diff --git a/tests/integration/test_cli_generate_parser.py b/tests/integration/test_cli_generate_parser.py
new file mode 100644
index 00000000..169c0e88
--- /dev/null
+++ b/tests/integration/test_cli_generate_parser.py
@@ -0,0 +1,21 @@
+from __future__ import annotations
+
+from openamp_foundry.cli.main import build_parser
+
+
+def test_generate_batch_parser_defaults_are_stable():
+    parser = build_parser()
+    args = parser.parse_args([
+        "generate-batch",
+        "--seeds",
+        "seeds.csv",
+        "--out",
+        "candidates.csv",
+    ])
+
+    assert args.command == "generate-batch"
+    assert args.seeds == "seeds.csv"
+    assert args.out == "candidates.csv"
+    assert args.n_double == 25
+    assert args.n_charge == 12
+    assert args.rng_seed == 2024