AI Agent Skills

QA via natural language AI tests

Test suites for Web platform specs — including WHATWG, W3C, and others

Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.

Pressure-test a plan against the codebase, domain glossary, and architectural decisions.

Stealth Chromium that passes every bot detection test. Drop-in Playwright replacement with source-level fingerprint patches. 30/30 tests passed.

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.

Most popular Mocking framework for unit tests written in Java

The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQ…

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that…

Run tests using Jest & Puppeteer 🎪✨

Deepchecks: Tests for Continuous Validation of ML Models & Data. Deepchecks is a holistic open-source solution for all of your AI & ML validation needs, enabling to thor…

Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browser. Use when you need to inspect the DOM, capture console err…

A library that creates fully populated objects for your unit tests.

Drives development with tests using the red-green-refactor loop. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove th…

Add or upgrade a curated, immutable managed CLI for Sim Function sandboxes, including client-safe catalog metadata, a pinned server-only installation recipe, checksum an…

Marc Andreessen-mode decision and productivity skill. A blunt, market-first operator that pressure-tests ideas, ventures, features, and career bets through Andreessen's…