chore(release): v0.21.0-preview.1

Co-authored-by: Shreya Keshive <shreyakeshive@google.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+  "version": "0.21.0-preview.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@google/gemini-cli",
-      "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+      "version": "0.21.0-preview.1",
       "workspaces": [
         "packages/*"
       ],
@@ -17692,7 +17692,7 @@
     },
     "packages/a2a-server": {
       "name": "@google/gemini-cli-a2a-server",
-      "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+      "version": "0.21.0-preview.1",
       "dependencies": {
         "@a2a-js/sdk": "^0.3.2",
         "@google-cloud/storage": "^7.16.0",
@@ -18003,7 +18003,7 @@
     },
     "packages/cli": {
       "name": "@google/gemini-cli",
-      "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+      "version": "0.21.0-preview.1",
       "dependencies": {
         "@google/gemini-cli-core": "file:../core",
         "@google/genai": "1.30.0",
@@ -18104,7 +18104,7 @@
     },
     "packages/core": {
       "name": "@google/gemini-cli-core",
-      "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+      "version": "0.21.0-preview.1",
       "dependencies": {
         "@google-cloud/logging": "^11.2.1",
         "@google-cloud/opentelemetry-cloud-monitoring-exporter": "^0.21.0",
@@ -18248,7 +18248,7 @@
     },
     "packages/test-utils": {
       "name": "@google/gemini-cli-test-utils",
-      "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+      "version": "0.21.0-preview.1",
       "license": "Apache-2.0",
       "devDependencies": {
         "typescript": "^5.3.3"
@@ -18259,7 +18259,7 @@
     },
     "packages/vscode-ide-companion": {
       "name": "gemini-cli-vscode-ide-companion",
-      "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+      "version": "0.21.0-preview.1",
       "license": "LICENSE",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.23.0",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+  "version": "0.21.0-preview.1",
   "engines": {
     "node": ">=20.0.0"
   },
@@ -14,7 +14,7 @@
     "url": "git+https://github.com/google-gemini/gemini-cli.git"
   },
   "config": {
-    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.21.0-nightly.20251209.ec9a8c7a7"
+    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.21.0-preview.1"
   },
   "scripts": {
     "start": "cross-env NODE_ENV=development node scripts/start.js",

packages/a2a-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-a2a-server",
-  "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+  "version": "0.21.0-preview.1",
   "description": "Gemini CLI A2A Server",
   "repository": {
     "type": "git",

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+  "version": "0.21.0-preview.1",
   "description": "Gemini CLI",
   "repository": {
     "type": "git",
@@ -25,7 +25,7 @@
     "dist"
   ],
   "config": {
-    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.21.0-nightly.20251209.ec9a8c7a7"
+    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.21.0-preview.1"
   },
   "dependencies": {
     "@google/gemini-cli-core": "file:../core",

packages/core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-core",
-  "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+  "version": "0.21.0-preview.1",
   "description": "Gemini CLI Core",
   "repository": {
     "type": "git",

packages/core/src/ide/ide-client.test.ts

@@ -59,6 +59,7 @@ describe('IdeClient', () => {
     delete process.env['GEMINI_CLI_IDE_SERVER_PORT'];
     delete process.env['GEMINI_CLI_IDE_SERVER_STDIO_COMMAND'];
     delete process.env['GEMINI_CLI_IDE_SERVER_STDIO_ARGS'];
+    delete process.env['GEMINI_CLI_IDE_AUTH_TOKEN'];
 
     // Mock dependencies
     vi.spyOn(process, 'cwd').mockReturnValue('/test/workspace/sub-dir');
@@ -923,5 +924,35 @@ describe('IdeClient', () => {
         IDEConnectionStatus.Connected,
       );
     });
+
+    it('should connect with an auth token from environment variable if config file is missing', async () => {
+      vi.mocked(fs.promises.readFile).mockRejectedValue(
+        new Error('File not found'),
+      );
+      (
+        vi.mocked(fs.promises.readdir) as Mock<
+          (path: fs.PathLike) => Promise<string[]>
+        >
+      ).mockResolvedValue([]);
+      process.env['GEMINI_CLI_IDE_SERVER_PORT'] = '9090';
+      process.env['GEMINI_CLI_IDE_AUTH_TOKEN'] = 'env-auth-token';
+
+      const ideClient = await IdeClient.getInstance();
+      await ideClient.connect();
+
+      expect(StreamableHTTPClientTransport).toHaveBeenCalledWith(
+        new URL('http://127.0.0.1:9090/mcp'),
+        expect.objectContaining({
+          requestInit: {
+            headers: {
+              Authorization: 'Bearer env-auth-token',
+            },
+          },
+        }),
+      );
+      expect(ideClient.getConnectionStatus().status).toBe(
+        IDEConnectionStatus.Connected,
+      );
+    });
   });
 });

packages/core/src/ide/ide-client.ts

@@ -151,9 +151,10 @@ export class IdeClient {
     this.setState(IDEConnectionStatus.Connecting);
 
     this.connectionConfig = await this.getConnectionConfigFromFile();
-    if (this.connectionConfig?.authToken) {
-      this.authToken = this.connectionConfig.authToken;
-    }
+    this.authToken =
+      this.connectionConfig?.authToken ??
+      process.env['GEMINI_CLI_IDE_AUTH_TOKEN'];
+
     const workspacePath =
       this.connectionConfig?.workspacePath ??
       process.env['GEMINI_CLI_IDE_WORKSPACE_PATH'];

packages/test-utils/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-test-utils",
-  "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+  "version": "0.21.0-preview.1",
   "private": true,
   "main": "src/index.ts",
   "license": "Apache-2.0",

packages/vscode-ide-companion/package.json

@@ -2,7 +2,7 @@
   "name": "gemini-cli-vscode-ide-companion",
   "displayName": "Gemini CLI Companion",
   "description": "Enable Gemini CLI with direct access to your IDE workspace.",
-  "version": "0.21.0-nightly.20251209.ec9a8c7a7",
+  "version": "0.21.0-preview.1",
   "publisher": "google",
   "icon": "assets/icon.png",
   "repository": {