diff --git a/scripts/audit_weak_types.py b/scripts/audit_weak_types.py
index 0a7bf201..55fc0c4f 100644
--- a/scripts/audit_weak_types.py
+++ b/scripts/audit_weak_types.py
@@ -202,6 +202,8 @@ def main() -> int:
  parser.add_argument("--json", action="store_true", help="Output JSON instead of human-readable report")
  parser.add_argument("--top", type=int, default=10, help="Show top N files by weak count (default: 10)")
  parser.add_argument("--verbose", action="store_true", help="Show every finding inline (default: top N per file)")
+ parser.add_argument("--strict", action="store_true", help="CI mode; exits 1 if current count exceeds the baseline file")
+ parser.add_argument("--baseline", default="scripts/audit_weak_types.baseline.json", help="Baseline file for --strict mode (default: scripts/audit_weak_types.baseline.json)")
  args = parser.parse_args()
 
  src = Path(args.src)
@@ -214,6 +216,25 @@ def main() -> int:
  reports: list[FileReport] = [audit_file(f) for f in files]
  reports = [r for r in reports if r.weak_count > 0 or r.positive_count > 0]
 
+ if args.strict:
+  baseline_path = Path(args.baseline)
+  if not baseline_path.exists():
+   print(f"ERROR: baseline file not found: {baseline_path}", file=sys.stderr)
+   return 1
+  try:
+   with baseline_path.open("r", encoding="utf-8") as f:
+    baseline_data = json.load(f)
+   baseline_count = baseline_data.get("total_weak", 0)
+  except (OSError, json.JSONDecodeError) as e:
+   print(f"ERROR: could not read baseline {baseline_path}: {e}", file=sys.stderr)
+   return 1
+  current_count = sum(r.weak_count for r in reports)
+  if current_count > baseline_count:
+   print(f"STRICT: {current_count} weak sites found, baseline is {baseline_count} (regression of {current_count - baseline_count})", file=sys.stderr)
+   return 1
+  print(f"STRICT OK: {current_count} weak sites <= baseline {baseline_count}")
+  return 0
+
  if args.json:
   output = {
    "src_dir": str(src),