diff --git a/skills/gemini-web-generate/scripts/src/anti-ban.ts b/skills/gemini-web-generate/scripts/src/anti-ban.js
similarity index 74%
rename from skills/gemini-web-generate/scripts/src/anti-ban.ts
rename to skills/gemini-web-generate/scripts/src/anti-ban.js
index d3ef3bb..42bfc0c 100644
--- a/skills/gemini-web-generate/scripts/src/anti-ban.ts
+++ b/skills/gemini-web-generate/scripts/src/anti-ban.js
@@ -6,50 +6,41 @@
  * - Each wait adds 0-jitterMax seconds of random jitter
  */
 
-export interface AntiBanConfig {
-  baseDelay: number; // seconds
-  maxDelay: number;  // seconds
-  jitterMax: number; // seconds
-}
-
-const DEFAULT_CONFIG: AntiBanConfig = {
+const DEFAULT_CONFIG = {
   baseDelay: Number(process.env.GEMINI_BASE_DELAY) || 15,
   maxDelay: Number(process.env.GEMINI_MAX_DELAY) || 120,
   jitterMax: 5,
 };
 
 export class AntiBanController {
-  private currentDelay: number;
-  private config: AntiBanConfig;
-  retryCount = 0;
-  rateLimitEvents = 0;
-
-  constructor(config?: Partial<AntiBanConfig>) {
+  constructor(config) {
     this.config = { ...DEFAULT_CONFIG, ...config };
     this.currentDelay = this.config.baseDelay;
+    this.retryCount = 0;
+    this.rateLimitEvents = 0;
   }
 
   /** Call after a successful generation */
-  onSuccess(): void {
+  onSuccess() {
     this.currentDelay = Math.max(this.config.baseDelay * 0.5, this.currentDelay * 0.7);
   }
 
   /** Call after rate limit / timeout / error */
-  onRateLimit(): void {
+  onRateLimit() {
     this.rateLimitEvents++;
     this.currentDelay = Math.min(this.config.maxDelay, this.currentDelay * 2);
   }
 
   /** Wait between requests with jitter */
-  async wait(): Promise<void> {
+  async wait() {
     const jitter = Math.random() * this.config.jitterMax;
     const totalMs = (this.currentDelay + jitter) * 1000;
-    const log = (await import('./browser.js')).log;
+    const { log } = await import('./browser.js');
     log(`[anti-ban] waiting ${(totalMs / 1000).toFixed(1)}s (base=${this.currentDelay.toFixed(1)}s, jitter=${jitter.toFixed(1)}s)`);
     await new Promise((r) => setTimeout(r, totalMs));
   }
 
-  get delay(): number {
+  get delay() {
     return this.currentDelay;
   }