diff --git a/desloppify/app/commands/runner/codex_batch.py b/desloppify/app/commands/runner/codex_batch.py
index 6fb754ab2..14c389ad3 100644
--- a/desloppify/app/commands/runner/codex_batch.py
+++ b/desloppify/app/commands/runner/codex_batch.py
@@ -16,7 +16,9 @@
     resolve_retry_config,
     run_batch_attempt,
 )
-from desloppify.app.commands.review.runner_process_impl.io import extract_payload_from_log
+from desloppify.app.commands.review.runner_process_impl.io import (
+    extract_payload_from_log,
+)
 from desloppify.app.commands.review.runner_process_impl.types import (
     CodexBatchRunnerDeps,
     FollowupScanDeps,
@@ -95,6 +97,8 @@ def codex_batch_command(*, prompt: str, repo_root: Path, output_file: Path) -> l
         *prefix,
         "exec",
         "--ephemeral",
+        # Scans also support source archives and directories without Git metadata.
+        "--skip-git-repo-check",
         "-C",
         str(repo_root),
         "-s",
diff --git a/desloppify/tests/commands/test_runner_modules_direct.py b/desloppify/tests/commands/test_runner_modules_direct.py
index 083885ca8..c6452d0cb 100644
--- a/desloppify/tests/commands/test_runner_modules_direct.py
+++ b/desloppify/tests/commands/test_runner_modules_direct.py
@@ -174,7 +174,8 @@ def test_codex_batch_command_uses_sanitized_reasoning_effort(monkeypatch, tmp_pa
     assert any(c.endswith("codex") or "codex" in c for c in command[:3])
     assert "exec" in command
     assert "--ephemeral" in command
-    assert f'model_reasoning_effort="high"' in command
+    assert "--skip-git-repo-check" in command
+    assert 'model_reasoning_effort="high"' in command
     assert str(tmp_path) in command
 
     monkeypatch.setenv("DESLOPPIFY_CODEX_REASONING_EFFORT", "invalid")
@@ -183,7 +184,7 @@ def test_codex_batch_command_uses_sanitized_reasoning_effort(monkeypatch, tmp_pa
         repo_root=tmp_path,
         output_file=tmp_path / "out.json",
     )
-    assert f'model_reasoning_effort="low"' in command
+    assert 'model_reasoning_effort="low"' in command
 
 
 def test_codex_batch_command_uses_sandbox_env_override(monkeypatch, tmp_path: Path) -> None: