feat: solution for 6a02e23da6fe2e4ac16acf65

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+49 -66
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@@ -18,75 +18,58 @@ llm = ChatOpenAI(
temperature=0.7, temperature=0.7,
) )
# ---------- Embeddings ---------- # ---------- Vector Store ----------
embeddings = OllamaEmbeddings(model="nomic-embed-text")
# ---------- Qdrant ----------
client = QdrantClient(":memory:") client = QdrantClient(":memory:")
collection_name = "knowledge_base" client.create_collection(
collection_name="knowledge_base",
try: vectors_config=VectorParams(size=1024, distance=Distance.COSINE),
client.get_collection(collection_name) )
except Exception: embeddings = OllamaEmbeddings(model="nomic-embed-text")
# Use a typical embedding size for nomic-embed-text (768)
client.create_collection(
collection_name=collection_name,
vectors_config=VectorParams(size=768, distance=Distance.COSINE),
)
vector_store = QdrantVectorStore( vector_store = QdrantVectorStore(
client=client, client=client,
collection_name=collection_name, collection_name="knowledge_base",
embedding=embeddings, embedding=embeddings,
) )
# ---------- Text splitter ---------- # ---------- Text Splitter ----------
splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=50) splitter = RecursiveCharacterTextSplitter(chunk_size=1000, chunk_overlap=100)
# ---------- Tools ---------- # ---------- Tools ----------
@tool @tool
def search_knowledge_base(query: str, max_results: int = 5) -> str: def add_to_knowledge_base(content: str, title: str) -> str:
"""Search the knowledge base for relevant documents.""" """Add a document to the knowledge base."""
docs_with_score = vector_store.similarity_search_with_score(query, k=max_results) docs = splitter.split_text(content)
if not docs_with_score: documents = [Document(page_content=c, metadata={"title": title}) for c in docs]
return "No results found." vector_store.add_documents(documents)
return "\n".join( return f"Added {len(docs)} chunks under title '{title}'."
f"{i+1}. {doc.page_content[:200]}..."
for i, (doc, _) in enumerate(docs_with_score)
)
@tool @tool
def add_to_knowledge_base(content: str, title: str = "") -> str: def search_knowledge_base(query: str, max_results: int = 5) -> str:
"""Add a new document to the knowledge base.""" """Search the knowledge base for relevant information."""
chunks = splitter.split_text(content) results = vector_store.similarity_search_with_score(query, k=max_results)
docs = [Document(page_content=c, metadata={"title": title}) for c in chunks] if not results:
vector_store.add_documents(docs) return "No relevant documents found."
return f"Added {len(chunks)} chunks under title '{title}'." out_lines = []
for doc, score in results:
title = doc.metadata.get("title", "Untitled")
out_lines.append(f"[{score:.2f}] {title}: {doc.page_content[:200]}...")
return "\n".join(out_lines)
# ---------- Agent ---------- # ---------- Agent ----------
system_prompt = """ system_prompt = """
You are an assistant that can search and add information to a knowledge base. You are an assistant with access to a knowledge base.
Use the tools `search_knowledge_base` and `add_to_knowledge_base` as needed. Use the tools `add_to_knowledge_base` and `search_knowledge_base` as needed.
Respond concisely. If you need more info, ask the user.
""" """
agent = create_agent( agent = create_agent(
model=llm, model=llm,
tools=[search_knowledge_base, add_to_knowledge_base], tools=[add_to_knowledge_base, search_knowledge_base],
system_prompt=system_prompt, system_prompt=system_prompt,
) )
# ---------- CLI ---------- # ---------- CLI ----------
def load_directory(path: str):
"""Load all text files from a directory into the knowledge base."""
for root, _, files in os.walk(path):
for file in files:
if file.lower().endswith(".txt"):
with open(os.path.join(root, file), encoding="utf-8") as f:
content = f.read()
add_to_knowledge_base(content=content, title=file)
def main(): def main():
print("Welcome to the RAG agent. Commands: /add <file>, /search <query>, /load <dir>, /quit") print("RAG Agent CLI. Commands: /add <title> <content>, /search <query>, /quit")
while True: while True:
try: try:
inp = input("> ").strip() inp = input("> ").strip()
@@ -94,29 +77,29 @@ def main():
break break
if not inp: if not inp:
continue continue
if inp.lower() in ("/quit", "exit"): if inp.lower() in ("exit", "quit", "/quit"):
print("Goodbye!") print("Bye!")
break break
if inp.startswith("/add "): if inp.startswith("/add "):
_, file_path = inp.split(maxsplit=1) parts = inp[5:].split(None, 1)
try: if len(parts) != 2:
with open(file_path, encoding="utf-8") as f: print("Usage: /add <title> <content>")
content = f.read() continue
print(add_to_knowledge_base(content=content, title=os.path.basename(file_path))) title, content = parts
except Exception as e: res = add_to_knowledge_base(content=content, title=title)
print(f"Error adding file: {e}") print(res)
elif inp.startswith("/search "): elif inp.startswith("/search "):
_, query = inp.split(maxsplit=1) query = inp[8:].strip()
print(search_knowledge_base(query=query)) if not query:
elif inp.startswith("/load "): print("Usage: /search <query>")
_, dir_path = inp.split(maxsplit=1) continue
load_directory(dir_path) res = search_knowledge_base(query=query, max_results=5)
print(f"Loaded documents from {dir_path}") print(res)
else: else:
# Regular conversation # Regular chat with agent
response = agent.invoke({"messages": [{"role": "human", "content": inp}]}) result = agent.invoke({"messages": [{"role": "human", "content": inp}]})
msg = response["messages"][-1] ai_msg = result["messages"][-1]
print(msg.content) print(ai_msg.content)
if __name__ == "__main__": if __name__ == "__main__":
main() main()