diff --git a/src/scribe/services/knowledge.py b/src/scribe/services/knowledge.py
index 8373044..6fdfa43 100644
--- a/src/scribe/services/knowledge.py
+++ b/src/scribe/services/knowledge.py
@@ -120,6 +120,12 @@ def _location_clause(parts: dict[str, str]):
 # the verdict's: jsonpath compares the two fields within the row, so this stays
 # one index-served predicate rather than a post-filter that would make the
 # pagination total a lie.
+#
+# Same two-dialect discipline as the location filter above, and the same hazard:
+# THE TWO MUST CHANGE TOGETHER. tests/test_snippet_drift_check.py is the guard —
+# it walks both dialects over the same cases, including the one that motivated
+# `attention` existing (an ok verdict whose code_sha has gone stale, which is
+# neither `drifted` nor `unverified` yet plainly needs looking at).
 
 def verification_matches(data: dict | None, value: str) -> bool:
     """Python dialect of the verification predicate.