39 Commits

• fix: Duplicate CallIds cause Handoff Message Filtering to fail

  Some providers, e.g. Gemini, do not use the CallId mechanism to disambiguate simultaneous function calls. This can result in message lists containing multiple turn to fail to filter properly.
  
  The fix is to take advantage of the expectation that Handoff Orchestration is a "single-speaker" flow, which only has a single active AIAgent per "turn" and an agent's turn is not finished until all outstanding function calls are finished.
  
  This allows us to expect that any ambiguous-CallId FunctionCallContent are either in separate turns or will have had a response before the next issued call with the same Id.

  Jacob Alber · 2026-04-20 08:09:36 -04:00
  f082fcbca7
• .NET: fix: Add session support for Handoff-hosted Agents (#5280)

  * fix: Add session support for Handoff-hosted Agents
  
  In order to better support using `Workflows` hosted as `AIAgents` inside of Handoff workflows, we need to make proper use of AgentSession. This causes potential issues around checkpointing and making sure that we properly compute only the new incoming messages for each agent invocation.
  
  * fix: AgentSession checkpointing using AIAgent's Serialize/Deserialize methods
  
  We cannot rely on implicit serialization through `HandoffHostState` because we are missing type information.
  
  * fix: Thread safety issue in `MultiPartyConversation.AllMessages`
  
  * fix: Enable unwrapping of FunctionResultContent when ExternalRequest was wrapped into FunctionCallContent

  Jacob Alber · 2026-04-17 20:15:27 +00:00
  5777ed26e6
• .NET: feat: Refactor Handoff Orchestration and add HITL support (#5174)

  * feat: Refactor Handoff Orchestration and add HITL support
  
  * Change HandoffAgentExecutor to use factory-based instantiation
  * Extract shared request collection logic in AIAgentUnservicedRequestsCollector
  * Refactor HandoffAgentExecutor to use the "ContinueTurn" pattern as in AIAgentHostExecutor
  
  * fix: Remove '$' from exception strings

  Jacob Alber · 2026-04-13 14:59:17 +00:00
  76fe7319e0
• release: Mark Handoff Orchestrations Experimental (#5065)
  Jacob Alber · 2026-04-02 15:48:19 +00:00
  c798cb7a2e
• .NET: Fix RequestInfoEvent lost when resuming workflow from checkpoint (#4955)

  * Fix RequestInfoEvent lost when resuming workflow from checkpoint
  
  * Fix streaming run double disposal in tests and lockstep republishing before Started event is emitted.
  
  * Fix bug to remove messages after sending to avoid losing messages on send failure.
  
  * Fix declarative test harness

  Peter Ibekwe · 2026-04-01 15:38:48 +00:00
  38de991481
• .NET: feat: Implement return-to-previous routing in handoff workflow (#4356)

  * feat: Implement return-to-previous routing in handoff workflow
  
  - Also obsoletes HandoffsWorkflowBuilder => HandoffWorkflowBuilder (no "s")
  
  * refactor: Remove instance-shared current agent tracking in handoffs
  
  Because the tracker was instance-shared between the start and end executors, it would be shared between all sessions, resulting in incorrect behaviour.
  
  The corect way to do this is to keep the data in a shared executor scope, which is per-session.
  
  * fix: Fix test logic for Handoff to correctly use checkpointing for multiturn

  Jacob Alber · 2026-03-26 20:17:57 +00:00
  5530bc536b
• .NET: fix: HandoffAgentExecutor does not output any response when non-streaming (#4745)

  * fix: HandoffAgentExecutor does not output any reponse when non-streaming
  
  * fix: Ensure Workflow outputs persisted in chat history when hosted AsAgent
  
  * fix: Remove duplicate history entry creation and ad test
  
  * test: Add streaming tests for AsAgent to smoke tests
  
  * feat: Add output configurability to Handoffs

  Jacob Alber · 2026-03-25 22:22:13 +00:00
  35f44e854e
• .NET: Pass through external input request and handle response conversion for workflow as agent scenario (#4361)

  * Handle external input request and response conversion for workflow as agent scenario
  
  * Remove unnecessary test comment
  
  * Fix PR comments
  
  * Updated to fix edge cases, and add more tests.
  
  * Update pending requests to use typed properties instead of relying on StateBag. replying to PR feedback.
  
  * Fixed external response de-dup and updated possible brittle test.
  
  * Address PR comments on sending turn token for normal messages and handle contentId collision by source agent
  
  * Remove unnecessary serialization element and address pr comment on intercepted outgoing requests
  
  * Updated MEAI changes for UserInput request and response abstractions.

  Peter Ibekwe · 2026-03-25 19:23:44 +00:00
  23921c0f6e
• .NET: Update to OpenAI 2.9.1, Azure.AI.OpenAI 2.9.0-beta.1, Microsoft.Extensions.AI 10.4.0, and Azure.AI.Projects 2.0.0-beta.2 (#4613)

  * Initial plan
  
  * Update code for Microsoft.Extensions.AI.Abstractions 10.4.0 breaking changes
  
  - Rename FunctionApprovalRequestContent → ToolApprovalRequestContent
  - Rename FunctionApprovalResponseContent → ToolApprovalResponseContent
  - Rename UserInputRequestContent → ToolApprovalRequestContent
  - Rename UserInputResponseContent → ToolApprovalResponseContent
  - Update .FunctionCall property → .ToolCall with FunctionCallContent casts where needed
  - Update .Id property → .RequestId on the renamed types
  - Rename FunctionApprovalRequestEventGenerator → ToolApprovalRequestEventGenerator
  - Rename FunctionApprovalResponseEventGenerator → ToolApprovalResponseEventGenerator
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Update OpenAI 2.9.1, ME.AI 10.4.0, fix breaking API changes
  
  Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
  
  * Fix remaining ME.AI 10.4.0 breaking changes: MCP approval types, .Output→.Outputs
  
  Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
  
  * Use pattern matching with `when` for ToolApprovalRequestContent/FunctionCallContent
  
  Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
  
  * Update Azure.AI.OpenAI to 2.9.0-beta.1
  
  Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
  
  * Fix remaining GetResponsesClient(model) build failures for Azure.AI.OpenAI 2.9.0-beta.1
  
  Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
  
  * Address review feedback: remove redundant type checks in TestRequestAgent.cs and fix error message in AIAgentHostExecutor.cs
  
  Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
  
  * Update Azure.AI.Projects to 2.0.0-beta.2 with namespace migration
  
  - Azure.AI.Projects 2.0.0-beta.1 → 2.0.0-beta.2
  - Azure.AI.Projects.OpenAI → Azure.AI.Extensions.OpenAI (transitive)
  - Agent types moved to Azure.AI.Projects.Agents namespace
  - AgentRecord.Versions.Latest → AgentRecord.GetLatestVersion()
  - OpenAPIFunctionDefinition → OpenApiFunctionDefinition
  - BingCustomSearchToolParameters → BingCustomSearchToolOptions
  - MemorySearchPreviewTool.UpdateDelay → UpdateDelayInSecs
  - Azure.Identity 1.17.1 → 1.19.0
  - Microsoft.Identity.Client.Extensions.Msal 4.78.0 → 4.83.1
  
  Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>
  
  * Fix remaining type renames for Azure.AI.Projects 2.0.0-beta.2
  
  - BrowserAutomationToolParameters → BrowserAutomationToolOptions
  - MemoryUpdateOptions.UpdateDelay stays as UpdateDelay (not renamed)
  - WaitForMemoriesUpdateAsync parameter order: pollingInterval before options
  - AIProjectAgentsOperations → AgentsClient
  
  Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>
  
  * Fix format errors and OpenTelemetry test for ME.AI 10.4.0
  
  - Remove unused 'using Azure.AI.Extensions.OpenAI' and fix import ordering
    in Agent_With_AzureAIProject/Program.cs
  - Update OpenTelemetryAgentTests: gen_ai.tool.definitions is now always
    emitted regardless of EnableSensitiveData per ME.AI 10.4.0 change
    (dotnet/extensions#7346). Tool definitions are not considered sensitive.
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Fix GetRepoFolder() to work in git worktrees
  
  Use 'workflow-samples' directory as repo root marker instead of '.git',
  which fails in worktrees (.git is a file) and also matches too early
  when a '.github' folder exists in subdirectories.
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Fix formatting: remove unused usings and fix import ordering
  
  dotnet format applied across 59 impacted projects. Primarily removes
  unnecessary 'using Azure.AI.Projects' where Azure.AI.Projects.Agents
  provides all needed types, and fixes import ordering per editorconfig.
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Disable AzureAIAgentsPersistent integration tests (#4769)
  
  Azure.AI.Agents.Persistent 1.2.0-beta.9 references McpServerToolApprovalResponseContent
  which was removed in ME.AI 10.4.0 (renamed to ToolApprovalResponseContent), causing
  TypeLoadException at runtime. Mark all 6 test classes with IntegrationDisabled trait
  until Persistent ships a version targeting ME.AI 10.4.0+.
  
  Upstream fix: https://github.com/Azure/azure-sdk-for-net/pull/56929
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Add README with compatibility note for AzureAI.Persistent (#4769)
  
  Documents that Azure.AI.Agents.Persistent 1.2.0-beta.9 is only compatible
  with ME.AI ≤10.3.0 and OpenAI ≤2.8.0 due to type renames in ME.AI 10.4.0.
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Fix file encoding: restore UTF-8 BOM on Persistent test files
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Mark AzureAI.Persistent as IsPackable=false (#4769)
  
  Prevent shipping until Azure.AI.Agents.Persistent targets ME.AI 10.4.0+.
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Moving IsPackable after import
  
  ---------
  
  Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
  Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

  Copilot · 2026-03-20 14:29:29 +00:00
  88ea9d08c7
• .NET: [BREAKING] Workflows API Review Naming Changes (Part 1?) (#4090)

  * refactor: Normalize Run/RunStreaming with AIAgent
  
  * refactor: Clarify Session vs. Run -level concepts
  
  * Rename RunId to SessionId to better match Run/Session terminology in AIAgent
  * [BREAKING]: Will break existing checkpointed sessions in CosmosDb due to field rename
  
  * refactor: Rename and simplify interface around getting typed data out of ExternalRequest/Response
  
  * Also adds hints around using value types in PortableValue
  
  * refactor: Rename AddFanInEdge to AddFanInBarrierEdge
  
  This will prevent a breaking change later when we introduce a programmable FanIn edge, analogous to the FanOut edge's EdgeSelector.
  
  The goal, in the long run is to support a number of different FanIn scenarios, with naive FanIn (no barrier) by default, similar to FanOut.
  
  * refactor: AsAgent(this Workflow, ...) => AsAIAgent(...)
  
  * misc - part1: SwitchBuilder internal
  
  ---------
  
  Co-authored-by: Dmytro Struk <13853051+dmytrostruk@users.noreply.github.com>

  Jacob Alber · 2026-02-20 02:05:18 +00:00
  0086d38f58
• .NET: Remove FunctionCalls and Tool Messages from Handoff passed messages (#3811)

  * Fix handoff orchestration not passing user message to handoff target agent (#3161)
  
  Filter out internal handoff function call and tool result messages before
  passing conversation history to the target agent's LLM. These messages
  confused the model into ignoring the original user question.
  
  * Add handoff tool call filtering behavior and enhance workflow builder
  
  - Introduced HandoffToolCallFilteringBehavior enum to specify filtering behavior for tool call contents in handoff workflows.
  - Updated HandoffsWorkflowBuilder to support customizable handoff instructions and tool call filtering behavior.
  - Enhanced HandoffAgentExecutor to utilize new filtering options for improved message handling during agent handoffs.
  
  * Enhance handoff message filtering logic and add unit tests for filtering behaviors
  
  * Refactor HandoffMessagesFilter to remove unused handoff function names and enhance filtering logic for non-handoff function calls
  
  * Refactor HandoffMessagesFilter to streamline FilterCandidateState initialization and improve clarity
  
  * Refactor HandoffMessagesFilter to improve filtering logic and add integration tests for handoff workflows
  
  * fix: HandoffAgentExecutor tests

  Jacob Alber · 2026-02-19 19:55:12 +00:00
  2cb4137501
• [BREAKING] .NET: Decouple Checkpointing from Run/StreamAsync APIs (#4037)

  * [BREAKING] refactor: Decouple Checkpointing and Execution APIs
  
  With this change, Checkpointing becomes an property of an IWorkflowExecutionEnvironment. This lets environments that are tightly-coupled to their CheckpointManager avoid needing to present APIs that would not work (e.g. taking in an InMemory CheckpointManager for Durable Tasks, for example)
  
  * refactor: Normalize IsCheckpointingEnabled naming

  Jacob Alber · 2026-02-19 16:41:35 +00:00
  c73bd87503
• .NET: [BREAKING] Implement Polymorphic Routing (#3792)

  * feat: Implement Polymorphic Routing
  
  * feat: Add support for Send/Yield annotations with basic Executor
  
  * Adds annotations to Declarative workflow executors
  
  * fix: Address PR Comments
  
  * Implicit filter in collection loops
  * Remove debug / usused / superfluous code
  * Fix ProtocolBuilder implicit output registrations
  * Fix logic error in ExecuteRouteGeneratorTests.ClassWithManualConfigureProtocol_DoesNotGenerate
  
  * fix: Solidify type checks and send/yield type registrations
  
  * fix: Suppress generation of TurnTokens out of AggregateTurnMessagesExecutor
  
  * Fixes an issue where ConcurrentEndExecutor is not expecting TurnTokens.
  
  * fix: Add ProtocolBuilder support for chained-delegation
  
  * Updates Declarative pacakge to rely on chained-delegation Send/Yield registration
  * Renames DeclarativeActionExectuor's new ExecuteAsync to ExecuteActionAsync to avoid colliding with Executor.ExecutoeAsync
  
  * fix: Address PR Comments
  
  * Fixes type mapping in FanInEdgeRunner
  * Fixes and expalins send/yield type registration in FunctionExecutor
  
  * fixup: build-break
  
  * fix: Add missing SendsMesage declaration to InvokeAzureAgentExecutor

  Jacob Alber · 2026-02-19 14:09:03 +00:00
  6a3d22598f
• .NET: BREAKING: Unify AgentResponse[Update] events as WorkflowOutputEvents (#3441)

  * Rename WorkflowOutputEvent.SourceId to ExecutorId for Python consistency
  
  - Rename SourceId property to ExecutorId in WorkflowOutputEvent
  - Add [Obsolete] SourceId property for backward compatibility
  - Update all test usages to use ExecutorId
  
  Resolves part of #2938
  
  * Unify AgentResponse events with WorkflowOutputEvent (#2938)
  
  - Change AgentResponseEvent and AgentResponseUpdateEvent to inherit from
    WorkflowOutputEvent instead of ExecutorEvent
  - Update AIAgentHostExecutor and HandoffAgentExecutor to use YieldOutputAsync()
    instead of AddEventAsync() for agent outputs
  - Add special-casing in InProcessRunnerContext.YieldOutputAsync() to create
    specific event types for AgentResponse and AgentResponseUpdate, bypassing
    OutputFilter for backwards compatibility
  - Update TestRunContext and TestWorkflowContext with same special-casing
  - Add regression tests in AgentEventsTests
  
  * refactor: Seal AgentResponse events

  Jacob Alber · 2026-02-18 18:55:26 +00:00
  6a39d5a652
• .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: [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: [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
• 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] 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: [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] Delete display name property (#2758)

  * delete the AIAgent.DisplayName property
  
  * use agent name as a first value for activity display name
  
  * Update dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffAgentExecutor.cs
  
  Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
  
  ---------
  
  Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

  SergeyMenshykh · 2025-12-18 09:22:45 +00:00
  a71f768331
• .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
• .NET: fix: WorkflowAsAgent Sample (#1787)

  * fix: WorkflowAsAgent Sample
  
  * Also makes ChatForwardingExecutor public
  
  * feat: Expand ChatForwardingExecutor handled types
  
  Make ChatForwardingExecutor match the input types of ChatProtocolExecutor.
  
  * fix: Update for the new AgentRunResponseUpdate merge logic
  
  AIAgent always sends out List<ChatMessage> now.

  Jacob Alber · 2025-11-11 16:35:22 +00:00
  a39e6561fd
• .NET: AgentHostExecutor should use agent DisplayName as Executor ID (#1840)

  * AgentHostExecutor should use agent DisplayName as Executor ID
  
  * Address comments
  
  * Remove unintended changes
  
  * Remove unintended changes
  
  * Fix tests and address comments

  Tao Chen · 2025-11-05 22:16:53 +00:00
  3f835c8118
• .NET: [BREAKING] Unify ExecutorIsh and ExecutorRegistration, unify/simplify APIs (#1637)

  * refactor: Unify ExecutorIsh and ExecutorRegistration => ExecutorBinding
  
  * Switch to more modern Record type-tree for Sum Types
  * Unify APIs for getting ExecutorBinding
  * Fix an issue where workflows consisting entirely of cross-run shareable executors which are not instance-resettable do not properly clear state when running non-concurrently.
  
  * feat: Simplify function-to-executor pattern
  
  * refactor: Normalize API naming

  Jacob Alber · 2025-11-03 18:20:35 +00:00
  b25b0af49b
• fix: .NET: Concurrency Support for Orchestrations (#1689)

  Concurrent run support was recently added to workflows, but Orchestrations did not fully update to support it. A few executors were missing Cross-Run Shareable annotations, and the ConcurrentEnd executor needed to be factory-instantiated.
  
  This also ports the fix for #1613 from #1637, to avoid waiting on that PR.

  Jacob Alber · 2025-10-24 23:18:51 +00:00
  899d8ff775
• .NET: Fix handoff function naming (#1370)

  * Fix handoff function naming
  
  We don't need the agent's name or a guid in the handoff name... we can just use simple numbering. There's a possibility that someone built an agent with a built-in function tool named "handoff_to_x"; if that turns out to be an issue, we could add back some longer bit of randomness.
  
  * Update dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffAgentExecutor.cs
  
  ---------
  
  Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>

  Stephen Toub · 2025-10-21 15:23:53 +00:00
  22d76e5780
• .NET: AIAgentHostExecutor to use ToAgentRunResponse (#1439)

  * AIAgentHostExecutor to use ToAgentRunResponse
  
  * Only run agent in stream mode when emit event is true

  Tao Chen · 2025-10-20 17:50:12 +00:00
  7c1e3db846
• .NET: [BREAKING] Enable sharing of workflow instances across concurrently executing runs (#1464)

  * refactor: remove unused internals
  
  * feat: Execution Mode for sharing a workflow among concurrent runs
  
  * feat: Update WorkflowHostAgent to support concurrent execution
  
  * Also update AsAgent APIs to support injecting a CheckpointManager and an IWorkflowExecutionEnvironment
  
  * fix: Make Read logic consistent in DeclarativeWorkflowContext

  Jacob Alber · 2025-10-15 21:34:17 +00:00
  331c750515
• .NET: [BREAKING] Propagate CancellationToken into Workflow Executors and message handlers (#1280)

  * feat: Propagate CancellationToken to Executors
  
  * Also adds cancellation propagation to `Executor`-accessible APIs
  * Adds registrators for cancellable handlers to `RouteBuilder`
  * [BREAKING]: Adds `CancellationToken` to `IMessageHandler.HandleAsync`
  
  * test: Re-enable Concurrent Orchestration test
  
  * refactor: Delete unused IInputCoordinator
  
  * refactor: Remove superfluous argument qualifications

  Jacob Alber · 2025-10-08 00:28:44 +00:00
  5902bcb10a
• [BREAKING] .NET: Workflow Off-Thread Execution Mode (#1233)

  * Updates to async run loop.
  
  * fix: Workflow Onwership can be release by nonowner
  
  * fix: Incorrect handling of blockOnPending in StreamingRun
  
  Depending on whether we are running in streaming on non-streaming mode, we may be using the StreamingRun in different ways. Unfortunately, the only place we can really know what is the actual state of execution is in the RunEventStream implementations.
  
  This resulted in blocking where blocking was unneeded and occasionally not-blocking when blocking was needed.
  
  The fix is to move the logic of handling this blocking into RunEventStream implementations.
  
  * fix: Fix cleanup on error and end run
  
  This ensures we clean up the background resources correctly.
  
  * fix: Ensure we let the run loop proceed when shutting down
  
  * fix: Add timeout for Input Waiting
  
  * fix: Make the samples properly clean up `Run`s and `StreamingRun`s
  
  * fix: Simplify Declarative Workflow Run disposal pattern
  
  * Also fixes missing .Disposal() in Integration tests
  
  ---------
  
  Co-authored-by: Ben Thomas <ben.thomas@microsoft.com>

  Jacob Alber · 2025-10-07 01:07:38 +00:00
  7ebe00ec3d
• .NET: Add support for Subworkflows and many threading fixes (#1066)

  * feat: Add support for Workflow-as-Executor
  
  * Fixes routing of 'object' compile-typed variables to properly take in type information
  * Fixes a concurrency issue in StepTracer
  
  * fix: Make Subworkflow ExternalRequests work properly
  
  * fix: Threading and Concurrency fixes; prep for OffThread Mode
  
  * refactor: Remove dead code around OffStreamRunEventStream
  
  Currently not used, and will be replaced with a rewrite when brought back, so having it in the change is not valuable.
  
  * ci: Work around issues with dotnet-format not properly analyzing the source
  
  * fix: Fix the logic of AsyncCoordinator and AsyncBarrier
  
  * Prevent individual wait cancellations from canceling the entire barrier
  * Propagate information about whether the wait was completed or cancelled, and whether any waiters were present when released
  
  * fix: Remove superfluous acces to .Keys in InProcStepTracer
  
  * refactor: Clean up AsyncCoordinator's use of AsyncBarrier

  Jacob Alber · 2025-10-03 17:26:30 +00:00
  32e7ff00b5
• .NET: Fix some more static analysis diagnostics (#1025)

  * S1006
  
  * S2219
  
  * S3236
  
  * S3260
  
  * S1125
  
  * IDE0063
  
  * IDE0062
  
  * IDE0028

  Stephen Toub · 2025-09-30 22:50:22 +00:00
  2539282d30
• .NET: Clean up some CancellationToken usage (#996)

  * Clean up some CancellationToken usage
  
  * Unused usings

  Stephen Toub · 2025-09-30 13:44:53 +00:00
  4fd61924fc
• .NET: Clean up stale mentions of M.E.AI.Agents (#997)

  * Clean up stale mentions of M.E.AI.Agents
  
  * Unused usings

  Stephen Toub · 2025-09-30 08:36:06 +00:00
  77e5f527c4
• .NET: Rename workflows projects (#975)

  * Renaming Microsoft.Agent.Workflows to Microsoft.Agents.AI.Workflows
  
  * Removing local settings.
  
  * Removing remining old files from merge.

  Ben Thomas · 2025-09-29 18:30:45 +00:00
  647db9635a