docs: design review and bench reliability analysis

design-review.html is the gameplay and UI read on the shipped campaign, with
boards rendered from the repo's own geometry rather than redrawn.

bench-reliability.html asks which of the bench's numbers are worth acting on,
and answers it by running the same 18 levels twice under identical conditions.
The mechanical rotation counters reproduce (r = 0.82-0.92) and three different
models agree on them level for level, so they measure the level rather than
the player — a 12-second rule-bot sweep gets the same answer as hours of
model time. Difficulty and stuck ratings also hold up (r = 0.93 / 0.85), but
the ratings for rotation, clarity and fun do not (0.32 / 0.19 / 0.56): asking
a model whether rotation matters is noise, while counting blind rotations is
not.

Every figure is computed from bench/runs by build-bench-report.mjs; nothing in
the page is hand-written, so it can be regenerated as runs accumulate.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
cabinw
2026-09-14 14:00:33 +08:00
co-authored by Claude Opus 5
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