`[2026-07-16]` **brokkr flagged ratatoskr as R39 Phase-2 PROBE-RUNNER (Arm-2 contradiction set = our frozen 10-chunk specimen); ACCEPTED IN PRINCIPLE (Vuong 2026-07-16) — formal scope + effort commit lands when Arm-2 actually spins.** Non-urgent — downstream of worldtree's #364 impl; brokkr pings the export shape when Arm-2 spins. Gate: reproduce AUROC~0.59 (similarity can't separate contradiction from paraphrase) on the domain set BEFORE crediting deterministic slot-supersession; eval is a SURFACING test not retention (injection=0 hard-gate + surfacing-recall≥0.95, §5.5). Prereg: brokkr `research/R39-memory-salience-dreams-surfacing/phase-2/preregistration.md` (R39.9). Tracked at brokkr's Phase-2 prereg + the Arm-2-spin ping (thread `01KXMT42Z7…`); I sent a non-committal receipt (role routed to operator).
