Shipped how-to-calculate-aspect-ratio end-to-end with coverage gates 0b→2→4→all; sample 1920×1080 → 16:9 and scale W 1280 → H 720; catalog count 72.

Date: 2026-08-09 08:33 Summary: Shipped how-to-calculate-aspect-ratio end-to-end with coverage gates 0b→2→4→all; sample 1920×1080 → 16:9 and scale W 1280 → H 720; catalog count 72.

[question] Ship tools SERIAL end-to-end (Tool A first): how-to-calculate-aspect-ratio (§12 #20). NOT YMYL. Related: unit-converter, square-feet. Title: Aspect Ratio Calculator — How to Calculate and Scale Ratios. Presets 16:9/4:3/1:1 as options not URLs. Sample: 1920×1080 → 16:9; scale W to 1280 → H 720. Full briefs+gates+10 locales+inventory §9/#112 §12/#20+TSV+README+isolation+dev-log.

[try to solve] Shipped how-to-calculate-aspect-ratio (§12 #20 / §9 #112). Sample: 1920×1080 → 16:9; target width 1280 → height 720. Catalog tool count: 72. Gates coverage:gate 0b→2→4→all, build:site, lint:seo, and CROSS_TOOL_UPDATE=1 isolation all passed; independent ten-locale rewrite; inventory/TSV/README marked live.

[actions]

work-tasks/how-to-calculate-aspect-ratio/00–03
src/pages/howToCalculateAspectRatioPage.ts
src/site/tool-catalog.d/how-to-calculate-aspect-ratio.json
src/site/i18n/tools/how-to-calculate-aspect-ratio/{en,zh,es,ar,pt,id,fr,ja,ru,de}.ts
public/icons/tools/how-to-calculate-aspect-ratio.svg
docs inventory §9/#112 §12/#20 + Omni/ToolDone TSV
README en+zh tool list
npm run coverage:gate phase=0b|2|4|all; build:site; lint:seo; CROSS_TOOL_UPDATE=1 lint:tool-isolation

Shipped how-to-calculate-aspect-ratio end-to-end with coverage gates 0b→2→4→all; sample 1920×1080 → 16:9 and scale W 1280 → H 720; catalog count 72. | Dev Logs