When a Task has both output_pydantic and guardrails configured, if the
agent produces invalid JSON that fails Pydantic validation during a
retry, the system would crash instead of continuing to the next retry
attempt.
This fix wraps the _export_output call in a try-except block to catch
ValidationError and ConverterError exceptions. When these exceptions
occur, the pydantic_output and json_output are set to None, allowing
the retry loop to continue and the guardrail to check the raw output.
Changes:
- Import ValidationError from pydantic and ConverterError from converter
- Wrap _export_output calls in try-except in _invoke_guardrail_function
- Apply same fix to async version _ainvoke_guardrail_function
- Add 3 regression tests covering the issue scenario
Co-Authored-By: João <joao@crewai.com>
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