Verified: TestFeaturedSkills; market-featured-skill.test.cjs, Chromium and WebKit, en/zh/ja/de at 520px, 8 pass (4 fail on the old library.js); market-have and skill-online-local pass (34); a livemarket-tagged run of InstallMarketSkill in a sandbox HOME fetched the real skill from GitHub into the library; npx skills add magpie-community/plugins -l lists it. go test ./...: all pass but TestSetAnswersWhileDevinAndProvidersHang (2.8s under two other -count=5 suites); alone -count=5 passes.