Adversarial testing suite: a separate pass that writes unit + E2E tests from an independent, spec-only perspective to catch bugs the author/planner missed.

Opfor SDK — programmatic adversarial testing for AI systems

FortifAI CLI — dynamic adversarial testing for AI agents

Adversarial Testing Harness for Large Language Models

Memory Palace + Red Queen Protocol - A Claude Code skill for durable knowledge through vivid encoding + adversarial testing

Adversarial testing and chaos injection toolkit for services and APIs.

Simple and complete DOM testing utilities that encourage good testing practices.

Simple and complete React DOM testing utilities that encourage good testing practices.

Custom jest matchers to test the state of the DOM

SOTA NPM module for agentic processes using local or cloud LLMs.

Fire events the same way the user does

Delightful JavaScript Testing.

Delightful JavaScript Testing.

ESLint plugin to follow best practices and anticipate common mistakes when writing tests with Testing Library

Pi extension exposing tmux as native tools — drive other TUIs (pi, claude, copilot CLI, lazygit, etc.) for adversarial testing without fragile sleep+grep loops.

Producer-side source, extraction, candidate, and review contracts for projecting verified claims into Surface.

Simple and complete React hooks testing utilities that encourage good testing practices.

React package for snapshot testing.

The Firebase Authenticaton component of the Firebase JS SDK.

Simple and complete React Native testing utilities that encourage good testing practices.