diff --git a/tooling/planet-gen/gemma_naming.py b/tooling/planet-gen/gemma_naming.py
index a8fd60cc6..494d59369 100755
--- a/tooling/planet-gen/gemma_naming.py
+++ b/tooling/planet-gen/gemma_naming.py
@@ -28,8 +28,8 @@ Usage:
   tooling/planet-gen/gemma_naming.py --limit 5 --verbose    # smoke test
   tooling/planet-gen/gemma_naming.py --mock                 # mock-stdio.sh (no model)
   tooling/planet-gen/gemma_naming.py \\
-      --sr-voice /var/mnt/data/projects/settled-reach/main/server/sr-voice/target/release/sr-voice \\
-      --model /var/mnt/data/projects/settled-reach/main/server/models/gemma2.gguf
+      --sr-voice ~/Projects/settled-reach/binaries/sr-voice-tooling \\
+      --model ~/Projects/settled-reach/models/gemma-4.gguf
 
 Exit codes:
   0  pipeline completed (possibly with skipped bodies)
@@ -71,10 +71,16 @@ DB_PATH = REPO_ROOT / "server" / "data" / "systems.db"
 WIKI_SYSTEMS = REPO_ROOT / "wiki" / "star-systems"
 BLOCKLIST_PATH = TOOLING_DIR / "earth_blocklist.txt"
 
-# NOTE: --dump-prompts and name_feature() are vestigial from the Gemma 2
-# single-name pipeline. The live path uses _batch_fill() →
-# name_features_batch() from naming_core.py. The old code is retained
-# for reference but not called. TODO(#833): remove in a cleanup pass.
+# NOTE: The following are vestigial from the Gemma 2 single-name pipeline.
+# The live path uses _batch_fill() → name_features_batch() from naming_core.
+# TODO(#833): remove in a cleanup pass. Full dead-code island (~750 lines):
+#   - _CAPTURE_FILE, --dump-prompts argparse (here + main())
+#   - _build_prompt() and its few-shot example pools (~lines 500-929)
+#   - post_process(), is_placeholder(), _PLACEHOLDER_TOKENS, _LABEL_PREFIX,
+#     _MD_BOLD, _MD_UNDER (~lines 1040-1100)
+#   - is_blocked(), load_blocklist() (~lines 1105-1140)
+#   - fallback_name(), _FALLBACK_STEMS, _FALLBACK_SUFFIXES (~lines 1145-1205)
+#   - name_feature() with its retry loop and _is_duplicate (~lines 1530-1655)
 _CAPTURE_FILE = None  # vestigial — see note above
 
 # Default binary + model paths. The sr-voice binary is platform-specific
@@ -1596,16 +1602,19 @@ def name_feature(
         body_used.add(placeholder)
         return placeholder
 
+    # Pre-build lowercase shadow sets for O(1) dedup checks
+    used_lower = {n.lower() for n in used}
+    body_used_lower = {n.lower() for n in body_used}
+
     def _is_duplicate(candidate: str) -> bool:
         lc = candidate.lower()
-        return (
-            lc in (n.lower() for n in used)
-            or lc in (n.lower() for n in body_used)
-        )
+        return lc in used_lower or lc in body_used_lower
 
     def _commit_name(final: str) -> None:
         used.add(final)
+        used_lower.add(final.lower())
         body_used.add(final)
+        body_used_lower.add(final.lower())
 
     rejections: dict[str, int] = {"empty": 0, "placeholder": 0, "blocklist": 0,
                                    "dedup": 0, "error": 0}
@@ -2070,7 +2079,7 @@ def main():
         if model_path and not model_path.exists():
             print(
                 f"error: model not found at {model_path}\n"
-                "Either download the Gemma 2 GGUF or run with --mock.",
+                "Either download the model GGUF or run with --mock.",
                 file=sys.stderr,
             )
             sys.exit(1)