diff --git a/state-hub/pyproject.toml b/state-hub/pyproject.toml
index 1e04d18..122f4d3 100644
--- a/state-hub/pyproject.toml
+++ b/state-hub/pyproject.toml
@@ -15,6 +15,7 @@ dependencies = [
     "fastmcp>=2.0.0",
     "python-dotenv>=1.0.0",
     "psycopg2-binary>=2.9.0",
+    "llm-connect",
 ]
 
 [project.scripts]
@@ -28,6 +29,9 @@ build-backend = "hatchling.build"
 packages = ["api", "mcp_server"]
 artifacts = ["custodian_cli.py"]
 
+[tool.uv.sources]
+llm-connect = { path = "/home/worsch/llm-connect", editable = true }
+
 [tool.uv]
 dev-dependencies = [
     "pytest>=8.0.0",
diff --git a/state-hub/tests/__init__.py b/state-hub/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/state-hub/tests/test_llm_connect_integration.py b/state-hub/tests/test_llm_connect_integration.py
new file mode 100644
index 0000000..e414eda
--- /dev/null
+++ b/state-hub/tests/test_llm_connect_integration.py
@@ -0,0 +1,74 @@
+"""
+Smoke test: llm-connect integration in state-hub (S3.1).
+
+Verifies that the package is importable from the state-hub venv and that
+the core types and mock adapter work correctly.  Does NOT call any live
+LLM endpoint — CI-safe and offline-safe.
+"""
+import llm_connect
+from llm_connect import (
+    MockLLMAdapter,
+    RunConfig,
+    LLMResponse,
+    LLMError,
+    create_adapter,
+)
+
+
+def test_package_version():
+    assert hasattr(llm_connect, "__version__") or True  # version attr optional
+
+
+def test_public_symbols_importable():
+    """All expected public symbols are present in llm_connect namespace."""
+    expected = [
+        "RunConfig", "LLMResponse",
+        "LLMAdapter", "MockLLMAdapter", "ErrorLLMAdapter",
+        "OpenRouterAdapter", "GeminiAdapter", "OpenAIAdapter", "ClaudeCodeAdapter",
+        "create_adapter",
+        "LLMError", "LLMConfigurationError", "LLMAPIError",
+        "LLMRateLimitError", "LLMTimeoutError", "LLMSubprocessError",
+        "EmbeddingAdapter", "OpenAICompatibleEmbeddingAdapter", "EmbeddingCache",
+        "cosine_similarity",
+    ]
+    missing = [name for name in expected if not hasattr(llm_connect, name)]
+    assert missing == [], f"Missing public symbols: {missing}"
+
+
+def test_mock_adapter_execute():
+    adapter = MockLLMAdapter(mock_response="hello from mock")
+    config  = RunConfig()
+    result  = adapter.execute_prompt("any prompt", config)
+
+    assert isinstance(result, LLMResponse)
+    assert result.content == "hello from mock"
+    assert adapter.call_count == 1
+
+
+def test_mock_adapter_reset():
+    adapter = MockLLMAdapter(mock_response="x")
+    adapter.execute_prompt("p", RunConfig())
+    adapter.reset()
+    assert adapter.call_count == 0
+
+
+def test_run_config_defaults():
+    cfg = RunConfig()
+    assert cfg.temperature >= 0
+    assert cfg.max_tokens > 0
+
+
+def test_llm_response_fields():
+    r = LLMResponse(content="ok", model="test-model")
+    assert r.content == "ok"
+    assert r.model  == "test-model"
+
+
+def test_error_adapter_raises():
+    from llm_connect import ErrorLLMAdapter
+    adapter = ErrorLLMAdapter(error_message="simulated failure")
+    try:
+        adapter.execute_prompt("p", RunConfig())
+        assert False, "should have raised"
+    except (LLMError, RuntimeError) as e:
+        assert "simulated failure" in str(e)
diff --git a/state-hub/uv.lock b/state-hub/uv.lock
index afb9d88..ad8b2e6 100644
--- a/state-hub/uv.lock
+++ b/state-hub/uv.lock
@@ -663,6 +663,20 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/81/db/e655086b7f3a705df045bf0933bdd9c2f79bb3c97bfef1384598bb79a217/keyring-25.7.0-py3-none-any.whl", hash = "sha256:be4a0b195f149690c166e850609a477c532ddbfbaed96a404d4e43f8d5e2689f", size = 39160 },
 ]
 
+[[package]]
+name = "llm-connect"
+version = "0.1.0"
+source = { editable = "../../llm-connect" }
+dependencies = [
+    { name = "toml" },
+]
+
+[package.metadata]
+requires-dist = [
+    { name = "pytest", marker = "extra == 'dev'", specifier = ">=7.0" },
+    { name = "toml" },
+]
+
 [[package]]
 name = "mako"
 version = "1.3.10"
@@ -1405,6 +1419,7 @@ dependencies = [
     { name = "fastapi" },
     { name = "fastmcp" },
     { name = "httpx" },
+    { name = "llm-connect" },
     { name = "psycopg2-binary" },
     { name = "pydantic" },
     { name = "pydantic-settings" },
@@ -1427,6 +1442,7 @@ requires-dist = [
     { name = "fastapi", specifier = ">=0.115.0" },
     { name = "fastmcp", specifier = ">=2.0.0" },
     { name = "httpx", specifier = ">=0.28.0" },
+    { name = "llm-connect", editable = "../../llm-connect" },
     { name = "psycopg2-binary", specifier = ">=2.9.0" },
     { name = "pydantic", specifier = ">=2.10.0" },
     { name = "pydantic-settings", specifier = ">=2.7.0" },
@@ -1442,6 +1458,15 @@ dev = [
     { name = "pytest-asyncio", specifier = ">=0.24.0" },
 ]
 
+[[package]]
+name = "toml"
+version = "0.10.2"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/be/ba/1f744cdc819428fc6b5084ec34d9b30660f6f9daaf70eead706e3203ec3c/toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f", size = 22253 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/44/6f/7120676b6d73228c96e17f1f794d8ab046fc910d781c8d151120c3f1569e/toml-0.10.2-py2.py3-none-any.whl", hash = "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b", size = 16588 },
+]
+
 [[package]]
 name = "typing-extensions"
 version = "4.15.0"