Update config.yaml

config.yaml

@@ -1,40 +1,35 @@
 # ========================================
 # Self-Service KB Assistant — Configuration
-# All values here are read by app.py at startup.
 # ========================================
 
 client:
   name: "Self-Service KB Assistant"
-  description: "Semantic search over a knowledge base, with LLM-powered answer generation."
-  theme_color: "blue"
 
 kb:
   directory: "./kb"
+  index_directory: "./.cache/faiss"
 
 models:
   embedding: "sentence-transformers/all-MiniLM-L6-v2"
+  qa: "google/flan-t5-small"
 
 chunking:
-  chunk_size: 500       # Target characters per chunk (breaks on sentence boundaries)
-  overlap: 100          # Characters of overlap carried into the next chunk
+  chunk_size: 500
+  overlap: 100
 
 retrieval:
-  top_k: 3             # Number of chunks to retrieve per query
-  min_similarity: 0.3  # Minimum cosine similarity score to include a result
-  context_chars: 1500  # Max characters of context passed to the LLM
+  top_k: 5             # chunks retrieved by FAISS per query
+  min_similarity: 0.25 # minimum cosine similarity to include a chunk
+  max_sentences: 6     # top sentences passed to the QA model after re-ranking
 
-llm:
-  model: "TinyLlama/TinyLlama-1.1B-Chat-v1.0"
-  max_new_tokens: 256
+messages:
+  welcome: "Ask me anything about the documents in the knowledge base!"
+  no_answer: "I couldn't find anything relevant to your question in the knowledge base."
 
 quick_actions:
-  - label: "📚 Getting Started"
+  - label: "📚 KB Best Practices"
     query: "What makes a good knowledge base article?"
-  - label: "🤖 KB Assistant Use Cases"
-    query: "How could a KB assistant help agents?"
-  - label: "📈 Self-Service Benefits"
-    query: "Why is self-service important for customer support?"
-
-messages:
-  welcome: "👋 Ask me anything you'd normally search for in a knowledge base."
-  no_answer: "❌ I couldn't find anything relevant in the knowledge base for this query."
+  - label: "🤖 Agent Use Cases"
+    query: "How could a KB assistant help support agents?"
+  - label: "📈 Self-Service"
+    query: "Why is self-service important for customer support?"