How to recover from generation errors

[kaimibk]

BLUF: Is there a way to recover when a generative output is malformed?

I am currently experimenting with LangExtract using a custom Bedrock model provider with Claude 4.5 as the generative model (due to limitations of my environment, this is the only generative model/platform I can use). However, due to the very nature of generative models, sometimes (but often enough) we get malformed responses from the model. When such an error occurs, this causes the whole LangExtract pipeline to fail and lose all progress. For example Extraction text must be a string, integer, or float. Found: <class 'NoneType'>. In one case, I had extraction passes set to 3, and on the final pass the error arose and I lost all previous progress/extractions - this seems like such a waste!

In the case of errors:

1. Is there a way to trigger a retry on failed passes/batches?
2. Can we "skip" over failed passes/batches and keep the successful extractions? As to not waste time/money.

Mahalo! 🤙