feat: Add GA4 tracking for Gemini CLI extension

src/mcp/index.ts

@@ -88,9 +88,14 @@
   ): Promise<void> {
     // wait until ready or until 2s has elapsed
     if (!this.clientInfo) await timeoutFallback(this.ready(), null, 2000);
-    const clientInfoParams = {
+    const clientInfoParams: {
+      mcp_client_name: string;
+      mcp_client_version: string;
+      gemini_cli_extension: string;
+    } = {
       mcp_client_name: this.clientInfo?.name || "<unknown-client>",
       mcp_client_version: this.clientInfo?.version || "<unknown-version>",
+      gemini_cli_extension: process.env.IS_GEMINI_CLI_EXTENSION ? "true" : "false",
     };
     return trackGA4(event, { ...params, ...clientInfoParams });
   }
@@ -136,12 +141,12 @@
       return {};
     });
 
     this.detectProjectRoot();
     this.detectActiveFeatures();
   }
 
   /** Wait until initialization has finished. */
   ready() {
     if (this._ready) return Promise.resolve();
     return new Promise((resolve, reject) => {
       this._readyPromises.push({ resolve: resolve as () => void, reject });
@@ -152,19 +157,19 @@
     return this.clientInfo?.name ?? (isFirebaseStudio() ? "Firebase Studio" : "<unknown-client>");
   }
 
   private get clientConfigKey() {
     return `mcp.clientConfigs.${this.clientName}:${this.startupRoot || process.cwd()}`;
   }
 
   getStoredClientConfig(): ClientConfig {
     return configstore.get(this.clientConfigKey) || {};
   }
 
   updateStoredClientConfig(update: Partial<ClientConfig>) {
     const config = configstore.get(this.clientConfigKey) || {};
     const newConfig = { ...config, ...update };
     configstore.set(this.clientConfigKey, newConfig);
     return newConfig;
   }
 
   async detectProjectRoot(): Promise<string> {
@@ -264,7 +269,7 @@
     return getProjectId(await this.resolveOptions());
   }
 
   async getAuthenticatedUser(skipAutoAuth: boolean = false): Promise<string | null> {
     try {
       this.log("debug", `calling requireAuth`);
       const email = await requireAuth(await this.resolveOptions(), skipAutoAuth);