Python: provide AzureAIAgent thread msg id during streaming

[moonbox3]

Motivation and Context

As part of invoking an AzureAIAgent via streaming, we weren't providing the thread_id via the AgentStreamEvent.THREAD_MESSAGE_CREATED event.

Description

Supply the caller with the thread_msg_id by sticking it into the returned SCMC's metadata dictionary.

• Closes Python: How can I grab the message id of AzureAIAgent assistant responses? #12959

Sample output looks like:

Sample Output:

# User: 'Hello'
# AuthorRole.ASSISTANT: (thread message id: msg_HZ2h4Wzbj7GEcnVCjnyEuYWT) Hello! How can I assist you with 
    the menu today?
# User: 'What is the special soup?'
# AuthorRole.ASSISTANT: (thread message id: msg_TSjkJK6hHJojIkPvF6uUofHD) The special soup today is 
    Clam Chowder. Would you like to know more about it or anything else from the menu?
# User: 'How much does that cost?'
# AuthorRole.ASSISTANT: (thread message id: msg_liwTpBFrB9JpCM1oM9EXKiwq) The Clam Chowder costs $9.99. 
    Is there anything else you'd like to know?
# User: 'Thank you'
# AuthorRole.ASSISTANT: (thread message id: msg_K6lpR3gYIHethXq17T6gJcxi) You're welcome! 
    If you have any more questions or need assistance, feel free to ask. Enjoy your meal!

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the SK Contribution Guidelines and the pre-submission formatting script raises no violations
• All unit tests pass, and I have added new tests where possible
• I didn't break anyone 😄

[Copilot]

Pull Request Overview

This PR adds thread message ID support to the AzureAIAgent streaming functionality. Previously, when invoking an AzureAIAgent via streaming, the thread_id was not provided in the AgentStreamEvent.THREAD_MESSAGE_CREATED event.

• Captures thread message ID from THREAD_MESSAGE_CREATED events during streaming
• Passes the thread message ID to the streaming message content generator
• Includes the thread message ID in the returned StreamingChatMessageContent metadata

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
python/semantic_kernel/agents/azure_ai/agent_thread_actions.py	Captures thread message ID from stream events and passes it to content generation
python/semantic_kernel/agents/azure_ai/agent_content_generation.py	Updates streaming message generation to include thread message ID in metadata
python/samples/concepts/agents/azure_ai_agent/azure_ai_agent_streaming.py	Demonstrates usage of thread message ID in streaming callback

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[moonbox3]

Python Test Coverage Report •

File	Stmts	Miss	Cover	Missing
agents/azure_ai
agent_content_generation.py	322	134	58%	79–80, 82, 100, 102, 231, 234, 274, 308, 326, 329–331, 340–342, 350, 358, 360, 368, 375, 381–383, 385, 387–389, 398–400, 409, 449, 488–489, 491–494, 497–500, 502, 504–505, 507–508, 510, 520–521, 523, 536–537, 539, 541–547, 557–559, 568, 585–586, 588, 590–597, 606, 615, 629–630, 632, 634–636, 638–642, 652–654, 663–664, 666, 692–699, 705–708, 713, 718–719, 726, 818, 824, 843–845, 855, 875–878, 889, 914–915, 917, 919–924, 929, 931
agent_thread_actions.py	427	203	52%	164, 166, 203–209, 245–246, 249–253, 255–257, 261, 264–266, 275, 280–281, 343, 347, 352, 355, 358–359, 363, 366, 369–370, 374, 377, 380–381, 385–386, 390–391, 395–396, 496, 498, 538–539, 562, 564–566, 568–570, 572, 574–576, 578–579, 581–586, 588–596, 600–601, 604–607, 611, 614–615, 618–619, 622, 625, 628–629, 632–638, 640–641, 645, 648–649, 656–657, 662, 666–669, 671–672, 679, 681, 685, 688–693, 695–697, 702–703, 706–709, 712–714, 724–725, 732, 734, 738, 740–741, 745–754, 756–764, 815, 818, 852–853, 860–864, 924, 929–934, 962–965, 969, 974–975, 979, 996–998, 1002–1003, 1018–1019, 1057, 1098–1101, 1103–1104, 1108, 1112–1113, 1118
TOTAL	27065	4689	82%

Python Unit Test Overview

Tests	Skipped	Failures	Errors	Time
3715	22 💤	0 ❌	0 🔥	1m 37s ⏱️