The Decoder measured the black gap on three transitions: menu->title 0 units, title->menu 4, EXTRAS->menu 6. Not a constant, and 9 was outside the range entirely -- wrong for all three by up to a sixth of a second of black the game does not show. Did not take the best-fitting value. A uniform 4 minimises total error (6 against 0's 10); that is fitting three samples. 0 has a reason that is not a fit -- it adds no black the game does not have, the tie-breaker input_during_transition already uses, and it is measured-correct for one real transition. The error is now a missing gap of at most 6 units on two transitions rather than an invented one of up to 9 on all three. Boot artifact unchanged at 0.0009% differing. Their EXTRAS run vindicates the earlier refusal: B from EXTRAS goes black for two completely empty frames, so the two-line change I declined would have been wrong for two of three transitions. Also: the declared final ramp is confirmed from my side (title 8, main_menu 10, extras 10 -- their exact multiset), needing no constant. And exit_ramp_units defaults to 24.0, the number HANDOFF told me to author and I refused, on a branch that cannot execute: 866 keyframes across 16 screens, 0 untimed. And origin/main is the stale era -- verified 0 145 left-right, tip 2026-08-29, still carrying the pre-fix association. The per-iteration merge has been a no-op for days, its 'Already up to date' reading as 'I am current' while meaning 'main has nothing'. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N7FiFFFwbvG2uxdcEh8HyF
Authored decisions
Everything here is a decision we made, not something the disc said. It is
hand-written, committed, and survives a re-export — unlike export/, which is
regenerated wholesale and must never be hand-edited.
Every entry carries a why. When the RE agent decodes the real answer, delete
the entry and let the exporter emit it; that deletion is the measure of
progress.
See docs/FORMAT.md for the schemas and docs/BLOCKED.md for which HANDOFF
question each placeholder is standing in for.