The lesson-quiz skill had two issues:
1. Correct answers were always placed as the first option, making quizzes
trivially solvable
2. No feedback was given after each round — users had to wait until all
5 rounds were complete to see any results
Add a CRITICAL shuffle instruction requiring randomized option order for
each question, and update round flow to show immediate per-question
feedback after each round.
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>