diff --git a/scripts/agent-evals/package.json b/scripts/agent-evals/package.json
index 1900a9d92a5..f4bbe8df723 100644
--- a/scripts/agent-evals/package.json
+++ b/scripts/agent-evals/package.json
@@ -6,7 +6,7 @@
   "scripts": {
     "build": "tsc",
     "test": "npm run build && mocha 'lib/**/*.spec.js' --reporter spec",
-    "test:dev": "SKIP_REBUILD=true npm run test"
+    "test:dev": "SKIP_REBUILD=true COPY_FIREBASE_CLI_CONFIG=true npm run test"
   },
   "keywords": [],
   "author": "",
diff --git a/scripts/agent-evals/src/runner/index.ts b/scripts/agent-evals/src/runner/index.ts
index 0494e24a481..0a3919af6c1 100644
--- a/scripts/agent-evals/src/runner/index.ts
+++ b/scripts/agent-evals/src/runner/index.ts
@@ -1,6 +1,7 @@
 import path from "node:path";
+import os from "node:os";
 import { randomBytes } from "node:crypto";
-import { mkdirSync } from "node:fs";
+import { mkdirSync, copyFileSync } from "node:fs";
 import { AgentTestRunner } from "./agent-test-runner.js";
 import { GeminiCliRunner } from "./gemini-cli-runner.js";
 import { buildFirebaseCli } from "./setup.js";
@@ -13,6 +14,10 @@ export * from "./agent-test-runner.js";
 
 const dateName = new Date().toISOString().replace("T", "_").replace(/:/g, "-").replace(".", "-");
 
+const FIREBASE_CONFIG_FILENAME = "firebase-tools.json";
+const CONFIGSTORE_DIR = ".config/configstore";
+const HOME_CONFIGSTORE_DIR = path.resolve(path.join(os.homedir(), CONFIGSTORE_DIR));
+
 export async function setupEnvironment(): Promise<void> {
   await buildFirebaseCli();
   await buildTemplates();
@@ -40,6 +45,13 @@ export async function startAgentTest(
   if (options?.templateName) {
     copyTemplate(options.templateName, dirs.runDir);
   }
+  if (process.env.COPY_FIREBASE_CLI_CONFIG) {
+    const toDir = path.resolve(dirs.userDir, CONFIGSTORE_DIR);
+    console.log(
+      `Copying Firebase CLI configs from ${HOME_CONFIGSTORE_DIR} to \n${toDir} so the test can use your auth credentials`,
+    );
+    copyFirebaseCliConfigstore(HOME_CONFIGSTORE_DIR, toDir);
+  }
 
   const run = new GeminiCliRunner(testName, dirs, options?.toolMocks || []);
   await run.waitForReadyPrompt();
@@ -65,3 +77,22 @@ function createRunDirectory(testName: string): RunDirectories {
 
   return { testDir, runDir, userDir };
 }
+
+function copyFirebaseCliConfigstore(fromDir: string, toDir: string) {
+  mkdirSync(toDir, { recursive: true });
+  try {
+    copyFileSync(
+      path.join(fromDir, FIREBASE_CONFIG_FILENAME),
+      path.join(toDir, FIREBASE_CONFIG_FILENAME),
+    );
+  } catch (e: any) {
+    if (e.code === "ENOENT") {
+      const sourceFile = path.join(fromDir, FIREBASE_CONFIG_FILENAME);
+      console.warn(
+        `Firebase CLI config file not found at ${sourceFile}. Skipping copy. If you want to use your local Firebase login, please log in with the Firebase CLI.`,
+      );
+    } else {
+      throw e;
+    }
+  }
+}