Harness-engineering next-app-router

name: next-app-router version: '1.0.0' description: App Router architecture, layouts, nested routes, and route segments in Next.js 13+ stability: static cognitive_mode: advisory-guide type: knowledge tier: 3 triggers:

• manual platforms:
• claude-code
• gemini-cli
• cursor
• codex tools: [] paths:
• 'next.config.*'
• '/app//*.tsx'
• '/app//*.ts'
• '/pages//*.tsx' related_skills:
• next-server-components
• next-server-actions
• next-data-fetching
• react-hooks-pattern
• tanstack-prefetching
• next-error-boundaries stack_signals:
• next
• nextjs
• react keywords:
• app-router
• layouts
• nested-routes
• route-segments
• file-conventions
• app-directory metadata: author: vercel upstream: 'community/next.js-docs/app-router' state: persistent: false files: [] depends_on: []