hygiene(tick-history): 2026-05-01T19:07Z — 2 merged + Copilot false-positive triage + Docusaurus fix

docs/hygiene-history/ticks/2026/05/01/1907Z.md

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+| 2026-05-01T19:07:00Z | opus-4-7 / autonomous-loop tick | 98fc7424 | Three-PR-merge tick + Copilot-false-positive triage + Docusaurus factual correction. **Merged**: #1134 (1835Z tick-history with math fix) at 19:04:32Z; #1137 (1852Z tick-history) at 19:04:35Z; #1139 (1857Z tick-history) attempted auto-merge but stayed OPEN this tick. Copilot threads on tick-history PRs (#1135 / #1136 / #1138) classified as false-positives — they confused GitHub's diff line-number prefix (`1 \|`) with the actual file content. Verified via `od -c` on a merged shard: starts with `\| 2026-...`. The "P0 schema violation" claim was Copilot reading the diff display as file content. 3 false-positive threads resolved. **#1125 (B-0154 Pages)** had a substantive Docusaurus correction: my "React hydration blocks crawlers" claim was factually wrong — Docusaurus uses SSG and produces plain HTML. Updated the table + analysis: Docusaurus is now properly framed as a strong runner-up (Node-native + SSG + MDX-Markdown-with-React adds capability we don't currently need); Astro still wins on typed content-collections + minimal complexity for our `docs/**/*.md`. Decision verdict preserved (Astro), reasoning sharpened. Cron 98fc7424 healthy. | [#1134 + #1137 MERGED via auto-merge; #1135/1136/1138 false-positives resolved (3 threads); #1125 Docusaurus fix pushed (175db7c) + 1 thread resolved] | Two patterns this tick. (1) **Copilot diff-display false-positive class**: when GitHub renders the diff with line-number prefix, AI reviewers can mistake the prefix for file content. The claim "first non-empty line must start with `\|`" was correct schema; the actual file DOES start with `\|`; only the diff-display had a "1" line-number prefix. Mitigation: pre-resolve a thread by `od -c` on the file BEFORE the schema-checker runs, and report file-content-vs-diff-display delta in the resolution comment. (2) **Factual-claim verification class**: my Docusaurus claim was wrong because I didn't search-first. Otto-364 main-discipline IS the prevention; Copilot caught what my training-data assumption missed. Composes with prefer-mechanical-anchors (#1131 main): Copilot at PR-review IS the external buddy. |