3 535 testing skills from 425 authors. They run test suites, check accessibility and catch what broke. Half of them fit into 1 800 tokens or less — that is what one costs your context window when the agent loads it. 404 ship runnable scripts rather than instructions alone. 2 of them cannot work without an MCP server, most often rube. We also found 403 copies of these same skills sitting in other people's repositories — counted once here, not 403 times.
3 535 unique 425 authors 2 157 updated this month 319 from vendors
| Run a structured 5-day process to prototype, test, and validate product ideas with real users. Use when the user mentions "design sprint", "validate in a week", "rapid prototype", "test with users", or "de-risk before building". Covers mapping, sketching, deciding, prototyping, and testing. For ongoing experimentation, see lean-startup. For customer job analysis, see jobs-to-be-done. Trigger with 'design', 'sprint'.
Automatically detect performance regressions in CI/CD pipelines by comparing metrics against baselines. Use when validating builds or analyzing performance trends. Trigger with phrases like "detect performance regression", "compare performance metrics", or "analyze performance degradation".
| Create a minimal working Documenso example. Use when starting a new Documenso integration, testing your setup, or learning basic document signing patterns. Trigger with phrases like "documenso hello world", "documenso example", "documenso quick start", "simple documenso code", "first document".
| Set up local development environment and testing workflow for Documenso. Use when configuring dev environment, setting up test workflows, or establishing rapid iteration patterns with Documenso. Trigger with phrases like "documenso local dev", "documenso development", "test documenso locally", "documenso dev environment".
| This skill enables Claude to generate end-to-end (E2E) tests for web applications. It leverages Playwright, Cypress, or Selenium to automate browser interactions and validate user workflows. Use this skill when the user requests to "create E2E tests", "generate end-to-end tests", or asks for help with "browser-based testing". The skill is particularly useful for testing user registration, login flows, shopping cart functionality, and other multi-step processes within a web application. It supports cross-browser testing and can be used to verify the responsiveness of web applications on different devices.
| Configure CI/CD pipelines for ElevenLabs with mocked unit tests and gated integration tests. Use when setting up GitHub Actions for TTS projects, configuring CI test strategies, or automating ElevenLabs integration validation. "elevenlabs automated tests", "CI elevenlabs", "elevenlabs pipeline".
| Build this skill allows AI assistant to evaluate machine learning models using a comprehensive suite of metrics. it should be used when the user requests model performance analysis, validation, or testing. AI assistant can use this skill to assess model accuracy, p... Use when appropriate context detected. Trigger with relevant phrases based on skill purpose.
| Create a minimal working Evernote example. Use when starting a new Evernote integration, testing your setup, or learning basic Evernote API patterns. Trigger with phrases like "evernote hello world", "evernote example", "evernote quick start", "simple evernote code", "create first note".
| Set up efficient local development workflow for Evernote integrations. Use when configuring dev environment, setting up sandbox testing, or optimizing development iteration speed. Trigger with phrases like "evernote dev setup", "evernote local development", "evernote sandbox", "test evernote locally".
| Configure Exa CI/CD integration with GitHub Actions and automated testing. Use when setting up automated testing for Exa integrations, configuring CI pipelines, or adding Exa health checks to builds. Trigger with phrases like "exa CI", "exa GitHub Actions", "exa automated tests", "CI exa", "exa pipeline".
| Create a minimal working Exa search example with real results. Use when starting a new Exa integration, testing your setup, or learning basic search, searchAndContents, and findSimilar patterns. Trigger with phrases like "exa hello world", "exa example", "exa quick start", "simple exa search", "first exa query".
| Implement Exa load testing, capacity planning, and scaling strategies. Use when running performance tests, planning capacity for Exa integrations, or designing high-throughput search architectures. Trigger with phrases like "exa load test", "exa scale", "exa capacity", "exa k6", "exa benchmark", "exa throughput".
| Configure Exa local development with hot reload, testing, and mock responses. Use when setting up a development environment, writing tests against Exa, or establishing a fast iteration cycle. Trigger with phrases like "exa dev setup", "exa local development", "exa test setup", "develop with exa", "mock exa".
| Flaky Test Detector - Auto-activating skill for Test Automation. Part of the Test Automation skill category.
| Flame Graph Generator - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| Gatling Scenario Creator - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| Gc Log Analyzer - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| Go Test Generator - Auto-activating skill for Test Automation. Part of the Test Automation skill category.
| Heap Dump Analyzer - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
Structured hypothesis formulation, experiment design, and results interpretation for Product Managers. Use when the user needs to validate an assumption, design an A/B test, evaluate experiment results, or decide whether to ship based on data. Triggers include "hypothesis", "A/B test", "experiment", "validate assumption", "test this", "should we ship", or when making a decision that should be data-informed.
| Integration Test Generator - Auto-activating skill for API Integration. Part of the API Integration skill category.
| This skill enables Claude to run and manage integration test suites. It automates environment setup, database seeding, service orchestration, and cleanup. Use this skill when the user asks to "run integration tests", "execute integration tests", or any command that implies running integration tests for a project, including specifying particular test suites or options like code coverage. It is triggered by phrases such as "/run-integration", "/rit", or requests mentioning "integration tests". The plugin handles database creation, migrations, seeding, and dependent service management.
| Integration Test Setup - Auto-activating skill for Test Automation. Part of the Test Automation skill category.
| Jest Test Generator - Auto-activating skill for Test Automation. Part of the Test Automation skill category.
| Jmeter Test Plan Creator - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| K6 Script Generator - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| Keyboard Navigation Tester - Auto-activating skill for Frontend Development. Part of the Frontend Development skill category.
| Design MVPs, validated learning experiments, and pivot-or-persevere decisions using Build-Measure-Learn. Use when the user mentions "MVP scope", "validated learning", "pivot or persevere", "vanity metrics", or "test assumptions". Covers innovation accounting and actionable metrics. For 5-day prototype testing, see design-sprint. For customer motivation analysis, see jobs-to-be-done. Trigger with 'lean', 'startup'.
| This skill enables Claude to test load balancing strategies. It validates traffic distribution across backend servers, tests failover scenarios when servers become unavailable, verifies sticky sessions, and assesses health check functionality. Use this skill when the user asks to "test load balancer", "validate traffic distribution", "test failover", "verify sticky sessions", or "test health checks". It is specifically designed for testing load balancing configurations using the `load-balancer-tester` plugin.
| This skill enables Claude to create and execute load tests for performance validation. It is designed to generate load test scripts using tools like k6, JMeter, and Artillery, based on specified test scenarios. Use this skill when the user requests to create a "load test", conduct "performance testing", validate "application performance", or needs a "stress test" to identify breaking points in the application. The skill helps define performance thresholds and provides execution instructions.
| Load Test Scenario Planner - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| Execute comprehensive load and stress testing to validate API performance and scalability. Use when validating API performance under load. Trigger with phrases like "load test the API", "stress test API", or "benchmark API performance".
| Locust Test Creator - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| Memory Profiler Setup - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| This skill enables automated testing of mobile applications on iOS and Android platforms using frameworks like Appium, Detox, XCUITest, and Espresso. It generates end-to-end tests, sets up page object models, and handles platform-specific elements. Use this skill when the user requests mobile app testing, test automation for iOS or Android, or needs assistance with setting up device farms and simulators. The skill is triggered by terms like "mobile testing", "appium", "detox", "xcuitest", "espresso", "android test", "ios test".
| Mocha Test Setup - Auto-activating skill for Test Automation. Part of the Test Automation skill category.
| Generate mock API servers for testing and development with realistic response data. Use when creating mock APIs for development and testing. Trigger with phrases like "create mock API", "generate API mock", or "setup mock server".
| This skill allows Claude to evaluate machine learning models using a comprehensive suite of metrics. It should be used when the user requests model performance analysis, validation, or testing. Claude can use this skill to assess model accuracy, precision, recall, F1-score, and other relevant metrics. Trigger this skill when the user mentions "evaluate model", "model performance", "testing metrics", "validation results", or requests a comprehensive "model evaluation".
| This skill enables Claude to validate test suite quality by performing mutation testing. It is triggered when the user asks to run mutation tests, analyze test effectiveness, or improve test coverage. The skill introduces code mutations, runs tests against the mutated code, and reports on the "survival rate" of the mutations, indicating the effectiveness of the test suite. Use this skill when the user requests to assess the quality of their tests using mutation testing techniques. Specific trigger terms include "mutation testing", "test effectiveness", "mutation score", and "surviving mutants".
| Network Latency Tester - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| Automates software development overnight using Git hooks to enforce test-driven development (TDD). This skill should be used when Claude needs to build new features, refactor existing code, or fix bugs autonomously, ensuring all changes are fully tested and meet specified quality standards. Use when the user mentions "overnight development", "autonomous coding", or asks about TDD workflows and Git hooks. This skill leverages Git hooks to block commits until all tests pass, enforcing a rigorous TDD process and ensuring high-quality, production-ready code.
| Percentile Analyzer - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| Performance Baseline Creator - Auto-activating skill for Performance Testing. Part of the Performance Testing skill category.
| This skill enables Claude to automatically detect performance regressions in a CI/CD pipeline. It analyzes performance metrics, such as response time and throughput, and compares them against baselines or thresholds. Use this skill when the user requests to "detect performance regressions", "analyze performance metrics for regressions", or "find performance degradation" in a CI/CD environment. The skill is also triggered when the user mentions "baseline comparison", "statistical significance analysis", or "performance budget violations". It helps identify and report performance issues early in the development cycle.
| This skill enables Claude to design, execute, and analyze performance tests using the performance-test-suite plugin. It is activated when the user requests load testing, stress testing, spike testing, or endurance testing, and when discussing performance metrics such as response time, throughput, and error rates. It identifies performance bottlenecks related to CPU, memory, database, or network issues. The plugin provides comprehensive reporting, including percentiles, graphs, and recommendations.
| Execute this skill empowers AI assistant to perform regression analysis and modeling using the regression-analysis-tool plugin. it analyzes datasets, generates appropriate regression models (linear, polynomial, etc.), validates the models, and provides performa... Use when analyzing code or data. Trigger with phrases like 'analyze', 'review', or 'examine'.
| Property Based Test Helper - Auto-activating skill for Test Automation. Part of the Test Automation skill category.
| Pytest Test Generator - Auto-activating skill for Test Automation. Part of the Test Automation skill category.