hygiene(#268): pr-preservation drain-log for #435 (live-lock cadence reword)#447
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hygiene(#268): pr-preservation drain-log for #435 (live-lock cadence reword)#447
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Pull request overview
Adds a PR-preservation drain log for PR #435, capturing the two-wave review cascade around the “live-lock audit cadence” wording and a subsequent correctness reword.
Changes:
- Adds
docs/pr-preservation/435-drain-log.mddocumenting 3 drained threads across 2 waves. - Records the chosen “reword to current truth” resolution path and the follow-up cascade correction.
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…reword) Otto-268 backfill: drain-log for PR #435 (drain follow-up to #148: why-the-factory-is-different live-lock cadence claim + grammar), covering 3 threads across 2 waves with a clean self-induced-cascade pattern. Per Otto-250 training-signal discipline. Pattern observations capture four load-bearing patterns: 1. Cross-reviewer convergence on Wave 1 (Codex P2 + Copilot P1 flagging the same missing-FACTORY-HYGIENE-row) raised quality signal — same shape as #432's `warn` unbound finding. 2. Self-induced cascade: my Wave-1 fix introduced the Wave-2 finding (claim "separate BACKLOG items" implied plural; actual BACKLOG state is one row with multiple sub-items). Pattern: when fixing a claim, verify the new claim is also accurate against current-state. 3. Reword-option-(a)-vs-(b) decision template generalizes: when doc asserts X but X doesn't exist, prefer reword-to-current-truth over add-the-thing-asserted (unless thing is small + isolated). 4. PR-mechanics: 4 of 7 cascade-PRs in this session (#135, #231, #432, #435) went through wave-1 + wave-2 cascade pattern; the reviewer-cascade is a consistent property of the merge-trigger surface, not a per-PR oddity. Closes the session-drain-log backfill (Otto-268) for the major PRs drained in this session: #135 / #235 / #432 / #434 / #195 / #219 / #206 / #377 / #231 / #85 / #435 (11 PRs total covered across drain logs #437-#447).
…ntifier xref Codex P2 + Copilot threads on #447 caught: - Thread 1.2 missing the `Reviewer:` field even though the drain-log schema (intro paragraph) declares per-thread reviewer authorship. Added `Reviewer: copilot-pull-request-reviewer`. - Stale `docs/BACKLOG.md lines 1313-1328` citation: those lines now contain the Server Meshing section; the live-lock-smell cadence row drifted to ~L1452 in the P1 tooling section. Replaced with the stable identifier (heading text 'Live-lock smell cadence (round 44 auto-loop-46 absorb, landed as `tools/audit/ live-lock-audit.sh` + hygiene-history log)') so future readers don't chase a moving line-number target. Same stable-identifier-vs-line-number-xref pattern flagged on #423's `near line 4167` finding. Documented in `_patterns.md` — line numbers decay on every adjacent edit; stable identifiers decay only on rename. Adopting heading text as the stable cite. The bare `:111`/`:113` thread location format (Otto-250 file:line shape conformance) is the broader Otto-268-wave divergence documented in PR #467 known-divergence section — deferred to maintainer review per that framing.
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…iated shape divergence (#467) * hygiene(_patterns.md): document Otto-250-canonical vs Otto-268-abbreviated drain-log shape divergence Multiple post-merge reviewer threads on the Otto-268-wave drain-logs (#437-#465) flagged that the abbreviated inline shape doesn't match the canonical Otto-250 multi-section format used in older drain-logs (#108, #247, etc.). The findings are correct: the shapes ARE different, and the abbreviated shape compresses verbatim reviewer/reply text into short prose. Documenting both shapes here in `_patterns.md` as a known divergence + three maintainer-decision options: (a) Rewrite — high churn, highest faithfulness. (b) Accept divergence — document both as valid. (c) Hybrid — canonical for substantive logs (math / crypto / algorithms / ADRs); abbreviated for low-substance. Until maintainer decides, drain-runners writing future logs default to canonical; existing Otto-268-wave logs stay abbreviated with this known-divergence pointer. This is the right place for the documentation per the synthesis- over-history surface-class declaration: `_patterns.md` reflects current corpus state including known shape divergences, separate from the per-log records. Composes with the per-PR drain-log threads currently flagging the shape-conformance gap on #437/#441/#442/#444/#445/#446/#447/#449/ #460/#461/#464/#466 — those threads can now reply with a one-line pointer to this section instead of repeating the maintainer- decision-pending framing. * hygiene(#467): fix 4 Copilot findings on shape-divergence section Four Copilot catches converging on the same root cause: the shape-divergence section was citing drain-log PR-numbers (#437-#465) when readers will look for #437-drain-log.md etc. and not find them — drain-log FILE numbers reference the PRESERVED PR (e.g., #421/#422/#423), not the drain-log PR itself. The current file corpus ends at #434. Fixes: - :374 + :394 — drop the misleading "#437-#465" PR-range citation; cite the actual in-repo abbreviated-shape examples (#421/#422/#423) by file path; drop the unsupported "22+" numeric estimate in favour of "the 2026-04-25 backfill wave". - :380 — abbreviated template snippet now matches what the in-repo abbreviated logs actually use: `Finding:` bullet included, `Thread ID:` and `:LINE` placeholders dropped (those are canonical-shape fields, not abbreviated-shape). Reader can now copy/paste the template accurately. - :388 — soften the "Substance is preserved" overstatement to the objective claim: key metadata (reviewer/severity/outcome/ commit) is preserved; verbatim original-comment + verbatim reply text are NOT preserved; multi-section structure + file:line locator + Thread ID are also typically omitted. The fixes are themselves Class A (count-vs-list cardinality on "#437-#465" range) + truth-drift on a freshly-landed doc — appropriate self-application of the discipline this section documents.
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Summary
Otto-268 backfill: drain-log for PR #435 (drain follow-up to #148: live-lock cadence + grammar), covering 3 threads across 2 waves.
This closes the session-drain-log backfill for the major PRs drained in this session: #135 / #235 / #432 / #434 / #195 / #219 / #206 / #377 / #231 / #85 / #435 (11 PRs total covered across drain logs #437-#447).
Per Otto-250 (PR review comments + responses + resolutions are high-quality training signals).
Coverage
Pattern observations
warnunbound).Test plan
docs/pr-preservation/*-drain-log.mdtemplate.🤖 Generated with Claude Code