lobster debugging
Free
A systematic 4-phase debugging framework to find root causes, eliminate flaky tests, and prevent regressions.
3
24
Best Testing & QA Skills for Claude Code
Skills for writing unit tests, integration tests, and end-to-end tests. Improve coverage, catch regressions, and automate QA.
📖 Related guide: Best Testing & QA Skills for Claude Code →
133 skills
Prompt Dataset Builder
$5
Build and curate high-quality prompt datasets for fine-tuning and eval — deduped and labeled.
10
160
prod bug hunter
Free
Systematic runtime bug detection and automated patching for Firebase, Next.js, and Vercel stacks.
3
10
api contract tester
$5
Turn OpenAPI specs into exhaustive, framework-ready test suites covering happy paths, edge cases, and security gaps.
3
2
bypass macos file dialog
$5
Bypass OS-native file upload dialogs in browser automation using JavaScript interception and DataTransfer injection.
2
0
test gen
$12
Automated test generation with edge case analysis and framework-native syntax for TS, Python, Go, and Rust.
2
0
rf seleniumlib to browser lib
Free
SeleniumLibrary is the flakiest part of your Robot Framework suite. This skill swaps it for Browser library, structure intact
2
55.0(1)
robot to playwright converter
Free
Most 'migrations' rewrite your tests from scratch. This one maps your existing keywords and locators automatically.
2
3
Flaky Test Detective for AI Coding Agents
$9.99/mo
Diagnoses unreliable tests, identifies root causes, creates stabilization plans, and generates safe AI coding prompts for fixing flaky unit, integration, E2E, and CI tests.
4
0
A11Y Audit Runner
Free
Scored WCAG 2.2 accessibility audits with prioritized, copy-paste fix snippets for any webpage.
10
0
data faker
$12
Generate realistic JSON or CSV test data from plain-English schema descriptions with up to 1,000 rows.
2
0
test coverage auditor
Free
High-precision test gap analysis that prioritizes untested code by risk and identifies missing edge cases.
2
6
agent regression guard
$5
Automated risk classification and regression checking to stop AI agents from breaking your codebase.
2
0
Windows Desktop Automation Architect for AI Coding Agents
$9.99
Designs robust Windows desktop automation workflows using pywinauto, UI Automation, hotkeys, image matching, OCR, retries, logging, screenshots, and safety controls.
2
0
Effective Debugging with Grok (v1.5)
Free
A rigorous 5-phase debugging framework to systematically reproduce, isolate, and resolve complex software bugs.
2
2
playwright human bypass pattern
$20
Bypass Cloudflare WAF, reCAPTCHA v3, and Vue.js bot detection in one skill.
3
0
regex builder
$12
Convert plain English into tested regex patterns and explain existing ones across multiple language flavors.
2
0
finalize
$5
The ultimate pre-commit checklist agent for cleaning code, updating docs, and validating repository state.
2
0
Test Target Selector with Codex
Free
Select the smallest honest verification set for a change, including targeted tests, manual checks, missing-test recommendations, a broader fallback, and named remaining risk.
2
3
root cause debugger
$6
An evidence-first debugging workflow for agents to identify, reproduce, and surgically fix software defects.
2
0
Accessibility Bug Hunter for AI Coding Agents
$9.99
Finds accessibility problems in UI code and turns them into prioritized fixes, WCAG-aware checklists, test plans, remediation tickets, and safe AI coding prompts.
2
0
tdd coach
Free
Most 'TDD' skips the failing test. This mentor enforces Red before Green, even on legacy code.
2
3
Bug Reproduction Kit Builder for AI Coding Agents
$9.99
Turn vague bug reports into structured reproduction kits, diagnostic plans, and precise AI coding prompts.
2
0
🧪 Webapp Tester
$15
Run real Playwright E2E tests on your web app: login, checkout, and form flows across desktop and mobile viewports, with screenshots, traces, and console logs captured on every failure. Catches broken flows and UI regressions before release, and tells you the likely fix, not just that something broke.
2
0
slice guard
$7
Enforce small, verified, and rollback-safe code increments to prevent AI scope creep and broken builds.
2
0
windows desk automation
$9
Reliable UIA-based Windows desktop automation with OCR and image matching fallbacks.
2
0
Jest Test Generator (Angular & JS)
$8
Generate high-quality Jest unit tests with automatic dependency mocking for JavaScript and Angular applications.
2
0
template qa pack
$29
Automated 8-point release audit for project templates, ZIP packages, and developer starter kits.
2
0
software risk analysis
$5
Deep repository inspection to generate a pragmatic quality risk strategy and interactive HTML dashboard.
2
0
flaky test detector
$0
Detect, diagnose, and fix intermittent test failures to stabilize your CI pipeline and restore developer trust.
2
0
Clean Code and Architecture
$5
Apply Clean Code and Clean Architecture standards to automate refactoring, reviews, and dependency management.
3
0
🚀 Launch Readiness Checklist Generator
$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.
2
0
Accessibility Scanner
$7
Automatically detect accessibility issues in websites and applications following WCAG and accessibility standards.
1
1
🗺️ Change Impact Mapper
$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.
1
0
quality engineer
$5/mo
A risk-first QA agent that hunts bugs via personas, extracts BDD requirements, and drives TDD fixes.
2
0
✅ AI Code Verification Gate
$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."
1
0
🧪 Test Quality Auditor
$15
Find the unit tests that pass without testing anything. Flags tests with no assertions, trivial existence-only checks (toBeDefined, assertIsNotNone), tests that assert the exact value they just mocked, snapshot-only tests, tautological assertions (expect(true).toBe(true)), empty placeholders, and over-mocked tests with more setup than assertions. Works on Jest/Vitest and pytest/unittest.
1
0
♿ a11y Regression Test Generator
$15
Generate runnable accessibility regression tests, not just a findings report. Detects a11y issues, missing alt text, unlabeled controls, keyboard and focus gaps, in your routes, components, or HTML, then emits Playwright + axe-core spec files with targeted assertions and remediation tickets for each. Previews the tests first and writes them only on your confirmation.
1
0
🛡️OpenAPI Contract Guard
$12
Lint an OpenAPI spec and diff two versions to catch breaking API changes before they reach consumers. Within a spec it flags missing operationId, success responses with no schema, untyped parameters, operations with no security requirement, and unbounded arrays/strings. Across two versions it flags removed paths and operations, removed response codes, a parameter becoming required, narrowed parameter types, removed enum values, and removed response fields. Analyzes JSON specs (convert YAML to JSON first).
1
0
playwright pro
$5
Architect, scaffold, and audit enterprise-grade Playwright test suites with professional CI and auth patterns.
1
0
⚡ Perf Budget Auditor
$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.
1
0
WordPress Launch QA Gate
$29.99
Produces a scored go/no-go pre-launch audit for a WordPress site across code quality, security, accessibility, and SEO. Use when the user says "is this WordPress site ready to launch", "run a pre-launch QA check", "go/no-go audit for my site", "re-audit after fixes", or "launch readiness scorecard". Do not use when only one domain needs auditing — use that domain-specific WP audit skill instead.
1
0
🌐 Localization QA Auditor
$15
Run structural QA on your translation files across locales. Flags missing keys, placeholder mismatches ({name}, %s, {{var}}), strings left untranslated and identical to the source, length-overflow risk that breaks UI, terminology drift against a glossary, empty targets, and plural-category gaps. Works on JSON, gettext .po/.pot, and .properties. It checks form, not meaning, so you do not need to speak the target language to use it.
1
0
test flake hunter
$7
Detect and analyze flaky tests across multiple frameworks with automated repeated execution and severity reporting.
2
0
Verification Before Done
$8.99
Produces a verification plan that proves a code change actually works — observable "working" definitions, evidence-over-inference checks, evidence trail. Use when the user says "verify this works", "is it actually done", "prove the fix works", "did the fix actually work", or "definition of done for this change". Do not use before the change is written — use structured-impl-planner instead.
1
0
5why root cause analysis
$9
Systematic root cause analysis skill to find and fix the source of bugs, not just the symptoms.
1
0
API Contract Tester
$5
Produces an exhaustive test suite (happy-path, edge-case, negative, contract, security tests) and coverage matrix from an OpenAPI spec, or audits an existing suite for gaps. Use when the user says "generate tests from my OpenAPI spec", "test my API contract", "find gaps in my test suite", or "check contract conformance". Do not use when the user wants the API contract designed, not tested.
1
0
Build Outcome Verifier
$7.99
Physically installs and launches your APK before the agent declares the build done. Catches broken artifacts every time.
2
0
pytest test architect
$9
Generate professional pytest suites using behavior-driven matrices, AAA patterns, and resilient fixture architecture.
2
0
AI Automation QA & UAT Pack
$5
Produces a QA/UAT pack (acceptance criteria, UAT scripts, edge-case matrix, regression checklist) for an AI automation, or audits an existing one's test coverage. Use when the user says "write UAT for this automation", "QA this AI workflow", "find test coverage gaps", or "build a regression checklist". Do not use when the deliverable is the agent itself, not its test coverage.
1
0
Playwright E2E Test Generator
$0
Teaches AI coding agents to generate production-quality Playwright end-to-end tests from page analysis, user stories, or existing code. Covers selector strategy, test structure patterns, flakiness prevention, and CI integration — for QA engineers and solo devs tired of AI-generated tests that break on first run.
1
0
Ironclad — Senior Software Developer
$9.99
Makes your coding agent work like a senior developer: exact money, configurable rules, real audit trails, honest testing. Any stack, any country.
2
1
OptiTech QA (skill 1 of 6)
$20
⚠️ Attention. This is 1 of 6 skills that cover the entire product build lifecycle. Feel free to download other OptiTech skills to build your production-ready products.
2
1
Test Suite Generator — Risk First Unit Tests (Jest, Vitest, Pytest, JUnit, Go)
$12
Turns a function, module, or class into a risk-prioritized unit test suite: a test plan, edge cases, idiomatic test code, coverage gaps, and the commands to run it.
2
0
AI Software Engineering / Coding Production Agent
$9.99
Transforms software requirements into planned, implemented, tested, reviewed, and production-ready engineering changes.
2
0
Model Evaluation Report Builder
$9.99
Turns model test results, prompts, outputs, benchmarks, scoring notes, evaluation datasets, failure examples, comparison results, and reviewer observations into clear model evaluation reports with findings, recommendations, evidence gaps, deployment considerations, and repeatable evaluation documentation for AI teams.
1
0
AI Generated Code Verification Agent
$7.99
Audit AI-generated code for hallucinations, security flaws, and architectural drift before you merge.
1
0
GitHub Issue to Pull Request Agent
$7.99
Converts GitHub issues into repository-aware implementation plans, code changes, tests, and review-ready pull requests.
1
0
Flaky Test Root Cause Analyzer
$19.99
Diagnose nondeterministic test failures and race conditions with a structured 25-step technical audit.
1
0
Customer Support Resolution Agent
$19.99
Standardizes end-to-end customer support workflows from intent identification to verified resolution.
1
0
React / Next.js Production Audit — SHIP / FIX FIRST / BLOCK Score
$15
Checks whether a React or Next.js site is ready to launch — scores 8 areas, lists what to fix first, and gives a clear SHIP, FIX-FIRST, or BLOCK decision.
1
0
CLI Tool QA — Systematic Testing
$9.99
Systematic QA of CLI tools with structured evidence and verdicts.
1
0
API Contract Drift Detector
$14.99
Detects mismatches between API specifications, code implementations, and client expectations to prevent breaking changes.
1
0
Playwright Test Failure Debugger
$9.99
Diagnose flaky, timed-out, or CI-only Playwright test failures using traces and logs.
1
0
Systematic Bug Diagnosis — Root Cause, Not Guesswork
$12
Finds why an app bug is happening using a step-by-step method (reproduce, isolate, test ideas, 5 Whys), then gives a small correct fix and a regression test — without guessing first.
1
0
reliable test id generator
$5
Automates the generation and registry of stable, unique test IDs for UI components and testing suites.
1
0
Cart Merge Contract Repair
$6.99
Repair guest-to-account cart merge bugs including duplicate lines, stale prices, coupon leakage, replay races, and checkout state drift.
1
0
whole codebase refactor manager
$5
Orchestrate and verify large-scale, cross-module codebase refactors with automated planning and testing.
1
0
AI Coding / Developer Production Agent
$9.99
Takes software work from coding and debugging through testing, release readiness, deployment verification, and production recovery.
1
0
Ai Code Verification
$10
An evidence-based, checklist-driven workflow for auditing and verifying AI-generated code before deployment.
1
0
Repair Money Rounding Bugs
$8.99
Repair rounding, floating-point, tax, discount, and total mismatches across existing apps.
1
0
Annotation Guideline Gap Reviewer
$6.99
Review annotation guidelines in files the user supplies or is authorized to share.
1
0
Make Scenario Blueprint Builder
$9.99
Designs Make.com scenario blueprints, module sequences, trigger logic, routers, filters, data mappings, transformations, webhooks, error handlers, retries, fallback paths, testing notes, documentation templates, and build-ready automation briefs for agencies, no-code builders, operations teams, founders, consultants, and small businesses planning reliable workflows before building.
1
0
software qa bug finder
$5
A six-phase independent QA auditor that finds hidden bugs in green test suites and production code.
1
0
ci failure triage
$5
Cluster and rank CI test failures by root cause to find the one bug breaking your entire build.
1
0
Workflow SOP Generator
$9.99
Turns repeated business tasks, team processes, client delivery steps, admin routines, content workflows, sales operations, onboarding actions, support tasks, and internal procedures into clear standard operating procedures with step-by-step instructions, checklists, role responsibilities, screenshot placeholders, QA checks, escalation notes, review cycles, and team-ready documentation.
1
0
Feature Flag Lifecycle Repair
$6.99
Repair feature-flag lifecycle drift in a repository using Cursor.
1
0
Add Endtoend Tests Automatically
$8.99
Automatically add reliable end-to-end tests to existing applications.
1
0
GraphQL Nullability Contract Repair
$6.99
Repair GraphQL nullability drift across schemas, resolvers, loaders, ORM models, generated types, clients, caches, tests, and docs.
1
0
AI Coding Prompt Refinement Pro
$19.99
Transform vague coding requests into production-ready AI coding prompts with context, constraints, architecture, tests, acceptance criteria, and verification gates.
1
0
Stealth Web Scraper
$5
Scrape pages that block plain requests: impersonate real browsers with curl_cffi, keep a session cookie jar, rotate to Playwright when JavaScript rendering or a
1
0
ai system prompt and workflow architect
$5
Architect production-ready system prompts, evidence policies, and failure-handling logic for AI agents.
1
0
AI Bug Root Cause Investigator
$9
Trace bugs from symptoms to evidence-backed root causes, affected code paths, fixes, and regression tests.
1
0
DSP Plugin Test & Verification — Honest THD/CPU Benchmarking
$7
Verify and benchmark DSP audio plugins by identifying harness bugs, measuring real THD, and auditing CPU load.
1
0
Repair Timeout Budget Drift
$8.99
Align end-to-end request deadlines, retries, cancellation, database work, and side-effect ownership so server work stops when its budget is gone.
1
0
AI Agent Output Verification Gate™
$9
Verify AI-generated code against task requirements, evidence, tests, and merge-readiness criteria.
1
0
ai skill performance quality auditor
$5
Audit AI agent behavior against definitions using evidence-based scorecards and failure diagnosis.
1
0
AI Feature Impact Analyzer™
$19.99
Map every code, API, database, test, and dependency affected by a feature change before implementation.
1
0
Repair Cancellation Propagation
$8.99
Repair lost cancellation signals, orphaned async work, retry-after-cancel bugs, stale completions, and unclear request-vs-durable task lifetimes.
1
0
ai system prompt architect
$5
Architect production-ready AI systems with deployable prompts, evidence policies, schemas, and test suites.
1
0
Python Test Generator — Plain English Test Results for Your Python Code
Free
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.
2
2
carnegie quality strategy
Free
Most quality strategies are generic templates nobody follows. This one is built from your actual repo
2
1
testing with sandbox
Free
Safely capture and inspect test emails in a staging environment without sending to real recipients.
3
0
Local first memory for AI coding agents (PMB)
Free
Developers waste time re-explaining their project to AI agents every session.
2
3
TDD Loop Master
Free
Produces a strict red-green-refactor TDD workflow — test list, forcing tests, minimal-code-to-pass guidance, edge-case catalogue — for a feature under test. Use when the user says "help me do TDD", "write tests first for this", "what tests should I write", "improve test coverage", or "red green refactor this function". Do not use once code exists and a bug needs finding — use systematic-bug-debugger instead.
1
2
test failure analyzer
Free
Automatically triage test failures, detect cascading root causes, and get prioritized fix suggestions across 10+ languages.
1
3
Toutour — Verified Onboarding Tours for Any Website
Free
Analyzes your site's layout and UI, interviews you about preferences, then generates AND Playwright-verifies a spotlight onboarding tour — accessible, i18n-ready, colorblind-safe, MIT.
3
3
Windows Automation Pre Flight Check
Free
Prevent flaky Windows automation by enforcing robust UI identity, conditional waits, and safety guards.
2
1
Systematic Bug Debugger
Free
Produces a hypothesis-driven debugging plan — reproduction steps, symptom-to-layer mapping, ranked hypotheses, minimal failing case — for a reported bug. Use when the user says "debug this", "find the bug", "why is this failing", "reproduce this intermittent bug", or "root cause analysis for this stack trace". Do not use before code exists, when tests come first — use tdd-loop-master instead.
1
1
agent skill regression tester
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
2
3
api contract tester v2
Free
Auto-generate API contract tests from OpenAPI/GraphQL. Detect drift, breaking changes. Mock server + multi-language client gen.
2
0
Unit & Integration Test Generator
Free
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.
1
1
performance testing k6 pro
Free
Professional performance test planning and k6 script automation aligned with ISTQB standards.
1
0
accessibility auditor v2
Free
Pre-launch accessibility audit. WCAG 2.2 AA/AAA, ADA/EAA, 70+ checks, axe-core. VPAT/ACR report for procurement.
1
1
Root Cause Analysis Assistant
Free
Turn an error, stack trace, and logs into a structured root-cause diagnosis — reconstructed failure, ranked hypotheses with evidence, the most likely cause, and the cheapest next diagnostic or fix. The disciplined pass a senior engineer runs, instead of scattershot guess-and-check.
1
0
Generate E2E tests from a described user flow
Free
Convert a plain-English user flow plus a route/component map into a runnable Playwright, Cypress, or Detox test file wit
1
1
verify before shipping
Free
Stop guessing and start proving: Force your AI agent to provide verifiable execution logs for every 'done' claim.
0
2
performance testing gatling pro
Free
Architect and scaffold ISTQB-aligned Gatling performance tests, workload models, and strategic test plans.
1
0
Code Regression Risk Analyzer
Free
Analyze code changes to map dependency blast radius, identify breaking contract changes, and score deployment risk.
2
1
performance testing locust pro
Free
Architect ISTQB-aligned performance test plans and production-ready Locust automation suites.
1
0