updated

agent.py

@@ -123,8 +123,8 @@ class AgentTools:
         class QueryHackerNews(BaseModel):
             query: str = Field(..., description="The user query.")
 
-        vec_factory = VectaraToolFactory(vectara_api_key=cfg.api_key, 
-                                        vectara_corpus_key=cfg.corpus_key)
+        vec_factory = VectaraToolFactory(vectara_api_key=self.cfg.api_key, 
+                                        vectara_corpus_key=self.cfg.corpus_key)
         summarizer = 'vectara-summary-ext-24-05-med-omni'
         ask_hackernews = vec_factory.create_rag_tool(
             tool_name = "ask_hackernews",