builtbykev
3e78217678
Before wiring any layer into the grade, measure whether its inputs are actually populated on real props. A layer wired onto sparse inputs does not degrade gracefully by default -- Number(null) === 0 turns a missing opportunity into 'zero opportunity', a fabricated input rather than an absent one. Reports population per feature, SPLIT BY stat_type, because a feature can be 100% present for batters and 0% for pitchers and a pooled number would hide exactly that. Also reports whether ab_per_game varies across a player's own props -- a per-player constant can only move all of a player's props together, which is a very different thing from a per-prop opportunity signal. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QJs13VsyiSKYQP6rj3NNmc