- Test roundToDifficulty: rounds 1-2 easy, 3-4 medium, 5+ hard
- Test pickChallenge difficulty filtering works with round numbers
- Audit prompt difficulty tags across all 16 challenge types
- 8 types lack hard prompts, 3 lack medium prompts
- 82.7% of prompts are untagged (no difficulty attribute)
- Report written to loop/difficulty-distribution.md
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
