原始内容
Testable Next.js Skill Plugin for Claude Code
A Claude Code plugin that provides expert-level guidance for writing testable Next.js applications with minimal test deltas and stability-first design.
Features
- Testable by design: Clear seams, deterministic behavior, dependency injection
- Minimal test delta: Smallest meaningful automated test for each change
- Stability tactics: Reduce flaky tests with proven patterns
- Framework-aware: Covers App Router, RSC, Server Actions, Route Handlers, Proxy/middleware
- Multi-stack support: Jest, Vitest, Playwright, Cypress, MSW
What's Included
skills/writing-testable-nextjs/
├── SKILL.md # Main instructions (loaded by Claude Code)
├── README.md # Skill overview
├── EVALS.md # Evaluation prompts for testing the skill
├── CHANGELOG.md # Version history
├── VERSION # Current version
├── PLAYBOOK_README.md # Playbook overview
├── reference/ # Deep documentation (loaded on demand)
├── templates/ # Test file templates
├── checklists/ # Pre-flight checklists
└── snippets/ # Copy-paste code snippets
Installation
Option A: As a Claude Code plugin (recommended)
git clone https://github.com/kndoshn/testable-nextjs-skill-plugin.git
Then register the plugin in Claude Code:
claude plugins:add /path/to/testable-nextjs-skill-plugin
Or add to your Claude Code settings manually.
Option B: Copy into your project
mkdir -p .claude/skills
cp -R skills/writing-testable-nextjs .claude/skills/
Option C: Personal installation
cp -R skills/writing-testable-nextjs ~/.claude/skills/
Usage
After installation, ask Claude Code for Next.js testing tasks. The Skill activates automatically when your request matches its scope.
Example Prompts
"Add tests for this Server Action."
"How should I test this RSC component?"
"Make this route handler testable."
"Review my test for flakiness."
"What's the minimal test delta for this change?"
Documentation
See the Skill's own documentation for details:
- SKILL.md - Main instructions
- README.md - Skill overview
- EVALS.md - Evaluation prompts
- PLAYBOOK_README.md - Playbook overview
Compatibility
- Next.js: 13+ (App Router), Pages Router also supported
- Test frameworks: Jest, Vitest, Playwright, Cypress
- Mocking: MSW, native mocks
License
MIT