全部能力

Ruby on Rails testing best practices for writing effective, maintainable test suites with RSpec. This skill should be used when writing, reviewing, or…

Runs existing test suite to catch regressions after implementation changes. Use when Story needs regression verification. No status changes.

Generate wrapper interfaces and DI registration for hard-to-test static dependencies in C#. Produces IFileSystem, IEnvironmentProvider, IConsole, IProcessRunner wrappers, or guides adoption of TimeProvider and IHttpClientFactory. USE FOR: generate wrapper for static, create IFileSystem wrapper, wrap DateTime.Now, make static testable, make class testable, create abstraction for File.*, generate DI registration, TimeProvider adoption, IHttpClientFactory setup, testability wrapper, mock-friendly interface, mock time in tests, create the right abstraction to mock, how to mock DateTime, test code using File.ReadAllText, what abstraction for Environment, how to make statics injectable, adopt System.IO.Abstractions, make file calls testable. DO NOT USE FOR: detecting statics (use detect-static-dependencies), migrating call sites (use migrate-static-to-wrapper), general interface design not about testability.

Expert in browser automation using Chrome DevTools Protocol (CDP) and WebDriver. Specializes in secure web automation, testing, and scraping with proper…

A/B test subject line variations using proven copywriting frameworks. Predict open rates based on historical performance.

Behave as a Senior QA Engineer covering the complete software testing lifecycle from requirements analysis through test automation and continuous improvement.…

Format citations in APA, MLA, Chicago, IEEE, Harvard styles from structured data, DOI/ISBN lookup, or manual entry. Generate bibliographies with auto-sort.

Build production Rust CLIs with Clap: subcommands, config layering, validation, exit codes, shell completions, and testable command surfaces

Wrap high-verbosity shell commands with RTK to reduce token consumption. Use when running git log, git diff, cargo test, pytest, or other verbose CLI output…

Turn backend test ambiguity into one practical backend test packet. Use when the user needs API/service/repository/auth-flow coverage design, fixture or seed/reset strategy, container-vs-mock dependency choices, contract/API compatibility checks, or flaky backend-suite stabilization across local and CI. Route org-wide testing policy to `testing-strategies`, API shape decisions to `api-design`, and auth implementation to `authentication-setup`.

SQL Server 2025 and SqlPackage 170.2.70 (October 2025) - Vector databases, AI integration, and latest features

Staff-level codebase health review. Finds monolithic modules, silent failures, type safety gaps, test coverage holes, and LLM-friendliness issues.

Accessibility patterns for WCAG 2.2 compliance, keyboard focus management, React Aria component patterns, cognitive inclusion, native HTML-first philosophy,…

Conduct preliminary research on a topic and generate research outline. For academic research, benchmark research, technology selection, etc.

Cross-compilation with GCC skill for embedded and multi-architecture targets. Use when setting up cross-gcc toolchains, configuring sysroots, building for…

Sets up end-to-end testing with Cypress or Playwright including page objects, fixtures, and CI integration. Use when users request "E2E testing", "Cypress…

AI-powered E2E testing for any app — Flutter, React Native, iOS, Android, Electron, Tauri, KMP, .NET MAUI. Test 8 platforms with natural language through MCP.…

Use when writing tests with Swift Testing (@Test, #expect, #require), migrating from XCTest, implementing async tests, or parameterizing tests.

Debug regex patterns with visual breakdowns, plain English explanations, test case generation, and flavor conversion. Use when user needs help with regular…

ANTI-PATTERN - Example showing violations of self-containment (DO NOT COPY)