diff --git a/tests/integration/test_parser_pilot_panel.py b/tests/integration/test_parser_pilot_panel.py
new file mode 100644
index 00000000..b5db4f75
--- /dev/null
+++ b/tests/integration/test_parser_pilot_panel.py
@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+from openamp_foundry.cli.main import build_parser
+
+
+def test_pilot_panel_parser_defaults_are_stable():
+    parser = build_parser()
+    args = parser.parse_args([
+        "pilot-panel",
+        "--ranked",
+        "ranked.jsonl",
+        "--out-csv",
+        "panel.csv",
+    ])
+
+    assert args.command == "pilot-panel"
+    assert args.ranked == "ranked.jsonl"
+    assert args.out_csv == "panel.csv"
+    assert args.out_md is None
+    assert args.n == 20
+    assert args.max_per_seed is None
+    assert args.similarity_threshold is None
+    assert args.min_per_structural_class == 0