Python: Add Agent typing smoke tests for chat clients

python/packages/anthropic/tests/test_anthropic_client.py

@@ -7,6 +7,7 @@
 
 import pytest
 from agent_framework import (
+    Agent,
     ChatMiddlewareLayer,
     ChatOptions,
     ChatResponseUpdate,
@@ -136,6 +137,16 @@ def test_anthropic_client_wraps_raw_client_with_standard_layer_order() -> None:
     assert not issubclass(RawAnthropicClient, ChatTelemetryLayer)
 
 
+def test_agent_accepts_anthropic_clients() -> None:
+    raw_client = RawAnthropicClient(api_key="test-api-key", model="claude-3-5-sonnet-20241022")
+    raw_agent = Agent(client=raw_client, instructions="test agent")
+    assert raw_agent.client is raw_client
+
+    client = AnthropicClient(api_key="test-api-key", model="claude-3-5-sonnet-20241022")
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 def test_anthropic_client_init_auto_create_client(
     anthropic_unit_test_env: dict[str, str],
 ) -> None:

python/packages/anthropic/tests/test_anthropic_provider_clients.py

@@ -3,7 +3,7 @@
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
-from agent_framework import ChatMiddlewareLayer, FunctionInvocationLayer
+from agent_framework import Agent, ChatMiddlewareLayer, FunctionInvocationLayer
 from agent_framework._telemetry import get_user_agent
 from agent_framework.observability import ChatTelemetryLayer
 
@@ -42,6 +42,71 @@ def test_provider_client_wraps_raw_client_with_standard_layer_order(public_clien
     assert mro.index(ChatTelemetryLayer) < mro.index(raw_client)
 
 
+def test_agent_accepts_anthropic_foundry_clients() -> None:
+    mock_transport = _create_mock_transport("https://test-resource.services.ai.azure.com/anthropic/")
+    with patch("agent_framework_anthropic._foundry_client.AsyncAnthropicFoundry", return_value=mock_transport):
+        raw_client = RawAnthropicFoundryClient(
+            model="claude-foundry-test",
+            resource="test-resource",
+            api_key="test-key",
+        )
+    raw_agent = Agent(client=raw_client, instructions="test agent")
+    assert raw_agent.client is raw_client
+
+    with patch("agent_framework_anthropic._foundry_client.AsyncAnthropicFoundry", return_value=mock_transport):
+        client = AnthropicFoundryClient(
+            model="claude-foundry-test",
+            resource="test-resource",
+            api_key="test-key",
+        )
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
+def test_agent_accepts_anthropic_bedrock_clients() -> None:
+    mock_transport = _create_mock_transport("https://bedrock-runtime.us-east-1.amazonaws.com")
+    with patch("agent_framework_anthropic._bedrock_client.AsyncAnthropicBedrock", return_value=mock_transport):
+        raw_client = RawAnthropicBedrockClient(
+            model="claude-bedrock-test",
+            aws_access_key="access-key",
+            aws_secret_key="secret-key",
+            aws_region="us-east-1",
+        )
+    raw_agent = Agent(client=raw_client, instructions="test agent")
+    assert raw_agent.client is raw_client
+
+    with patch("agent_framework_anthropic._bedrock_client.AsyncAnthropicBedrock", return_value=mock_transport):
+        client = AnthropicBedrockClient(
+            model="claude-bedrock-test",
+            aws_access_key="access-key",
+            aws_secret_key="secret-key",
+            aws_region="us-east-1",
+        )
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
+def test_agent_accepts_anthropic_vertex_clients() -> None:
+    mock_transport = _create_mock_transport("https://us-central1-aiplatform.googleapis.com/v1")
+    with patch("agent_framework_anthropic._vertex_client.AsyncAnthropicVertex", return_value=mock_transport):
+        raw_client = RawAnthropicVertexClient(
+            model="claude-vertex-test",
+            region="us-central1",
+            project_id="test-project",
+        )
+    raw_agent = Agent(client=raw_client, instructions="test agent")
+    assert raw_agent.client is raw_client
+
+    with patch("agent_framework_anthropic._vertex_client.AsyncAnthropicVertex", return_value=mock_transport):
+        client = AnthropicVertexClient(
+            model="claude-vertex-test",
+            region="us-central1",
+            project_id="test-project",
+        )
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 def test_raw_anthropic_foundry_client_creates_sdk_client_from_settings(tmp_path) -> None:
     env_file = tmp_path / ".env"
     env_file.write_text(

python/packages/bedrock/tests/test_bedrock_client.py

@@ -5,7 +5,7 @@
 from typing import Any
 
 import pytest
-from agent_framework import Content, Message
+from agent_framework import Agent, Content, Message
 
 from agent_framework_bedrock import BedrockChatClient
 
@@ -40,6 +40,12 @@ def _make_client() -> BedrockChatClient:
     )
 
 
+def test_agent_accepts_bedrock_chat_client() -> None:
+    client = _make_client()
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 async def test_get_response_invokes_bedrock_runtime() -> None:
     stub = _StubBedrockRuntime()
     client = BedrockChatClient(

python/packages/foundry/tests/foundry/test_foundry_agent.py

@@ -12,6 +12,7 @@
 
 import pytest
 from agent_framework import (
+    Agent,
     AgentResponse,
     AgentSession,
     ChatContext,
@@ -109,6 +110,20 @@ def test_raw_foundry_agent_chat_client_init_with_agent_name() -> None:
     mock_project.get_openai_client.assert_called_once_with()
 
 
+def test_agent_accepts_raw_foundry_agent_chat_client() -> None:
+    mock_project = MagicMock()
+    mock_project.get_openai_client.return_value = MagicMock()
+
+    client = RawFoundryAgentChatClient(
+        project_client=mock_project,
+        agent_name="test-agent",
+        agent_version="1.0",
+    )
+
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 def test_raw_foundry_agent_chat_client_init_passes_agent_name_when_preview_enabled() -> None:
     """Test preview-enabled clients bind the OpenAI client to the agent endpoint."""
 

python/packages/foundry/tests/foundry/test_foundry_chat_client.py

@@ -12,7 +12,7 @@
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
-from agent_framework import ChatResponse, Content, Message, SupportsChatGetResponse, tool
+from agent_framework import Agent, ChatResponse, Content, Message, SupportsChatGetResponse, tool
 from agent_framework._telemetry import get_user_agent
 from agent_framework.exceptions import ChatClientException, ChatClientInvalidRequestException
 from agent_framework_openai import OpenAIContentFilterException
@@ -1412,3 +1412,17 @@ def test_parse_chunk_surfaces_oauth_consent_requested_event() -> None:
     assert consent_contents[0].consent_link == "https://consent-host.example.com/authorize?code=xyz"
     assert update.role == "assistant"
     assert update.raw_representation is mock_event
+
+
+def test_agent_accepts_foundry_chat_clients() -> None:
+    mock_project = MagicMock()
+    mock_openai = _make_mock_openai_client()
+    mock_project.get_openai_client.return_value = mock_openai
+
+    raw_client = RawFoundryChatClient(project_client=mock_project, model="test-model")
+    raw_agent = Agent(client=raw_client, instructions="test agent")
+    assert raw_agent.client is raw_client
+
+    client = FoundryChatClient(project_client=mock_project, model="test-model")
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client

python/packages/foundry_local/tests/test_foundry_local_client.py

@@ -4,7 +4,7 @@
 from unittest.mock import MagicMock, patch
 
 import pytest
-from agent_framework import SupportsChatGetResponse
+from agent_framework import Agent, SupportsChatGetResponse
 from agent_framework._settings import load_settings
 from agent_framework.exceptions import SettingNotFoundError
 from agent_framework.foundry import FoundryLocalClient
@@ -67,6 +67,17 @@ def test_foundry_local_client_init(mock_foundry_local_manager: MagicMock) -> Non
         assert isinstance(client, SupportsChatGetResponse)
 
 
+def test_agent_accepts_foundry_local_client(mock_foundry_local_manager: MagicMock) -> None:
+    with patch(
+        "agent_framework_foundry_local._foundry_local_client.FoundryLocalManager",
+        return_value=mock_foundry_local_manager,
+    ):
+        client = FoundryLocalClient(model="test-model-id")
+
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 def test_foundry_local_client_get_response_uses_explicit_runtime_buckets() -> None:
     """Foundry Local should expose explicit runtime buckets instead of raw kwargs."""
     signature = inspect.signature(FoundryLocalClient.get_response)

python/packages/gemini/tests/test_gemini_client.py

@@ -13,7 +13,7 @@
 from google.genai import types
 from pydantic import BaseModel
 
-from agent_framework_gemini import GeminiChatClient, GeminiChatOptions, ThinkingConfig
+from agent_framework_gemini import GeminiChatClient, GeminiChatOptions, RawGeminiChatClient, ThinkingConfig
 
 
 def _has_gemini_integration_credentials() -> bool:
@@ -142,6 +142,20 @@ def _make_gemini_client(
     return client, mock
 
 
+def test_agent_accepts_gemini_chat_clients() -> None:
+    mock = MagicMock()
+    mock._api_client.vertexai = False
+    mock._api_client._http_options.base_url = "https://generativelanguage.googleapis.com/"
+
+    raw_client = RawGeminiChatClient(client=mock, model="gemini-2.5-flash")
+    raw_agent = Agent(client=raw_client, instructions="test agent")
+    assert raw_agent.client is raw_client
+
+    client, _ = _make_gemini_client(model="gemini-2.5-flash")
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 def _parts(content: types.Content) -> list[types.Part]:
     assert content.parts is not None
     return content.parts

python/packages/ollama/tests/test_ollama_chat_client.py

@@ -7,6 +7,7 @@
 
 import pytest
 from agent_framework import (
+    Agent,
     BaseChatClient,
     ChatResponseUpdate,
     Content,
@@ -74,6 +75,12 @@ def chat_history() -> list[Message]:
     return []
 
 
+def test_agent_accepts_ollama_chat_client(ollama_unit_test_env: dict[str, str]) -> None:
+    client = OllamaChatClient()
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 @fixture
 def mock_streaming_chat_completion_response() -> AsyncStream[OllamaChatResponse]:
     response = OllamaChatResponse(

python/packages/openai/tests/openai/test_openai_chat_client.py

@@ -227,6 +227,16 @@ def test_raw_openai_chat_client_accepts_preconfigured_client_with_timeout() -> N
     assert client is not None
 
 
+def test_agent_accepts_openai_chat_clients() -> None:
+    raw_client = RawOpenAIChatClient(api_key="test-api-key", model="test-model")
+    raw_agent = Agent(client=raw_client, instructions="test agent")
+    assert raw_agent.client is raw_client
+
+    client = OpenAIChatClient(api_key="test-api-key", model="test-model")
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 def test_openai_chat_client_supports_all_tool_protocols() -> None:
     assert isinstance(OpenAIChatClient, SupportsCodeInterpreterTool)  # pyrefly: ignore[unsafe-overlap]
     assert isinstance(OpenAIChatClient, SupportsWebSearchTool)  # pyrefly: ignore[unsafe-overlap]

python/packages/openai/tests/openai/test_openai_chat_completion_client.py

@@ -8,6 +8,7 @@
 
 import pytest
 from agent_framework import (
+    Agent,
     ChatResponse,
     Content,
     Message,
@@ -70,6 +71,16 @@ def test_init_uses_explicit_parameters() -> None:
     assert all(parameter.kind != inspect.Parameter.VAR_KEYWORD for parameter in signature.parameters.values())
 
 
+def test_agent_accepts_openai_chat_completion_clients() -> None:
+    raw_client = RawOpenAIChatCompletionClient(api_key="test-api-key", model="test-model")
+    raw_agent = Agent(client=raw_client, instructions="test agent")
+    assert raw_agent.client is raw_client
+
+    client = OpenAIChatCompletionClient(api_key="test-api-key", model="test-model")
+    agent = Agent(client=client, instructions="test agent")
+    assert agent.client is client
+
+
 def test_supports_web_search_only() -> None:
     assert not isinstance(OpenAIChatCompletionClient, SupportsCodeInterpreterTool)
     assert isinstance(OpenAIChatCompletionClient, SupportsWebSearchTool)  # pyrefly: ignore[unsafe-overlap]