alpine-jsAlpine.js v3 (3.17.x) guidance for reactive UI written directly in HTML. Use this skill BEFORE writing or editing any Alpine markup, even a small snippet you could write from memory: it carries version-specific rules (template-only directives, :key, x-cloak CSS, x-trap focus handling, plugin load or
htmx-debugDiagnose htmx problems. Use this skill whenever a user reports htmx behaving unexpectedly, even when the cause looks obvious, because the checklist separates htmx 2.x from htmx 4 symptoms (inheritance, event names, error swapping, polling) that are easy to misattribute. Trigger on: a request that ne
htmx-upgradeStep-by-step migration of a codebase from htmx 2.x to htmx 4. Use this skill whenever the user asks to upgrade, migrate, port, convert or modernize htmx code, mentions htmx 4 or "the fetchening", pastes a template asking for the htmx 4 version, asks what would change or whether they should move to h
htmxhtmx guidance covering both supported lines: htmx 2.x (npm "latest", supported indefinitely) and htmx 4 (stable since August 2026 with explicit :inherited attribute inheritance, colon event names, 4xx/5xx swapping, no hx-ext, no 286). Use this skill BEFORE writing or editing any htmx markup, even on