From df4206b652544735634799d70f73f6198d2a8635 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 6 Nov 2025 02:28:23 +0000
Subject: [PATCH 1/3] Initial plan


From 4c1e71602a6a3f1134185ce1363a0a3123a710a6 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 6 Nov 2025 02:38:34 +0000
Subject: [PATCH 2/3] Add signin/failure invoke activity support

Co-authored-by: heyitsaamir <48929123+heyitsaamir@users.noreply.github.com>
---
 .../api/activities/invoke/sign_in/__init__.py |  4 +-
 .../api/activities/invoke/sign_in/failure.py  | 24 ++++++
 .../teams/api/models/sign_in/__init__.py      |  3 +-
 .../teams/api/models/sign_in/failure.py       | 26 +++++++
 .../unit/test_signin_failure_activity.py      | 76 +++++++++++++++++++
 .../teams/mcpplugin/server_plugin.py          |  4 +-
 6 files changed, 132 insertions(+), 5 deletions(-)
 create mode 100644 packages/api/src/microsoft/teams/api/activities/invoke/sign_in/failure.py
 create mode 100644 packages/api/src/microsoft/teams/api/models/sign_in/failure.py
 create mode 100644 packages/api/tests/unit/test_signin_failure_activity.py

diff --git a/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/__init__.py b/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/__init__.py
index 04dd5668..d24cd546 100644
--- a/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/__init__.py
+++ b/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/__init__.py
@@ -7,16 +7,18 @@
 
 from pydantic import Field
 
+from .failure import SignInFailureInvokeActivity
 from .token_exchange import SignInTokenExchangeInvokeActivity
 from .verify_state import SignInVerifyStateInvokeActivity
 
 SignInInvokeActivity = Annotated[
-    Union[SignInTokenExchangeInvokeActivity, SignInVerifyStateInvokeActivity],
+    Union[SignInTokenExchangeInvokeActivity, SignInVerifyStateInvokeActivity, SignInFailureInvokeActivity],
     Field(discriminator="name"),
 ]
 
 __all__ = [
     "SignInTokenExchangeInvokeActivity",
     "SignInVerifyStateInvokeActivity",
+    "SignInFailureInvokeActivity",
     "SignInInvokeActivity",
 ]
diff --git a/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/failure.py b/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/failure.py
new file mode 100644
index 00000000..607046fe
--- /dev/null
+++ b/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/failure.py
@@ -0,0 +1,24 @@
+"""
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the MIT License.
+"""
+
+from typing import Literal
+
+from ....models import SignInFailure
+from ...invoke_activity import InvokeActivity
+
+
+class SignInFailureInvokeActivity(InvokeActivity):
+    """
+    Sign-in failure invoke activity for signin/failure invokes.
+
+    Represents an invoke activity when a sign-in operation fails
+    during the authentication process.
+    """
+
+    name: Literal["signin/failure"] = "signin/failure"  #
+    """The name of the operation associated with an invoke or event activity."""
+
+    value: SignInFailure
+    """A value that is associated with the activity."""
diff --git a/packages/api/src/microsoft/teams/api/models/sign_in/__init__.py b/packages/api/src/microsoft/teams/api/models/sign_in/__init__.py
index 2baa687a..ca4558b3 100644
--- a/packages/api/src/microsoft/teams/api/models/sign_in/__init__.py
+++ b/packages/api/src/microsoft/teams/api/models/sign_in/__init__.py
@@ -5,7 +5,8 @@
 
 from .card import SignInCard
 from .exchange_token import SignInExchangeToken
+from .failure import SignInFailure
 from .response import SignInUrlResponse
 from .state_verify_query import SignInStateVerifyQuery
 
-__all__ = ["SignInUrlResponse", "SignInCard", "SignInExchangeToken", "SignInStateVerifyQuery"]
+__all__ = ["SignInUrlResponse", "SignInCard", "SignInExchangeToken", "SignInStateVerifyQuery", "SignInFailure"]
diff --git a/packages/api/src/microsoft/teams/api/models/sign_in/failure.py b/packages/api/src/microsoft/teams/api/models/sign_in/failure.py
new file mode 100644
index 00000000..1bcaa061
--- /dev/null
+++ b/packages/api/src/microsoft/teams/api/models/sign_in/failure.py
@@ -0,0 +1,26 @@
+"""
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the MIT License.
+"""
+
+from typing import Optional
+
+from ..custom_base_model import CustomBaseModel
+
+
+class SignInFailure(CustomBaseModel):
+    """
+    Sign-in failure information.
+
+    Represents the details of a sign-in failure including
+    an error code and message.
+    """
+
+    code: Optional[str] = None
+    """
+    The error code for the sign-in failure
+    """
+    message: Optional[str] = None
+    """
+    The error message for the sign-in failure
+    """
diff --git a/packages/api/tests/unit/test_signin_failure_activity.py b/packages/api/tests/unit/test_signin_failure_activity.py
new file mode 100644
index 00000000..ca6ec9e0
--- /dev/null
+++ b/packages/api/tests/unit/test_signin_failure_activity.py
@@ -0,0 +1,76 @@
+"""
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the MIT License.
+"""
+
+import pytest
+from microsoft.teams.api.activities.invoke.sign_in import SignInFailureInvokeActivity
+from microsoft.teams.api.models import Account, ConversationAccount, SignInFailure
+
+
+@pytest.mark.unit
+class TestSignInFailureInvokeActivity:
+    """Unit tests for SignInFailureInvokeActivity class."""
+
+    def test_should_create_signin_failure_activity(self) -> None:
+        """Test creating a signin failure activity with code and message."""
+        failure = SignInFailure(code="resourcematchfailed", message="Resource match failed")
+        user = Account(id="user-1", name="Test User")
+        bot = Account(id="bot-1", name="Test Bot")
+        conversation = ConversationAccount(id="conv-1")
+
+        activity = SignInFailureInvokeActivity(
+            id="activity-1",
+            name="signin/failure",
+            value=failure,
+            from_=user,
+            conversation=conversation,
+            recipient=bot,
+        )
+
+        assert activity.name == "signin/failure"
+        assert activity.type == "invoke"
+        assert activity.value.code == "resourcematchfailed"
+        assert activity.value.message == "Resource match failed"
+
+    def test_should_deserialize_signin_failure_activity(self) -> None:
+        """Test deserializing a signin failure activity from JSON-like dict."""
+        activity_dict = {
+            "id": "activity-1",
+            "name": "signin/failure",
+            "type": "invoke",
+            "from": {"id": "user-1", "name": "Test User"},
+            "conversation": {"id": "conv-1"},
+            "recipient": {"id": "bot-1", "name": "Test Bot"},
+            "value": {"code": "resourcematchfailed", "message": "Resource match failed"},
+        }
+
+        activity = SignInFailureInvokeActivity.model_validate(activity_dict)
+
+        assert activity.name == "signin/failure"
+        assert activity.type == "invoke"
+        assert activity.value.code == "resourcematchfailed"
+        assert activity.value.message == "Resource match failed"
+
+    def test_should_serialize_signin_failure_activity(self) -> None:
+        """Test serializing a signin failure activity to dict."""
+        failure = SignInFailure(code="unauthorized", message="Unauthorized access")
+        user = Account(id="user-1", name="Test User")
+        bot = Account(id="bot-1", name="Test Bot")
+        conversation = ConversationAccount(id="conv-1")
+
+        activity = SignInFailureInvokeActivity(
+            id="activity-1",
+            name="signin/failure",
+            value=failure,
+            from_=user,
+            conversation=conversation,
+            recipient=bot,
+        )
+
+        serialized = activity.model_dump()
+
+        assert serialized["name"] == "signin/failure"
+        assert serialized["type"] == "invoke"
+        assert serialized["value"]["code"] == "unauthorized"
+        assert serialized["value"]["message"] == "Unauthorized access"
diff --git a/packages/mcpplugin/src/microsoft/teams/mcpplugin/server_plugin.py b/packages/mcpplugin/src/microsoft/teams/mcpplugin/server_plugin.py
index 43a3b1db..c095ad51 100644
--- a/packages/mcpplugin/src/microsoft/teams/mcpplugin/server_plugin.py
+++ b/packages/mcpplugin/src/microsoft/teams/mcpplugin/server_plugin.py
@@ -29,9 +29,7 @@
 P = TypeVar("P", bound=BaseModel)
 
 
-@Plugin(
-    name="mcp-server", version=version, description="MCP server plugin that exposes AI functions as MCP tools"
-)
+@Plugin(name="mcp-server", version=version, description="MCP server plugin that exposes AI functions as MCP tools")
 class McpServerPlugin(PluginBase):
     """
     MCP Server Plugin for Teams Apps.

From ce7c1e743a9ccce1427b56e43e9bca5d4c236032 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 6 Nov 2025 02:44:20 +0000
Subject: [PATCH 3/3] Remove trailing comment marker from failure.py

Co-authored-by: heyitsaamir <48929123+heyitsaamir@users.noreply.github.com>
---
 .../microsoft/teams/api/activities/invoke/sign_in/failure.py    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/failure.py b/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/failure.py
index 607046fe..9b6ada6a 100644
--- a/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/failure.py
+++ b/packages/api/src/microsoft/teams/api/activities/invoke/sign_in/failure.py
@@ -17,7 +17,7 @@ class SignInFailureInvokeActivity(InvokeActivity):
     during the authentication process.
     """
 
-    name: Literal["signin/failure"] = "signin/failure"  #
+    name: Literal["signin/failure"] = "signin/failure"
     """The name of the operation associated with an invoke or event activity."""
 
     value: SignInFailure