diff --git a/init_client.py b/init_client.py
new file mode 100644
index 0000000..bdaf678
--- /dev/null
+++ b/init_client.py
@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+"""Initialization client - loads documents from a directory into the vector store."""
+
+import os
+from typing import List
+
+from langchain_core.documents import Document
+from langchain_community.documenloaders import TextLoader
+
+ from vector_store import get_vector_store, add_documents_to_store
+
+
+def load_documents_from_dir(dir_path: str) -> List[Document]:
+    """Load all .txt files from a directory as LangChain Documents.
+
+    Args:
+        dir_path: Path to directory containing .txt files.
+
+    Returns:
+        List of Document objects.
+    """
+    documents = []
+    for filename in os.listdir(dir_path):
+        if filename.endswith(".txt"):
+            file_path = os.path.join(dir_path, filename)
+            loader = TextLoader(file_path, encoding="utf-8")
+            docs = loader.load()
+            # Add title metadata from filename
+            title = os.path.splitext(filename)[0]
+            for doc in docs:
+                doc.metadata["title"] = title
+            documents.extend(docs)
+    return documents
+
+
+def init_knowledge_base(dir_path: str) -> int:
+    """Initialize the knowledge base by loading documents from a directory.
+
+    Args:
+        dir_path: Path to directory containing .txt files.
+
+    Returns:
+        Number of chunks added to the store.
+    """
+    store = get_vector_store()
+    documents = load_documents_from_dir(dir_path)
+
+    if not documents:
+        print(f"No .txt files found in {dir_path}")
+        return 0
+
+    ids = add_documents_to_store(store, documents)
+    print(f"Loaded {len(documents)} document(s) into knowledge base ({len(ids)} chunks).")
+    return len(ids)
+
+
+if __name__ == "__main__":
+    import sys
+
+    if len(sys.argv) < 2:
+        print("Usage: python init_client.py <directory_path>")
+        sys.exit(1)
+
+    dir_path = sys.argv[1]
+    if not os.path.isdir(dir_path):
+        print(f"Error: {dir_path} is not a directory")
+        sys.exit(1)
+
+    init_knowledge_base(dir_path)