Test-Driven Development guidance. Use during feature-dev Phase 5 (Implementation) or any code implementation. Ensures tests are written BEFORE implementation code, following Red-Green-Refactor cycle.
Test middleware functions. Use when testing authentication, validation, or other middleware. Triggers on "test middleware", "test auth middleware", "test validation middleware".
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes
Use when writing UI tests, recording interactions, tests have race conditions, timing dependencies, inconsistent pass/fail behavior, or XCTest UI tests are flaky - covers Recording UI Automation (WWDC 2025), condition-based waiting, network conditioning, multi-factor testing, crash debugging, and accessibility-first testing patterns
Fullstack testing - unit, integration, E2E, coverage
Cucumber/Gherkin BDD 最佳實踐指導技能，提供 Gherkin 撰寫規範、情境設計原則、Discovery Workshop 引導與常見反模式識別，協助團隊撰寫高品質的行為驅動開發規格。
Generate test-data-bot factory builders for TypeScript types to create mock data for tests and Storybook. Use when creating mock data, test fixtures, or Storybook story data.
Use when encountering any bug, test failure, or unexpected behavior before proposing fixes
Implements user stories by reading requirements, following coding standards, and executing tasks with comprehensive testing. Updates story files with implementation details and test results.
Flutter/Dart 測試異步資源管理守護者。用於：(1) 診斷測試卡住問題，(2) 審查測試代碼中的異步資源清理，(3) 提供 tearDown 最佳實踐，(4) 掃描潛在的資源洩漏風險。觸發場景：測試卡住、撰寫新測試、Code Review 測試代碼、執行 flutter test 前自動掃描。
TypeScript/Playwright Test + Generator/Healer Agents活用によるE2Eテスト作成パターンガイド。E2Eテスト実装時・data-testid属性設計時・Blazor Server SignalR対応時に使用。Phase B2で確立した93.3%効率化パターン + Phase B2-F2でTypeScript移行完了。
Verify web application changes work by launching the app stack and testing in a real browser. This skill should be used when the user asks to "verify the change", "test in browser", "check if it works", or after completing a PR to validate the implementation. Requires Playwright MCP server. MUST exit if Playwright MCP is unavailable.
Test cross-model context handoff integrity.
Reproduce, isolate, and fix a bug (or failing build/test), then summarize root cause, fix, and verification steps.
Write and run Rust tests using cargo test with unit tests, integration tests, doc tests, and property-based testing. Use when writing Rust tests or setting up test infrastructure.
Generate comprehensive async pytest tests for Quart endpoints, database operations, and WebSocket connections. Activates when writing tests or ensuring code coverage.
Phase 4 of disciplined development. Verifies implementation against design through unit and integration testing. Builds traceability matrices, tracks coverage, and loops defects back to originating left-side phases.
Use when implementing any feature or bugfix, before writing implementation code - write the test first using REAL systems (NO MOCKS), watch it fail, write minimal code to pass; ensures tests actually verify behavior by requiring failure first and real system integration
Test Java applications - JUnit 5, Mockito, integration testing, TDD patterns
