# Next Best Practices > Broad Next.js guidance modeled after common reusable skill packs. Use when this capability is needed. - Skill: `tomevault-io/next-best-practices-28` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/next-best-practices-28` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/next-best-practices-28/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Web & Frontend - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/next-best-practices-28 --- ## Use When Use when adding or restructuring pages in either app. ## Do - Keep route files under `src/app`. - Prefer server-rendered pages unless browser state is required. - Inspect the app dependency and existing route structure before copying patterns. ## Do Not - Assume sibling apps share the same framework-major behavior. - Introduce client boundaries for static page composition. ## Example Both admin and storefront use App Router, but route composition and shared dependencies differ. ## See Also `../nextjs/SKILL.md` --- > Source: [atheory-ai/skillex-demo](https://github.com/atheory-ai/skillex-demo) — distributed by [TomeVault](https://tomevault.io).