textproc/diction 1.11p0 OpenBSD

Diction and style are two old standard Unix commands. Diction identifies wordy and commonly misused phrases. Style analyses surface characteristics of a document, including sentence length and other readability measures.

These programs cannot help you structure a document well, but they can help to avoid poor wording and compare the readability (not the understandability!) of your documents with others. Both commands support English and German documents.