Use this skill when writing unit tests, mocking dependencies, testing pure functions, or measuring coverage with Vitest. Trigger words: ユニットテスト, 単体テスト, Vitest, モック, テストを書く, カバレッジ, describe, it, expect, vi.mock.
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vi.mock で差し替え、ロジックだけを検証する。// lib/price.test.ts
import { describe, it, expect } from 'vitest';
import { applyDiscount } from './price';
describe('applyDiscount', () => {
it('10% 割引を正しく計算する', () => {
expect(applyDiscount(1000, 0.1)).toBe(900);
});
it('割引率が範囲外なら例外', () => {
expect(() => applyDiscount(1000, 1.5)).toThrow();
});
});
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Use this skill when creating or reviewing Next.js Route Handlers (app/api), adding rate limiting, input validation, or auth to API endpoints. Trigger words: API ルート, Route Handler, app/api, エンドポイント, レート制限, 入力検証, CORS, ヘッダー, 認証付き API, hardening.
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Use this skill when implementing full-text search, autocomplete, or vector/semantic search and RAG with MongoDB Atlas. Trigger words: 全文検索, あいまい検索, オートコンプリート, ベクトル検索, セマンティック検索, 類似検索, Atlas Search, $search, $vectorSearch, RAG, embedding.
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Use this skill when implementing sign-in, sessions, authorization checks, or protecting routes and Server Actions. Trigger words: 認証, ログイン, サインイン, セッション, 認可, 権限チェック, Better Auth, Auth.js, 保護, ミドルウェア, getSession.
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Use this skill when starting a new session, opening this project for the first time, or when you need to recall the project's tech stack, hard rules, and which other skills exist. Trigger words: セッション開始, このプロジェクト, 全体像, どのスキル, 何から, getting started, overview.
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Use this skill when setting up or modifying CI pipelines, GitHub Actions workflows, or automated checks (lint, typecheck, test, build) for this project. Trigger words: CI, GitHub Actions, ワークフロー, パイプライン, 自動テスト, lint チェック, typecheck, ビルド検証, .github/workflows.
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Use this skill when writing end-to-end tests, browser automation, or verifying user flows in a real browser. Trigger words: E2E, Playwright, ブラウザテスト, ユーザーフロー, 結合テスト, シナリオテスト, ログインテスト, getByRole, expect.
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