Best Testing & QA Skills for Claude Code

A systematic 4-phase debugging framework to find root causes, eliminate flaky tests, and prevent regressions.

Turn OpenAPI specs into exhaustive, framework-ready test suites covering happy paths, edge cases, and security gaps.

Systematic runtime bug detection and automated patching for Firebase, Next.js, and Vercel stacks.

High-precision test gap analysis that prioritizes untested code by risk and identifies missing edge cases.

Automated risk classification and regression checking to stop AI agents from breaking your codebase.

robot to playwright converter

by Matthew King

Free

Most 'migrations' rewrite your tests from scratch. This one maps your existing keywords and locators automatically.

A rigorous 5-phase debugging framework to systematically reproduce, isolate, and resolve complex software bugs.

Windows Desktop Automation Architect for AI Coding Agents

by Shandra

$9.99

Designs robust Windows desktop automation workflows using pywinauto, UI Automation, hotkeys, image matching, OCR, retries, logging, screenshots, and safety controls.

The ultimate pre-commit checklist agent for cleaning code, updating docs, and validating repository state.

Automated 8-point release audit for project templates, ZIP packages, and developer starter kits.

Select the smallest honest verification set for a change, including targeted tests, manual checks, missing-test recommendations, a broader fallback, and named remaining risk.

software risk analysis

by Matthew King

$5

Deep repository inspection to generate a pragmatic quality risk strategy and interactive HTML dashboard.

Bug Reproduction Kit Builder for AI Coding Agents

by Shandra

$9.99

Turn vague bug reports into structured reproduction kits, diagnostic plans, and precise AI coding prompts.

tdd coach

by Matthew King

Free

Most 'TDD' skips the failing test. This mentor enforces Red before Green, even on legacy code.

Clean Code and Architecture

by Christopher Zenzel

$5

Apply Clean Code and Clean Architecture standards to automate refactoring, reviews, and dependency management.

rf seleniumlib to browser lib

by Matthew King

Free

SeleniumLibrary is the flakiest part of your Robot Framework suite. This skill swaps it for Browser library, structure intact

carnegie quality strategy

by Matthew King

Free

Most quality strategies are generic templates nobody follows. This one is built from your actual repo

Paste your Python code and get a plain-English test report — what works, what doesn't, what's unfinished, and exactly what to do next.

🚀 Launch Readiness Checklist Generator

by JustHandled Labs

$9

Generate a personalized before-you-ship checklist for your app, with the things you already have checked off. Pick your app type (web app, SaaS, store, or content) and it builds a tailored list covering security, legal basics (privacy policy, terms, cookie consent), social preview, payments and refunds, accessibility, analytics, and backups, then scans your repo and pre-checks what is already there. Every item says why it matters in plain English.

Accessibility Scanner

by Martin Gunderman

$7

Automatically detect accessibility issues in websites and applications following WCAG and accessibility standards.

Developers waste time re-explaining their project to AI agents every session.

🗺️ Change Impact Mapper

by JustHandled Labs

$13

Map the blast radius of a code change before you run the whole suite. For the files and functions you changed, it lists what imports or calls them, which tests cover them, flags any change with no covering test, and warns when a file has a lot of dependents. It tells an agent what its edit might break instead of making it guess. Resolves Python and JavaScript/TypeScript.

Windows Automation Pre Flight Check

by SkillForge

Free

Prevent flaky Windows automation by enforcing robust UI identity, conditional waits, and safety guards.

✅ AI Code Verification Gate

by JustHandled Labs

$19

One-line summary description Stop your agent from claiming "done" before it's proven. A verification gate that classifies each change by risk (payment, auth, database, user-facing), picks the tests that actually cover it, demands evidence, maps regression risk, and outputs an honest pass/fail report. Turns "looks good to me" into "here's what I ran, and here's what's still unverified."

⚡ Perf Budget Auditor

by JustHandled Labs

$12

Audit your frontend build against a performance budget and catch size regressions before you ship. Flags total bundle over budget, initial bundle over budget, individual chunks over a threshold, oversized image assets, source maps shipped to production, and large unminified JavaScript. Reads a webpack or Vite-style stats.json plus a perf-budget.json you control.

Systematic Bug Debugger

by Arnstein Larsen

Free

Stop guessing and start solving with hypothesis-driven debugging for complex, intermittent, and production-only bugs.

WordPress Launch QA Gate

by Arnstein Larsen

$29.99

Turns Claude into a senior WordPress launch reviewer that audits a site, theme, or plugin against the entire pre-launch standard across 7 weighted domains and returns one objective go/no-go decision with a scored blocker list.

Automatically triage test failures, detect cascading root causes, and get prioritized fix suggestions across 10+ languages.

Unit & Integration Test Generator

by PubsProToolkit

$12

Generate a real test suite for any function, module, or file — meaningful edge cases, error paths, boundary conditions, and proper mocks, not happy-path stubs. Detects your project's framework and conventions, plans the cases deliberately before writing, and hands back runnable tests plus a summary of what's covered. Built to write the tests that actually catch bugs.

pytest test architect

by Tommi Sullivan

$9

Generate professional pytest suites using behavior-driven matrices, AAA patterns, and resilient fixture architecture.

agent skill regression tester

by Timoranjes

Free

Teaches AI coding agents to build and run automated regression tests for SKILL.md files. When you update a skill that your team depends on, you need to know it still works — not just that it "looks ri

Stop guessing and start proving: Force your AI agent to provide verifiable execution logs for every 'done' claim.

Code Quality Gate

by Echo Rose

$5

Code Quality Gate - A Premium AI Agent Skill

Api Uptime Tracker

by Echo Rose

$5

Api Uptime Tracker - A Premium AI Agent Skill

Contract Test

by Echo Rose

$5

Contract Test - A Premium AI Agent Skill