diff --git a/.gitignore b/.gitignore
index dec3713..3409ff2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,9 @@ CLAUDE.md
 # Docs (local reference material)
 Design Docs/
 Visor API docs/
+
+# Graphify knowledge graph outputs
+graphify-out/
+
+# Environment variables
+.env
diff --git a/tests/test_exports.py b/tests/test_exports.py
new file mode 100644
index 0000000..ea302b8
--- /dev/null
+++ b/tests/test_exports.py
@@ -0,0 +1,80 @@
+"""Smoke-test that all public symbols are importable from the visor package root."""
+
+import visor
+
+EXPECTED_EXPORTS = {
+    # clients
+    "AsyncVisorClient",
+    "VisorClient",
+    # pagination
+    "paginate_listings",
+    "paginate_dealers",
+    "iter_listings",
+    "iter_dealers",
+    # exceptions
+    "VisorError",
+    "VisorAPIError",
+    "VisorTransportError",
+    "AuthError",
+    "ForbiddenError",
+    "NotFoundError",
+    "ValidationError",
+    "PaymentRequiredError",
+    "RateLimitError",
+    # filter / request models
+    "ListingsFilter",
+    "FacetsFilter",
+    "DealerFilter",
+    "BBox",
+    # listing response models
+    "ListingsPage",
+    "ListingSummary",
+    "ListingDetail",
+    "ListingSnapshot",
+    # dealer response models
+    "DealersPage",
+    "DealerSummary",
+    "DealerDetail",
+    "DealerAddress",
+    # other response models
+    "VinDetail",
+    "UsageSummary",
+    "UsageRecord",
+    "UsageTotals",
+    "UsageMeta",
+    "FacetsResponse",
+    "FacetsData",
+    "FacetBucket",
+    # shared models
+    "Pagination",
+    "DealerRef",
+    "VehicleBuild",
+    "VehicleRecord",
+    "VehicleOption",
+}
+
+PRIVATE_TRANSPORT = {"AsyncVisorTransport", "SyncVisorTransport"}
+
+
+def test_all_contains_expected():
+    missing = EXPECTED_EXPORTS - set(visor.__all__)
+    assert not missing, f"Missing from __all__: {sorted(missing)}"
+
+
+def test_symbols_importable():
+    missing = [name for name in EXPECTED_EXPORTS if not hasattr(visor, name)]
+    assert not missing, f"Not importable from visor: {sorted(missing)}"
+
+
+def test_transport_internals_not_exported():
+    leaked = PRIVATE_TRANSPORT & set(visor.__all__)
+    assert not leaked, f"Internal transport classes in __all__: {sorted(leaked)}"
+
+
+def test_readme_imports():
+    from visor import AsyncVisorClient, ListingsFilter, VisorClient, iter_listings
+
+    assert AsyncVisorClient is visor.AsyncVisorClient
+    assert VisorClient is visor.VisorClient
+    assert ListingsFilter is visor.ListingsFilter
+    assert iter_listings is visor.iter_listings