diff --git a/tools/push3-evolution/evolve.sh b/tools/push3-evolution/evolve.sh
index 5d26df4..856954b 100755
--- a/tools/push3-evolution/evolve.sh
+++ b/tools/push3-evolution/evolve.sh
@@ -861,11 +861,18 @@ if not new_items:
 # ── 5. Separate pinned (hand-written) from evolved; top-100 cap on evolved only
 #
 # NOTE: raw fitness values are only comparable within the same evaluation run.
-# Entries with fitness_flags='token_value_inflation' (or other flags) are ranked
+# Entries whose fitness_flags contain any flag in ZERO_RATED_FLAGS are ranked
 # as fitness=0 so that inflated scores do not bias pool admission or eviction.
+#
+# ZERO_RATED_FLAGS: canonical set of flag strings that force effective_fitness=0.
+# Add new inflation/distortion flags here; no other code change is required.
+ZERO_RATED_FLAGS = {
+    'token_value_inflation',
+}
+
 def effective_fitness(entry):
     flags = entry.get('fitness_flags') or ''
-    if 'token_value_inflation' in flags:
+    if any(flag in flags for flag in ZERO_RATED_FLAGS):
         return 0
     return int(entry.get('fitness') or 0)