# Wonder & Recall Rail channel

V10 adapter over the real V9 Atlas and Mnemosyne seams. The first leaf runs the
V9 publish-if-absent selection job over proof-anchored Atlas/kernel content,
publishes that immutable communal edition into the morning brief, and projects
the same edition as a calm cold-cache spectator tile. Its public explore taste
uses the edition's own proof anchors: it recomputes supported Aletheia kernels,
otherwise names the grounded source trail or declared kernel path without
inventing a value. No learner review state enters that spectator projection. At
real break dayparts, the adapter also selects no more than two due V9 traces
with Mnemosyne's scheduler and commits explicitly graded answers through the
existing FSRS transition.

Review requests are short-lived and bind the learner, lesson checkpoint, and
trace revision. The repository boundary requires atomic CAS and idempotent
receipts so a retry cannot advance a card twice. Fading stars, kernel drops, and
the weekly report all remain read-only projections over that state: stars never
advance a card, kernel drops recompute from the declared Aletheia reference, and
the private Weekly Wonder Report aggregates one complete seven-day range of
committed FSRS answer receipts. Its aggregate is preannounced with a stable
identity and a 60-minute lead for a Rail-scheduled wind-down moment; empty weeks
say only that no reviews were recorded and that cards still wait safely. The
player face keeps those private due cards and their fading-star retrievability
separate from the communal Daily Wonder face. Private V1 Metis and Nisaba
continuations also fold into that player tile through their canonical
`oshun.domain.*.adapter@1.x` read and launch contracts. The fold selects no more
than one real return per room, preserves exact V1 web/app destinations, and
never creates `v1.metis` or `v1.nisaba` Rail channels; the complete schoolroom,
reading desk, and mobile study flows remain V1-owned destinations.