diff --git a/code/tests/test_welcome.py b/code/tests/test_welcome.py
new file mode 100644
index 0000000..dfed778
--- /dev/null
+++ b/code/tests/test_welcome.py
@@ -0,0 +1,21 @@
+"""Cubre la ruta raíz `/`: página de bienvenida por defecto del Golden Path."""
+
+from fastapi.testclient import TestClient
+
+
+def test_root_serves_welcome_page(client: TestClient) -> None:
+    response = client.get("/")
+    assert response.status_code == 200
+    assert "text/html" in response.headers.get("content-type", "")
+    body = response.text
+    # Mensaje clave: el desarrollo del tenant reemplaza esta página tras commit+push.
+    assert "commit" in body and "push" in body
+    assert "plataforma" in body.lower()
+    # En el template (sin renderizar) el placeholder sigue presente.
+    assert "__APP_NAME__" in body
+
+
+def test_root_excluded_from_openapi_schema(client: TestClient) -> None:
+    # La welcome page no debe ensuciar el contrato OpenAPI del dev (include_in_schema=False).
+    schema = client.get("/openapi.json").json()
+    assert "/" not in schema.get("paths", {})