From d3afd90f79104f93c52a82cbac124abb577f5ce2 Mon Sep 17 00:00:00 2001
From: Giulio Starace <giulio.starace@gmail.com>
Date: Mon, 27 Apr 2026 16:09:54 +0000
Subject: [PATCH] Tighten UNSYNC_MULTISTREAM: flag when syncs < streams (not
 syncs*2 < streams)

---
 kernelguard.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernelguard.py b/kernelguard.py
index f086847..8ee3783 100644
--- a/kernelguard.py
+++ b/kernelguard.py
@@ -1303,8 +1303,8 @@ def detect_unsync_multistream(code: str | SubmissionFacts) -> list[dict]:
                 "high",
                 f"Python: {py_stream_creates} stream creates, no sync/wait primitives",
             ))
-        elif py_sync_calls * 2 < py_stream_creates:
-            # Significantly under-synchronized: fewer than half as many syncs as streams
+        elif py_sync_calls < py_stream_creates:
+            # Under-synchronized: fewer sync/wait calls than stream creates
             candidates.append((
                 "medium",
                 f"Python: {py_stream_creates} stream creates, only {py_sync_calls} sync/wait calls",