Python: Default DevUI workflows to string input when start node is auto-wrapped agent#1143
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Pull Request Overview
This PR fixes a bug where DevUI workflows with auto-wrapped agent start nodes don't properly determine the expected input type, causing the UI to not display input configuration options. The fix defaults the input type to string when the start executor is detected as an agent.
- Adds helper functions to extract and select input types from executors
- Implements fallback to string input type when auto-wrapped agents are detected
- Adds comprehensive test coverage for the new input type detection logic
Reviewed Changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
python/packages/devui/agent_framework_devui/_server.py |
Adds input type extraction and selection helper functions, updates entity info endpoint to use new logic with string fallback |
python/packages/devui/agent_framework_devui/_executor.py |
Refactors workflow input parsing to use centralized input type detection methods |
python/packages/devui/tests/test_server.py |
Adds unit tests for the new input type extraction and selection functions |
python/packages/devui/tests/test_execution.py |
Adds unit tests for executor input type detection and workflow input parsing methods |
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Python Test Coverage Report •
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ekzhu
approved these changes
Oct 3, 2025
victordibia
approved these changes
Oct 3, 2025
victordibia
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Oct 3, 2025
Merged PR microsoft#1143 (workflow input type handling) with local DevUI improvements. - Resolved _server.py conflict by keeping _utils.generate_input_schema() approach - Enhanced _utils._parse_dict_input() with primitive type extraction from PR microsoft#1143 - Preserved all PR microsoft#1143 functionality: str/dict type prioritization for workflows - All tests passing (7 from PR microsoft#1143 + existing)
ReubenBond
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Oct 28, 2025
…to-wrapped agent (microsoft#1143) * DevUI workflows default to string input when start node is AgentExecutor * Remove unnecessary sample * Fix lint issue
arisng
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Feb 2, 2026
…to-wrapped agent (microsoft#1143) * DevUI workflows default to string input when start node is AgentExecutor * Remove unnecessary sample * Fix lint issue
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Motivation and Context
Right now, if running a workflow that has the start executor as an agent, DevUI doesn't properly determine the type of input expected, and will not show the ability to configure the input. To unblock, defaulting this to be a string.
Further work would be needed to support complex inputs like images, or other types.
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