It would be great if the Text Finder plugin had an option to set the build description in case of a failure to give the user feedback why a build has failed.

Pattern groups could be used in the message string to present part of the matched string.

There is a "Description Setter Plugin" allows to set the build description but doesn't fail the build.
Using both plugins has the drawbacks that the order is important (Text Finder needs to run first to mark the build as failed) and that the logs need to be scanned twice.