diff --git a/genkit-tools/cli/src/commands/init-ai-tools/ai-tools/studio.ts b/genkit-tools/cli/src/commands/init-ai-tools/ai-tools/studio.ts
new file mode 100644
index 0000000000..500818a1d7
--- /dev/null
+++ b/genkit-tools/cli/src/commands/init-ai-tools/ai-tools/studio.ts
@@ -0,0 +1,42 @@
+/**
+ * Copyright 2025 Google LLC
+ *
+ * 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.
+ */
+
+import { AIToolConfigResult, AIToolModule, InitConfigOptions } from '../types';
+import { getGenkitContext, updateContentInPlace } from '../utils';
+
+const RULES_PATH = '.idx/airules.md';
+
+export const studio: AIToolModule = {
+  name: 'studio',
+  displayName: 'Firebase Studio',
+
+  /**
+   * Configures Firebase Studio (Project IDX) with Genkit context.
+   *
+   * - .idx/airules.md: Updates Firebase section only (preserves user content)
+   *
+   * Interactive prompts are shown since this file may contain user-defined
+   * AI rules and instructions that we must preserve. We only manage the
+   * Genkit-specific section marked with our XML tags.
+   */
+  async configure(options?: InitConfigOptions): Promise<AIToolConfigResult> {
+    const files: AIToolConfigResult['files'] = [];
+    const content = getGenkitContext();
+    const { updated } = await updateContentInPlace(RULES_PATH, content);
+    files.push({ path: RULES_PATH, updated });
+    return { files };
+  },
+};
diff --git a/genkit-tools/cli/src/commands/init-ai-tools/command.ts b/genkit-tools/cli/src/commands/init-ai-tools/command.ts
index 5d1071938a..400e00c694 100644
--- a/genkit-tools/cli/src/commands/init-ai-tools/command.ts
+++ b/genkit-tools/cli/src/commands/init-ai-tools/command.ts
@@ -22,12 +22,14 @@ import { claude } from './ai-tools/claude';
 import { cursor } from './ai-tools/cursor';
 import { gemini } from './ai-tools/gemini';
 import { generic } from './ai-tools/generic';
+import { studio } from './ai-tools/studio';
 import { AIToolChoice, AIToolModule, InitConfigOptions } from './types';
 
 /** Set of all supported AI tools that can be configured (incl. a generic
  * configuration) */
 export const AI_TOOLS: Record<string, AIToolModule> = {
   gemini,
+  studio,
   claude,
   cursor,
   generic,
diff --git a/genkit-tools/cli/src/commands/init-ai-tools/types.ts b/genkit-tools/cli/src/commands/init-ai-tools/types.ts
index 18ab730205..64ec5b3f60 100644
--- a/genkit-tools/cli/src/commands/init-ai-tools/types.ts
+++ b/genkit-tools/cli/src/commands/init-ai-tools/types.ts
@@ -26,7 +26,7 @@ export interface AIToolConfigResult {
 /** `init:ai-tools` config options. */
 export interface InitConfigOptions {
   // yes (non-interactive) mode.
-  yesMode: boolean;
+  yesMode?: boolean;
 }
 
 /** Interface for supported AI tools */