Brief
Submit clusters on the unlabeled segmentation set plus a business readout memo (segment profiles + one targeting action each).
Dataset
Unlabeled segmentation set (no holdout labels; stability re-run is the check).
Starter guardrails (88)
- Slots: k-selection evidence, profiles table, readout memo.
- Profiles in business columns only (no scaled-axis jargon in the memo).
Deterministic checks
k-selection artifacts present (elbow + silhouette); seed-stability re-run reported; profiles recompute from assignments.
100-pt rubric
- k justification (elbow + silhouette): 20
- Profile quality (business columns): 25
- Action-implying names + owners: 20
- Stability evidence: 15
- Readout persuasiveness: 20