diff --git a/src/ai_dev_tools/git/inspect.py b/src/ai_dev_tools/git/inspect.py
index c8d91fd..9275632 100644
--- a/src/ai_dev_tools/git/inspect.py
+++ b/src/ai_dev_tools/git/inspect.py
@@ -22,7 +22,7 @@ def inspect_git(
         command="git inspect" if detailed else "git status", project_root=settings.project_root
     )
     status_cmd = run_command(
-        ["git", "status", "--porcelain=v2", "--branch", "-z"],
+        ["git", "status", "--porcelain=v2", "--branch", "--untracked-files=all", "-z"],
         settings.project_root,
         30,
     )
diff --git a/tests/integration/test_git.py b/tests/integration/test_git.py
index 367eef6..bca5508 100644
--- a/tests/integration/test_git.py
+++ b/tests/integration/test_git.py
@@ -114,7 +114,14 @@ def spy_run(command: list[str], root: Path, timeout_seconds: int = 300):  # type
     report = inspect_git(tmp_path, detailed=False, write_reports=False)
 
     assert len(git_commands) == 1
-    assert git_commands[0] == ["git", "status", "--porcelain=v2", "--branch", "-z"]
+    assert git_commands[0] == [
+        "git",
+        "status",
+        "--porcelain=v2",
+        "--branch",
+        "--untracked-files=all",
+        "-z",
+    ]
     assert report.summary["untracked_files"] == ["test.txt"]
     assert "DIRTY" in report.summary["states"]
 
@@ -217,4 +224,21 @@ def test_git_states_and_large_files(tmp_path: Path) -> None:
     assert res == ["big.bin"]
 
 
+def test_git_inspect_expands_nested_untracked_files(tmp_path: Path) -> None:
+    run_command(["git", "init", "-b", "main"], tmp_path, 30)
+    nested = tmp_path / "src" / "new package"
+    nested.mkdir(parents=True)
+    source = nested / "service.py"
+    source.write_text("def calculate():\n    return 1\n", encoding="utf-8")
+    (tmp_path / ".gitignore").write_text("ignored/\n", encoding="utf-8")
+    ignored = tmp_path / "ignored"
+    ignored.mkdir()
+    (ignored / "secret.py").write_text("VALUE = 1\n", encoding="utf-8")
+
+    report = inspect_git(tmp_path, detailed=True, write_reports=False)
 
+    assert "src/new package/service.py" in report.summary["untracked_files"]
+    assert "src/new package/service.py" in report.summary["changed_files"]
+    assert "src/" not in report.summary["changed_files"]
+    assert all(not path.startswith("ignored/") for path in report.summary["changed_files"])
+    assert any(symbol["name"] == "calculate" for symbol in report.summary["changed_symbols"])
diff --git a/tests/unit/test_context_builder.py b/tests/unit/test_context_builder.py
index 7489093..1e98428 100644
--- a/tests/unit/test_context_builder.py
+++ b/tests/unit/test_context_builder.py
@@ -357,3 +357,22 @@ def test_context_hierarchical_refinement_reports_rounds_and_limits(tmp_path: Pat
     assert refinement["added_count"] == 2
     selected = {item["path"] for item in report.summary["selected_files"]}
     assert {"app.py", "helper.py", "leaf.py"} <= selected
+
+
+def test_changed_only_context_includes_nested_untracked_source(tmp_path: Path) -> None:
+    from ai_dev_tools.utils.subprocess import run_command
+
+    run_command(["git", "init", "-b", "main"], tmp_path, 30)
+    (tmp_path / "src" / "new_package").mkdir(parents=True)
+    (tmp_path / "src" / "new_package" / "service.py").write_text(
+        "def calculate():\n    return 1\n", encoding="utf-8"
+    )
+
+    report = build_context(
+        tmp_path,
+        ContextOptions(changed_only=True, explain=True, task="review new service"),
+    )
+
+    selected = {item["path"]: item for item in report.summary["selected_files"]}
+    assert "src/new_package/service.py" in selected
+    assert selected["src/new_package/service.py"]["reason_code"] == "CHANGED_FILE"