diff --git a/mc/1.20.5/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java b/mc/1.20.5/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
new file mode 100644
index 00000000..b2d46258
--- /dev/null
+++ b/mc/1.20.5/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
@@ -0,0 +1,76 @@
+package dev.u9g.minecraftdatagenerator.generators;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import dev.u9g.minecraftdatagenerator.util.DGU;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.material.Fluid;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TagsDataGenerator implements IDataGenerator {
+    
+    @Override
+    public String getDataName() {
+        return "tags";
+    }
+
+    @Override
+    public JsonElement generateDataJson() {
+        JsonObject root = new JsonObject();
+        
+        // Generate block tags
+        JsonObject blockTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.BLOCK), blockTags);
+        root.add("block", blockTags);
+        
+        // Generate item tags
+        JsonObject itemTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ITEM), itemTags);
+        root.add("item", itemTags);
+        
+        // Generate fluid tags
+        JsonObject fluidTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.FLUID), fluidTags);
+        root.add("fluid", fluidTags);
+        
+        // Generate entity type tags
+        JsonObject entityTypeTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ENTITY_TYPE), entityTypeTags);
+        root.add("entity_type", entityTypeTags);
+        
+        return root;
+    }
+    
+    private <T> void generateTagsForRegistry(Registry<T> registry, JsonObject output) {
+        registry.getTags().forEach(namedSet -> {
+            TagKey<T> tagKey = namedSet.key();
+            String tagName = tagKey.location().toString();
+            
+            JsonArray tagContents = new JsonArray();
+            
+            // Get all holders in this tag
+            List<Holder<T>> holders = namedSet.stream().collect(Collectors.toList());
+            
+            for (Holder<T> holder : holders) {
+                // Get the resource location of the entry
+                ResourceLocation location = registry.getKey(holder.value());
+                if (location != null) {
+                    tagContents.add(location.toString());
+                }
+            }
+            
+            output.add(tagName, tagContents);
+        });
+    }
+}
\ No newline at end of file
diff --git a/mc/1.21.3/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java b/mc/1.21.3/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
new file mode 100644
index 00000000..b2d46258
--- /dev/null
+++ b/mc/1.21.3/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
@@ -0,0 +1,76 @@
+package dev.u9g.minecraftdatagenerator.generators;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import dev.u9g.minecraftdatagenerator.util.DGU;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.material.Fluid;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TagsDataGenerator implements IDataGenerator {
+    
+    @Override
+    public String getDataName() {
+        return "tags";
+    }
+
+    @Override
+    public JsonElement generateDataJson() {
+        JsonObject root = new JsonObject();
+        
+        // Generate block tags
+        JsonObject blockTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.BLOCK), blockTags);
+        root.add("block", blockTags);
+        
+        // Generate item tags
+        JsonObject itemTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ITEM), itemTags);
+        root.add("item", itemTags);
+        
+        // Generate fluid tags
+        JsonObject fluidTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.FLUID), fluidTags);
+        root.add("fluid", fluidTags);
+        
+        // Generate entity type tags
+        JsonObject entityTypeTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ENTITY_TYPE), entityTypeTags);
+        root.add("entity_type", entityTypeTags);
+        
+        return root;
+    }
+    
+    private <T> void generateTagsForRegistry(Registry<T> registry, JsonObject output) {
+        registry.getTags().forEach(namedSet -> {
+            TagKey<T> tagKey = namedSet.key();
+            String tagName = tagKey.location().toString();
+            
+            JsonArray tagContents = new JsonArray();
+            
+            // Get all holders in this tag
+            List<Holder<T>> holders = namedSet.stream().collect(Collectors.toList());
+            
+            for (Holder<T> holder : holders) {
+                // Get the resource location of the entry
+                ResourceLocation location = registry.getKey(holder.value());
+                if (location != null) {
+                    tagContents.add(location.toString());
+                }
+            }
+            
+            output.add(tagName, tagContents);
+        });
+    }
+}
\ No newline at end of file
diff --git a/mc/1.21.5/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java b/mc/1.21.5/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
new file mode 100644
index 00000000..b2d46258
--- /dev/null
+++ b/mc/1.21.5/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
@@ -0,0 +1,76 @@
+package dev.u9g.minecraftdatagenerator.generators;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import dev.u9g.minecraftdatagenerator.util.DGU;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.material.Fluid;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TagsDataGenerator implements IDataGenerator {
+    
+    @Override
+    public String getDataName() {
+        return "tags";
+    }
+
+    @Override
+    public JsonElement generateDataJson() {
+        JsonObject root = new JsonObject();
+        
+        // Generate block tags
+        JsonObject blockTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.BLOCK), blockTags);
+        root.add("block", blockTags);
+        
+        // Generate item tags
+        JsonObject itemTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ITEM), itemTags);
+        root.add("item", itemTags);
+        
+        // Generate fluid tags
+        JsonObject fluidTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.FLUID), fluidTags);
+        root.add("fluid", fluidTags);
+        
+        // Generate entity type tags
+        JsonObject entityTypeTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ENTITY_TYPE), entityTypeTags);
+        root.add("entity_type", entityTypeTags);
+        
+        return root;
+    }
+    
+    private <T> void generateTagsForRegistry(Registry<T> registry, JsonObject output) {
+        registry.getTags().forEach(namedSet -> {
+            TagKey<T> tagKey = namedSet.key();
+            String tagName = tagKey.location().toString();
+            
+            JsonArray tagContents = new JsonArray();
+            
+            // Get all holders in this tag
+            List<Holder<T>> holders = namedSet.stream().collect(Collectors.toList());
+            
+            for (Holder<T> holder : holders) {
+                // Get the resource location of the entry
+                ResourceLocation location = registry.getKey(holder.value());
+                if (location != null) {
+                    tagContents.add(location.toString());
+                }
+            }
+            
+            output.add(tagName, tagContents);
+        });
+    }
+}
\ No newline at end of file
diff --git a/mc/1.21.6/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java b/mc/1.21.6/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
new file mode 100644
index 00000000..b2d46258
--- /dev/null
+++ b/mc/1.21.6/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
@@ -0,0 +1,76 @@
+package dev.u9g.minecraftdatagenerator.generators;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import dev.u9g.minecraftdatagenerator.util.DGU;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.material.Fluid;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TagsDataGenerator implements IDataGenerator {
+    
+    @Override
+    public String getDataName() {
+        return "tags";
+    }
+
+    @Override
+    public JsonElement generateDataJson() {
+        JsonObject root = new JsonObject();
+        
+        // Generate block tags
+        JsonObject blockTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.BLOCK), blockTags);
+        root.add("block", blockTags);
+        
+        // Generate item tags
+        JsonObject itemTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ITEM), itemTags);
+        root.add("item", itemTags);
+        
+        // Generate fluid tags
+        JsonObject fluidTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.FLUID), fluidTags);
+        root.add("fluid", fluidTags);
+        
+        // Generate entity type tags
+        JsonObject entityTypeTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ENTITY_TYPE), entityTypeTags);
+        root.add("entity_type", entityTypeTags);
+        
+        return root;
+    }
+    
+    private <T> void generateTagsForRegistry(Registry<T> registry, JsonObject output) {
+        registry.getTags().forEach(namedSet -> {
+            TagKey<T> tagKey = namedSet.key();
+            String tagName = tagKey.location().toString();
+            
+            JsonArray tagContents = new JsonArray();
+            
+            // Get all holders in this tag
+            List<Holder<T>> holders = namedSet.stream().collect(Collectors.toList());
+            
+            for (Holder<T> holder : holders) {
+                // Get the resource location of the entry
+                ResourceLocation location = registry.getKey(holder.value());
+                if (location != null) {
+                    tagContents.add(location.toString());
+                }
+            }
+            
+            output.add(tagName, tagContents);
+        });
+    }
+}
\ No newline at end of file
diff --git a/mc/1.21.7/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java b/mc/1.21.7/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
new file mode 100644
index 00000000..b2d46258
--- /dev/null
+++ b/mc/1.21.7/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
@@ -0,0 +1,76 @@
+package dev.u9g.minecraftdatagenerator.generators;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import dev.u9g.minecraftdatagenerator.util.DGU;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.material.Fluid;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TagsDataGenerator implements IDataGenerator {
+    
+    @Override
+    public String getDataName() {
+        return "tags";
+    }
+
+    @Override
+    public JsonElement generateDataJson() {
+        JsonObject root = new JsonObject();
+        
+        // Generate block tags
+        JsonObject blockTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.BLOCK), blockTags);
+        root.add("block", blockTags);
+        
+        // Generate item tags
+        JsonObject itemTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ITEM), itemTags);
+        root.add("item", itemTags);
+        
+        // Generate fluid tags
+        JsonObject fluidTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.FLUID), fluidTags);
+        root.add("fluid", fluidTags);
+        
+        // Generate entity type tags
+        JsonObject entityTypeTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ENTITY_TYPE), entityTypeTags);
+        root.add("entity_type", entityTypeTags);
+        
+        return root;
+    }
+    
+    private <T> void generateTagsForRegistry(Registry<T> registry, JsonObject output) {
+        registry.getTags().forEach(namedSet -> {
+            TagKey<T> tagKey = namedSet.key();
+            String tagName = tagKey.location().toString();
+            
+            JsonArray tagContents = new JsonArray();
+            
+            // Get all holders in this tag
+            List<Holder<T>> holders = namedSet.stream().collect(Collectors.toList());
+            
+            for (Holder<T> holder : holders) {
+                // Get the resource location of the entry
+                ResourceLocation location = registry.getKey(holder.value());
+                if (location != null) {
+                    tagContents.add(location.toString());
+                }
+            }
+            
+            output.add(tagName, tagContents);
+        });
+    }
+}
\ No newline at end of file
diff --git a/mc/1.21.8/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java b/mc/1.21.8/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
new file mode 100644
index 00000000..b2d46258
--- /dev/null
+++ b/mc/1.21.8/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
@@ -0,0 +1,76 @@
+package dev.u9g.minecraftdatagenerator.generators;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import dev.u9g.minecraftdatagenerator.util.DGU;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.material.Fluid;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TagsDataGenerator implements IDataGenerator {
+    
+    @Override
+    public String getDataName() {
+        return "tags";
+    }
+
+    @Override
+    public JsonElement generateDataJson() {
+        JsonObject root = new JsonObject();
+        
+        // Generate block tags
+        JsonObject blockTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.BLOCK), blockTags);
+        root.add("block", blockTags);
+        
+        // Generate item tags
+        JsonObject itemTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ITEM), itemTags);
+        root.add("item", itemTags);
+        
+        // Generate fluid tags
+        JsonObject fluidTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.FLUID), fluidTags);
+        root.add("fluid", fluidTags);
+        
+        // Generate entity type tags
+        JsonObject entityTypeTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ENTITY_TYPE), entityTypeTags);
+        root.add("entity_type", entityTypeTags);
+        
+        return root;
+    }
+    
+    private <T> void generateTagsForRegistry(Registry<T> registry, JsonObject output) {
+        registry.getTags().forEach(namedSet -> {
+            TagKey<T> tagKey = namedSet.key();
+            String tagName = tagKey.location().toString();
+            
+            JsonArray tagContents = new JsonArray();
+            
+            // Get all holders in this tag
+            List<Holder<T>> holders = namedSet.stream().collect(Collectors.toList());
+            
+            for (Holder<T> holder : holders) {
+                // Get the resource location of the entry
+                ResourceLocation location = registry.getKey(holder.value());
+                if (location != null) {
+                    tagContents.add(location.toString());
+                }
+            }
+            
+            output.add(tagName, tagContents);
+        });
+    }
+}
\ No newline at end of file
diff --git a/mc/1.21/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java b/mc/1.21/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
new file mode 100644
index 00000000..b2d46258
--- /dev/null
+++ b/mc/1.21/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
@@ -0,0 +1,76 @@
+package dev.u9g.minecraftdatagenerator.generators;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import dev.u9g.minecraftdatagenerator.util.DGU;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.material.Fluid;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TagsDataGenerator implements IDataGenerator {
+    
+    @Override
+    public String getDataName() {
+        return "tags";
+    }
+
+    @Override
+    public JsonElement generateDataJson() {
+        JsonObject root = new JsonObject();
+        
+        // Generate block tags
+        JsonObject blockTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.BLOCK), blockTags);
+        root.add("block", blockTags);
+        
+        // Generate item tags
+        JsonObject itemTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ITEM), itemTags);
+        root.add("item", itemTags);
+        
+        // Generate fluid tags
+        JsonObject fluidTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.FLUID), fluidTags);
+        root.add("fluid", fluidTags);
+        
+        // Generate entity type tags
+        JsonObject entityTypeTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ENTITY_TYPE), entityTypeTags);
+        root.add("entity_type", entityTypeTags);
+        
+        return root;
+    }
+    
+    private <T> void generateTagsForRegistry(Registry<T> registry, JsonObject output) {
+        registry.getTags().forEach(namedSet -> {
+            TagKey<T> tagKey = namedSet.key();
+            String tagName = tagKey.location().toString();
+            
+            JsonArray tagContents = new JsonArray();
+            
+            // Get all holders in this tag
+            List<Holder<T>> holders = namedSet.stream().collect(Collectors.toList());
+            
+            for (Holder<T> holder : holders) {
+                // Get the resource location of the entry
+                ResourceLocation location = registry.getKey(holder.value());
+                if (location != null) {
+                    tagContents.add(location.toString());
+                }
+            }
+            
+            output.add(tagName, tagContents);
+        });
+    }
+}
\ No newline at end of file
diff --git a/mc/22w19a/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java b/mc/22w19a/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
new file mode 100644
index 00000000..b2d46258
--- /dev/null
+++ b/mc/22w19a/src/main/java/dev/u9g/minecraftdatagenerator/generators/TagsDataGenerator.java
@@ -0,0 +1,76 @@
+package dev.u9g.minecraftdatagenerator.generators;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import dev.u9g.minecraftdatagenerator.util.DGU;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.material.Fluid;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TagsDataGenerator implements IDataGenerator {
+    
+    @Override
+    public String getDataName() {
+        return "tags";
+    }
+
+    @Override
+    public JsonElement generateDataJson() {
+        JsonObject root = new JsonObject();
+        
+        // Generate block tags
+        JsonObject blockTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.BLOCK), blockTags);
+        root.add("block", blockTags);
+        
+        // Generate item tags
+        JsonObject itemTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ITEM), itemTags);
+        root.add("item", itemTags);
+        
+        // Generate fluid tags
+        JsonObject fluidTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.FLUID), fluidTags);
+        root.add("fluid", fluidTags);
+        
+        // Generate entity type tags
+        JsonObject entityTypeTags = new JsonObject();
+        generateTagsForRegistry(DGU.getWorld().registryAccess().lookupOrThrow(Registries.ENTITY_TYPE), entityTypeTags);
+        root.add("entity_type", entityTypeTags);
+        
+        return root;
+    }
+    
+    private <T> void generateTagsForRegistry(Registry<T> registry, JsonObject output) {
+        registry.getTags().forEach(namedSet -> {
+            TagKey<T> tagKey = namedSet.key();
+            String tagName = tagKey.location().toString();
+            
+            JsonArray tagContents = new JsonArray();
+            
+            // Get all holders in this tag
+            List<Holder<T>> holders = namedSet.stream().collect(Collectors.toList());
+            
+            for (Holder<T> holder : holders) {
+                // Get the resource location of the entry
+                ResourceLocation location = registry.getKey(holder.value());
+                if (location != null) {
+                    tagContents.add(location.toString());
+                }
+            }
+            
+            output.add(tagName, tagContents);
+        });
+    }
+}
\ No newline at end of file