Implementation Notes for Safe Reprocessing After Partial Failure

Reprocessing after partial failure should start with state validation so retries do not duplicate side effects that already escaped.

Partial failure is where reprocessing gets dangerous. The system looks unfinished, but some side effects may already be real.

Before reprocessing, verify

• Which writes committed.
• Which downstream consumers already acted on the result.
• Whether the workflow phase is still valid.

Use the quickstart, architecture guide, and examples to design safe reprocessing checks.