agent-framework

.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: [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

.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: Improve unit test coverage for Microsoft.Agents.AI.Abstractions (#3381 )

* Initial plan

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

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

* Fix file encoding and naming rule violation in new test files

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

* Remove ChatMessageStoreExtensionsTests.cs to avoid duplication with Wesley's work

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

* Fix AgentThread to AgentSession rename in unit tests

Update MockAgentWithName in AIAgentTests.cs and DelegatingAIAgentTests.cs
to use the renamed AgentSession class and corresponding methods:
- AgentThread -> AgentSession
- GetNewThreadAsync -> GetNewSessionAsync
- DeserializeThreadAsync -> DeserializeSessionAsync
- thread parameter -> session parameter

* Fix: Rename GetNewSessionAsync to CreateSessionAsync to match API changes

* Fix: Add SerializeSession override and remove async from DeserializeSessionAsync

---------

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

Copilot · 2026-02-04 17:43:31 +00:00

e8902c0d11

.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: [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: 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

.NET: Update Microsoft.Extensions.AI.* packages to 10.2.0 (#3211 )

* Initial plan

* Update Microsoft.Extensions.AI.* to 10.2.0 and fix timestamp behavior tests

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

---------

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

Copilot · 2026-01-20 17:52:58 +00:00

742937194a

.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: [BREAKING] Change GetNewThread and DeserializeThread to async (#3152 )

* Change GetNewThread and DeserializeThread plus ChatMessageStore and AIContextProvider Factories to async

* Merge fixes

westey · 2026-01-12 11:25:51 +00:00

bb6ecd9c71

.NET: [Breaking] Prevent loss of input messages & streamed updates when resuming streaming (#2748 )

* save input messages and stream updates to the continuation token to be able to use them in the last successful stream resumption call.

* Update dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentContinuationToken.cs

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

* Update dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentContinuationToken.cs

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

* Update dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ChatClientAgent_BackgroundResponsesTests.cs

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

* Update dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentContinuationToken.cs

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

* Update dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentContinuationToken.cs

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

* fix typo

* init continuation token from chat response

* remove unnecessary types for source generation

* remove check for continuation token passed at initial run

* remove check for continuation token pass at initial run

* centralize continuation token parsing

* update xml comments

* use readonly collection instead of enumerable

---------

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

SergeyMenshykh · 2026-01-08 17:31:13 +00:00

7aa72f6fdb

.NET: Seal factory contexts and add non JSO deserialize overloads (#3066 )

* Seal factory contexts and add non JSO deserialize overloads

* Apply suggestions from code review

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

---------

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

westey · 2026-01-07 11:40:39 +00:00

dd69cabc67

.NET: [BREAKING] Refactor ChatMessageStore methods to be similar to AIContextProvider and add filtering support (#2604 )

* Refactor ChatMessageStore methods to be similar to AIContextProvider

* Fix file encoding

* Ensure that AIContextProvider messages area also persisted.

* Update formatting and seal context classes

* Improve formatting

* Remove optional messages from constructor and add unit test

* Add ChatMessageStore filtering via a decorator

* Update sample and cosmos message store to store AIContextProvider messages in right order. Fix unit tests.

* Update Workflowmessage store to use aicontext provider messages.

* Apply suggestions from code review

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

* Apply suggestions from code review

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Improve xml docs messaging

* Address code review comments.

* Also notify message store on failure

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

westey · 2026-01-05 11:51:15 +00:00

3ef67eff10

.NET: [Breaking] Introduce RunCoreAsync/RunCoreStreamingAsync delegation pattern in AIAgent (#2749 )

* Initial plan

* Refactor AIAgent: Make RunAsync and RunStreamingAsync non-abstract, add RunCoreAsync and RunCoreStreamingAsync

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Fix infinite recursion in test implementations

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Make RunAsync and RunStreamingAsync non-virtual as requested

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Fix DelegatingAIAgent subclasses to use RunCoreAsync/RunCoreStreamingAsync

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Fix XML documentation references in AnonymousDelegatingAIAgent

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Restore <see cref> tags with proper qualified signatures in AnonymousDelegatingAIAgent

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Rollback unnecessary XML documentation changes in AnonymousDelegatingAIAgent

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Remove pragma and update crefs to RunCoreAsync/RunCoreStreamingAsync

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* Fix EntityAgentWrapper to call base.RunCoreAsync/RunCoreStreamingAsync

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

* fix compilation issues

* fix compilatio issue

* fix tests

* fix unit tests

* fix unit test

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>
Co-authored-by: SergeyMenshykh <sergemenshikh@gmail.com>
Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>

Copilot · 2025-12-30 12:24:09 +00:00

8b4f7d5e29

.NET: [BREAKING] Prevent nulls in AIAgent property (#2719 )

* prevent nulls in AIAgent property

* address feedback

SergeyMenshykh · 2025-12-11 09:50:25 +00:00

989b6ebe71

Remove unnecessary PackageReferences after .NET 10 update (#2394 )

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

Stephen Toub · 2025-12-04 00:09:51 +00:00

9c2e800189

[BREAKING] Remove NotifyThreadOfNewMessagesAsync AIAgent helper (#2450 )

* Remove NotifyThreadOfNewMessagesAsync helper from AIAgent

* Fix bug

* Update comment

westey · 2025-11-25 11:59:26 +00:00

b6c3b8d3f2

.NET: Change type of props representing continuation token (#2430 )

* change type of props representing continuation token

* use explict cast instead of the as operator

SergeyMenshykh · 2025-11-25 09:59:43 +00:00

a89c15d6e6

Update to latest MEAI 10.0.1 and OpenAI 2.7.0 (#2392 )

Stephen Toub · 2025-11-24 13:51:27 +00:00

a116edaf5a

.NET: Upgrade to .NET 10 (#2128 )

* Upgrade to .NET 10

- Require .NET 10 SDK
- Include net10.0 assets in all assemblies
- Move net9.0-only targets to net10.0
- Update LangVersion to latest
- Remove complicated distinctions between debug target TFMs and release target TFMs
- Remove unnecessary package dependencies when built into netcoreapp
- Clean up some ifdefs
- Clean up some analyzer warnings

* Fix CI

Stephen Toub · 2025-11-22 04:14:15 +00:00

dc2b109b50

Fix InMemoryChatMessageStore serialization bug. (#2185 )

westey · 2025-11-13 15:43:01 +00:00

f273ca7353

.NET: Allow extending agent run options via additional properties (#1872 )

* Allow extending agent run options via additional properties

This mirrors the M.E.AI model in ChatOptions.AdditionalProperties which is very useful when building functionality pipelines.

Fixes https://github.com/microsoft/agent-framework/issues/1815

* Expand XML documentation

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

* Add AdditionalProperties tests to AgentRunOptions

Co-authored-by: kzu <169707+kzu@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: kzu <169707+kzu@users.noreply.github.com>

Daniel Cazzulino · 2025-11-11 20:00:59 +00:00

180f82373b

.NET: Fix the ordering of chained resolvers in JsonSerializerOptions (#1974 )

* Fix the ordering of chained resolvers in JsonSerializerOptions

We want the resolvers from AIJsonUtilities to be used before the ones from the source generator, in case the source generator emits its own copy in that assembly for the M.E.AI types.

* Apply suggestions from code review

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

* Update dotnet/src/Microsoft.Agents.AI/AgentJsonUtilities.cs

* Update dotnet/src/Microsoft.Agents.AI.Mem0/Mem0JsonUtilities.cs

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

* Remove unused using directive in Mem0JsonUtilities

Removed unused using directive for Microsoft.Extensions.AI.

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>

Stephen Toub · 2025-11-06 22:23:37 +00:00

820c6afe09

.NET: [BREAKING] Fix issue where AIContextProvider messages were not added to MessageStores (#1788 )

* Fix issue where AIContextProvider messages were not added to MessageStores

* Fix typos

* Update XML docs to reduce ambiguity.

* Update AIContext XML docs

* Fix merge issue

westey · 2025-10-30 11:55:48 +00:00

fb7086b2e0

.NET: Add support for background responses (#1501 )

* add support for background responses

* Update dotnet/src/Microsoft.Agents.AI.Abstractions/AgentRunResponseUpdate.cs

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

* fix broken link

* fix xml comments and background responses properties override funcitonity

* change ai model provider

* use Run{Streaming}Async overloads that don't require messages

* stop using m: prefix in cref attribute of <see/> element.

* reject input messages provided with continuation token + don't extract messages from message store and context provide if continuation token is provided

* use agent thread for background-responses sample

* require agent thread for background responses

* Update dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgent.cs

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

* Update dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgent.cs

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

* remove CA1200

* Update dotnet/src/Microsoft.Agents.AI.Abstractions/AgentRunOptions.cs

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

* Update dotnet/src/Microsoft.Agents.AI.Abstractions/AgentRunResponse.cs

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

* Update dotnet/src/Microsoft.Agents.AI.Abstractions/AgentRunResponse.cs

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

* address pr review comments

* Update dotnet/samples/GettingStarted/Agents/Agent_Step17_BackgroundResponses/Program.cs

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

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Roger Barreto <19890735+rogerbarreto@users.noreply.github.com>
Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>

SergeyMenshykh · 2025-10-22 17:43:57 +00:00

1bf520a7c2

Force source generation tests in .net core (#1298 )

westey · 2025-10-17 14:58:50 +00:00

e7a9128138

Update to M.E.AI 9.10 (#1461 )

And other System.*/Microsoft.Extensions.* updated today

Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>

Stephen Toub · 2025-10-15 08:33:33 +00:00

ab450078ab

Removing duplicating update coalescing logic in AgentRunResponseExtensions (#1169 )

Stephen Toub · 2025-10-07 13:42:01 +00:00

959e5842c2

Fix createdAt merging for agent run updates (#1161 )

westey · 2025-10-03 16:04:06 +00:00

3ee7461b59

Tweak AgentAbstractionsJsonUtilities to better match AIJsonUtilities (#1094 )

Functional change includes setting the encoder used by the options and employing JsonStringEnumConverter.

Stephen Toub · 2025-10-02 05:19:27 +00:00

3ae9065b6b

.NET: Re-enable ImplicitUsings in samples and clean up NoWarns (#1060 )

* Re-enable ImplicitUsings in samples and clean up NoWarns

* Fix dotnet format

* More dotnet format

* More dotnet format

---------

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

Stephen Toub · 2025-10-01 19:37:03 +00:00

a414461570

.NET: Make serialize methods sync and rename one to match others. (#946 )

* Make serialize methods sync and rename one to match others.

* Remove unnecessary async postfixes.

* Remove nullability of ChatMessageStore.Serialize return type, since the default JsonElement already represents an undefined json element.

* Fix unit test

westey · 2025-09-29 09:32:01 +00:00

bf5931932e

.NET: Change Runtime namespaces to Microsoft.Agents.AI.Runtime (#957 )

* Rename MEAI.Runtime to MAAI.Runtime.

* Missed.

Aditya Mandaleeka · 2025-09-27 06:10:14 +00:00

28ad256931

Rename AI Agent packages to use Microsoft.Agents.AI (#913 )

* Rename AI Agent packages to use Microsoft.Agents.AI

* Fix for build

* Fix formatting

* Fix formatting

* Ignore in VSTHRD200 in migration samples

* Ignore in VSTHRD200 in migration samples

* Add some missing projects and run format

* Fix build errors

* Address code review feedback

* Fix merge issues

---------

Co-authored-by: Mark Wallace <markwallace@microsoft.com>

Mark Wallace · 2025-09-25 19:31:25 +00:00

32e054f1fe

39 Commits