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.

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

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.

Terratest is a Go library that makes it easier to write automated tests for your infrastructure code.

QA via natural language AI tests

Production First and Production Ready End-to-End Speech Recognition Toolkit