diff --git a/core/src/agentforge_core/runtime/checkpointer.py b/core/src/agentforge_core/runtime/checkpointer.py
new file mode 100644
index 0000000..f23733d
--- /dev/null
+++ b/core/src/agentforge_core/runtime/checkpointer.py
@@ -0,0 +1,20 @@
+"""Wrapper sobre SqliteSaver de LangGraph. Centraliza el path y el ciclo de vida."""
+
+from __future__ import annotations
+
+import sqlite3
+from pathlib import Path
+
+from langgraph.checkpoint.sqlite import SqliteSaver
+
+
+def build_checkpointer(data_dir: Path) -> SqliteSaver:
+    """Devuelve un SqliteSaver apuntando a ``data_dir/checkpoints.sqlite``.
+
+    La base se crea si no existe. La conexión usa ``check_same_thread=False``
+    porque LangGraph ejecuta nodos en hilos del executor.
+    """
+    data_dir.mkdir(parents=True, exist_ok=True)
+    db_path = data_dir / "checkpoints.sqlite"
+    conn = sqlite3.connect(str(db_path), check_same_thread=False)
+    return SqliteSaver(conn)