Perhaps include the "mistake" hint with jbofihe, and a separate command to get the whole suggestion.
<donri> ?t so'i prenu lojbo
<makfa> (mistake: forgot cu?) [(so'i /many/ ^prenu /person-ish/ /[type-of]/ lojbo /Lojbanic thing(s)/^)]
<donri> ?t mihe la makfa
<makfa> not grammatical (invalid character?): la <LA> [ ] makfa <BRIVLA> [magic]
<donri> ?fix so'i prenu lojbo
<makfa> There is no bridi in this sentence, but there is a tanru. Did you maybe forget to use cu to seperate a sumti from the intended selbri?
<donri> ?fix mihe la makfa
<makfa> There is no h in the lojbanic alphabet! Use the character ' instead.
Perhaps include the "mistake" hint with jbofihe, and a separate command to get the whole suggestion.