frontend-impl-playbook

Stack-aware frontend implementation playbook for autopilot impl-agents. When a task touches *.tsx/*.jsx/*.css files, dispatchers prepend this playbook to the agent's brief so the first draft already meets the design-quality floor (reuse existing primitives, design tokens only, four states by default, accessibility baseline, mobile-first). Read this skill manually before implementing UI changes if your autopilot version does not auto-attach it yet.