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  • .Net: WIP: feat: Define Workflow and Executor APIs (#261) 
    * feat: Define Workflow and Executor APIs

* feat: Define IExecutionContext and Events

* feat: Simple Workflow Demos

* refactor: Move Workflows classes to separate assembly

* feat: Move FanOut/In to LowLevel API with new semantics

* feat: Implement Local Execution

* refactor: Assembly name .Workflow => .Workflows

* feat: Enable Default Message Handling

* also lifts Bind in MessageHandlerInfo to better be able to direclty invoke handlers (for AOT, later)

* feat: Implement StreamingHandle APIs

This allows the user to respond to WorkflowEvents with external messages, enabling HIL.

* feat: Add checks for duplicate edges and chain cycles

* feat: Add built-in WorkflowEvents

* refactor: Pull classes into own files

* refactor: Simplify Disposal pattern in Executor

* refactor: Break EdgeRunner file into per-type files

* refactor: Use Throw.IfNull()

* refactor: Remove AddLoop()

Per https://github.com/microsoft/agent-framework/pull/272#discussion_r2241739079 we decided this was not very useful.

* refactor: Normalize use of ValueTask

* fix: Build Break from removing .AddLoop

* refactor: Explicit routing and RouteBuilder

Split out reflection from MessageRouter implemention into build phase, enabling AOT compilation to drive RouteBuilding without reflection.

* test: Add Reflection/Invocation tests

* fix: Terminate on Completion event

* refactor: Update public API surface

* feat: Add support for external requests

* feat: Support hosting AIAgent instances in Workflows

* fix: Fix routing to go through Executor.ExecuteAsync

* test: Update samples for "must SendMessage" semantics

* Add invoking samples to unit tests to avoid future breaks

* fix: ExternalRequest should block Workflow completion

* feat: Normalize API surface against Python

* Also adds xmldoc to all public APIs

* refactor: Normalize UnitTest and Sample namespaces

* fix: Formatting

* refactor: Normalize project/folder names

* feat: Remove DynamicCodeExecution from ValueTaskTypeErasure

* fix: Fix ILTrim warnings

* docs: Add missing docs and fix typos

* feat: Hosted Agents should report Run events

* fix: Fix type propagation for ILTrim changes

* refactor: Simplify DynamicallyAccessedMembers annotations

* sample: Use static-Type construction of InputPort

* feat: Support non-Streaming Run Mode

* test: Add test for non-streaming execution

* refactor: Remove unused types

* refactor: Simplify Event and EdgeData type hierarchies

* feat: Add Switch (=Conditional Edge Group) control flow

* feat: Make .NET AutoSend the MessageHandler result

* feat: Implement State APIs

* refactor: Simplify public namespaces and code organization

* refactor: Reconcile .NET and Python names

---------

Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>
    Jacob Alber · 2025-08-13 22:34:39 +00:00
    32711cfa95
  • .NET: Avoid double responses when streaming (#365) 
    * Avoid double responses when streaming.

* Fix tests.
    Aditya Mandaleeka · 2025-08-06 23:10:34 +00:00
    0d4d7abde1
  • .NET: Add agent hosting package and update sample (#296) 
    * Add agent hosting package and update sample

* Review feedback and cleanup

* Include the narrator

* wip

* wip

* Remove workaround for empty state writes.

* Handle changes to AgentThread.

* One more.

* Fix.

---------

Co-authored-by: Aditya Mandaleeka <adityam@microsoft.com>
    Reuben Bond · 2025-08-06 21:26:36 +00:00
    e7441ee29e
  • Fix etag handling on read before write. (#351)
    Aditya Mandaleeka · 2025-08-06 15:31:32 +00:00
    8dcc8533a6
  • .Net: Add support for 3rd party thread storage and thread serialization (#203) 
    * Add thread storage and serialization POC

* Switch to using JsonElement and add unit tests

* Add additional unit tests.

* Exclude private debugger properties from CodeCoverage.

* Rename IChatMessagesStorable to IChatMessageStore

* Apply suggestions from code review

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

* Improve xml doc.

* Update the message storing thread to always use external store for both local and remote storage.

* Remove threadid from the IChatMessageStore interface, since the store should own the thread id itself, if it requires one.

* Switch GetMessages to IEnumerable

* Address pr comments.

* Make jsonserializer options default consistent on DeserializeThreadAsync

* Move message storing thread functionality into AgentThread and simplify AgentThread behavior.

* Remove embedding generation from VectorStore chat history sample.

* Remove unecessary code and fix formatting.

* Make GetNewThread and DeserializeThread virtual with default implementations.
Remove unsued json utilities.

* Fix formatting

* Remove problem test.

* Add more unit tests

* Remove unused using clause.

* Address pr feedback.

* Address PR comments.

* Make InMemory store internal

* Switch InMemoryChatMessageStore to implement IList instead of inheriting from List.

* Rename store deserialize param.

* Update serialization based on PR comments.

* Remove confusing comment.

* Address Deserialization PR comments in the same way as Serialization

* Add State to IChatMessageStore Serialize and Deserialize names.
Make Thread Deserialize internal.
Make AgentThread type switching fobidden.

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>
    westey · 2025-08-05 17:24:25 +00:00
    ff3e13c2aa
  • .NET: Clean / address some message warnings (#291) 
    * WIP

* Structured Output sample

* Update dotnet/samples/GettingStarted/Steps/Step06_ChatClientAgent_StructuredOutputs.cs

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

* Address xml and comment targeting the Structured Output context

* Update with proposed fix for Persistent ChatClient

* Address PR feedback

* Address minor warnings

* Address initialization

* Address initialization

* Address PR comments, update suggestions

* Revert changes to NullableAttributese.cs

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>
    Roger Barreto · 2025-08-05 12:55:44 +00:00
    9faa27b8eb
  • .NET: CosmosDB Actor State Storage (#262) 
    * Implement CosmosDB actor state storage.

* Fix.

* Minor fixes.

* Fixes.

* Make CosmosDB initialization be lazy.

* Remove unnecessary read from write path.

* Throw on empty writes.

* Add arg validation for read.

* Add CosmosIdSanitizer.

* Fix.

* Fix.

* Simplify doc IDs.

* Update comment.

* fb

* Make LazyCosmosContainer internal and add tests.

* Make test constants public and remove IVT.

* Use source generated JSON context for future nativeAOT support.

* Re-add dropped comments.
    Aditya Mandaleeka · 2025-08-05 00:11:49 +00:00
    f5b35d8403
  • .Net: Add Structured output ChatClientAgent samples (#250) 
    * WIP

* Structured Output sample

* Update dotnet/samples/GettingStarted/Steps/Step06_ChatClientAgent_StructuredOutputs.cs

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

* Address xml and comment targeting the Structured Output context

* Update with proposed fix for Persistent ChatClient

* Address PR feedback

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>
    Roger Barreto · 2025-07-31 11:35:29 +00:00
    139f033b05
  • Change RawRepresentation for AgentRunResponse/Update to ChatResponse/Update instead of RawRepresentation from that. (#278)
    westey · 2025-07-30 10:12:04 +00:00
    5f10bdaecd
  • Clean up handoff orchestration creation (#235) 
    - Remove Dictionary-derived types
- Add an optional name to orchestrations
- Make Handoffs based purely on AIAgent instances rather than separately provided names
    Stephen Toub · 2025-07-24 16:38:23 +00:00
    233c557173
  • Fix and simplify build (#218)
    Reuben Bond · 2025-07-23 17:45:50 +00:00
    e6aeb9a5db
  • Overhaul orchestration library with new approach (#199)
    Stephen Toub · 2025-07-23 16:29:37 +00:00
    5472d6e996
  • Initial draft of actor runtime abstractions (#197) 
    * Initial draft of actor runtime abstractions
    Reuben Bond · 2025-07-22 16:05:58 -04:00
    41d441420e
  • Add an AgentRunResponse ctor accepting a ChatResponse (#204) 
    * Add an AgentRunResponse ctor accepting a ChatResponse

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

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

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
    Stephen Toub · 2025-07-21 14:49:47 +00:00
    d964b05ae7
  • Round 3 of cleanup (#186) 
    - Enable warnings as errors
- Make the remaining src projects NativeAOT compatible
- Use Throw helpers
    Stephen Toub · 2025-07-20 23:07:50 -04:00
    6c12b2c0f8
  • Rename Agent to AIAgent and instroduce DisplayName (#201)
    westey · 2025-07-18 15:43:38 +00:00
    fc999e2be8
  • .Net: Add OpenTelemetry Support and Samples (#182) 
    * Adding sample and implementation similar to MEAI approach

* Add Telemetry UnitTests

* Fix Async suffix

* Add ADR with the proposal

* Address merge changes

* Fixing const visibility + coverage

* Increase test coverage, add metrics collection code paths

* Fix warnings

* WIp

* Convention adeherence

* Add gen-ai.system logic + UT

* Add convetion reference

* Address PR comments

* Addressing PR comments, Agent name optional

* Remove constant

* Update dotnet/src/Microsoft.Extensions.AI.Agents/ChatCompletion/ChatClientAgent.cs

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

* GetLoggingName

---------

Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>
    Roger Barreto · 2025-07-16 17:00:24 +00:00
    6e57489a44
  • Add ChatClientAgent constructor overload (#188) 
    * Add ChatClientAgent constructor overload

* Add unit tests for new constructor

* Up code coverage with extra tests

* Address PR comments.

* Address PR comment

* Add additional test to increase code coverage.
    westey · 2025-07-16 13:36:17 +00:00
    95a3264c8b
  • Removed Persistent SDK IChatClient implementation (#190)
    Dmytro Struk · 2025-07-15 17:37:42 +00:00
    fa96f74ee9
  • Allow InProcessRuntime subscriptions to be processed concurrently (#179) 
    * Allow InProcessRuntime subscriptions to be processed concurrently

* Fix tests
    Stephen Toub · 2025-07-11 21:50:51 -04:00
    80c1e2ee0a
  • Round 2 of cleanup for agent runtime and orchestrations (#164) 
    - Moved InProcessRuntime type into abstractions package and deleted InProcess package.
- Moved several members of IAgentRuntime to be extension methods instead, e.g. multiple GetActorAsync overloads.
- Added synchronous RegisterMessageHandler overloads and used them to avoid unnecessary async usage at call sites.
- Removed unnecessary surface area from InProcessRuntime, e.g. StopAsync, RunUntilIdleAsync, etc.
- Fixed spin loop in InProcessRuntime that would consume an entire core for the duration of the orchestration's operation.
- Removed a bunch of allocation from InProcessRuntime.
- Made a runtime optional for orchestrations, defaulting to using a temporary InProcessRuntime if none is provided.
- Removed custom delegate types from orchestrations.
- Consolidated namespaces.
- Used records to simplify message classes.
- Tweaked naming on AgentActor to make purpose of protected methods more clear.
- Removed invocation in AgentActor.InvokeAsync of empty update / isFinal parameter.
- Changed OrchestrationHandoffs to avoid needing to pass in agents duplicatively.
- Made various extension methods, such as those on OrchestrationHandoffsExtensions, into instance methods.
    Stephen Toub · 2025-07-11 11:12:18 -04:00
    456e7d1b65
  • Run Response ADR & Updates (#104) 
    * Add ADR for different run response options

* Add another option to the list.

* Update agno non-streaming with further clarification

* Add another option

* Adding optional includeUpdates option

* Adding Pros/Cons for each option

* Make pros/cons a list

* Add some thoughts on structured outputs and custom AIContent types

* Update design doc to clarify primary and secondary better and split out custom response types with it's own options

* Add structured outputs competitive comparison and suggestion

* Address PR comments.

* Remove AgentRunFinishReason until we can find a good use case for it.

* Add finish reason to list of excluded properties.

* Add custom agent run response types.
Usage to follow.

* Update Agent run response types

* Add additional code coverage

* Remove onIntermediateMessage since it is unecessary with the new response approach.

* Add AgentId to response.

* Rename ParseAsStructuredOutput to Deserialize

* Update decision doc.

* Fix formatting.

* Update CopilotStudio to return new response types

* Address PR comment

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

---------

Co-authored-by: Roger Barreto <19890735+rogerbarreto@users.noreply.github.com>
    westey · 2025-07-11 11:39:18 +00:00
    715769e649
  • Set CopilotStudio integration tests to manual run only. (#166)
    westey · 2025-07-11 10:58:37 +00:00
    33d09d263b
  • Add PoC CopilotStudio agent (#84) 
    * Add project and skeleton files.

* Add CopilotStudioAgent implementation

* Add CopilotStudio integration tests

* Fix typos and PR feedback.

* Fix .net framework build errors.

* Address PR comments

* Remove temp test.

* Add rawresponse for streaming updates and more comments.

* Add TODO to review streaming updates

* Address PR comments and fix some issues with streaming messages.

* Map additional properties to agent reponses

* Update CopilotStudio integration tests to match new approach.

* Update copilot studio namespaces/project names to match new naming

* Add todo's for AIContent types.

* Remove files from PR.

* Fix up sln file.

* Update .gitignore.

* Remove duplicate package version items.
    westey · 2025-07-11 09:20:40 +00:00
    b708e2507d
  • .Net: Update Code Interpreter Sample as a Step. (#148) 
    * Updating code interpreter samples

* Small adjustments to ensure it works as expected

* Update dotnet/samples/GettingStarted/Steps/Step03_ChatClientAgent_UsingCodeInterpreterTools.cs

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

* Address xmldoc

* Addressing PR coment, external implementaions + ChatClients update, removing RawRepresentationFactory requirement

* Address warnings

* Update Fix warnings

* Proposed changes for the OpenAIAssistantChatClient

* Address PR comments

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Mark Wallace <127216156+markwallace-microsoft@users.noreply.github.com>
    Roger Barreto · 2025-07-10 15:26:41 +00:00
    fef4fd2c18
  • Remove instructions from base agent type, and ensure description is only required where necessary. (#154) 
    * Remove instructions from base agent type, and ensure description is only required where necessary.

* Fix code issue.

* Remove unused import.

* Remove typo

* Make the description parameter optional

* Also use name for handoffs if no description is provided.
    westey · 2025-07-10 13:06:45 +00:00
    bc6573f475
  • First round of cleanup of runtime abstractions (#156)
    Stephen Toub · 2025-07-10 07:57:51 -04:00
    fbf1f10a8a
  • Port Agent Runtime abstractions / inprocess runtime (#149)
    Stephen Toub · 2025-07-09 09:08:45 -04:00
    4a0f8dcbe0
  • .NET Port Agent Orchestration (#107) 
    * Checkpoint

* Checkpoint

* Namespaces

* Namespace

* Cleanup

* Namespace order

* Fix sync

* Formatting

* Formatting

* Namespace

* Namespace order

* Code convention

* Naming

* Naming

* Text handling

* Text handling

* Namespace

* Namespace order

* Namespace ordering

* Test

* ValueTask

* net472

* Test fix

* Fix namespace (net472)

* Namespace

* Fix conditional namespace

* Fix type expression

* Compatibility and cleanup

* Sample compatibility

* Sample compat

* Test compat

* modifier order

* Simply http-stub

* Formating fix for unit-test

* Fix test

* Real fix

* Test clean-up

* Update dotnet/src/Microsoft.Agents.Orchestration/Handoff/HandoffOrchestration.cs

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

* Fix build errors after merging

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Stephen Toub <stoub@microsoft.com>
    Chris · 2025-07-08 13:04:34 -04:00
    7c8ec5ec19
  • Fix warnings (#133)
    Roger Barreto · 2025-07-07 15:12:02 +00:00
    d6c829cddf
  • Renaming to use Microsoft.Extensions prefix (#120) 
    * Rename the folders

* Rename the .csproj files

* Some build file updates

* Update namespaces

* Fix order of imports

* Fix order of imports

* Fix order of imports
    Mark Wallace · 2025-07-01 08:15:28 +00:00
    95738b0ac2
  • .Net: Agent Samples - Adding AzureAIAgentsPersistent to Steps (#105) 
    * Adding Persistent Agent to Steps

* Add comments

* Ensure changes

* Fix format

* Fix formatting

* Adding cancellation token good practice
    Roger Barreto · 2025-06-26 22:17:59 +00:00
    b46ee00468
  • .Net: Add Reasoning Model Integration tests (#100) 
    * Add reasoning integration tests

* Adding Reasoning Model config
    Roger Barreto · 2025-06-25 19:50:29 +00:00
    06a690685f
  • Suggested tweaks to Agent (#88) 
    - Id should return a stable ID, not a different value per access
- The RunAsync virtuals needn't be virtuals... a derived type can/should override just the main worker abstract method
- The protected methods should do argument validation
    Stephen Toub · 2025-06-24 15:57:40 +00:00
    e7b559fa62
  • Add function call integration tests (#90) 
    * Add function call tests

* Address PR comment
    westey · 2025-06-23 09:02:17 +00:00
    5f2af80735
  • Remove AdditionalInstructions from AgentRunOptions since it is not well supported outside of ChatClientAgents (#87) 
    * Remove additional instructions from AgentRunOptions since it is not well supported outside of ChatClientAgents

* Fix typos and remove unused test.

* Make further namespace fixes and update AzureAIAgent with new tests.

* Expand tests to increase code coverage
    westey · 2025-06-20 11:54:37 +00:00
    578b35723a
  • .Net: Added Azure AI Persistent Agents (#81) 
    * Added PersistentAgentsChatClient

* Added integration tests

* Small fixes

* Added sample

* Added TODO for tools

* Small rename

* Removed user-secrets id

* Renamed project

* Fixed warning

* Fixed warning

* More fixes

* More fixes
    Dmytro Struk · 2025-06-19 14:01:26 +00:00
    47dcad6b49
  • Add tests for ChatClientAgent with OpenAI responses (#82) 
    * Add tests for ChatClientAgent with OpenAI responses

* Address PR comments

* Fix typo
    westey · 2025-06-19 09:12:24 +00:00
    d1d69af482
  • Add additional integration tests and add OpenAIAssistant integration tests project. (#79) 
    * Add additional integration tests and add OpenAIAssistant integration tests project.

* Address PR comments.

* Address PR comments.
    westey · 2025-06-17 11:43:29 +00:00
    e6bfc51367
  • .Net: Adding ChatOptions configuration to the Agent level (#75) 
    * Adding ChatOptions configuration to the Agent level

* fix warnings

* Address Copilot Feedback

* Add UT for new AgentExtensions

* Add UnitTests for ChatOptions merging behavior

* Fix warning

* Address PR Feedback

* Update dotnet/src/Microsoft.Agents/ChatCompletion/ChatClientAgent.cs

Co-authored-by: Dmytro Struk <13853051+dmytrostruk@users.noreply.github.com>

---------

Co-authored-by: Dmytro Struk <13853051+dmytrostruk@users.noreply.github.com>
    Roger Barreto · 2025-06-17 09:08:11 +00:00
    16cbc44611
  • Add test infrastructure for agent conformance tests (#77) 
    * Add test infrastructure for agent conformance tests

* Address PR comments.

* Switch TargetFrameworks to have inline condition
    westey · 2025-06-16 11:32:20 +01:00
    293cdb1846
  • Update ChatClientAgentThread to support both in-memory and service storage. (#70) 
    * Update ChatClientAgentThread to support both in-memory and service storage.

* Fix typos.

* Address PR comments

* Move code to reusable sections.

* Remove DefaultThreadStorageLocation

* Change thread type naming and make it internal

* Fix bug for streaming case.

* Add additional unit tests

* Add more unit tests to verify agent's thread update behavior.
    westey · 2025-06-12 13:28:08 +00:00
    d6dc360215
  • .Net: Add ChatClientAgent Samples - OpenAI Model Client (#72) 
    * Add Streaming API

* Removing InstructionsRole

* Updating thread notification strategy

* Fix net472 failing

* Small fixes

* Adding Samples for OpenAI

* WIP samples

* default runsettings for unit tests

* Adding first samples with OpenAIModelChatClientAgents

* Removing OpenAI dependency on the sample utility

* Release -> Debug update for GettingStarted project

* Fix GettingStarted.csproj failing to build in Release

* Update dotnet/src/Shared/Samples/BaseSample.cs

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

* Address PR feedback

* Fix Step 1 samples

* Simplify code

* Address PR feedback

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
    Roger Barreto · 2025-06-12 12:22:07 +00:00
    2c75f13337
  • .Net ChatClientAgent Streaming API Impl. (#69) 
    * Add Streaming API

* Removing InstructionsRole

* Updating thread notification strategy

* Fix net472 failing

* Address typo
    Roger Barreto · 2025-06-12 06:18:47 +00:00
    d761c92a52
  • .Net: ChatClientAgent (Non-Streaming initial impl) (#65) 
    * Add non-streaming impl

* Add missing UT

* AgentThread UT + ensuring behavior

* Fix warnings

* Increase code coverage

* Add UT

* Updated abstractions fixes

* Adding AgentInvokingChatClient for instruction handling logic

* Moving AsAgentInvokingClient to ChatClientExtensions

* Address PR Feedback

* Address PR feedback

* Address PR feedback

* Signature updates for chat run options
    Roger Barreto · 2025-06-11 10:21:30 +00:00
    89daf173c4
  • Remove create/delete from AgentThread to avoid needing a thread implementation for each service. (#64) 
    * Remove create/delete from thread to avoid needing a thread implementation for each service.

* Address pr feedback.
    westey · 2025-06-10 14:51:37 +00:00
    46a117d581
  • Adding nuget.config + Small Async fix (#62) 
    * Async fix

* Fix warnings
    Roger Barreto · 2025-06-09 11:33:27 +00:00
    2a1c8ea1a3
  • .Net: Added Agent abstractions from SK repository (#56) 
    * Fixed project build in Visual Studio

* Added Agent abstractions

* Remove features we are not porting over, addressing PR comments and making updates as per agreed design.

* Add create thread method.

* Add unit tests and update invoke response type to async

* Address PR comments and fix formatting.

* Switch to shared null checker to fix build failures.

* Add additional tests to increase code coverage

* Seal mockagent

* Fix line coverage failure

* Improve coverage check formatting

---------

Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>
    Dmytro Struk · 2025-06-09 11:35:41 +01:00
    af2295f130
  • Fixed project build in Visual Studio (#55)
    Dmytro Struk · 2025-06-03 08:51:13 +00:00
    43316ecb50
  • Add skeleton dotnet project structure (#49) 
    * Add skeleton dotnet project structure

* Fix casing in import statement.

* Moving tests folder to be a sibling of src.

* Update tests to use directory.builds.props and only build necessary frameworks.

* Move more test props to directory.build.props

* Add AotCompatible flag and .net 8.0

* Rename Tests to UnitTests

* Add global.json file

* Update publish mapping for unit tests to debug, to reduce build times.
    westey · 2025-05-29 15:58:57 +00:00
    d0531bb93b