A relentless interview that pressure-tests a plan against the codebase, sharpens domain language, and updates CONTEXT.md and ADRs when decisions become durable.

Implement work from an approved spec or ticket set, run focused and full tests, invoke code review, and commit the result to the current branch.

React and Next.js performance guidance for writing, reviewing, and refactoring production UI code.

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

Reviews animation and motion code against a high craft bar derived from Emil Kowalski's design engineering philosophy. Default to flagging; approval is earned.

Most popular Mocking framework for unit tests written in Java

access to david ondrej's personal agent skills

Open source alternative to AWS. Elastic compute, block storage (non replicated), firewall and load balancer, managed Postgres, K8s, AI inference, and IAM services.

A curated collection of reusable agent skills for designers and builders to generate UI prompts and workflows using AI coding agents.

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

The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQL, WebSocket, and more. Use any Node.js module.

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.