Read-only agent review, 2026-10-14

/root/architecture — pre-run:
No blocking issue in hooked kernel arguments/order, masks or area weighting.
Caught CSV signal-location ambiguity and exchange-unit ambiguity before freeze:
fixed any_crossed versus peak_crossed; renamed latest_body_impulse_x/y and
latest_body_angular_impulse. No production behavior changes.

/root/numerical — pre-run:
Avoid rho/u at partly valid halo children; transfer neq is defined at full
coarse incoming vector, actual replaced q. No double-counting average rounding.
Require independent local SRT oracle before describing measured local drift as
rounding. Freeze pointwise baseline comparisons; startup propagation may be
acoustic, not established jet advection. Suggestions incorporated before GPU.

/root/architecture — post-run:
All frozen hashes match current sources; frozen.json digest matches gpu_run.
Freeze05:55:03 precedes launch05:55:16UTC, real exit0. Each trajectory has correct
ordered24ledger/72collision/48boundary rows; result/summary/final ledger agree.
Independently reconstructed all4metrics' per-time any_crossed/peak_crossed,
first-arrival and peaks/locations from saved signals.npz; all agree.
All text artifacts inspected within40000characters. No material gap.

/root/numerical — post-run:
Independently summed all3ledger/collision CSVs: all components of locally
measured collision drift exactly reproduce raw global residual. Each interval
fine_transfer+coarse_transfer-average_rounding is0. Largest FP64ideal moment
defect about2.94e-14. Maximum independent local oracle normalized error.569605
is below fixed1. Thus ledger closure is not the sole acceptance gate.
No blocking issue. Raw mass residuals2.29118e-4/2.89652e-4/3.33938e-4 remain;
identifying their FP32 source does not physically repair them or establish
strict conservation. First6/7/8 are integer sampling threshold witnesses,
not accurate propagation-speed or mature-jet/accuracy claims.

Agents performed read-only inspection/offline data parsing, no file edits,
no GPU launch and no old regression runs. Root is the sole editor/launcher.