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diff --git a/java/dagger/android/internal/proguard/KspProguardProcessor.java b/java/dagger/android/internal/proguard/KspProguardProcessor.java
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+/*
+ * Copyright (C) 2024 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dagger.android.internal.proguard;
+
+import androidx.room.compiler.processing.XProcessingEnv;
+import androidx.room.compiler.processing.XProcessingEnvConfig;
+import androidx.room.compiler.processing.XProcessingStep;
+import androidx.room.compiler.processing.ksp.KspBasicAnnotationProcessor;
+import com.google.auto.service.AutoService;
+import com.google.common.collect.ImmutableList;
+import com.google.devtools.ksp.processing.SymbolProcessor;
+import com.google.devtools.ksp.processing.SymbolProcessorEnvironment;
+import com.google.devtools.ksp.processing.SymbolProcessorProvider;
+
+/**
+ * An annotation processor to generate dagger-android's specific proguard needs. This is only
+ * intended to run over the dagger-android project itself, as the alternative is to create an
+ * intermediary java_library for proguard rules to be consumed by the project.
+ *
+ * <p>Basic structure looks like this:
+ *
+ * <pre><code>
+ *   resources/META-INF/com.android.tools/proguard/dagger-android.pro
+ *   resources/META-INF/com.android.tools/r8/dagger-android.pro
+ *   resources/META-INF/proguard/dagger-android.pro
+ * </code></pre>
+ */
+public final class KspProguardProcessor extends KspBasicAnnotationProcessor {
+  private static final XProcessingEnvConfig PROCESSING_ENV_CONFIG =
+      new XProcessingEnvConfig.Builder().build();
+  private XProcessingEnv env;
+
+  private KspProguardProcessor(SymbolProcessorEnvironment symbolProcessorEnvironment) {
+    super(symbolProcessorEnvironment, PROCESSING_ENV_CONFIG);
+  }
+
+  @Override
+  public void initialize(XProcessingEnv env) {
+    this.env = env;
+  }
+
+  @Override
+  public Iterable<XProcessingStep> processingSteps() {
+    return ImmutableList.of(new ProguardProcessingStep(env));
+  }
+
+  /** Provides the {@link KspProguardProcessor}. */
+  @AutoService(SymbolProcessorProvider.class)
+  public static final class Provider implements SymbolProcessorProvider {
+    @Override
+    public SymbolProcessor create(SymbolProcessorEnvironment symbolProcessorEnvironment) {
+      return new KspProguardProcessor(symbolProcessorEnvironment);
+    }
+  }
+}