Best Testing & QA Skills for Claude Code

Reviews your code for bugs, security vulnerabilities, logic errors, performance issues, and style violations. Organizes findings by severity and suggests fixes with code examples.

Turn your AI agent into a senior engineer with strict task classification and verification-driven coding protocols.

Identify robotic prose and AI-generated patterns with a 0-5 diagnostic score and structured linguistic analysis.

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

Expert Lean Six Sigma guidance, statistical formulas, and operational tools for industrial-grade process improvement.

A risk-aware, evidence-based engineering lifecycle protocol for robust agentic task execution and safety.

agent-workflow-controller

by Roy Yuen

Free

Design and audit complex multi-agent workflows with rigorous ownership, evidence gates, and failure recovery policies.

Eliminate hallucinations and errors using double-blind, multi-agent adversarial verification loops.

chaos-engineering

by Frank Brsrk

Free

Design rigorous chaos engineering experiments and resilience audits to verify production system reliability.

A professional security triage workflow for mapping attack surfaces and prioritizing DeFi smart contract vulnerabilities.

Generate meaningful, maintainable tests that actually protect your code — not just inflate coverage numbers.

Expert guidance for selecting and executing Lean Six Sigma methodologies from DMAIC to DFSS and Hoshin Kanri.

Generate professional, formula-driven DMAIC/DFSS artifacts, Excel tools, and interactive Lean Six Sigma visualizations.

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

Generate realistic JSON or CSV test data from plain-English schema descriptions with up to 1,000 rows.

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

Score, diagnose, and rewrite underperforming AI agent skills to improve triggering and reliability.

Audit, score, and systematically optimize Gemini CLI skills for higher reliability and lower token consumption.

Professional security audit skill for web apps and APIs with structured severity-based findings and remediation plans.

windows-desk-automation

by Roy Yuen

$9

Reliable UIA-based Windows desktop automation with OCR and image matching fallbacks.

Conduct MBB-level operational excellence audits and maturity assessments with calibrated findings and roadmaps.

Transform technical debt into a prioritized roadmap with professional-grade refactoring reports.

Audit your Agensi skill drafts for structural integrity, marketplace appeal, and publication readiness.

A professional CRO and SEO audit workflow to identify conversion leaks and prioritize website fixes.

A 5-gate pre-flight audit to ensure your AI agent has the context, scope, and safety boundaries needed to code successfully.

A Master Black Belt mentor for DMAIC projects, providing phase-by-phase coaching, tollgate prep, and statistical rigor.

Automate data profiling with type detection, statistical analysis, and quality flags saved to a Markdown report.

Generate high-quality Jest unit tests with automatic dependency mocking for JavaScript and Angular applications.

Audit your SKILL.md draft for platform compliance and marketplace appeal before you publish.

Enforce senior-level coding standards with a focus on verification, minimal diffs, and evidence-based bug fixing.

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

Bypass OS-native file upload dialogs in browser automation using JavaScript interception and DataTransfer injection.

Audit your AI agent's evaluation coverage to identify missing release gates and production risks.

Turn weak or inconsistent agent skills into reliable, marketplace-ready assets with structured quality diagnostics.

Professional bilingual audit tool with Monte Carlo sampling and structured fix proposals for high-volume translations.

Audit and refine vulnerability reports to maximize bounty payouts and reduce N/A or duplicate closures.

root-cause-debugger

by Roy Yuen

$6

An evidence-first debugging workflow for agents to identify, reproduce, and surgically fix software defects.

A structured CRO audit workflow that identifies conversion killers and generates prioritized fix lists and AB tests.

Three-pass automated code review that catches error handling gaps, structural issues, and naming problems — then auto-fixes everything before code reaches the user.

Design, debug, and harden AI control loops with explicit contracts and automated verification harnesses.

Turn bounce rates into conversions with prioritized fix lists and high-converting copy variants for any SaaS landing page.

A systematic security audit framework applying OWASP Top 10 and CWE patterns to identify and fix vulnerabilities.

Updated summary for testing

Automated test generation with edge case analysis and framework-native syntax for TS, Python, Go, and Rust.

Upgrade your AI agent with a senior-level engineering SOP focused on inspection, minimal diffs, and hard verification.

Design and scaffold professional integration and contract testing suites with Testcontainers, Pact, and WireMock.

Professional QA & UAT documentation generator for AI automation agencies and complex agent deployments.

customer-service-playbook-planner

by Roy Yuen

$7

Transform chaotic support into structured operations with playbooks, triage rules, and automated QA rubrics.

Turn raw agent traces and tool logs into professional production-readiness audits and remediation reports.

Accelerate your bounty hunting with smart program prioritization and vulnerability report triaging for DeFi protocols.

Professional prompt engineering, audit, and evaluation system for production-grade AI agents and workflows.

slice-guard

by Roy Yuen

$7

Enforce small, verified, and rollback-safe code increments to prevent AI scope creep and broken builds.

Automated 8-point pre-deployment safety audit to catch breaking migrations, missing env vars, and CVEs.

Cuts the back-and-forth in half. 12 rules that stop your AI from rushing, guessing, and making you repeat yourself.