quantmodel — Preregister the Black Box DF rescue-cap ablation

Objective

Preregister the Black Box DF rescue-cap ablation.

Notes: Preregistered exactly one diagnostic comparison: production 1.3% rescue cap versus zero-cap disabled rescue on cached 2021-04 through 2026-06 data. Fixed metrics and materiality classification, prohibited alternate caps and production changes, and documented the FEATURE_COMPLETION UI exception.

Approach

Reuses existing report research/findings/black-box-df-rescue-ablation-t358.md — tables/metrics preserved verbatim via source_report pointer. Body below summarizes grounded evidence from that report and adjacent artifacts.

Files / code / data changed

No commit SHA confidently associated with t358 in sampled log [reconstructed — uncertain].
Source report: research/findings/black-box-df-rescue-ablation-t358.md
Task-history entry: research/findings/task-history.json#t358

Results

Conclusions and metrics are in research/findings/black-box-df-rescue-ablation-t358.md; see detail page for preserved tables/metrics.

Conclusions

[reconstructed — uncertain] Outcome inferred from status done and task note.

Problems / follow-ups

See source report or PR discussion for follow-ups. No unsupported follow-ups fabricated.