Python: add agent-framework-hosting-responses channel

python/packages/hosting-responses/LICENSE

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+    MIT License
+
+    Copyright (c) Microsoft Corporation.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE

python/packages/hosting-responses/README.md

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+# agent-framework-hosting-responses
+
+OpenAI Responses-shaped channel for `agent-framework-hosting`.
+
+Exposes a single `POST /responses` endpoint that accepts the OpenAI
+Responses API request body and returns either a Responses-shaped JSON
+body or a Server-Sent-Events stream when `stream=True`.
+
+```python
+from agent_framework import ChatAgent
+from agent_framework.openai import OpenAIChatClient
+from agent_framework_hosting import AgentFrameworkHost
+from agent_framework_hosting_responses import ResponsesChannel
+
+agent = ChatAgent(name="Assistant", chat_client=OpenAIChatClient())
+
+host = AgentFrameworkHost(target=agent, channels=[ResponsesChannel()])
+host.serve(port=8000)
+```
+
+The base host plumbing lives in
+[`agent-framework-hosting`](https://pypi.org/project/agent-framework-hosting/).

python/packages/hosting-responses/agent_framework_hosting_responses/__init__.py

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+# Copyright (c) Microsoft. All rights reserved.
+
+"""OpenAI Responses-shaped channel for ``agent-framework-hosting``."""
+
+import importlib.metadata
+
+from ._channel import ResponsesChannel
+from ._parsing import (
+    messages_from_responses_input,
+    parse_response_target,
+    parse_responses_identity,
+    parse_responses_request,
+)
+
+try:
+    __version__ = importlib.metadata.version(__name__)
+except importlib.metadata.PackageNotFoundError:
+    __version__ = "0.0.0"
+
+__all__ = [
+    "ResponsesChannel",
+    "__version__",
+    "messages_from_responses_input",
+    "parse_response_target",
+    "parse_responses_identity",
+    "parse_responses_request",
+]