fix

src/streamlit_app.py

@@ -162,12 +162,8 @@ def build_agent():
     _ensure_data_files()
 
     tool_sets = []
-    for filename, (_, display_name, long_desc) in DOC_SOURCES.items():
+    for filename, (_, display_name, _long_desc) in DOC_SOURCES.items():
         tools = _build_tools_for_doc(DATA_DIR / filename, display_name)
-        # enrich tool metadata descriptions so the retriever can pick PI vs brochure correctly
-        for t in tools:
-            t.metadata["doc_label"] = display_name
-            t.metadata["doc_description"] = long_desc
         tool_sets.extend(tools)
 
     obj_index = ObjectIndex.from_objects(tool_sets, index_cls=VectorStoreIndex)