diff --git a/rag_tools.py b/rag_tools.py
index 7ec0017..d5df0f1 100644
--- a/rag_tools.py
+++ b/rag_tools.py
@@ -1,48 +1,35 @@
-"""
-Tools for the RAG agent.
+"""Tools for the RAG agent.
+
+Two tools are exposed via the ``@tool`` decorator:
+* ``search_knowledge_base`` – semantic search in the Qdrant vector store.
+* ``add_to_knowledge_base`` – add a document to the vector store.
 """
 
-from typing import List
+from typing import List, Dict
 
 from langchain.tools import tool
-from qdrant_store import search, add_document
+
+from .vector_store import add_document, search_text
+
+# ---------------------------------------------------------------------------
+# Tool definitions
+# ---------------------------------------------------------------------------
 
 @tool("search_knowledge_base")
 async def search_knowledge_base(query: str, max_results: int = 5) -> List[str]:
-    """Perform semantic search in the knowledge base.
+    """Return the top *max_results* relevant chunks for *query*.
 
-    Parameters
-    ----------
-    query: str
-        Search query.
-    max_results: int
-        Number of results to return.
-
-    Returns
-    -------
-    List[str]
-        List of retrieved document snippets.
+    The function is asynchronous because LangChain expects async tools when
+    the agent runs in an async context. The underlying vector store calls
+    are synchronous, so we simply wrap the result.
     """
-    docs = search(query, max_results)
-    return [doc.page_content for doc in docs]
+    return search_text(query, k=max_results)
 
 @tool("add_to_knowledge_base")
 async def add_to_knowledge_base(content: str, title: str) -> str:
-    """Add a new document to the knowledge base.
+    """Add *content* under *title* to the knowledge base.
 
-    Parameters
-    ----------
-    content: str
-        Full text of the document.
-    title: str
-        Title or identifier for the document.
-
-    Returns
-    -------
-    str
-        Confirmation message.
+    Returns a confirmation string.
     """
-    add_document(content, title)
-    return f"Document '{title}' added successfully."
-
-__all__ = ["search_knowledge_base", "add_to_knowledge_base"]
+    add_document(title, content)
+    return f"Document '{title}' added to knowledge base."
\ No newline at end of file