Null Data in ExecutorCompletedEvent, but AgentResponseUpdateEvents have data?

[jbnidev]

I think there is likely something very simple that I am missing in workflow/executor settings, but I cannot find it. I have an adapted version of WorkflowAgentsInWorkflowsSample example. I am grabbing all of the events, and my output is shown below. Things to notice:

1. The translators are clearly getting invoked and passing data downstream. You can see the ExecutorInvokedEvent events with the output from the prior stages.
2. The ExecutorCompletedEvent events have no data. (The Data fields are null, but showing up here as empty strings.)

QUESTION: Why are the ExecutorCompletedEvent.Data fields empty? Is this expected for agents? Is there a setting that controls this?

I was anticipating that I would get ExecutorCompletedEvent events with the complete data for all of the AgentResponseUpdateEvent events. (I have seen cases where the data is streamed across multiple AgentResponseUpdateEvent events, so this would be very useful.) This would match the corresponding ExecutorInvokedEvent event, however, I have also noticed that with agents, we get two pairs of invoked/completed events.

• There is an ExecutorInvokedEvent event with the input.
• There is an ExecutorCompletedEvent with no data.
• There is another ExecutorInvokedEvent event with "Microsoft.Agents.AI.Workflows.TurnToken" as its data.
• There is another ExecutorCompletedEvent with no data.

SuperStepStartedEvent: "Microsoft.Agents.AI.Workflows.SuperStepStartInfo"
ExecutorInvokedEvent: id = French_Translator_c245099bba664782ac6710b7dc9591ea: "17"
ExecutorCompletedEvent: id = French_Translator_c245099bba664782ac6710b7dc9591ea: ""
ExecutorInvokedEvent: id = French_Translator_c245099bba664782ac6710b7dc9591ea: "Microsoft.Agents.AI.Workflows.TurnToken"
AgentResponseUpdateEvent: id = French_Translator_c245099bba664782ac6710b7dc9591ea: ""
AgentResponseUpdateEvent: id = French_Translator_c245099bba664782ac6710b7dc9591ea: ""
AgentResponseUpdateEvent: id = French_Translator_c245099bba664782ac6710b7dc9591ea: "dix-huit"
AgentResponseUpdateEvent: id = French_Translator_c245099bba664782ac6710b7dc9591ea: ""
ExecutorCompletedEvent: id = French_Translator_c245099bba664782ac6710b7dc9591ea: ""
SuperStepCompletedEvent: "Microsoft.Agents.AI.Workflows.SuperStepCompletionInfo"
SuperStepStartedEvent: "Microsoft.Agents.AI.Workflows.SuperStepStartInfo"
ExecutorInvokedEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: "17 | "
ExecutorCompletedEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: ""
ExecutorInvokedEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: "dix-huit | "
ExecutorCompletedEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: ""
ExecutorInvokedEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: "Microsoft.Agents.AI.Workflows.TurnToken"
AgentResponseUpdateEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: ""
AgentResponseUpdateEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: ""
AgentResponseUpdateEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: "Trente-six"
AgentResponseUpdateEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: ""
ExecutorCompletedEvent: id = Spanish_Translator_8a7b9c65255a4c24ba664d9713758e66: ""
SuperStepCompletedEvent: "Microsoft.Agents.AI.Workflows.SuperStepCompletionInfo"
SuperStepStartedEvent: "Microsoft.Agents.AI.Workflows.SuperStepStartInfo"
ExecutorInvokedEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: "17 | dix-huit | "
ExecutorCompletedEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: ""
ExecutorInvokedEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: "Trente-six | "
ExecutorCompletedEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: ""
ExecutorInvokedEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: "Microsoft.Agents.AI.Workflows.TurnToken"
AgentResponseUpdateEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: ""
AgentResponseUpdateEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: ""
AgentResponseUpdateEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: "Seventy-two"
AgentResponseUpdateEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: ""
ExecutorCompletedEvent: id = English_Translator_c7081a63d80b4ebd97f442d1558e7549: ""
SuperStepCompletedEvent: "Microsoft.Agents.AI.Workflows.SuperStepCompletionInfo"

[Evan Mattson (moonbox3)]

Turned this into an issue to better track it. Please follow along here: #4639.