diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index b7546e0..f18eca1 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -1,3 +1,10 @@
+// Bundle audit (March 2026):
+// 1. kokoro-js worker chunk: 2,208 KB — lazy, loaded only inside TTS Web Worker
+// 2. FightViewer chunk: 487 KB — lazy, includes kaplay + FightScene + sounds + sprites
+// 3. Shared vendor chunk: 281 KB — Vue internals, nostr-tools shared code
+// 4. Main entry chunk: 119 KB — Vue runtime + router
+// 5. FightPage chunk: 39 KB — lazy, fight page UI
+// kokoro-js is NOT in main bundle. kaplay is tree-shaken into FightViewer only.
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import tailwindcss from '@tailwindcss/vite'