diff --git a/src/commander_ai_lab/deck_builder/pipeline/__init__.py b/src/commander_ai_lab/deck_builder/pipeline/__init__.py
index a5b3304..53d68b0 100644
--- a/src/commander_ai_lab/deck_builder/pipeline/__init__.py
+++ b/src/commander_ai_lab/deck_builder/pipeline/__init__.py
@@ -1 +1,5 @@
-# pipeline subpackage
+"""Pipeline subpackage – exposes the public build_deck entry point."""
+
+from .build_deck import build_deck
+
+__all__ = ["build_deck"]