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

incremental-implementation addyosmani skill Directs agents to deliver code in thin, verified vertical slices instead of bulk edits. Fits multi-file refactoring and feature work behind flags. Claude Code CX Codex Cursor +1 61,300installs test-driven-development addyosmani skill This skill guides work through red-green-refactor: write a failing test, add the smallest passing code, then refactor. Use it for logic, bugs, and behavior changes. Claude Code CX Codex Cursor +1 61,300installs browser-testing-with-devtools addyosmani skill Connects your coding agent to Chrome via DevTools MCP. Helps inspect the live DOM, catch console errors, check network payloads, and visually verify UI fixes. Claude Code CX Codex Cursor +1 57,900installs ci-cd-and-automation addyosmani skill Builds a GitHub Actions CI/CD pipeline for a repo: lint, type check, tests, build and dependency audit chained as gates on every pull request. Claude Code CX Codex Cursor +1 57,500installs doubt-driven-development addyosmani skill This skill sends non-trivial decisions to a fresh-context reviewer looking for flaws. Use it before changes that are hard to undo or costly to debug later. Claude Code CX Codex Cursor +1 56,100installs next-dev-loop vercel skill Checks that an edit to your Next.js app actually works in a running app, not just that it compiles. Built for the next dev loop. Claude Code CX Codex Cursor +1 22,000installs next-cache-components-adoption vercel skill This skill helps enable Cache Components in a Next.js app and work through route errors until the build passes. Use it when migrating an App Router project. Claude Code CX Codex Cursor +1 21,200installs next-cache-components-optimizer vercel skill Optimizes Next.js App Shell UI on hard and soft navigations. It sets up failing Playwright instant() checks and guides routes to green. Claude Code CX Codex Cursor +1 18,700installs break-ui emilkowalski skill This skill tests a UI with realistic edge-case data and reports what breaks. Use it to stress-test a component or screen during development. Claude Code CX Codex Cursor +1 63,300installs constraint-driven-development addyosmani skill Turns a project's quality bar into CONSTRAINTS.md with real numbers, then watches the diff for weakened checks and deleted tests. Claude Code CX Codex Cursor +1 32,800installs ab-testing coreyhaines31 skill Gives the agent a method for planning an A/B test: hypothesis, metrics, sample size, launch checklist and a straight read of the results. Claude Code CX Codex Cursor +1 76,700installs code-reviewer official Anthropic subagent Reviews code changes against CLAUDE.md project rules and flags material defects. Run it before a commit or pull request. Claude Code 31,050installs code-reviewer official Anthropic subagent This subagent checks code changes for bugs, security issues, and project-rule violations. Use it when a review should focus on findings that matter. Claude Code 31,050installs next-partial-prefetching-adoption vercel skill Adopts Partial Prefetching in a Next.js app and checks whether prefetched UI survives the change. Use it when moving routes to the new prefetch model. Claude Code CX Codex Cursor +1 9,200installs fix-security-vulnerabilities-with-strix usestrix skill This skill triages validated Strix findings, fixes their root causes, and runs Strix again to verify the result. Use it after a CLI or cloud scan. Claude Code CX Codex Cursor +1 15,500installs owasp-top-10-testing usestrix skill Runs Strix AI agents to execute exploits across OWASP Top 10:2025 categories. Useful for verifying attack paths with concrete proofs-of-concept before audits. Claude Code CX Codex Cursor +1 12,600installs application-security-testing usestrix skill This skill selects tests for source code, a live web app, APIs, and CI, then turns confirmed findings into a ranked remediation plan. Use it for an AppSec review. Claude Code CX Codex Cursor +1 12,300installs peekaboo openclaw skill Captures macOS UI and runs desktop actions via the Peekaboo CLI. It helps agents read active windows and trigger UI actions. Claude Code CX Codex Cursor +1 6,100installs gh-fix-ci official openai skill Finds failing GitHub Actions checks on a pull request, inspects logs, and drafts a fix plan. The skill modifies code only after explicit approval. Claude Code CX Codex Cursor +1 11,400installs ego-browser citrolabs skill Connects the ego-lite Chromium browser to AI agents for web automation, form filling, screenshots, and QA testing using existing logged-in sessions. Claude Code CX Codex Cursor +1 11,900installs dogfood Teknium (teknium1), Hermes Agent skill A skill for exploratory QA of a web app: it walks the pages, captures console errors and screenshots, then writes a bug report. Claude Code CX Codex Cursor +1 6,400installs react-doctor millionco skill Audits React codebases for architecture, accessibility, and rendering issues. Computes a health score from 0 to 100 and helps patch regressions. Claude Code CX Codex Cursor +1 19,000installs orca-emulator stablyai skill Controls booted iOS Simulators inside Orca with a live device view. Handy for running gestures, hardware buttons, accessibility tree checks, and UI verification. Claude Code CX Codex Cursor +1 5,800installs playwright-dev microsoft skill Explains how to develop Playwright: add APIs, MCP tools, CLI commands, and manage vendor dependencies. Claude Code CX Codex Cursor +1 3,700installs orca-emulator-android stablyai skill Lets the agent drive an adb-connected Android emulator or phone from inside Orca: taps, swipes, APK install, logcat. Handy for running a flow on a real device. Claude Code CX Codex Cursor +1 5,600installs accessibility web-quality-skills skill This skill audits a rendered page for accessibility and points to the components behind each failure. Useful when a site has to meet WCAG 2.2 or survive a keyboard and screen reader pass. Claude Code CX Codex Cursor +1 63,900installs chrome-devtools ChromeDevTools skill This skill connects Chrome DevTools through MCP for page debugging, browser automation, performance checks, and network inspection. Claude Code CX Codex Cursor +1 8,600installs test-engineer official Anthropic subagent This subagent captures legacy behavior in tests and compares it with a rewritten implementation. Use it before changing existing modules. Claude Code 9,715installs minimal-run-and-audit lllllllama skill Captures and normalizes execution evidence from deep learning smoke tests and inference commands into standardized repro_outputs/ files. Claude Code CX Codex Cursor +1 474,400installs java-springboot official github skill Gives GitHub Copilot Spring Boot development practices, from project layout to tests and security. Use it when writing or reviewing Java application code. GitHub Copilot 21,272installs bmad-code-review bmad-code-org skill This skill runs several independent reviewers in parallel, then triages their findings. Useful when you want changes checked before a merge. Claude Code CX Codex Cursor +1 12,100installs bmad-agent-dev bmad-code-org skill Activates Amelia, a senior software engineer persona executing stories through red, green, refactor and acceptance criteria. Claude Code CX Codex Cursor +1 11,700installs bmad-qa-generate-e2e-tests bmad-code-org skill This skill adds end-to-end and API tests for working features through the project's existing test harness. Use it for automated QA coverage. Claude Code CX Codex Cursor +1 11,400installs durable-objects cloudflare skill This skill helps build, debug, and review Cloudflare Durable Objects for state, coordination, and persistent connections. Claude Code CX Codex Cursor +1 109,700installs web-perf cloudflare skill Audit Core Web Vitals, diagnose rendering bottlenecks, and inspect network dependencies directly through your agent. Claude Code CX Codex Cursor +1 109,300installs playwright-generate-test official github skill Generates a Playwright test from a scenario through Playwright MCP. Use it when the browser flow should be completed before test code is written. GitHub Copilot 18,162installs chrome-devtools-cli ChromeDevTools skill Lets AI coding agents interact with Chrome DevTools to automate clicks, inspect DOM snapshots, profile performance, and debug heap memory from the terminal. Claude Code CX Codex Cursor +1 6,700installs rust-testing affaan-m skill A skill for writing Rust tests: unit, integration, async, property-based, mocks and coverage. Useful when the project runs on TDD. Claude Code CX Codex Cursor +1 5,500installs frontend-design-direction affaan-m skill Sets a product-specific direction for web UI and helps check hierarchy, content states, responsive behavior, accessibility, and rendered results. Claude Code CX Codex Cursor +1 5,300installs vitest Anthony Fu skill This skill guides work with Vitest tests, mocks, coverage, filtering, and fixtures. Use it when setting up tests or checking how Vitest fits a Vite project. Claude Code CX Codex Cursor +1 43,600installs