The two dated log sections had never been split, so every one of their 29 entries sat inline and the startup index had grown to 372 lines — which is the cost the two-tier scheme exists to remove, paid on every session that reads the file. 27 entries were over threshold. All 29 now have a detail file under persistent-memory.d/ and a one-line index entry that routes rather than restates. Index: 372 -> 93 lines. No archival. The soft cap fired, but every entry in this repo is dated 2026-09-21 or later, so the under-14-days guard held all of them back — and the split alone took the index well under the target without moving anything out of the active file. The in-flight section is rewritten for the post-release state: nothing is in flight, no gate is outstanding, and the next unit is explicitly recorded as the operator's undecided call rather than as a plan. The session's recommendation (U4, on three grounds) is written down so it does not have to be re-derived, alongside the two alternatives and why they are alternatives. Two dated predictions are carried forward with their dates and their instruments: the U5 adoption re-measure on 2026-09-29, which already reads 3 of 24 announced and 2 with a why from peers told nothing, and the .forever re-count a fortnight AFTER U4 lands, which is U4's own success criterion and is destroyed by running it early.
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Deterministic order is a cross-cutting v1 invariant
2026-09-21 · booth
Deterministic order is a cross-cutting v1 invariant —
operator directive, mid-implementation. Every ordered collection the Booth
renders must have a stated rule producing the same sequence on every render
of the same state; the rule can be anything defensible (byte order, time, an
explicit number, an arbitrary-but-recorded sequence), but no rule at all is
forbidden. It binds harder here than elsewhere because the Booth's job is
comparison — the operator judges tile 47 against tile 47 and refers to
artifacts positionally, so an order that moves between renders misfiles a flag
or a note rather than crashing. Recorded as ROADMAP.md § "Cross-cutting
invariant" (with the per-collection table) and CLAUDE.md invariant 6, and
tested. Still undecided and must be settled before those units ship: U7's
section ordering and compare pairing, and U6's bench listing.