diff --git a/src/vuln_analysis/tools/transitive_code_search.py b/src/vuln_analysis/tools/transitive_code_search.py
index c1beb334f..247f7516d 100644
--- a/src/vuln_analysis/tools/transitive_code_search.py
+++ b/src/vuln_analysis/tools/transitive_code_search.py
@@ -340,6 +340,16 @@ async def _arun(query: str) -> tuple:
                 git_repo, ref, worker_search_and_summarize,
                 store_key, validation_result,
             )
+        # When the initial function was not found in the package at all
+        # (empty call_hierarchy_list), add a distinct message so the agent
+        # doesn't confuse "function not found" with "function not reachable."
+        if not found_path and not path_summary:
+            function_name = validation_result.split(",", 1)[1].strip()
+            pkg = validation_result.split(",")[0].strip()
+            path_summary.append(
+                f"INFO: Function '{function_name}' was not found in package '{pkg}'. "
+                f"No reachability analysis was performed."
+            )
         package_name = validation_result.split(",")[0].strip()
         try:
             supported_packages, _ = await run_in_cpu_process(