aiup-nextjs

aiup-nextjs is the AI Unified Process layer plugin for a Next.js App Router client: the UI layer of a project that combines one plugin per layer with aiup-core. It builds the routes and components of a use case on top of the REST API the API layer provides, and tests them with Vitest and React Testing Library.

In this stack Next.js is a client-side UI: it talks to the backend only over HTTP, so a project with this plugin always has an API layer as well, nest-rest of aiup-nestjs or spring-rest of aiup-spring-boot. The contract types are written field by field from that layer's DTOs, and the JSON contract between the two is checked after every implementation. Server Components and Server Actions reach data through the same API, never through a database.

The skills derive from the combined plugin aiup-nestjs-nextjs, which a contributor wrote.

Skills

Layer	Skill	Result
UI	`/nextjs-ui`	Routes, client components, contract types, calls to the API through relative `/api` paths
UI	`/nextjs-ui-test`	Vitest and React Testing Library component tests, `<Component>.test.tsx`

The skills are normally run by aiup-core, not one by one:

/stack        # records Next.js as the UI layer in docs/architecture/stack.md
/use-case-implement UC-001 # … → nest-rest → nextjs-ui
/use-case-test UC-001      # … → nest-rest-test → nextjs-ui-test → playwright-e2e-test
/use-case-coverage UC-001  # the one audit, using the markers these skills keep in docs/architecture/stack.md

Each skill can also be run directly (/nextjs-ui UC-001); it then reads the same inputs and applies the same rules as /use-case-implement or /use-case-test, works on the UI layer only, and ends with a Next: line.

A Server Component cannot be rendered in jsdom. /nextjs-ui-test reports one as not reachable and leaves it to the E2E layer, and says so plainly when **E2E scope:** Test cases only means no browser test of the use case follows.

Combinations

Project	Plugins next to `aiup-core`
Next.js, NestJS, Drizzle	`aiup-drizzle`, `aiup-nestjs`, `aiup-nextjs`, `aiup-playwright`
Next.js, Spring Boot, JPA	`aiup-flyway`, `aiup-jpa`, `aiup-spring-boot`, `aiup-nextjs`, `aiup-playwright`

Browser tests of the running application come from aiup-playwright.

Installation

Tessl

tessl install ai-unified-process/aiup-core
tessl install ai-unified-process/aiup-nextjs

Claude Code

/plugin marketplace add ai-unified-process/marketplace
/plugin install aiup-core
/plugin install aiup-nextjs

Install the other layer plugins of the project the same way. Do not combine layer plugins with a combined stack plugin (aiup-nestjs-nextjs) in one project. See the installation guides for other agents.

Prerequisites

aiup-core 3.14.0 or later, and docs/architecture/stack.md written by /stack.
A Next.js project using the App Router; Vitest with jsdom and React Testing Library for the tests.
An API layer plugin that hands over its endpoints and DTOs.

MCP servers

Server	Purpose
`context7`	Current Next.js, React, Vitest, and Testing Library documentation on demand

License

See LICENSE and NOTICE. "AI Unified Process" identifies the original methodology; derived works must retain the NOTICE file and must not present themselves as the official AI Unified Process.

ai-unified-process/aiup-nextjs