board: PR #44 arc entry (R1 → minor 10, the whole arc) - #45
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Hygiene-only; per the termination clause this generates no further arc obligation. The one substantive note the entry carries: the PR body predates its own last three commits (it still says R2 is not landed), so the arc entry is the current record of what actually merged. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DCfrD5y19cvFc4AoyydXYv
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Caution Review failedThe pull request is closed. ℹ️ Recent review info⚙️ Run configurationConfiguration used: Organization UI Review profile: CHILL Plan: Pro Plus Run ID: 📒 Files selected for processing (4)
📝 WalkthroughWalkthroughThe change adds normative zero-copy and memory-safety guidance, records an audit of those rules, and appends reproducible 64K benchmark and PR history entries. It does not alter exported or public entity declarations. ChangesDocumentation and measurements
Estimated code review effort: 2 (Simple) | ~10 minutes Suggested reviewers: Poem
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Runs measure_wal_curve fresh (lance-graph@1d7bc1b1) to answer "measure the 64k execution end first" before any BatchWriter/kanban seam design. Finding: compute parallelizes as documented (3.27x @ workers=8), but the cast/collect/wal/apply convergence tail is flat across every worker count and dominates the cycle (~90% of the workers=8 total) -- the sequential publish boundary this repo's own maxims already name, not compute, is where the seam design should focus.
Operator issued a 32-point zero-copy/memory-safety addendum. Audited it mechanically against the tree (generation-checked handles, checked- overflow bounds arithmetic, explicit alignment/endianness contract fields, manifest-first handshake ordering, FFM quarantine, named/bounded materialization only, independently-derived layout parity, SIMD-backend- diagnostic-only, worker-topology-substrate-private) rather than redesigning from taste. No gap found -- every item is already structurally enforced. Pins the doctrine as a compact, cited section in CLAUDE.md so future membrane PRs are reviewed against it directly.
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Board hygiene only — one arc entry, per the
every PRrule and the termination clause (no further obligation generated).The substantive point the entry carries: #44's body predates its own last three commits. It still reads "R2 — measured as a lab arm, not landed", and commit 5 then landed exactly that (ABI minor 10, the columnar store). Whoever reads the merged PR gets commit 1's state; the arc entry is the current record of what actually merged — all five rungs (R1 → §13 de-stale → minor 9 → doctrine E1–E6 + J2 → minor 10), each with its gates, disable-runs, and the two banked measurements.
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Documentation
Performance