Listen for the limit, not for the polish
Families reviewing HNK work do not need to become engineers. Ask the student to explain with the screen closed. Listen for a source and a limit. If those are missing, the work is unfinished even if it sounds adult. You may refuse to send other children’s information to any model, including in a “helpful” paste.
Questions about whether a format fits: info@hnk.org. English is welcome.