Hi.

About the crash processor that was introduced in v4.47.0:
https://github.com/redpanda-data/connect/releases/tag/v4.47.0

Based on the current implementation, the exit code is always 1:
https://github.com/redpanda-data/benthos/blob/4cd5b09eff3eb816003c69323bbc54942883a1a3/internal/impl/pure/processor_crash.go

It would be nice to be able to specify the exit code as a field of this processor, similar to how you can do it with Go's standard library using os.Exit(code).

Also, consider adding some examples of the crash processor to the error handling documentation here:
https://docs.redpanda.com/redpanda-connect/configuration/error_handling/