vercel__workflow/.changeset/pre/catchable-step-arg-serialization-errors.md

@workflow/core

@workflow/core
patch

Step-argument serialization failures now fail the step with a catchable SerializationError (via a step_failed event, like a step-body failure) instead of failing the run from outside the workflow, and when uncaught they fail the run immediately as a USER_ERROR rather than retrying until max queue deliveries.