Apply minor fixes and improvements

agents/google_serper_search_agent.py

@@ -16,7 +16,7 @@ class GoogleSerperSearchAgent:
 
         nltk.download("punkt")
 
-    def run(self, query: str, limit_per_source: int = 5) -> tuple[pd.DataFrame, dict[str, float]]:
+    def run(self, query: str, limit_per_source: int = 3) -> tuple[pd.DataFrame, dict[str, float]]:
         results = []
         for site in self._sources:
             results.extend(self._search(query, site, limit_per_source))

agents/synthesis_agent.py

@@ -77,7 +77,10 @@ class SynthesisAgent:
 
             elements = [element[element.index(":") + 1 :].strip() for element in all_sub_themes[i].strip().split("\n") if element and ":" in element]
             for i in range(0, len(elements), 3):
-                section_b += f"###### {elements[i]}\n{elements[i + 1]}\n\n{elements[i + 2]}\n\n"
+                try:
+                    section_b += f"###### {elements[i]}\n{elements[i + 1]}\n\n{elements[i + 2]}\n\n"
+                except IndexError:
+                    pass
 
             section_b += f"###### References:\n" + "\n".join(references[theme["title"]]) + "\n\n\n"