diff --git a/codemap/core/__init__.py b/codemap/core/__init__.py
new file mode 100644
index 0000000..a80aca5
--- /dev/null
+++ b/codemap/core/__init__.py
@@ -0,0 +1,4 @@
+from codemap.core.graph_builder import GraphBuilder
+from codemap.core.mermaid_generator import MermaidGenerator
+
+__all__ = ["GraphBuilder", "MermaidGenerator"]