agent-framework

.NET: Update GitHub.Copilot.SDK to 0.1.23 and copy new session config prope… (#3788 )

* Update GitHub.Copilot.SDK to 0.1.23 and copy new session config properties

- Bump GitHub.Copilot.SDK from 0.1.18 to 0.1.23
- Add new SessionConfig properties: ReasoningEffort, Hooks, OnUserInputRequest,
  WorkingDirectory, ConfigDir, InfiniteSessions
- Add missing ResumeSessionConfig properties: Model, SystemMessage,
  AvailableTools, ExcludedTools, ReasoningEffort, Hooks, OnUserInputRequest,
  WorkingDirectory, ConfigDir, InfiniteSessions
- Fix UserMessageDataAttachmentsItem -> UserMessageDataAttachmentsItemFile
  for new polymorphic attachment API
- Add unit tests for new session config properties

* Address PR review: centralize config mapping and improve test coverage

- Extract CopySessionConfig/CopyResumeSessionConfig as internal static helpers
  to eliminate duplicated mapping logic between RunCoreStreamingAsync and
  CreateResumeConfig (addresses reviewer comment on drift risk)
- Add InternalsVisibleTo for unit test project
- Replace shallow constructor tests with comprehensive property-verification
  tests that validate every config property is correctly copied, including
  OnUserInputRequest (addresses reviewer comments on test coverage)

* Remove accidentally committed git-lfs hooks

Chandramouleswaran · 2026-02-12 18:31:20 +00:00

0c67dbbce5

.NET Workflows - Add unit tests for ForeachExecutor (Declarative Workflows) (#3835 )

* Initial plan

* Add comprehensive unit tests for ForeachExecutor

Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>

* Formatting

* Checkpoint

* Checkpoint

* Updated test capabilities for non-discrete

* Update dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ForeachExecutorTest.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ForeachExecutorTest.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Consistency

* Cleanup test

* Fixed

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>
Co-authored-by: Chris Rickman <crickman@microsoft.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Copilot · 2026-02-12 16:29:54 +00:00

69dcfe31ee

.NET: [BREAKING] Change SerializeSession to be Async (#3879 )

* Change SerializeSession to be Async

* Update Changelog

westey · 2026-02-12 11:56:42 +00:00

6a88c7b1a1

.NET Workflows - Add unit tests for CopyConversationMessagesExecutor (Declarative Workflows) (#3834 )

* Initial plan

* Add CopyConversationMessagesExecutorTest with 7 comprehensive test cases

Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>

* Simplify ExecuteTestAsync to avoid duplicate event filtering logic

Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>

* Refine

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>
Co-authored-by: Chris Rickman <crickman@microsoft.com>

Copilot · 2026-02-11 21:31:37 +00:00

692fcd1888

Update to M.E.AI 10.3.0 (#3822 )

Co-authored-by: Roger Barreto <19890735+rogerbarreto@users.noreply.github.com>

Stephen Toub · 2026-02-11 17:02:07 +00:00

b52136952f

.NET: Add unit tests for EditTableV2Executor (#3773 )

* Initial plan

* Add comprehensive unit tests for EditTableV2Executor

- Test AddItemOperation with record and scalar values
- Test ClearItemsOperation
- Test RemoveItemOperation
- Test TakeLastItemOperation (with items and empty table)
- Test TakeFirstItemOperation (with items and empty table)
- Test error cases (null ItemsVariable, non-table variable)
- Include ExecuteTestAsync and CreateModel helper methods
- All 10 tests passing

Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>

* Add comprehensive unit tests for EditTableV2Executor - complete with 100% coverage

- Added 13 comprehensive tests covering all code paths
- Test AddItemOperation with record and scalar values
- Test ClearItemsOperation
- Test RemoveItemOperation (including non-table value case)
- Test TakeLastItemOperation (with items and empty table)
- Test TakeFirstItemOperation (with items and empty table)
- Test error cases (null ItemsVariable, non-table variable, null operation values)
- Include ExecuteTestAsync and CreateModel helper methods
- 100% line and branch coverage achieved

Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>

* Update tests / refine product code

* Checkpoint

* Updated

* Update dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/SetTextVariableExecutorTest.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Address code review feedback

- Fix typo: rename metadataExpresssion to metadataExpression
- Fix test name in AddMessageWithMetadataAsync (was using wrong test name)
- Fix test name in ClearGlobalScopeAsync (was using wrong test name)
- Remove pre-population in SetTextVariableExecutorTest that made tests ineffective
- Use explicit .Where() filter in SetMultipleVariablesExecutorTest foreach loop

Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: crickman <66376200+crickman@users.noreply.github.com>
Co-authored-by: Chris Rickman <crickman@microsoft.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Copilot · 2026-02-10 23:11:49 +00:00

9f4c5f3faa

.NET Workflows - Remove empty message injection in declarative workflow agent provider. (#3819 )

* Fixed

* Update test-case expectations

Chris · 2026-02-10 21:25:40 +00:00

f407f726a7

Updated (#3772 )

Chris · 2026-02-10 21:15:59 +00:00

ccff3d3452

.NET: [BREAKING] Update message source code to match python. (#3805 )

* Update message source code to match python.

* Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Address PR comment

* Move setting of source information to extension method

* Add underscore for attribution key to indicate internal usage

* Stick to version 102 of the SDK since 103 is causing issues.

* Revert global.json change

* Fix unit test

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

westey · 2026-02-10 19:21:18 +00:00

7dccf3a07b

Python: [Purview] Update CorrelationId (#3745 )

Rishabh Chawla · 2026-02-10 19:19:14 +00:00

7e7d72275d

.NET: Fix: Checkpoint Deserialization breaks when JSON metadata properties are out of order (#3442 )

* Fix checkpoint JSON deserialization with out-of-order metadata properties (#2962)

* Simplify: propagate AllowOutOfOrderMetadataProperties from incoming JsonSerializerOptions

Jacob Alber · 2026-02-10 15:50:57 +00:00

e489ac0fa3

Fix streaming path to include chat history in messages sent to chat client (#3798 )

RunCoreStreamingAsync was passing inputMessagesForProviders (which lacks
chat history) to GetStreamingResponseAsync instead of
inputMessagesForChatClient (which includes chat history). This caused
streaming runs to lose conversation context on subsequent calls.

The non-streaming path (RunCoreAsync) already correctly used
inputMessagesForChatClient. This aligns the streaming path to match.

Also adds a unit test that validates chat history is included in
messages sent to the chat client during streaming on subsequent calls.

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: lokitoth <6936551+lokitoth@users.noreply.github.com>

Copilot · 2026-02-10 15:50:41 +00:00

6c37ce8450

.NET: Workflow telemetry opt in (#3467 )

* feat(workflows): Make telemetry opt-in via WithOpenTelemetry()

- Add WorkflowTelemetryOptions class with EnableSensitiveData property
- Add WorkflowTelemetryContext to manage ActivitySource lifecycle
- Add WithOpenTelemetry() extension method on WorkflowBuilder
- Update all workflow components to use telemetry context:
  - WorkflowBuilder, Workflow, Executor
  - InProcessRunnerContext, InProcessRunner
  - LockstepRunEventStream, StreamingRunEventStream
  - All edge runners (Direct, FanIn, FanOut, Response)
- Telemetry is now disabled by default
- Users must call WithOpenTelemetry() to enable spans/activities

BREAKING CHANGE: Workflow telemetry is now opt-in. Users who relied on
automatic telemetry must add .WithOpenTelemetry() to their workflow builder.

* refactor: Pass telemetry context as parameter instead of via interface

- Remove IWorkflowContextWithTelemetry interface
- Add internal ExecuteAsync overload that accepts WorkflowTelemetryContext
- Public ExecuteAsync delegates with WorkflowTelemetryContext.Disabled
- InProcessRunner passes TelemetryContext when calling ExecuteAsync
- BoundContext now implements IWorkflowContext (not the removed interface)

* Add optional ActivitySource parameter to WithOpenTelemetry

Allow users to provide their own ActivitySource when enabling telemetry,
giving them better control over the ActivitySource lifecycle. When not
provided, the framework creates one internally (existing behavior).

Changes:
- Add optional activitySource parameter to WithOpenTelemetry() extension
- Update WorkflowTelemetryContext to accept external ActivitySource
- Add unit test for user-provided ActivitySource scenario

* Add component-level telemetry control with disable flags

Allow users to selectively disable specific activity types via
WorkflowTelemetryOptions. All activities are enabled by default.

New disable flags:
- DisableWorkflowBuild: Disables workflow.build activities
- DisableWorkflowRun: Disables workflow_invoke activities
- DisableExecutorProcess: Disables executor.process activities
- DisableEdgeGroupProcess: Disables edge_group.process activities
- DisableMessageSend: Disables message.send activities

Added helper methods to WorkflowTelemetryContext for each activity type
and updated all activity creation sites to use them.

* Implement EnableSensitiveData to log executor input/output

When EnableSensitiveData is true in WorkflowTelemetryOptions, executor
input and output are logged as JSON-serialized attributes in the
executor.process activity.

New activity tags:
- executor.input: JSON serialized input message
- executor.output: JSON serialized output result (non-void only)

Added suppression attributes for AOT/trimming warnings since this is
an opt-in feature for debugging/diagnostics.

* Refactor activity start methods to centralize tagging logic

Move tagging logic into WorkflowTelemetryContext methods:
- StartExecutorProcessActivity now accepts executorId, executorType,
  messageType, and message; sets all tags including executor.input
  when EnableSensitiveData is true
- Added SetExecutorOutput method to set executor.output after execution
- StartMessageSendActivity now accepts sourceId, targetId, and message;
  sets all tags including message.content when EnableSensitiveData is true

Simplified Executor.cs and InProcessRunnerContext.cs by removing
inline tagging code. Added message.content tag constant.

* Revert Python changes

* Update samples and code cleanup

* Fix file formatting

* Add comment

* Add telemetry configuration to declarative workflow

* Remove delays in tests

* Address comments

Tao Chen · 2026-02-09 23:10:50 +00:00

e3b4b6662b

.NET: [BREAKING] Add ability to mark the source of Agent request messages and use that for filtering (#3540 )

* Add ability to mark the source of Agent request messages and use that for filtering

* Add support for source, in addition to source type, and add unit tests for automatic stamping

* Address PR comments.

* Add merge fixes

* Address PR comments

westey · 2026-02-09 16:53:01 +00:00

ad0dac3c86

.NET: Introduce Core implementation methods for session methods on AIAgent (#3699 )

* Introduce Core implementation methods for session methods on AIAgent

* Update changelog

westey · 2026-02-06 13:25:20 +00:00

ac17adb595

.NET: [BREAKING] Provide agent and session to AIContextProvider & ChatHistoryProvider (#3695 )

* Add a StateBag to AgentSession and pass Agent and AgentSession to AIContextProvider and ChatHistoryProviders

* Remove statebag code from this branch, to get the refactoring out of the way first

* Apply suggestion from @rogerbarreto

Co-authored-by: Roger Barreto <19890735+rogerbarreto@users.noreply.github.com>

* Apply suggestion from @westey-m

* Apply suggestion from @westey-m

---------

Co-authored-by: Roger Barreto <19890735+rogerbarreto@users.noreply.github.com>

westey · 2026-02-05 15:58:41 +00:00

ec82ed15d2

.NET: Fix Error 404 Agent Hosted MCP (#3678 )

* Initial plan

* Fix issue #3195: Handle empty Version and ID in Azure AI agent responses

This fix addresses the issue where hosted MCP agents (like AgentWithHostedMCP)
fail with "ID cannot be null or empty (Parameter 'id')" error when deployed
to Azure AI Foundry.

Changes:
- Add CreateAgentReference helper method in AzureAIProjectChatClient that defaults
  empty version to "latest"
- Update CreateChatClientAgentOptions to generate a fallback ID from name and version
  when AgentVersion.Id is null or empty
- Add GetAgentVersionResponseJsonWithEmptyVersion and GetAgentResponseJsonWithEmptyVersion
  test data methods
- Add unit tests for empty version handling scenarios

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Address code review feedback: improve documentation and test comments

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Address PR review: Use IsNullOrWhiteSpace and add whitespace unit tests

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

Roger Barreto · 2026-02-05 13:39:59 +00:00

2b66ca03b2

.NET: [BREAKING] Remove UserInputRequests property (#3682 )

* Remove UserInputRequests property

* Fix formatting issue.

westey · 2026-02-05 12:07:07 +00:00

aa88195dcd

.NET: Adding AgentRunContext to allow accessing agent run info in external downstream components (#3476 )

* Add an AsyncLocal AgentRunContext

* Update AgentRunContext session naming

* Make AgentRunContext readonly and add ADR

* Make session nullable and add unit tests

* Add unit tests for setting the context in AIAgent

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Fix sample in ADR

* Fix broken unit test

* Add unit test for checking if middleware can access AgentRunContext

* Fix build error after merge.

* Fix AgentRunContextTests after merge from main

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

westey · 2026-02-05 09:45:24 +00:00

de80543302

[BREAKING] Obsoleting ReflectingExecutor in favor of source gen (#3380 )

* Initial working version with tests.

* Updates to validate class data once instead of for each handler method. Also updated Diagnostics Ids to format of MAFGENWF{NUM}

* Formatting and trying to fix generation project pack.

* Another atempt at getting the genrators project to build.

* More attempts to fix generator build and pack.

* Fixing file encodings.

* Initail round of cleanup.

* Trying to fix packing.

* Still trying to fix pipeline pack.

* Remove obsolescence markers, sample updates, and docs from generator branch.

This commit separates the generator core functionality from the
deprecation of ReflectingExecutor. The removed changes will be
re-added in a dependent branch (wf-obsolete-reflector).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Mark ReflectingExecutor and IMessageHandler as obsolete.

This commit deprecates the reflection-based handler discovery approach
in favor of the new [MessageHandler] attribute with source generation.

Changes:
- Add [Obsolete] to ReflectingExecutor<T>, IMessageHandler<T>, IMessageHandler<T,R>
- Add #pragma to suppress warnings in internal reflection code
- Update Concurrent sample to use new [MessageHandler] pattern
- Add Directory.Build.props for samples to include generator
- Add documentation files explaining the migration

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Obsoleteing Reflector-based workflow code generation in favor of Source Generators and updating some samples to use new pattern.

This commit deprecates the reflection-based handler discovery approach
in favor of the new [MessageHandler] attribute with source generation.

Changes:
- Add [Obsolete] to ReflectingExecutor<T>, IMessageHandler<T>, IMessageHandler<T,R>
- Add #pragma to suppress warnings in internal reflection code
- Update Concurrent sample to use new [MessageHandler] pattern
- Add Directory.Build.props for samples to include generator
- Add documentation files explaining the migration

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Cleaning up temporary design and progress files.

---------

Co-authored-by: alliscode <bentho@microsoft.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>

Ben Thomas · 2026-02-04 20:07:43 +00:00

907654a489

.NET: [BREAKING] Rename session state json param (#3681 )

* Rename session state json param to ensure consistency

* Fix merge failures and PR comments.

westey · 2026-02-04 18:54:10 +00:00

a2d1e69652

.NET: [BREAKING] Move AgentSession.Serialize to AIAgent (#3650 )

* Move AgentSession.Serialize to AIAgent

* Address PR comments.

* Improve code and fix unit test

* Update test agents to return a default json element instead of throwing where the the result of the serialization is never used.

* Update further tests to actually serialize the session

westey · 2026-02-04 15:52:15 +00:00

6255abd687

.NET: [BREAKING] Rename GetNewSession to CreateSession (#3501 )

* Rename GetNewSession to CreateSession

* Address copilot feedback

* Suppress warning

* Suppress warning

* Fix further warnings.

westey · 2026-02-03 11:33:50 +00:00

6fdf6111e6

.NET: Workflows - Support fidelity when converting to and from ChatMessage in declarative workflows (#3505 )

* Builds locally and tests pass

* Fix typo

* Updated

* Updated

* Fixed tests failing on net472 but not on dotnet10

---------

Co-authored-by: Chris Rickman <crickman@microsoft.com>

Peter Ibekwe · 2026-01-30 17:14:24 +00:00

ff7041b990

.NET - [Breaking]: Update Declarative Object Model + Dependencies (#3017 )

* Builds locally and tests pass

* Fix typo

* Reverted nuget config change to remove internal feed and map to new public object model package with renames.

* Renaming Bot object model in additional sample.

---------

Co-authored-by: Peter Ibekwe <peibekwe@microsoft.com>

Chris · 2026-01-28 20:00:37 +00:00

75a8335af5

.NET: Python: [BREAKING] Renamed Github to GitHub (#3486 )

* Renamed Github to GitHub

* Small fix

* Updated package versions

Dmytro Struk · 2026-01-28 19:58:31 +00:00

45a020be43

fix: FileSystemJsonCheckpointStore does not flush to disk on Checkpoint creation (#3439 )

Jacob Alber · 2026-01-27 19:53:40 +00:00

5ef12a2341

Expose metadata from A2AAgent and seal AIAgentMetadata (#3417 )

westey · 2026-01-27 19:05:24 +00:00

e6ce398b41

.NET: Add AIAgent implementation for GitHub Copilot SDK (#3395 )

* Initial plan

* Add GitHub Copilot SDK AIAgent implementation with tests

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Add projects to solution and fix sample imports

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Improve pragma comment clarity in GithubCopilotAgentThread

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Address PR feedback: internal constructor/setter, remove CopilotClientOptions ctor, streaming improvements, better sample, container warning

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Add ownsClient parameter to allow caller control over client disposal

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Fix unit tests by removing await using to avoid StreamJsonRpc disposal issues

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Fix file encoding: add UTF-8 BOM to Program.cs

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Fix dotnet-format errors: UTF-8 BOM, remove unused logger, add this qualifier, remove unnecessary usings

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Fix test file encoding and remove redundant cast

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Add AsAIAgent extension methods for CopilotClient with tests

Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>

* Remove IL suppressions, use TryComplete for channel writer, remove TCS from streaming

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Keep session alive across calls, add tools overload, add tests

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Revert session persistence changes - sessions dispose after each call

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Add CreatedAt property mapping using DateTimeOffset.UtcNow

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Add DataContent handling via temp files and attachments

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Fix formatting: remove extra indentation, simplify Path references, remove unused using

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Refactor: extract helper methods to reduce duplication in DataContent handling

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Updated sample and session config mapping

* Added instructions parameter

* Updated README

* Address PR feedback: reorder params, optimize dictionary, update prefix, remove InternalsVisibleTo, update sample prompts, add defaults

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Remove StreamJsonRpc reference from sample project

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Fix parameter ordering: tools now after description, rename to s_mediaTypeExtensions, simplify extension logic, update prompts, fix test expectations

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Fix streaming prompt: change Python to C# for Fibonacci example

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Handle all SDK events, add UsageContent support, fix model name, remove AutoStart, add using for Channels

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Resolved build errors

* Addressed comments

* Small fix

* Addressed comment

* Small fix

* Addressed comments

* Added integration tests

* Small update

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: westey-m <164392973+westey-m@users.noreply.github.com>
Co-authored-by: Dmytro Struk <13853051+dmytrostruk@users.noreply.github.com>
Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

Copilot · 2026-01-27 18:51:56 +00:00

e82d9f5e45

.NET: [BREAKING] Rename AgentThread to AgentSession (#3430 )

* Rename AgentThread to AgentSession

* Add more renames

* Update readme files

* Revert nullable variable change and further fixes.

* Revert change in header name

* Fix some comments and tests

* Update changelog.

* Address PR feedback.

* Fixing code review comments.

* Fix new errors after merging latest code.

westey · 2026-01-26 16:30:25 +00:00

a3a9147e61

.NET: [BREAKING] feat: Improve Agent hosting inside Workflows (#3142 )

* refactor: Rename AggregateTurnMessagesExecutor

* feat: Rework Agent Hosting for Configurability and HIL support

* Adds support for selecting whether updates and/or full responses are
  emitted to events
* Adds support for HIL/FunctionCalls (including interception)
* Implements internal support for ExternalRequests from any executor
  (not just RequestPort)

* test: Add tests for new AIAgentHostExecutor functionality

* feat: Unify non-Handoff Agent Hosting

* doc: More explicit documentation for `overwrite` in RouteBuilder

Jacob Alber · 2026-01-23 19:45:29 +00:00

6e8c7c42c8

.NET: Rename ChatMessageStore to ChatHistoryProvider (#3375 )

* Rename ChatMessageStore to ChatHistoryProvider

* Fix merge issue

* Fixed PR comments

* Fix tests after property rename

* Add unit tests and fix merge issues

* Fix encoding

westey · 2026-01-23 15:49:01 +00:00

21e00c054b

.NET: Allow overriding the ChatMessageStore to be used per agent run. (#3330 )

* Allow overriding the ChatMessageStore to be used per agent run.

* Fix typos

* Fix Add and add TryAdd, Contains and Remove

westey · 2026-01-23 12:44:29 +00:00

90164a6bc1

Adding ReflectExecutors method to Workflow. (#3389 )

Shyju Krishnankutty · 2026-01-22 23:21:22 +00:00

9f893a32a6

.NET: Improve unit test coverage for Microsoft.Agents.AI.OpenAI (#3349 )

* Initial plan

* Add unit tests for Microsoft.Agents.AI.OpenAI to improve code coverage

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Address code review feedback: remove unused using directives

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Fix format issues: file encoding and remove unused using directives

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Fix redundant cast error by using named parameter

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Remove excessive inline comments per PR review feedback

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

Copilot · 2026-01-22 16:48:52 +00:00

958e6d27ce

Python: .NET: Executor source gen for workflow executor routing (#3131 )

* Roslyn Source Generators for Workflow Executor Routing.

* Update dotnet/src/Microsoft.Agents.AI.Workflows.Generators/ExecutorRouteGenerator.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* WIP.

* All fixed up except dangling sends/yields attriutes, working on that next.

* Add protocol-only generation for SendsMessage/YieldsOutput attributes

* Ensuring collections that can change order are sorted to enable pipeline caching.

* Improvents per PR feedback.

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Co-authored-by: alliscode <bentho@microsoft.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Ben Thomas · 2026-01-22 16:02:12 +00:00

ea7818d390

fix: Subworkflows do not work well with HostAsAgent (#3240 )

Subworkflows run into issues with Checkpointing and the Chat Protocol:

* The concurrency rework made subtle changes in behaviour that introduced a hang when using subworkflows with ChatProtocol and streaming execution.
* The ResetAsync() implementation in WorkflowHostExecutor was improperly resetting the joinContext - this was happening on restore checkpoint _after_ the join context was attached when
* Subworkflows cannot be used as the start node when hosted AsAgent due to inability to treat Catch-All as a Chat Protocol
* Subworkflow ownership issue when used in non-concurrent mode after finishing a run

Also fixes:
* When ChatMessages are output by executors that are not agents, there is no corresponding AgentResponseUpdate/AgentResponse event

Breaking Changes
* [BREAKING CHANGE] It is possible to provide the wrong RunId when resuming from CheckpointInfo (even though the data already exists on CheckpointInfo)

Jacob Alber · 2026-01-22 16:01:47 +00:00

4940d0ef36

.NET: [Breaking] Allow passing auth token credential to cosmosdb extensions (#3250 )

* allow passing token credentials to cosmosdb extensions

* Update dotnet/src/Microsoft.Agents.AI.CosmosNoSql/CosmosDBWorkflowExtensions.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update dotnet/src/Microsoft.Agents.AI.CosmosNoSql/CosmosDBWorkflowExtensions.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update dotnet/src/Microsoft.Agents.AI.CosmosNoSql/CosmosDBChatExtensions.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

SergeyMenshykh · 2026-01-22 11:30:58 +00:00

f47645cdc8

.NET: Fix DebuggerDisplay attribute in AIAgent.cs to reference existing properties (#2985 )

* Initial plan

* Fix DebuggerDisplay attribute in AIAgent.cs to reference existing properties

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
Co-authored-by: Roger Barreto <19890735+rogerbarreto@users.noreply.github.com>

Copilot · 2026-01-21 13:50:59 +00:00

6f1ab66795

.Net: Fix DebuggerDisplay attribute to reference existing property (#3326 )

* Initial plan

* Fix DebuggerDisplay attribute to use Name instead of DisplayName

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

Copilot · 2026-01-21 11:42:01 +00:00

eac8baac09

.NET: Durable Agent samples and automated validation for non-Azure Functions (#3042 )

* Durable Agent samples and automated validation for non-Azure Functions

* Update test projects

* fix file encoding

* Remove AgentThreadMetadata usage

* Absorb breaking change from #3152

* Absorb newer breaking changes (AgentRunResponse --> AgentResponse)

* Absorb more breaking changes (see #3222)

* Improve integration test reliability (isolated task hubs, etc.)

* Fix flakey streaming test

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Co-authored-by: Mark Wallace <127216156+markwallace-microsoft@users.noreply.github.com>

Chris Gillum · 2026-01-20 22:45:10 +00:00

db8a59bd3d

.NET: Pass AdditionalProperties from parent to child when exposing an agent as a FunctionTool (#3219 )

* Pass AdditionalProperties from parent to child when exposing an agent as a FunctionTool

* Rename variable to improve readability.

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

westey · 2026-01-20 18:20:08 +00:00

73761aa4a3

.NET: Delete sync extension methods for agent (#3291 )

* Delete sync extension methods for agent

* Fix comments and obsolete attribute

* Remove more sync methods.

* Fix naming and comments.

* Fix unit tests

westey · 2026-01-20 11:24:58 +00:00

3ec881509c

.NET Purview Middleware: Improve Background Job Runner Injection (#3256 )

* Clean up background job dependency injection

* Fix xml documentation grammar

eoindoherty1 · 2026-01-16 19:20:35 +00:00

a151f10cc2

.NET: [BREAKING] Renamed CreateAIAgent/GetAIAgent to AsAIAgent (#3222 )

* Renamed chat client extension method

* Additional renaming

* Updated documentation

* Fixed tests

* Small fix

* Small fix

Dmytro Struk · 2026-01-15 16:01:15 +00:00

2ab859dd94

.NET: Merge AgentRunOptions.AdditionalProperties into ChatOptions.AdditionalProperties (#3184 )

* Merge AgentRunOptions.AdditionalProperties into ChatOptions.AdditionalProperties

* Fix namespace and typo.

westey · 2026-01-15 12:15:24 +00:00

3dbdecedda

.NET: [Breaking] Rename AgentRunResponseEvent and AgentRunUpdateEvent classes (#3214 )

* rename AgentRunResponseEvent and AgentRunUpdateEvent classes

* rollback unnecessary changes

SergeyMenshykh · 2026-01-14 17:44:35 +00:00

f56808b279

.NET: [Breaking] RenameAgentRunResponse and AgentRunResponseUpdate classes (#3197 )

* rename AgentRunResponse and AgentRunResponseUpdate classes - part1

* rename varialbles, parameters, methods and tests

* rollback unnecessary changes

SergeyMenshykh · 2026-01-14 10:27:41 +00:00

c70e594e6c

.NET: Make ChatMessageStore and AIContextProvider context props settable (#3196 )

* Make ChatMessageStore and AIContextProvider context props setable

* Add validation to preserve non-null requirement of certain properties.

* Fix broken tests.

westey · 2026-01-13 19:47:57 +00:00

c063fc77e6

Implement IReadOnlyList on InMemoryChatMessageStore (#3205 )

westey · 2026-01-13 19:47:23 +00:00

04657c207a

396 Commits