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113 Commits

  • Net: Publish all packages as 0.0.1-preview.260417.2 (#5341) 
    Revises the Foundry pre-release approach to publish ALL normally packable src projects as preview packages stamped 0.0.1-preview.260417.2, including projects previously flagged IsReleased=true or with a non-default VersionSuffix (rc/alpha).

nuget-package.props:

- Collapse the four conditional PackageVersion expressions (IsReleaseCandidate, VersionSuffix, default preview, IsReleased stable) into a single unconditional 0.0.1-preview.260417.2. On this preview-only branch every package ships with the same pre-release stamp regardless of per-project flags.

- Restore the global IsPackable=true default (offsetting the repo-wide IsPackable=false in Directory.Build.props). Projects that opt out (Mem0, Declarative) already set IsPackable=false AFTER importing this file so they remain non-packable.

- Remove the IsReleased-gated EnablePackageValidation line. Package validation does not apply to a 0.0.1 preview.

csproj reverts (Abstractions, Agents.AI, Workflows, Workflows.Generators, Foundry):

- Revert the IsPackable=true opt-in block introduced in #5336 (now redundant since the props default is true again).

- Restore IsReleased=true to its pre-PR value. The setting is now a no-op because the props no longer branches on it.
    Roger Barreto · 2026-04-17 22:39:48 +01:00
    ecc34ff902
  • Net: Prepare Foundry Preview Release (#5336) 
    * Prepare Foundry preview release 1.2.0-preview.*

Bump VersionPrefix to 1.2.0 and update the preview stamp date. Invert packaging opt-in so only the Foundry preview set produces NuGet packages:

- Microsoft.Agents.AI.Abstractions

- Microsoft.Agents.AI

- Microsoft.Agents.AI.Workflows

- Microsoft.Agents.AI.Workflows.Generators

- Microsoft.Agents.AI.Foundry

Flip IsReleased=false on the preview set so they pick up the -preview.YYMMDD.N suffix. Gate GeneratePackageOnBuild on IsPackable=true. Remove the global IsPackable=true from nuget-package.props so the repo-level default (false) applies to everything else.

* Lower preview VersionPrefix to 0.0.1

Retroactive preview publish: bump VersionPrefix and GitTag from 1.2.0 to 0.0.1 so the 5 Foundry preview packages emit as 0.0.1-preview.260417.1.
    Roger Barreto · 2026-04-17 18:39:17 +01:00
    31acaccc50
  • .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
  • Samples fixes (#5169)
    westey · 2026-04-09 08:46:20 +00:00
    79afda1a6c
  • .NET: Fix input signal issue during checkpoint restoration (#5085) 
    * Improve workflow unit tests

* Update test name prefix for clarity.

* Update tests to surface any errors.

* fix check-point restore-time race in off-thread workflow event stream
    Peter Ibekwe · 2026-04-03 22:58:25 +00:00
    d30103fee6
  • .NET: Add Message Delivery Callback Overloads to Executor (#5081) 
    * feat: Implement Executor Message Delivery Event callbacks

* fix: ResumeAsync does not run pending steps

* fix: address review comments
    Jacob Alber · 2026-04-03 21:19:15 +00:00
    55ae57c0ed
  • release: Mark Handoff Orchestrations Experimental (#5065)
    Jacob Alber · 2026-04-02 15:48:19 +00:00
    c798cb7a2e
  • .NET: Update release versions (#5059) 
    * Update release versions

* Fix versioning issue

* Change ga wording to released

* Update suppression file

* Remove unecessary workflows suppression file

* Remove another unnecessary suppression file.

* Fix suppressions file
    westey · 2026-04-02 14:54:28 +00:00
    524c0216e4
  • .NET: Remove timeout from InputWait in OffThread execution (#4996) 
    * fix: Remove Timeout from InputWait in StreamingRunEventStream

* fix: Race condition when the workflow executes to halt before TakeEventStream

* test: Make the OffThread Delay test more nimble

* fix: Remove slight window where runStatus could be stale
    Jacob Alber · 2026-04-02 14:35:25 +00:00
    281661e409
  • .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: Add API breaking change validation for RC packages (#4977) 
    * Add API breaking change validation for RC packages

Enable .NET Package Validation for release candidate packages to detect
API breaking changes in CI. This follows the same pattern used by
Semantic Kernel, centralized through nuget-package.props.

Changes:
- Enable EnablePackageValidation for IsReleaseCandidate packages
- Update PackageValidationBaselineVersion to 1.0.0-rc4 (latest published)
- Generate CompatibilitySuppressions.xml for existing known API changes
  in 5 packages (AI, AzureAI, OpenAI, Workflows, Workflows.Declarative.AzureAI)
- Opt out Workflows.Declarative.Mcp (not yet published to NuGet)
- Add breaking changes guidance to CONTRIBUTING.md

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR review feedback

- Remove unnecessary empty PackageValidationBaselineVersion override
  in Workflows.Declarative.Mcp.csproj (EnablePackageValidation=false
  is sufficient)
- Tighten CONTRIBUTING.md wording to clarify opt-out possibility

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Enable package validation for GA packages (no VersionSuffix)

Expand the EnablePackageValidation condition to also cover future GA
packages that have no VersionSuffix, not just RC packages.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix EnablePackageValidation GA condition to check PackageVersion

The previous condition VersionSuffix=='' matched all packages (preview
included) since VersionSuffix defaults to empty. Now uses two separate
conditions: one for RC, one for true GA (PackageVersion == VersionPrefix).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add IsGeneralAvailable flag for package validation

Replace fragile PackageVersion condition with explicit IsGeneralAvailable
property, following the same per-project self-declaration pattern as
IsReleaseCandidate.

- Directory.Build.props: Add IsGeneralAvailable=false default
- nuget-package.props: EnablePackageValidation on RC OR GA
- CONTRIBUTING.md: Update docs to mention both flags

When packages go GA, they set IsGeneralAvailable=true in their .csproj.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Rename IsGeneralAvailable to IsGenerallyAvailable

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
    Roger Barreto · 2026-03-30 17:36:43 +00:00
    18f7ba8632
  • .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
  • fix: Re-enable the "retrieve object" check in StateManager (#1881)
    Jacob Alber · 2026-03-25 22:53:44 +00:00
    0bdcaa5c07
  • .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: [BREAKING] Update type names and source generator to reduce conflicts (#4903) 
    * refactor: [BREAKING] Config => ExecutorConfig

Make the Config name less likely to collide with other classes by renaming to ExecutorConfig. Makes Configured and related classes internal as they do not need to be part of the public surface.

* fix: Make RouteBuilder explicit in SourceGen to avoid conflicts
    Jacob Alber · 2026-03-25 20:35:17 +00:00
    0756c45702
  • .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
  • fix: FS Checkpoint storage special character support (#4730) 
    The `sessionId`, an optional parameter when starting a new session when
running a workflow is an arbitrary string. This allows consumers to
support whatever ids are needed by other systems, but can result in
errors when an OS special or forbidden character is included.

The fix is to escape the paths, in a 1:1 manner. We rely on
EncodeDataString to do this.

* Also modifies the index file to make it easier to determine what the
  name of the file on disk is for a given `sessionId`.
    Jacob Alber · 2026-03-25 15:21:30 +00:00
    a9db40886e
  • .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: Fix race condition issue in FanInEdge while processing messages. (#4662) 
    * Fix race condition issue in FanInEdge while processing messages.

* refactored to limit the code segment under lock.

* Remove extra materialization of the result.

* Added comment to clarify future changes if process message is made async.
    Peter Ibekwe · 2026-03-18 00:36:10 +00:00
    c74b1b08eb
  • .NET: Add durable workflow support (#4436) 
    * .NET: [Feature Branch] Add basic durable workflow support (#3648)

* Add basic durable workflow support.

* PR feedback fixes

* Add conditional edge sample.

* PR feedback fixes.

* Minor cleanup.

* Minor cleanup

* Minor formatting improvements.

* Improve comments/documentation on the execution flow.

* .NET: [Feature Branch] Add Azure Functions hosting support for durable workflows (#3935)

* Adding azure functions workflow support.

* - PR feedback fixes.
- Add example to demonstrate complex Object as payload.

* rename instanceId to runId.

* Use custom ITaskOrchestrator to run orchestrator function.

* .NET: [Feature Branch] Adding support for events & shared state in durable workflows (#4020)

* Adding support for events & shared state in durable workflows.

* PR feedback fixes

* PR feedback fixes.

* Add YieldOutputAsync calls to 05_WorkflowEvents sample executors

The integration test asserts that WorkflowOutputEvent is found in the
stream, but the sample executors only used AddEventAsync for custom
events and never called YieldOutputAsync. Since WorkflowOutputEvent is
only emitted via explicit YieldOutputAsync calls, the assertion would
fail. Added YieldOutputAsync to each executor to match the test
expectation and demonstrate the API in the sample.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix deserialization to use shared serializer options.

* PR feedback updates.

* Sample cleanup

* PR feedback fixes

* Addressing PR review feedback for DurableStreamingWorkflowRun

   - Use -1 instead of 0 for taskId in TaskFailedException when task ID is not relevant.
   - Add [NotNullWhen(true)] to TryParseWorkflowResult out parameter following .NET TryXXX conventions.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* .NET: [Feature Branch]  Add nested sub-workflow support for durable workflows (#4190)

* .NET: [Feature Branch] Add nested sub-workflow support for durable workflows

* fix readme path

* Switch Orchestration output from string to DurableWorkflowResult.

* PR feedback fixes

* Minor cleanup based on PR feedback.

* .NET: [Feature Branch] Add Human In the Loop support for durable workflows (#4358)

* Add Azure Functions HITL workflow sample

Add 06_WorkflowHITL Azure Functions sample demonstrating Human-in-the-Loop
workflow support with HTTP endpoints for status checking and approval responses.

The sample includes:
- ExpenseReimbursement workflow with RequestPort for manager approval
- Custom HTTP endpoint to check workflow status and pending approvals
- Custom HTTP endpoint to send approval responses via RaiseEventAsync
- demo.http file with step-by-step interaction examples

* PR feedback fixes

* Minor comment cleanup

* Minor comment clReverted the `!context.IsReplaying` guards on `PendingEvents.Add`/`RemoveAll` and `SetCustomStatus` in `ExecuteRequestPortAsync`. The guards broke fan-out scenarios where parallel RequestPorts      need to be discoverable after replay. `SetCustomStatus` is idempotent metadata that doesn't affect replay determinism.eanup

* fix  for PR feedback

* PR feedback updates

* Improvements to samples

* Improvements to README

* Update samples to use parallel request ports.

* Unit tests

* Introduce local variables to improve readability of Workflows.Workflows access patter

* Use GitHub-style callouts and add PowerShell command variants in HITL sample README

* Add changelog entries for durable workflow support (#4436)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Bump Microsoft.DurableTask.Worker to 1.19.1 to fix version downgrade

Microsoft.Azure.Functions.Worker.Extensions.DurableTask 1.13.1 requires
Microsoft.DurableTask.Worker >= 1.19.1 via its transitive dependency on
Microsoft.DurableTask.Worker.Grpc 1.19.1.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix broken markdown links in durable workflow sample READMEs

- Create Workflow/README.md with environment setup docs
- Fix ../README.md -> ../../README.md in ConsoleApps 01, 02, 03, 08
- Fix SubWorkflows relative path (3 levels -> 4 levels up)
- Fix dead Durable Task Scheduler URL

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix build errors from main merge: Throw conflict, ExecuteAsync rename, GetNewSessionAsync rename

- Remove InjectSharedThrow from DurableTask csproj (uses Workflows' internal Throw via InternalsVisibleTo)
- Update ExecuteAsync -> ExecuteCoreAsync with WorkflowTelemetryContext.Disabled
- Update GetNewSessionAsync -> CreateSessionAsync

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Move durable workflow samples to 04-hosting/DurableWorkflows

Aligns with main branch sample reorganization where durable samples
live under 04-hosting/ (alongside DurableAgents/).

- Move samples/Durable/Workflow/ -> samples/04-hosting/DurableWorkflows/
- Add Directory.Build.props matching DurableAgents pattern
- Update slnx project paths
- Update integration test sample paths
- Update README cd paths and cross-references

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix build errors: remove duplicate base class members, update renamed APIs

- Remove duplicate OutputLog, WriteInputAsync, CreateTestTimeoutCts, etc. from
  ConsoleAppSamplesValidation (already in SamplesValidationBase)
- Update AddFanInEdge -> AddFanInBarrierEdge in workflow samples
- Update GetNewSessionAsync -> CreateSessionAsync in workflow samples
- Update SourceId -> ExecutorId (obsolete) in workflow samples

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix dotnet format issues: add UTF-8 BOM and remove unused using

- Add UTF-8 BOM to 20 .cs files across DurableTask, AzureFunctions,
  unit tests, and workflow samples
- Remove unnecessary using directive in 07_SubWorkflows/Executors.cs

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix typo PaymentProcesser -> PaymentProcessor and garbled arrows in README

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix GetExecutorName to handle agent names with underscores

Split on last underscore instead of first, and validate that the
suffix is a 32-char hex string (sanitized GUID) before stripping it.
This prevents truncation of agent names like 'my_agent' when the
executor ID is 'my_agent_<guid>'.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Align DurableTask.Client.AzureManaged to 1.19.1

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Bump DurableTask and Azure Functions extension package versions

- DurableTask.* packages: 1.19.1 -> 1.22.0
- Functions.Worker.Extensions.DurableTask: 1.13.1 -> 1.16.0
- Functions.Worker.Extensions.DurableTask.AzureManaged: 1.0.1 -> 1.5.0 (telemetry bug fix)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Bump DurableTask SDK packages to 1.22.0

- DurableTask.Client: 1.19.1 -> 1.22.0
- DurableTask.Client.AzureManaged: 1.19.1 -> 1.22.0
- DurableTask.Worker: 1.19.1 -> 1.22.0
- DurableTask.Worker.AzureManaged: 1.19.1 -> 1.22.0
- Azure Functions extensions kept at original versions (1.13.1/1.0.1) due to
  host-side DurableTask.Core 3.7.0 incompatibility with newer extensions

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Update Microsoft.Azure.Functions.Worker.Extensions.DurableTask to "1.16.0"

* Add the local.settings.json files to the sample which were previously ignored. This aligns with our other samples.

* Increase timeout for tests as CI has them failing transiently.

* increaset timeout value for azure functions integration tests.

* Add YieldsOutput(string) to workflow shared state sample executors

ValidateOrder and EnrichOrder call YieldOutputAsync with string messages,
but only their TOutput (OrderDetails) was in the allowed yield types.
This caused TargetInvocationException in the WorkflowSharedState sample
validation integration test.

* Downgrade the durable packages to 1.18.0

* Downgrading Worker.Extensions.DurableTask to 1.12.1

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
    Shyju Krishnankutty · 2026-03-16 23:00:50 +00:00
    cbcdb2d29e
  • .NET: Fix to emit WorkflowStartedEvent during workflow execution (#4514) 
    * Fix bug to emit WorkflowStartedEvent during workflow execution

* Updated based on PR comments
    Peter Ibekwe · 2026-03-12 15:45:17 +00:00
    aa2ff672fb
  • .NET: Add FinishReason to AgentResponses (#4617) 
    * Add FinishReason to AgentResponses

* Address PR comments
    westey · 2026-03-11 14:22:56 +00:00
    2f8fd5f82f
  • .NET: Added support for polymorphic type as workflow output (#4485) 
    * Added support for polymorphic type as workflow output

* Update Linq expression to avoid unnecessary allocations.

* Added caching as per PR comment
    Peter Ibekwe · 2026-03-10 19:45:01 +00:00
    a3bfad4791
  • .NET: [BREAKING] Change *Provider StateKey to list of StateKeys (#4395) 
    * Change *Provider StateKey to list of StateKeys

* Add more statekey validation tests

* Address PR comments
    westey · 2026-03-03 17:25:22 +00:00
    d5da6e05d8
  • [BREAKING] Add response filter for store input in *Providers (#4327) 
    * Add response filter for store input for *Providers

* Apply suggestions from code review

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

* Address feedback

* Apply suggestions from code review

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

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: SergeyMenshykh <68852919+SergeyMenshykh@users.noreply.github.com>
    westey · 2026-03-03 11:02:02 +00:00
    945933c351
  • Add Name and Description support for GroupChat workflow builder (#4334)
    Peter Ibekwe · 2026-03-02 19:29:32 +00:00
    d932947ba5
  • .NET: Fixing issue with invalid node Ids when visualizing dotnet workflows. (#4269) 
    * Fix Mermaid rendering errors in WorkflowVisualizer.ToMermaidString

Fix two bugs in the Mermaid diagram output:

1. Use safe node aliases (node_0, node_1, ...) instead of raw executor IDs
   as Mermaid node identifiers. Raw IDs containing spaces, dots, or
   non-ASCII characters (e.g. Japanese) caused Mermaid parse errors.

2. Fix conditional edge arrow syntax from '.--> ' (invalid) to '.-> '
   (valid Mermaid dotted arrow syntax).

Fixes #1406

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Use recognizable sanitized IDs for Mermaid node identifiers\n\nReplace generic node_0/node_1 aliases with IDs derived from the original\nexecutor names. ASCII letters, digits, and underscores are preserved;\nother characters become underscores (collapsed, trimmed). Leading digits\nget an n_ prefix. Collisions are resolved with a numeric suffix.\n\nThis keeps node IDs readable in the Mermaid source while the display\nlabels continue to show the full original names."

* Remove issue number references from test names and comments"

* Address PR review feedback from Copilot\n\n- Add Throw.IfNull(id) guard to SanitizeMermaidNodeId\n- Add safety limit (10,000) to collision resolution loop\n- Restore missing edge assertions (middle1/middle2 --> end)\n- Fix comment to show actual sanitized ID (n_1_User_input)\n- Use stricter regex in Unicode test (must start with letter/underscore)"

* Address second round of PR review feedback\n\n- Escape node display labels via EscapeMermaidLabel to handle quotes,\n  brackets, and newlines in executor IDs\n- Fix XML doc on SanitizeMermaidNodeId to accurately describe that\n  existing consecutive underscores in input are preserved\n- Restore specific edge assertion (mid --> end) in conditional edge test\n- Restore fan-in routing assertions (s1/s2 through intermediate node,\n  no direct edges to t) in fan-in test"

---------

Co-authored-by: alliscode <bentho@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
    Ben Thomas · 2026-03-02 16:26:14 +00:00
    db48f8ce09
  • .NET: Fixing issue where OpenTelemetry span is never exported in .NET in-process workflow execution (#4196) 
    * 1. Add reproduction test for issue #4155: workflow.run Activity never stopped in streaming OffThread path

The WorkflowRunActivity_IsStopped_Streaming_OffThread test demonstrates that
the workflow.run OpenTelemetry Activity created in StreamingRunEventStream.RunLoopAsync
is started but never stopped when using the OffThread/Default streaming execution.
The background run loop keeps running after event consumption completes, so the
using Activity? declaration never disposes until explicit StopAsync() is called.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

2. Fix workflow.run Activity never stopped in streaming OffThread execution (#4155)

The workflow.run OpenTelemetry Activity in StreamingRunEventStream.RunLoopAsync
was scoped to the method lifetime via 'using'. Since the run loop only exits on
cancellation, the Activity was never stopped/exported until explicit disposal.

Fix: Remove 'using' and explicitly dispose the Activity when the workflow reaches
Idle status (all supersteps complete). A safety-net disposal in the finally block
handles cancellation and error paths.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add root-level workflow.session activity spanning run loop lifetime\n\nImplements two-level telemetry hierarchy per PR feedback from lokitoth:\n- workflow.session: spans the entire run loop / stream lifetime\n- workflow_invoke: per input-to-halt cycle, nested within the session\n\nThis ensures the session activity stays open across multiple turns,\nwhile individual run activities are created and disposed per cycle.\n\nAlso fixes linkedSource CancellationTokenSource disposal leak in\nStreamingRunEventStream (added using declaration)."

* Address Copilot review: fix Activity/CTS disposal, rename activity, add error tag\n\n1. LockstepRunEventStream: Remove 'using' from Activity in async iterator\n   and manually dispose in finally block (fixes #4155 pattern). Also dispose\n   linkedSource CTS in finally to prevent leak.\n2. Tags.cs: Add ErrorMessage (\"error.message\") tag for runtime errors,\n   distinct from BuildErrorMessage (\"build.error.message\").\n3. ActivityNames: Rename WorkflowRun from \"workflow_invoke\" to \"workflow.run\"\n   for cross-language consistency.\n4. WorkflowTelemetryContext: Fix XML doc to say \"outer/parent span\" instead\n   of \"root-level span\".\n5. ObservabilityTests: Assert WorkflowSession absence when DisableWorkflowRun\n   is true.\n6. WorkflowRunActivityStopTests: Fix streaming test race by disposing\n   StreamingRun before asserting activities are stopped.\n7. StreamingRunEventStream/LockstepRunEventStream: Use Tags.ErrorMessage\n   instead of Tags.BuildErrorMessage for runtime error events."

* Review fixes: revert workflow_invoke rename, use 'using' for linkedSource, move SessionStarted earlier\n\n- Revert ActivityNames.WorkflowRun back to \"workflow_invoke\" (OTEL semantic convention contract)\n- Use 'using' declaration for linkedSource CTS in LockstepRunEventStream (no timing sensitivity)\n- Move SessionStarted event before WaitForInputAsync in StreamingRunEventStream to match Lockstep behavior"

* Improve naming and comments in WorkflowRunActivityStopTests"

* Prevent session Activity.Current leak in lockstep mode, add nesting test

Save and restore Activity.Current in LockstepRunEventStream.Start() so the
session activity doesn't leak into caller code via AsyncLocal. Re-establish
Activity.Current = sessionActivity before creating the run activity in
TakeEventStreamAsync to preserve parent-child nesting.

Add test verifying app activities after RunAsync are not parented under the
session, and that the workflow_invoke activity nests under the session."

* Fix stale XML doc: WorkflowRun -> WorkflowInvoke in ObservabilityTests

---------

Co-authored-by: alliscode <bentho@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
    Ben Thomas · 2026-02-25 19:42:45 +00:00
    425f27f989
  • .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
  • .NET: Updated package versions for RC release (#4067) 
    * Updated package versions for RC release

* Resolved comment

* Resolved comments
    Dmytro Struk · 2026-02-19 17:18:01 +00:00
    6c32e869dd
  • [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
  • Fix CheckpointInfo.Parent always null in InProcessRunner (#3796) (#3812) 
    Track the last CheckpointInfo in InProcessRunner so that newly created
checkpoints reference their parent. When resuming from a checkpoint,
the resumed-from checkpoint becomes the parent of the next checkpoint.

Adds tests verifying:
- First checkpoint has null parent
- Subsequent checkpoints chain parents correctly
- Checkpoint after resume references the resumed-from checkpoint
    Jacob Alber · 2026-02-19 14:34:58 +00:00
    3507b2c532
  • .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: Improve session cast error message quality and consistency (#3973) 
    * Improve session cast error messge consistency

* Update changelog
    westey · 2026-02-17 15:51:30 +00:00
    08275f657b
  • Replace Typed Base Providers with Composition (#3988)
    westey · 2026-02-17 15:06:43 +00:00
    cd4e36ebf7
  • .NET: [BREAKING] Refactor providers to move common functionality to base (#3900) 
    * Move common functionality to provider base classes

Co-Authored-By: Copilot <175728472+Copilot@users.noreply.github.com>

* Address PR comments.

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
    westey · 2026-02-16 19:02:47 +00:00
    54a67d96cd
  • .NET: [BREAKING] Add session StateBag for state storage and support multiple providers on the Agent (#3806) 
    * .NET: [BREAKING] Add session statebag to use for state storage instead of inside providers (#3737)

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

* Convert all AIContextProviders to use the statebag

* Update InMemoryChatHistoryProvider to use StateBag

* Update Comsos and Workflow ChatHistoryProviders

* Update 3rd party chat history storage sample.

* Remove serialize method from providers

* Replacing provider factories with properties

* Remove Providers from Session and flatten state bag serialization

* Update samples to use getservice on agent

* Updated additional session types to serialize statebag

* Fix regression

* Address PR comments

* Address PR comments.

* Fix formatting

* Fix unit tests

* Remove InMemoryAgentSession since it is not required anymore.

* Address PR comments

* Convert sessions for A2AAgent, ChatClientAgent, CopilotStudioAgent and GithubCopilotAgent to use regular json serialization.

* Fix durable agent session jso usgae

* Add jso to InMemory and Workflow ChatHistoryProviders

* Update InMemoryChatHistoryProvider to use an options class for it's many optional settings.

* Apply suggestions from code review

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

* Address PR feedback

* Fix verification bug.

* Improve state bag thread safety

* Address PR comments and fix unit tests

* Address PR comments

* Fix unit test

---------

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

* Add a public StateKey property to providers (#3810)

* .NET: [BREAKING] Update providers in such a way that they can participate in a pipeline (#3846)

* Make providers pipeline capable

* Fix unit tests

* Move source stamping to providers from base class

* Also update samples.

* Address PR comments

* Rename AsAgentRequestMessageSourcedMessage to WithAgentRequestMessageSource

* .NET: [BREAKING] Add consistent message filtering to all providers. (#3851)

* Add consistent message filtering to all providers.

* Remove old chat history filtering classes

* Fix merge issues

* Fix unit test

* Enforce non-nullable property

* Fix merging bug and make troubleshooting source info easier by adding tostring implementation

* .NET: [BREAKING] Add support for multiple AIContextProviders on a ChatClientAgent (#3863)

* Add support for multiple AIContextProviders on a ChatClientAgent

* Address PR comments and fix tests

* Address PR comments.

* .NET: [BREAKING]Delay AIContext Materialization until the end of the pipeline is reached. (#3883)

* Delay AIContext Materialization until the end of the pipeline is reached.

* Address PR comments.

* Address PR comments

* Modify InvokedContext to be immutable (#3888)

* .NET: Address Feedback on StateBag feature branch PR (#3910)

* Address Feedback on statebag feature branch PR

* Update dotnet/src/Microsoft.Agents.AI.DurableTask/CHANGELOG.md

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

* Address PR comments

---------

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

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
    westey · 2026-02-13 14:08:07 +00:00
    3168eb4870
  • .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: 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
  • .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
  • [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
  • fix: FileSystemJsonCheckpointStore does not flush to disk on Checkpoint creation (#3439)
    Jacob Alber · 2026-01-27 19:53:40 +00:00
    5ef12a2341
  • .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