diff --git a/packages/services/agent-service/src/main.ts b/packages/services/agent-service/src/main.ts
index dbefd12..38f2309 100644
--- a/packages/services/agent-service/src/main.ts
+++ b/packages/services/agent-service/src/main.ts
@@ -17,8 +17,8 @@ process.on('uncaughtException', (error) => {
 
 async function bootstrap() {
   const app = await NestFactory.create<NestExpressApplication>(AgentModule);
-  // Increase body parser limit for base64 image attachments (default 100KB is too small)
-  app.useBodyParser('json', { limit: '10mb' });
+  // Claude API: max 32MB PDF + 5MB images; base64 adds ~33% overhead → 50mb covers all cases
+  app.useBodyParser('json', { limit: '50mb' });
   // Use raw WebSocket adapter instead of Socket.IO
   app.useWebSocketAdapter(new WsAdapter(app));
   const config = app.get(ConfigService);