diff --git a/lab_api.py b/lab_api.py
index af986cf..e561a40 100644
--- a/lab_api.py
+++ b/lab_api.py
@@ -1 +1,8 @@
-# This will be replaced by actual file content via execute_code
\ No newline at end of file
+#!/usr/bin/env python3
+"""
+Commander AI Lab — FastAPI Backend v3
+═════════════════════════════════════
+
+v3 adds:
+  POST /api/lab/import/url       — Import deck from Archidekt/EDHREC URL
+  POST /api/la
\ No newline at end of file