.NET: feat: adds the executorId as an additional property when running the workflow as agent in dotnet by baywet · Pull Request #7934 · microsoft/agent-framework

Vincent Biret (baywet) · 2026-08-28T12:53:47Z

fixes #4445

…workflow as agent in dotnet

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Pull request overview

Adds workflow executor attribution to streamed .NET agent response updates.

Changes:

Adds a public executorId metadata key.
Attaches executor IDs to response updates.
Adds multi-executor streaming coverage.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
`WorkflowAgentAdditionalProperties.cs`	Defines the executor ID key.
`AgentResponseUpdateEvent.cs`	Adds attribution metadata to updates.
`WorkflowHostSmokeTests.cs`	Tests attribution and metadata preservation.

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…cross execution methods Signed-off-by: Vincent Biret <vibiret@microsoft.com>

…revious inputs for the executorId Signed-off-by: Vincent Biret <vibiret@microsoft.com>

Signed-off-by: Vincent Biret <vibiret@microsoft.com>

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Signed-off-by: Vincent Biret <vibiret@microsoft.com>

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Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Vincent Biret (baywet) · 2026-08-28T14:45:51Z

        Throw.IfNull(message);

-        return new(message.Role, message.Contents)
+        return SetExecutorId(new(message.Role, message.Contents)


The behaviour pre-existed this change, Tao Chen (@TaoChenOSU) to confirm whether we should fix that or not

westey (westey-m) · 2026-08-31T10:26:46Z

                MessageId = Guid.NewGuid().ToString("N"),
                Role = ChatRole.Assistant,
                ResponseId = this.LastResponseId,
                RawRepresentation = evt


Maybe I'm wrong, but I would have thought that the raw representation would typically be some sort of WorkflowEvent, and if so, that users could get the executor id from that.

I don't think I have enough context to reply to this comment. Why should it be a WorkflowEvent as opposed to an Executor Event? What parameters are you taking into consideration for this design suggestion?

I don't really know enough about this area either to know all the different raw representation types that might be represented here, but I think it's a good thing to verify before making the change.
Peter Ibekwe (@peibekwe), might have a better sense.

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

westey (westey-m) · 2026-09-10T13:20:51Z

+/// <summary>
+/// Defines additional property keys used by workflow-hosted agents.
+/// </summary>
+public static class WorkflowAgentAdditionalProperties


FYI: If we are unsure about something new that is public we often mark it as experimental, to make sure we can still make changes to it before graduating the feature. We then remove experimental once we are happy with the overall change.
Not sure if that is applicable here, but just an FYI.

Thanks I think Tao Chen (@TaoChenOSU) and Peter Ibekwe (@peibekwe) will be able to inform the design here and whether or not we need to add those experimental aspects.

Vincent Biret (baywet) · 2026-09-11T16:30:45Z

worth exploring this instead of magic keys in a dictionary

update.RawRepresentation is ExecutorEvent exevt
exevt.ExecutorId

feat: adds the executorId as an additional property when running the …

2022e83

…workflow as agent in dotnet

Vincent Biret (baywet) requested review from chetantoshniwal and Peter Ibekwe (peibekwe) as code owners August 28, 2026 12:53

Vincent Biret (baywet) self-assigned this Aug 28, 2026

Vincent Biret (baywet) requested review from SergeyMenshykh and Roger Barreto (rogerbarreto) as code owners August 28, 2026 12:53

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Vincent Biret (baywet) requested a review from westey (westey-m) as a code owner August 28, 2026 12:53

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agent-framework-automation Bot added .NET Usage: [Issues, PRs], Target: .Net workflows Usage: [Issues, PRs], Target: Workflows labels Aug 28, 2026

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github-actions Bot changed the title ~~feat: adds the executorId as an additional property when running the workflow as agent in dotnet~~ .NET: feat: adds the executorId as an additional property when running the workflow as agent in dotnet Aug 28, 2026

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Comment thread dotnet/src/Microsoft.Agents.AI.Workflows/AgentResponseUpdateEvent.cs Outdated

chore: linting

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Vincent Biret (baywet) added 3 commits August 28, 2026 09:04

feat: adds the executor id to the response event to match behaviour a…

50606c7

…cross execution methods Signed-off-by: Vincent Biret <vibiret@microsoft.com>

tests: adds a regression test to avoid value being wrong because of p…

5b418c4

…revious inputs for the executorId Signed-off-by: Vincent Biret <vibiret@microsoft.com>

tests: adds unit tests to cover AgentResponseEvent executor id mapping

a96df63

Signed-off-by: Vincent Biret <vibiret@microsoft.com>

chore: revert changes on failure paths

edf6435

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Vincent Biret (baywet) added 2 commits August 28, 2026 10:21

chore: reverts executorId on parts code path since it's never used

70b38a4

Signed-off-by: Vincent Biret <vibiret@microsoft.com>

feat: adds executor id additional property on observability update

acffd27

Signed-off-by: Vincent Biret <vibiret@microsoft.com>

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Comment thread dotnet/src/Microsoft.Agents.AI.Workflows/WorkflowSession.cs

chore: linting

3421ab8

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chore: formatting

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Vincent Biret (baywet) added 2 commits August 31, 2026 08:31

Merge branch 'main' into feat/workflow-as-agent-executor-id-dotnet

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tests: migrates to xunit

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.NET: feat: adds the executorId as an additional property when running the workflow as agent in dotnet - #7934

.NET: feat: adds the executorId as an additional property when running the workflow as agent in dotnet#7934
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