diff --git a/.greptile/rules.md b/.greptile/rules.md
index f6b4ff9cf8c..6dc0d1a259d 100644
--- a/.greptile/rules.md
+++ b/.greptile/rules.md
@@ -10,3 +10,5 @@ Each rule's YAML frontmatter declares its scope with repository-relative
 do not apply a channel rule to unrelated subsystems. Keep the policy in the
 referenced file as the source of truth rather than maintaining a separate copy
 in dashboard instructions.
+
+Do not add package.json scripts for new utilities, checks, benchmarks, or specialized tests.