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.NET: Fix FoundryAgents_Step15_ComputerUse sample for Azure Agents API - #3989
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Roger Barreto (rogerbarreto) merged 2 commits intoFeb 19, 2026
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The Azure Agents API rejects previous_response_id alongside computer_call_output items, unlike the vanilla OpenAI Responses API. This fix: - Send all prior response output items (reasoning, computer_call, etc.) as input items in follow-up calls so the API has full conversation context - Create a fresh session per call to avoid ConversationId/previous_response_id - Use currentCallId instead of initialCallId for computer_call_output - Clear ContinuationToken after polling to prevent stale tokens - Remove unused initialCallId tracking variable Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This pull request fixes the FoundryAgents_Step15_ComputerUse sample to work correctly with the Azure Agents API. The Azure Agents API has specific requirements for computer use that differ from the vanilla OpenAI Responses API—it rejects requests containing previous_response_id alongside computer_call_output items. The fix implements a pattern of creating fresh sessions for each interaction and manually providing full conversation context by re-sending prior response output items.
Changes:
- Move session creation to occur just before initial request (avoiding premature creation)
- Add continuation token clearing after polling completes to prevent stale tokens
- Remove unused
initialCallIdtracking variable that's no longer needed - Use
currentCallIdinstead ofinitialCallIdfor computer_call_output - Implement Azure-specific pattern: re-send all prior response output items as an assistant message alongside computer_call_output in a fresh session
Mark Wallace (markwallace-microsoft)
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westey (westey-m)
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Motivation and Context
The Azure Agents API rejects previous_response_id alongside computer_call_output items, unlike the vanilla OpenAI Responses API. This fix: