diff --git a/src/appdistribution/yaml_helper.ts b/src/appdistribution/yaml_helper.ts
index 466467dafdc..eebaf432d91 100644
--- a/src/appdistribution/yaml_helper.ts
+++ b/src/appdistribution/yaml_helper.ts
@@ -31,7 +31,9 @@ function extractIdFromResourceName(name: string): string {
 function toYamlTestCases(testCases: TestCase[]): YamlTestCase[] {
   return testCases.map((testCase) => ({
     displayName: testCase.displayName,
-    id: extractIdFromResourceName(testCase.name!), // resource name is retured by server
+    ...(testCase.name && {
+      id: extractIdFromResourceName(testCase.name),
+    }),
     ...(testCase.prerequisiteTestCase && {
       prerequisiteTestCaseId: extractIdFromResourceName(testCase.prerequisiteTestCase),
     }),
diff --git a/src/mcp/tools/apptesting/index.ts b/src/mcp/tools/apptesting/index.ts
index e2fb94dc5b6..12d277bc987 100644
--- a/src/mcp/tools/apptesting/index.ts
+++ b/src/mcp/tools/apptesting/index.ts
@@ -1,9 +1,9 @@
 import { isEnabled } from "../../../experiments";
 import type { ServerTool } from "../../tool";
-import { check_status, run_tests } from "./tests";
+import { check_status, run_tests, testcase_export } from "./tests";
 
 export const apptestingTools: ServerTool[] = [];
 
 if (isEnabled("mcpalpha")) {
-  apptestingTools.push(...[run_tests, check_status]);
+  apptestingTools.push(...[run_tests, check_status, testcase_export]);
 }
diff --git a/src/mcp/tools/apptesting/tests.ts b/src/mcp/tools/apptesting/tests.ts
index 57548b2a0e7..8ac20675c09 100644
--- a/src/mcp/tools/apptesting/tests.ts
+++ b/src/mcp/tools/apptesting/tests.ts
@@ -1,6 +1,8 @@
 import { z } from "zod";
+import * as fs from "fs-extra";
 import { ApplicationIdSchema } from "../../../crashlytics/filters";
 import { upload, Distribution } from "../../../appdistribution/distribution";
+import { toYaml } from "../../../appdistribution/yaml_helper";
 
 import { tool } from "../../tool";
 import { toContent } from "../../util";
@@ -74,6 +76,32 @@ export const run_tests = tool(
   },
 );
 
+export const testcase_export = tool(
+  "apptesting",
+  {
+    name: "testcase_export",
+    description: "Use this to export a testcase to a file.",
+    inputSchema: z.object({
+      outputFile: z.string().describe("The path to the file."),
+      testCases: z.array(
+        z.object({
+          displayName: z.string(),
+          aiInstructions: z.object({
+            steps: z.array(AIStepSchema),
+          }),
+        }),
+      ),
+    }),
+    annotations: {
+      title: "Export testcases to a file.",
+      readOnlyHint: false,
+    },
+  },
+  async ({ outputFile, testCases }) => {
+    return toContent(fs.writeFileSync(outputFile, toYaml(testCases), "utf8"));
+  },
+);
+
 export const check_status = tool(
   "apptesting",
   {