diff --git a/pyproject.toml b/pyproject.toml
index 8850527..30a9083 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,8 @@
 [tool.pytest.ini_options]
 addopts = "--cov=tests --cov-report=term-missing"
+markers = [
+    "docker: tests that build and exercise the nginx image through Docker",
+]
 
 [tool.coverage.run]
 omit = ["tests/test_video_service.py"]
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..e7f6143
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,19 @@
+"""Shared test-environment handling for optional Docker integration tests."""
+
+import shutil
+import subprocess
+
+import pytest
+
+
+def pytest_runtest_setup(item):
+    if "docker" not in item.keywords:
+        return
+    docker = shutil.which("docker")
+    if docker is None:
+        pytest.skip("Docker integration tests require the docker executable")
+    result = subprocess.run(
+        [docker, "info"], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False
+    )
+    if result.returncode != 0:
+        pytest.skip("Docker integration tests require access to the Docker daemon")
diff --git a/tests/test_generated_infra.py b/tests/test_generated_infra.py
index 2addd7b..6a2e797 100644
--- a/tests/test_generated_infra.py
+++ b/tests/test_generated_infra.py
@@ -5,6 +5,8 @@
 import pytest
 import requests
 
+pytestmark = pytest.mark.docker
+
 # Configuration
 MANIFEST_PATH = 'content/videos.json'
 CONTENT_DIR = 'content'
diff --git a/tests/test_static_contracts.py b/tests/test_static_contracts.py
new file mode 100644
index 0000000..fc398d7
--- /dev/null
+++ b/tests/test_static_contracts.py
@@ -0,0 +1,96 @@
+"""Deterministic contract tests for the static video service.
+
+These tests intentionally exercise the files that are packaged into the nginx
+image without requiring Docker, a network service, or video decoding.
+"""
+
+import json
+import re
+from pathlib import Path
+
+import pytest
+
+
+ROOT = Path(__file__).parents[1]
+CONTENT = ROOT / "content"
+MANIFEST = CONTENT / "videos.json"
+NGINX = ROOT / "nginx.conf"
+DOCKERFILE = ROOT / "Dockerfile"
+INDEX = CONTENT / "index.html"
+GUIDE = CONTENT / "guide.html"
+
+
+def load_manifest():
+    with MANIFEST.open(encoding="utf-8") as handle:
+        return json.load(handle)
+
+
+def test_docker_image_packages_the_documented_content_root():
+    dockerfile = DOCKERFILE.read_text(encoding="utf-8")
+    assert "COPY content/ /usr/share/nginx/html/" in dockerfile
+    assert "COPY nginx.conf /etc/nginx/conf.d/default.conf" in dockerfile
+    assert "EXPOSE 8086" in dockerfile
+
+
+def test_manifest_entries_are_complete_unique_and_backed_by_files():
+    entries = load_manifest()
+    assert isinstance(entries, list) and entries
+
+    filenames = [entry["filename"] for entry in entries]
+    orders = [entry["order"] for entry in entries]
+    assert len(filenames) == len(set(filenames))
+    assert len(orders) == len(set(orders))
+    assert orders == sorted(orders)
+
+    for entry in entries:
+        assert set(entry) == {"filename", "title", "desc", "tag", "order"}
+        assert re.fullmatch(r"[^/]+\.(?:mp4|webm|mov)", entry["filename"], re.I)
+        assert (CONTENT / entry["filename"]).is_file()
+        assert all(isinstance(entry[field], str) and entry[field].strip() for field in ("title", "desc", "tag"))
+        assert isinstance(entry["order"], int) and not isinstance(entry["order"], bool)
+
+
+def test_nginx_routes_match_the_packaged_layout_and_documented_endpoints():
+    config = NGINX.read_text(encoding="utf-8")
+    assert 'root /usr/share/nginx/html;' in config
+    assert "location /videos.json" in config
+    assert 'alias /videos/videos.json;' in config
+    assert "location /videos/" in config
+    assert "alias /videos/;" in config
+    assert "location /health" in config
+
+
+@pytest.mark.xfail(strict=True, reason="Known production routing mismatch: index.js uses /videos/* while Dockerfile packages content at the nginx document root")
+def test_index_uses_the_same_video_urls_as_the_nginx_configuration():
+    html = INDEX.read_text(encoding="utf-8")
+    # This currently fails and records the production routing defect: the
+    # image contains /usr/share/nginx/html/*, not /videos/*.
+    assert "fetch(`${API}/videos.json`)" in html
+    assert "fetch(`${API}/videos/`)" in html
+    assert "${API}/${v.filename}" in html
+
+
+def test_index_contains_manifest_filter_search_and_modal_contracts():
+    html = INDEX.read_text(encoding="utf-8")
+    for marker in ("videos.json", "filterVideos", "setFilter", "openModal", "closeModal", "searchInput", "videoCount"):
+        assert marker in html
+    assert "manifest.sort" in html
+    assert "(a.order || 999) - (b.order || 999)" in html
+
+
+def test_guide_has_all_documented_sections_and_navigation_handler():
+    html = GUIDE.read_text(encoding="utf-8")
+    for section in ("overview", "local", "cloud", "hpc", "llm", "workbench", "workflow", "faq"):
+        assert f'id="p-{section}"' in html
+    assert "function show(" in html
+    assert "show('overview')" in html
+
+
+@pytest.mark.xfail(strict=True, reason="Several manifest-listed video assets are zero-byte placeholders in the repository")
+def test_video_files_are_non_empty_and_have_expected_media_extensions():
+    manifest_names = {entry["filename"] for entry in load_manifest()}
+    content_videos = {
+        path.name for path in CONTENT.iterdir() if path.suffix.lower() in {".mp4", ".webm", ".mov"}
+    }
+    assert manifest_names <= content_videos
+    assert all((CONTENT / name).stat().st_size > 0 for name in manifest_names)
diff --git a/tests/test_video_service.py b/tests/test_video_service.py
index 940d6ae..202a610 100644
--- a/tests/test_video_service.py
+++ b/tests/test_video_service.py
@@ -3,6 +3,8 @@
 import pytest
 import requests
 
+pytestmark = pytest.mark.docker
+
 IMAGE_NAME = "omnibioai-videos-test"
 CONTAINER_NAME = "omnibioai-videos-test-container"
 PORT = 8086