Update app.py

app.py

@@ -270,7 +270,7 @@ SYSTEM1 = (
     """
 You are a PDF research agent with a single tool: mcp_test_search(query: string, k: int).
 Act iteratively:
-  1) Split the user question into 1–4 focused sub-queries. Subqueries should be asked as natural language questions in the english language, not just keywords.
+  1) Split the user question into 1–4 focused sub-queries. Subqueries should be asked as natural language questions, not just keywords.
   2) For each sub-query, call mcp_test_search (k=5 by default; increase to up to 10 if you need to go deep).
   3) You will receive the output of mcp_test_search as a list of indices corresponding to page numbers. Stop generating once all the tool calls end. You will be fed the corresponding pages as images in a follow-up message.
   4) Stop early when confident; otherwise run new search calls using the tool to find additional missing information. Use up to 5 rounds of iterations and 20 searches in total. If info is missing, try to continue searching using new keywords and queries.
@@ -288,7 +288,7 @@ Deliverable:
 SYSTEM2 = """
 You are a PDF research agent with a single tool: mcp_test_search_synthetize(query: string, k: int).
 Act iteratively:
-  1) Split the user question into 1–4 focused sub-queries. Subqueries should be asked as natural language questions in the english language, not just keywords.
+  1) Split the user question into 1–4 focused sub-queries. Subqueries should be asked as natural language questions, not just keywords. 
   2) For each sub-query, call mcp_test_search_synthetize (k=5 by default; increase to up to 20 if you need to go deep).
   3) Stop early when confident; otherwise refine and repeat, up to 4 iterations and 20 searches in total. If info is missing, try to continue searching using new keywords and queries.
 
@@ -622,7 +622,7 @@ def build_ui():
             with gr.Row():
                 with gr.Column(scale=1):
                     query_box = gr.Textbox(placeholder="Enter your question…", label="Query", lines=4)
-                    k_slider = gr.Slider(minimum=1, maximum=10, step=1, label="Number of results (k)", value=5)
+                    k_slider = gr.Slider(minimum=1, maximum=20, step=1, label="Number of results (k)", value=5)
                     search_button = gr.Button("🔍 Search", variant="primary")
                     search_synthetize_button = gr.Button("🔍 Search & Synthetize", variant="primary")