366 free skills · page 5 of 7
Testing skills
Skills for writing and running tests — framework-specific patterns for Jest, Vitest, pytest, Go testing, RSpec, JUnit, Playwright, Cypress, and more.
Real files from public repositories — hand-curated, never invented. Sorted by installs.
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playwright-testingalinaqi/maggyE2E testing with Playwright - Page Objects, cross-browser, CI/CDTesting3.0k
opentuianomalyco/opentuiBuild terminal UIs with OpenTUI. Covers Core, frameworks, components, application APIs, testing, extensions, integrations, deployment, and public API lookup.Testing3.0k
ghost-validateghostsecurity/skillsThis skill should be used when the user asks to "validate a finding", "check if a vulnerability is real", "triage a security finding", "confirm a vulnerability", "determine if a finding is a true positive or false positive", or provides a security finding for review. It validates security vulnerability findings by tracing data flows, verifying exploit conditions, analyzing security controls, and optionally testing attack vectors against a live application.Testing3.0k
kubernetes-pentestingyaklang/hack-skillscontainer-escape-techniques for escaping from a compromised pod to the underlying node; linux-privilege-escalation once on a node for escalating to root; linux-lateral-movement for pivoting between nodesTesting2.9k
unit-test-boundary-conditionsgiuseppe-trisciuoglio/developer-kitProvides edge case, corner case, boundary condition, and limit testing patterns for Java unit tests. Validates minimum/maximum values, null cases, empty collections, numeric overflow/underflow, floating-point precision, and off-by-one scenarios using JUnit 5 and AssertJ. Use when writing .java test files to ensure code handles limits, corner cases, and special inputs correctly.Testing2.9k
councilboshu2/agentopsCollect independent perspectives for an explicitly high-stakes or contested judgment. Triggers: "council", "multi-judge review", "independent perspectives".Testing2.9k
andrej-karpathy-perspectivealchaincyf/karpathy-skill擅长： - AI产品可靠性评估（从demo到部署的差距） - 神经网络训练方法与学习策略 - LLM本质和能力边界的深度分析 - AI行业趋势的工程视角解读 - 开源/教育/极简主义技术哲学Testing2.9k
browser-automationsophieguanongit/openclaw-browser-automation浏览器自动化控制。【优先使用此 skill，不要用内置 browser 工具】当用户说"打开网页"、"点击"、"填写表单"、"截图"、"网页操作"、"自动填表"、"浏览器"时使用。基于 Playwright，支持连接已有 Chrome（CDP 模式）或启动新 Chromium。Testing2.9kios-pentesting-tricksyaklang/hack-skillsmobile-ssl-pinning-bypass for in-depth SSL pinning bypass (SecTrust hooks, SSL Kill Switch, framework-specific techniques); android-pentesting-tricks when also testing the Android version of the same app; api-sec for backend API security testing once traffic is interceptedTesting2.9kfeynman-perspectivealchaincyf/feynman-skill这不是费曼本人。这是基于费曼著作、演讲、访谈、传记和同行评价提炼的思维框架。 它能帮你用费曼的镜片审视问题，但不能替代原创思考。Testing2.9k
book-studysanyuan0704/sanyuan-skillsReading coach: guides users through books systematically with knowledge compilation, mastery testing, spaced repetition, and knowledge querying. Use when user says 'read this book with me', 'book study', 'start studying X', 'reading plan', 'ingest this chapter', 'review what I read', 'quiz me on the book', 'what did the book say about X', or invokes /book-study. Supports sub-commands: ingest, query, review, compare, status. Triggers: book, study, read, chapter, ingest, review, quiz, reading plan, book notes.Testing2.9k
vitestpproenca/dot-skillsVitest testing framework patterns for test setup, async testing, mocking with vi.*, snapshots, and test performance (formerly test-vitest). This skill should be used when writing or debugging Vitest tests. This skill does NOT cover TDD methodology (use test-tdd skill), API mocking with MSW (use test-msw skill), or Jest-specific APIs.Testing2.9k
aspnet-coreopenai/skillsBuild, review, refactor, or architect ASP.NET Core web applications using current official guidance for .NET web development. Use when working on Blazor Web Apps, Razor Pages, MVC, Minimal APIs, controller-based Web APIs, SignalR, gRPC, middleware, dependency injection, configuration, authentication, authorization, testing, performance, deployment, or ASP.NET Core upgrades.Testing2.9knaval-perspectivealchaincyf/naval-skill用「我」而非「Naval 会认为...」; 用 Naval 的语气、节奏、词汇直接回答; 遇到不确定的问题，先拆解定义，再承认不知道Testing2.8k
screenshot-optimizationeronred/aso-skillsWhen the user wants to design, optimize, or evaluate App Store screenshots and preview videos. Also use when the user mentions "screenshots", "app preview", "product page design", "screenshot design", "creative assets", or "what should my screenshots show". For A/B testing screenshots, see ab-test-store-listing. For full ASO audit, see aso-audit.Testing2.8kturborepo-monorepogiuseppe-trisciuoglio/developer-kitProvides comprehensive Turborepo monorepo management guidance for TypeScript/JavaScript projects. Use when creating Turborepo workspaces, configuring turbo.json tasks, setting up Next.js/NestJS apps, managing test pipelines (Vitest/Jest), configuring CI/CD, implementing remote caching, or optimizing build performance in monoreposTesting2.8k
audit-supportanthropics/knowledge-work-pluginsSupport SOX 404 compliance with control testing methodology, sample selection, and documentation standards. Use when generating testing workpapers, selecting audit samples, classifying control deficiencies, or preparing for internal or external audits.Testing2.8k
brainstorm-ideas-newphuryn/pm-skillsBrainstorm feature ideas for a new product in initial discovery from PM, Designer, and Engineer perspectives. Use when starting product discovery for a new product, exploring features for a startup idea, or doing initial ideation.Testing2.8k
playwright-e2e-testingbobmatnyc/claude-mpm-skillsPlaywright modern end-to-end testing framework with cross-browser automation, auto-wait, and built-in test runnerTesting2.8kapp-analyticseronred/aso-skillsWhen the user wants to set up, interpret, or improve their app analytics and tracking. Also use when the user mentions "analytics", "tracking", "metrics", "KPIs", "App Store Connect analytics", "install tracking", "funnel", "attribution", or "how is my app performing". For A/B testing, see ab-test-store-listing. For retention metrics, see retention-optimization.Testing2.8k
ui-testbrowserbase/skillsAI-powered adversarial UI testing via the browse CLI. Analyzes git diffs to test only what changed, or explores the full app to find bugs. Tests functional correctness, accessibility, responsive layout, and UX heuristics. Use when the user asks to test UI changes, QA a pull request, audit accessibility, or run exploratory testing. Supports local browser (localhost) and remote Browserbase (deployed sites).Testing2.7k
testinggrafana/skillsProbe, load-test, and instrument frontends from Grafana Cloud. Covers Synthetic Monitoring (HTTP / DNS / TCP / Ping / Traceroute / Multihttp / k6-browser scripted checks from 20+ global probes, alert on probe_success + TLS-cert expiry), Grafana Cloud k6 (distributed load tests across AWS load-zones, scenarios, http_req_duration thresholds, CI integration via grafana/k6-action), and Frontend Observability with Faro Web SDK (RUM, Core Web Vitals, custom events, pushError, distributed-trace correlation). Use when checking website / API uptime from multiple regions, gating a release on a load test, watching for TLS-cert renewal, instrumenting a React/Vue app, tracking Core Web Vitals, or correlating frontend errors to backend traces — even when the user says "is my login flow up?", "monitor my API", "ping our endpoint every minute", "release-gate load test", "browser performance monitoring", "session replay", or "RUM" without naming Synthetic Monitoring / k6 / Faro.Testing2.7k
vitestonmax/nuxt-skillsUse when writing unit/integration tests for Vite projects - configure vitest.config.ts, write test suites with describe/it, create mock implementations with vi.fn and vi.mock, set up code coverage thresholds, and run tests in parallelTesting2.7kk6-docsgrafana/skillsWrite or review k6 documentation across the three k6 repositories - k6-DefinitelyTyped (TypeScript types), k6-docs (user documentation), and k6 (release notes / changelog). Applies k6 doc style conventions, generates TypeScript type definitions, drafts release notes, and validates examples by running them against k6@master. Use when working on k6 documentation, the k6 changelog, the k6 release notes, k6 API reference, k6 TypeScript types, load testing docs, or when the user asks to write, edit, or review anything in the k6, k6-docs, or k6-DefinitelyTyped repos - even if they don't explicitly say "documentation".Testing2.7kunit-test-service-layergiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing service layer with Mockito. Creates isolated tests that mock repository calls, verify method invocations, test exception scenarios, and stub external API responses. Use when testing service behaviors and business logic without database or external services.Testing2.7kunit-test-wiremock-rest-apigiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing external REST APIs using WireMock. Stubs API responses, verifies request details, simulates failures (timeouts, 4xx/5xx errors), and validates HTTP client behavior without real network calls. Use when testing service integrations with external APIs or mocking HTTP endpoints.Testing2.7kunit-test-controller-layergiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing REST controllers using MockMvc and @WebMvcTest. Generates controller tests that validates request/response mapping, validation, exception handling, and HTTP status codes. Use when testing web layer endpoints in isolation for API endpoint testing, Spring MVC tests, mock HTTP requests, or controller layer unit tests.Testing2.6kunit-test-parameterizedgiuseppe-trisciuoglio/developer-kitProvides parameterized testing patterns with JUnit 5, generates data-driven unit tests using @ParameterizedTest, @ValueSource, @CsvSource, @MethodSource. Creates tests that run the same logic with multiple input values. Use when writing data-driven Java tests, multiple test cases from single method, or boundary value analysis.Testing2.6kunit-test-json-serializationgiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing JSON serialization/deserialization with Jackson and @JsonTest. Validates JSON mapping, custom serializers, date formats, and polymorphic types. Use when testing JSON serialization, validating custom serializers, or writing JSON unit tests in Spring Boot applications.Testing2.6kspring-data-neo4jgiuseppe-trisciuoglio/developer-kitProvides Spring Data Neo4j integration patterns for Spring Boot applications. Use when you need to work with a graph database, Neo4j nodes and relationships, Cypher queries, or Spring Data Neo4j. Creates node entities with @Node annotation, defines relationships with @Relationship, writes Cypher queries using @Query, configures imperative and reactive Neo4j repositories, implements graph traversal patterns, and sets up testing with embedded databases.Testing2.6kunit-test-security-authorizationgiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing Spring Security with @PreAuthorize, @Secured, @RolesAllowed. Validates role-based access control and authorization policies. Use when testing security configurations and access control logic.Testing2.6kunit-test-utility-methodsgiuseppe-trisciuoglio/developer-kitProvides patterns for testing utility classes, static methods, and helper functions. Validates pure functions, null handling, edge cases, and boundary conditions. Generates AssertJ assertions and @ParameterizedTest for string utils, math utils, validators, and collection helpers. Use when testing utils, test helpers, helper functions, static methods, or verifying utility code correctness.Testing2.6kunit-test-scheduled-asyncgiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing Spring @Scheduled and @Async methods using JUnit 5, CompletableFuture, Awaitility, and Mockito. Covers mocking task execution and timing, verifying execution counts, testing cron expressions, validating retry behavior, and simulating thread pool behavior. Use when testing background tasks, cron jobs, periodic execution, scheduled tasks, or thread pool behavior.Testing2.6kunit-test-exception-handlergiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing @ExceptionHandler and @ControllerAdvice in Spring Boot applications. Validates error response formatting, mocks exceptions, verifies HTTP status codes, tests field-level validation errors, and asserts custom error payloads. Use when writing Spring exception handler tests, REST API error tests, or mocking controller advice.Testing2.6k
developing-datacloud-code-extensionforcedotcom/sf-skillsDevelop and deploy Data Cloud Code Extensions using SF CLI plugin. Use this skill when creating custom Python transformations for Data Cloud, deploying code extensions, or testing data transformations. Supports init, run, scan, and deploy operations.Testing2.6kunit-test-mapper-convertergiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing mappers, converters, and bean mappings. Validates entity-to-DTO and model transformation logic in isolation. Generates executable mapping tests with MapStruct and custom converter test coverage. Use when writing mapping tests, converter tests, entity mapping tests, or ensuring correct data transformation between DTOs and domain objects.Testing2.6kunit-test-cachinggiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing Spring Cache annotations (@Cacheable, @CachePut, @CacheEvict). Generates test code that mocks cache managers, verifies cache hit/miss behavior, tests cache key generation with SpEL expressions, validates eviction strategies, and checks conditional caching scenarios. Triggers: caching tests, test Spring cache, mock cache, Spring Boot caching, cache hit/miss verification, @Cacheable testing.Testing2.6kunit-test-config-propertiesgiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing @ConfigurationProperties classes with @ConfigurationPropertiesTest. Validates property binding, tests validation constraints, verifies default values, checks type conversions, and mocks property sources for Spring Boot configuration properties. Use when testing application configuration binding, validating YAML or application.properties files, verifying environment-specific settings, or testing nested property structures.Testing2.6kunit-test-application-eventsgiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing Spring application events. Validates event publishing with ApplicationEventPublisher, tests @EventListener annotation behavior, and verifies async event handling. Use when writing tests for event listeners, mocking application events, or verifying events were published in your Spring Boot services.Testing2.6klangchain4j-testing-strategiesgiuseppe-trisciuoglio/developer-kitProvides unit test, integration test, and mock AI patterns for LangChain4j applications. Creates mock LLM responses, tests retrieval chains, validates RAG workflows, and implements Testcontainers-based integration tests for Java AI services. Use when unit testing AI services, integration testing LangChain4j components, mocking AI models, or testing LLM-based Java applications.Testing2.6k
vectorbt-expertmarketcalls/vectorbt-backtesting-skillsVectorBT backtesting expert. Use when user asks to backtest strategies, create entry/exit signals, analyze portfolio performance, optimize parameters, fetch historical data, use VectorBT/vectorbt, compare strategies, position sizing, equity curves, drawdown charts, or trade analysis. Also triggers for openalgo.ta helpers (exrem, crossover, crossunder, flip, donchian, supertrend).Testing2.6kaws-sdk-java-v2-coregiuseppe-trisciuoglio/developer-kitProvides AWS SDK for Java 2.x client configuration, credential resolution, HTTP client tuning, timeout, retry, and testing patterns. Use when creating or hardening AWS service clients, wiring Spring Boot beans, debugging auth or region issues, or choosing sync vs async SDK usage.Testing2.6k
chrome-devtools-axikunchenguid/chrome-devtools-axiControl a Chrome browser session through the chrome-devtools-axi CLI - navigate, snapshot, click, fill forms, run JavaScript, inspect console and network, take screenshots, audit performance. Use whenever a task needs a real browser: opening or testing a web page, clicking through a flow, extracting page content, or debugging a website.Testing2.5k
carplaydpearson2699/swift-ios-skillsBuild CarPlay-enabled apps using the CarPlay framework. Use when creating navigation, audio, communication, EV charging, parking, or food ordering apps for the car display, working with CPTemplateApplicationScene, CPInterfaceController template hierarchies, CPListTemplate, CPMapTemplate, CPNowPlayingTemplate, configuring CarPlay entitlements, or integrating with CarPlay Simulator for testing.Testing2.5kbrainstorm-ideas-existingphuryn/pm-skillsBrainstorm product ideas for an existing product using multi-perspective ideation from PM, Designer, and Engineer viewpoints. Use when generating new feature ideas, brainstorming solutions for an identified opportunity, or ideating with a product trio.Testing2.5kappmigrationkitdpearson2699/swift-ios-skillsTransfer app data to or from other platforms using AppMigrationKit. Use when implementing system-orchestrated one-time migration between iOS and Android or another platform, building an AppMigrationExtension, packaging transportable resources with ResourcesArchiver, importing resources on the destination device, reporting import progress, handling migration errors and app group cleanup, checking MigrationStatus, or testing migration code with AppMigrationTester.Testing2.5knestjs-drizzle-crud-generatorgiuseppe-trisciuoglio/developer-kitGenerates complete CRUD modules for NestJS applications with Drizzle ORM. Use when building server-side features in NestJS that require database operations, including creating new entities with full CRUD endpoints, services with Drizzle queries, Zod-validated DTOs, and unit tests. Triggered by requests like "generate a user module", "create a product CRUD", "add a new entity with endpoints", or when setting up database-backed features in NestJS.Testing2.5kcapacity-plananthropics/knowledge-work-pluginsPlan resource capacity — workload analysis and utilization forecasting. Use when heading into quarterly planning, the team feels overallocated and you need the numbers, deciding whether to hire or deprioritize, or stress-testing whether upcoming projects fit the people you have.Testing2.5k
nestjs-expertsickn33/agentic-awesome-skillsYou are an expert in Nest.js with deep knowledge of enterprise-grade Node.js application architecture, dependency injection patterns, decorators, middleware, guards, interceptors, pipes, testing strategies, database integration, and authentication systems.Testing2.5k
vitestsupabase/supabaseVitest is a next-generation testing framework powered by Vite. It provides a Jest-compatible API with native ESM, TypeScript, and JSX support out of the box. Vitest shares the same config, transformers, resolvers, and plugins with your Vite app.Testing2.4klean-canvasphuryn/pm-skillsGenerate a Lean Canvas with problem, solution, metrics, cost structure, UVP, unfair advantage, channels, segments, and revenue. Use when exploring a lean startup canvas, testing a business hypothesis, or modeling a new venture.Testing2.4k
backtest-experttradermonty/claude-trading-skillsExpert guidance for systematic backtesting of trading strategies. Use when developing, testing, stress-testing, or validating quantitative trading strategies. Covers "beating ideas to death" methodology, parameter robustness testing, slippage modeling, bias prevention, and interpreting backtest results. Applicable when user asks about backtesting, strategy validation, robustness testing, avoiding overfitting, or systematic trading development.Testing2.4ktest-tuiopenai/codexGuide for testing Codex TUI interactivelyTesting2.4k
grill-mejuliusbrussee/skillsCalibrated grilling session for stress-testing a plan, design, idea, or decision. First assesses the user's topic knowledge, confidence, and desired pressure level, then asks one question at a time with recommended answers. Use when user says "grill me", "stress-test this", "challenge my plan", "interview me", or wants a plan probed without being overwhelmed.Testing2.3kbrainstorm-experiments-newphuryn/pm-skillsDesign lean startup experiments (pretotypes) for a new product. Creates XYZ hypotheses and suggests low-effort validation methods like landing pages, explainer videos, and pre-orders. Use when validating a new product idea, creating pretotypes, or testing market demand.Testing2.3ksox-testinganthropics/knowledge-work-pluginsGenerate SOX sample selections, testing workpapers, and control assessments. Use when planning quarterly or annual SOX 404 testing, pulling a sample for a control (revenue, P2P, ITGC, close), building a testing workpaper template, or evaluating and classifying a control deficiency.Testing2.3k
engineering-skillsalirezarezvani/claude-skillsIndex of the engineering-team skills bundle for Claude Code, Codex, Gemini CLI, Cursor, OpenClaw, and 6 more tools. Architecture, frontend, backend, QA, DevOps, security, AI/ML, data engineering, Playwright, Stripe, AWS, MS365 (stdlib-only Python tools). Use when browsing or choosing among engineering-team role skills — load only the one specialist SKILL.md you need, never bulk-load the bundle.Testing2.3k
access-protected-vercel-deploymentvercel/vercel-pluginAccess and test Vercel deployments protected by Vercel Authentication, SSO, or Deployment Protection. Use when curl, agent-browser, Playwright, or another automated request reaches a Vercel login or protection page; when a protected preview or production URL returns 401 or 403; when TRUSTED_SOURCES_ENVIRONMENT_MISMATCH appears; or when choosing between vercel curl and the x-vercel-trusted-oidc-idp-token header.Testing2.3k
a11y-debuggingchromedevtools/chrome-devtools-mcpUses Chrome DevTools MCP for accessibility (a11y) debugging and auditing based on web.dev guidelines. Use when testing semantic HTML, ARIA labels, focus states, keyboard navigation, tap targets, and color contrast.Testing2.3kidentify-assumptions-existingphuryn/pm-skillsIdentify risky assumptions for a feature idea in an existing product across Value, Usability, Viability, and Feasibility. Uses multi-perspective devil's advocate thinking. Use when stress-testing a feature idea, doing risk assessment, or preparing for assumption mapping.Testing2.3kOther tasks
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