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

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 pester-migration official github skill Walks a Pester suite through the next major version and gets it passing again. Useful when bumping the module breaks your *.Tests.ps1 files. GitHub Copilot 25installs application-integration-authoring official google skill Manage Google Cloud Application Integration versions through the REST API or Python client. Use it to publish workflows and promote versions across environments. Claude Code Gemini CLI CX Codex 16installs pester-should-migration official github skill Converts classic Pester v5 Should -Be assertions to the Pester v6 Should-Be syntax without spaces. Designed for modernizing PowerShell test suites. GitHub Copilot 19installs agent-harness Alireza Rezvani skill Turns a goal into tasks with machine-run checks, then keeps the loop open until each task is verified or explicitly waived. Use it for work that needs a verifiable close. Claude Code 68installs game-playtest official OpenAI skill Guides agents through browser game playtests and frontend QA. It focuses on boot checks, controls, HUD overlay balance, and visual regression capture. CX Codex GP ChatGPT 62installs build-run-debug official OpenAI skill Build, launch, and debug macOS apps through a shell-first Xcode and Swift workflow when startup or runtime failures need investigation. CX Codex GP ChatGPT 60installs swiftpm-macos official OpenAI skill Builds, runs, and tests SwiftPM macOS packages and executables. Use it when Package.swift is the main entry point and no Xcode project is present. CX Codex GP ChatGPT 58installs example-skills official anthropics plugin A collection of Claude skill examples for web testing, MCP work, design and documents. Use it to inspect skill structure or start a custom skill from a template. Claude Code Claude.ai ★ 183,434repo stars ios-simulator-browser official OpenAI skill Mirrors an iOS Simulator into the Codex in-app browser and renders SwiftUI previews from Swift packages with hot reload. Useful for testing UI and capturing visual proof without Xcode Canvas. CX Codex GP ChatGPT 53installs