDATING_CODE_WORKSPACE, MessageArgument.untrusted("value", dimension.getName())));

adapters/bukkit/plugin/src/test/java/art/arcane/iris/core/commands/CommandIrisPackDimensionTypeHandlerTest.java

@@ -1,10 +1,30 @@
 package art.arcane.iris.core.commands;
 
+import art.arcane.volmlib.util.collection.KList;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import java.io.File;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 
 public class CommandIrisPackDimensionTypeHandlerTest {
+    @Rule
+    public TemporaryFolder temporaryFolder = new TemporaryFolder();
+
+    @Test
+    public void emptyPackDirectoryDoesNotAdvertiseDefaultSentinel() throws Exception {
+        File packsFolder = temporaryFolder.newFolder("packs");
+
+        KList<String> options = CommandIris.PackDimensionTypeHandler.packDimensionOptions(packsFolder);
+
+        assertTrue(options.isEmpty());
+        assertFalse(options.contains("default"));
+    }
+
     @Test
     public void matchingPackAndDimensionUsesBarePackName() {
         assertEquals("overworld",

adapters/bukkit/plugin/src/test/java/art/arcane/iris/core/commands/CommandPregenCompletionContractTest.java

@@ -0,0 +1,48 @@
+package art.arcane.iris.core.commands;
+
+import art.arcane.volmlib.util.director.compat.DirectorEngineFactory;
+import art.arcane.volmlib.util.director.runtime.DirectorInvocation;
+import art.arcane.volmlib.util.director.runtime.DirectorRuntimeEngine;
+import art.arcane.volmlib.util.director.runtime.DirectorSender;
+import org.junit.Test;
+
+import java.util.List;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class CommandPregenCompletionContractTest {
+    @Test
+    public void startCompletesEveryConfigurableValueWithItsCanonicalKey() {
+        DirectorRuntimeEngine engine = DirectorEngineFactory.create(new CommandPregen());
+        DirectorInvocation invocation = new DirectorInvocation(new TestSender(), "iris", List.of("start", ""));
+
+        List<String> suggestions = engine.tabComplete(invocation);
+
+        assertTrue(suggestions.contains("radius="));
+        assertTrue(suggestions.contains("world="));
+        assertTrue(suggestions.contains("center="));
+        assertTrue(suggestions.contains("gui=false"));
+        assertTrue(suggestions.contains("gui=true"));
+        assertTrue(suggestions.contains("serial=false"));
+        assertTrue(suggestions.contains("serial=true"));
+        assertFalse(suggestions.contains("true"));
+        assertFalse(suggestions.contains("false"));
+    }
+
+    private static final class TestSender implements DirectorSender {
+        @Override
+        public String getName() {
+            return "test";
+        }
+
+        @Override
+        public boolean isPlayer() {
+            return false;
+        }
+
+        @Override
+        public void sendMessage(String message) {
+        }
+    }
+}

core/src/main/java/art/arcane/iris/engine/platform/BukkitChunkGenerator.java

@@ -208,7 +208,9 @@ public class BukkitChunkGenerator extends ChunkGenerator implements PlatformChun
         }
         spawnChunks.complete(INMS.get().getSpawnChunkCount(world));
         BukkitPlatform.volmitPlugin().unregisterListener(this);
+        if (shouldPersistWorldRegistration(studio)) {
             IrisWorlds.get().put(WorldIdentity.serialize(world), dimensionKey);
+        }
         return true;
     }
 
@@ -310,6 +312,10 @@ public class BukkitChunkGenerator extends ChunkGenerator implements PlatformChun
                 : IrisEngine.InitializationMode.STUDIO;
     }
 
+    static boolean shouldPersistWorldRegistration(boolean studio) {
+        return !studio;
+    }
+
     @NotNull
     @Override
     public EngineTarget getTarget() {

core/src/test/java/art/arcane/iris/engine/platform/BukkitChunkGeneratorInitializationModeTest.java

@@ -49,4 +49,10 @@ public class BukkitChunkGeneratorInitializationModeTest {
         assertFalse(BukkitChunkGenerator.shouldRunStudioHotload(true, false, true));
         assertTrue(BukkitChunkGenerator.shouldRunStudioHotload(true, false, false));
     }
+
+    @Test
+    public void transientStudioWorldsAreNotPersisted() {
+        assertFalse(BukkitChunkGenerator.shouldPersistWorldRegistration(true));
+        assertTrue(BukkitChunkGenerator.shouldPersistWorldRegistration(false));
+    }
 }