Testing and QA: skills, plugins, subagents, slash commands and mcp servers

playwright-pro Alireza Rezvani skill This skill creates, reviews, repairs, and migrates Playwright tests. Use it for end-to-end suites, browser automation, and CI/CD test work. Claude Code 682installs pr-review-expert Alireza Rezvani skill Reviews GitHub PRs and GitLab MRs for security risks, breaking changes, and test gaps. Use it before merging changes that affect shared code or APIs. Claude Code 675installs stackhawk-security-onboarding official github subagent This subagent checks whether a repository has an application or API worth testing, then prepares StackHawk configuration and a GitHub Actions workflow. Use it to set up security scans for an app. GitHub Copilot 179installs prompt-engineer-toolkit Alireza Rezvani skill Tests, compares, and versions marketing prompts against structured cases. Use it when prompt quality needs evidence before a rollout or model change. Claude Code 623installs ab-test-setup Alireza Rezvani skill This skill helps plan, launch, and analyze A/B tests. Use it when you need to test a hypothesis, copy variant, or product change. Claude Code 623installs stripe-integration-expert Alireza Rezvani skill A Claude Code skill for Stripe subscriptions, one-time payments, usage-based billing, and webhooks. Use it when adding billing or debugging event delivery. Claude Code 612installs experiment-designer Alireza Rezvani skill Plans product experiments, calculates sample size, and interprets A/B outcomes. Useful when setting up rigorous tests in Claude Code. Claude Code 608installs skill-tester Alireza Rezvani skill Checks skill structure, scripts, and quality in a repository. Use it when authoring a skill, auditing one, or adding skill QA to CI. Claude Code 608installs spec-driven-workflow Alireza Rezvani skill Enforces writing a complete specification before generating code. It structures requirements, acceptance criteria, and agent boundaries before implementation starts. Claude Code 600installs focused-fix Alireza Rezvani skill Enforces a five-phase protocol to repair broken features end-to-end. Helps when isolated bug fixes fail and an entire module needs systematic overhaul. Claude Code 600installs laravel-specialist VoltAgent Community subagent A Claude subagent for Laravel 10+ and PHP 8.2+ work: Eloquent models, queues, API resources. Useful when a Laravel codebase needs structure, not guesswork. Claude Code 418installs autoresearch-agent Alireza Rezvani skill Runs repeated file experiments against a measurable metric, keeping gains and reverting failures. Use it for code, tests, prompts, or content. Claude Code 589installs full-page-screenshot Alireza Rezvani skill Captures an entire web page as one PNG, including content below the fold. Useful for SPAs, lazy-loaded images, and very tall pages. Claude Code 564installs statistical-analyst Alireza Rezvani skill Sizes A/B experiments before launch, runs hypothesis tests with Python scripts, and evaluates practical effect sizes for measured results. Claude Code 559installs blockchain-developer VoltAgent Community subagent This subagent helps build smart contracts, DApps, and blockchain protocols with attention to security, gas costs, and Web3 integration. Use it for Solidity and EVM work. Claude Code 375installs screen-recording official github skill Record browser or desktop actions as GIFs and annotate selected frames. Use it to show a feature, bug reproduction, or fix in documentation and pull requests. GitHub Copilot 149installs accessibility-tester VoltAgent Community subagent This subagent tests interface accessibility, WCAG conformance, and assistive technology support. Use it for audits and accessibility fixes in a project. Claude Code 346installs django-developer VoltAgent Community subagent Subagent for Django 4+ and Python 3.11+ web development in Claude Code. Handles ORM query optimization, Django REST Framework APIs, and async views. Claude Code 344installs chaos-engineering claude-code-skills skill Plans resilience experiments and computes blast radius. Helpful when running Game Day tests or verifying fault injection safely. Claude Code 486installs spring-boot-engineer VoltAgent Community subagent This subagent helps plan and build Spring Boot 3+ applications, including microservices and reactive services. Use it when a project involves cloud deployment or enterprise integrations. Claude Code 336installs csharp-developer VoltAgent Community subagent This subagent inspects .NET solutions and helps build C# applications, ASP.NET Core APIs, and Entity Framework Core features. Use it when async code or clean architecture is part of the task. Claude Code 276installs chaos-engineer VoltAgent Community subagent This subagent plans controlled failure experiments and checks how a system recovers. Use it to prepare for incidents or run a game day. Claude Code 267installs rust-engineer VoltAgent Community subagent Guides Rust 2021 development focusing on memory safety, zero-cost abstractions, and Miri validation. Handy for systems programming, embedded devices, and async services. Claude Code 262installs javax-to-jakarta-migration official github skill Migrates Java code from the javax.* namespace to jakarta.*. Use it for an explicit Jakarta EE or Tomcat 10+/11 migration request. GitHub Copilot 96installs cloud-network-insights official google skill Set up Cloud Network Insights, configure AppNeta synthetic monitoring, and check network or web paths. Use it when managing Monitoring Points across cloud and on-premises environments. Claude Code Gemini CLI CX Codex 78installs android-emulator-qa official OpenAI skill This skill checks Android app flows in an emulator through adb. Use it for navigation tests, UI bug reproduction, screenshots, and logcat capture. CX Codex GP ChatGPT 308installs rails-expert VoltAgent Community subagent Tailors Rails architecture to version 7.x or 8.x based on Gemfile.lock. Handles Hotwire, Solid Queue jobs, database migrations, and test suites. Claude Code 199installs frontend-app-builder official OpenAI skill This skill designs and builds frontend apps, websites, and games, then checks the result in a browser. Use it for a new interface or an explicit redesign request. CX Codex GP ChatGPT 252installs test-gap-audit official github skill Runs a read-only audit to find missing or weak test coverage. It helps you verify if critical behavior is tested before merging code. GitHub Copilot 72installs elixir-expert VoltAgent Community subagent Reviews an Elixir project and helps implement changes using OTP, Phoenix, and Ecto. Use it when you need to reason about process architecture, fault handling, or tests. Claude Code 167installs react-container-presentation-component official github skill This skill scaffolds React components with the Container/Presentation pattern and follows the project’s TypeScript, Storybook, and SCSS conventions. GitHub Copilot 65installs bug-reproduction-brief official github skill Turns a vague or intermittent bug report into a minimal reproduction with evidence. Use it when the failure depends on the environment or is hard to repeat. GitHub Copilot 62installs frontend-testing-debugging official OpenAI skill Guides coding agents through structured frontend testing, UI checks, and bug investigations. Runs validation loops using Browser tools or local Playwright. CX Codex GP ChatGPT 159installs clinical-research claude-code-skills skill Plan a prospective clinical study by selecting endpoints, estimating sample size, and checking feasibility before a phase-gate review. Claude Code 156installs bug-receipt official github skill Closes defects and incidents using a mandatory BUG RECEIPT with VERIFIED, PARTIAL, or BLOCKED status. It stops the agent from guessing repairs. GitHub Copilot 43installs poka-yoke official github skill Helps shape APIs and states so common mistakes are harder to express. Use it to audit code for footguns or to close a recurring class of bugs. GitHub Copilot 31installs roslyn-analyzers official github skill This skill guides Roslyn analyzer, code fix provider, and incremental source generator work, including review, tests, debugging, and NuGet packaging. GitHub Copilot 30installs webmcpify official github skill This skill turns a web app into WebMCP tools for AI agents, checks them in a real browser, and heals issues found during verification. GitHub Copilot 27installs mcp-release-qa official github skill Tests an MCP server in a live protocol session and compares its runtime capabilities with source and docs. Use it when reviewing a release or install path. GitHub Copilot 26installs ios-ettrace-performance official OpenAI skill A Codex skill for capturing symbolicated ETTrace profiles in the iOS Simulator. It helps pinpoint launch latency and CPU-heavy call stacks for a specific flow. CX Codex GP ChatGPT 87installs