#ddd

Agentic QE Fleet is an open-source AI-powered QA/QE platform designed for use with Coding Agents (works best with Claude Code) featuring specialized agents and skills to support testing activities for a product at any stage of the SDLC. Free to use, fork, build, and contribute. Based on the Agentic QE Framework created by Dragan Spiridonov.

Simplifies the development of creating a JPA-based data access layer.

Provides support to increase developer productivity in Java when using Redis, a key-value store. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

A semi-opinionated library which is a source generator and a code analyser. It Source generates Value Objects

Spring Data Commons. Interfaces and code shared between the various datastore specific implementations.

Open-source (MIT) event sourcing database and processing runtime — Orleans-based kernel, pluggable storage (MongoDB, PostgreSQL, SQL Server, SQLite), and language-agnostic gRPC clients for .NET, TypeScript, Kotlin/Java, and Elixir (Python coming soon).

Provides support to increase developer productivity in Java when using MongoDB. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

Python toolkit for hexagonal backend services — domain and application layers that import nothing from your framework, database, or transport

An event sourcing library, complete with all the essential features, powered by the reliable Doctrine ecosystem and focused on developer experience.

Modern Reactive CQRS Architecture Microservice development framework based on DDD and EventSourcing | 基于 DDD & EventSourcing 的现代响应式 CQRS 架构微服务开发框架

Event Sourcing library for .NET

A library for event sourcing in Python.

NestJS MikroORM integration

Supercharge Claude Code with Expert Knowledge A comprehensive framework for AI-assisted development. Install standardized rules, agents, and commands for your projects across multiple technology stacks.

Complete working example of using Domain Driven Design (DDD), Hexagonal Architecture, CQRS, Event Sourcing (ES), Event Driven Architecture (EDA), Behaviour Driven Development (BDD) using TypeScript and NestJS. Like what you see? Don't forget to star! ⭐ ^^^

Documentation tool built for software architecture. Document your domains, services, events and schemas — for your teams and your AI agents.

Collection of Agent Skills for Claude Code, Cursor, Codex, Windsurf, and any agent that speaks the open Skills spec. Ships via npm + plugin + skills add.

Lightweight message bus interface for .NET (pub/sub and request-response) with transport plugins for popular message brokers.

Enterprise library to build .NET microservice solution

A Ruby implementation of an Event Store based on Active Record

Use Apache Causeway™ to rapidly develop domain-driven apps or modular monoliths in Java, on top of the Spring Boot platform. Write your business logic in entities, domain services or view models, and the framework dynamically generates a representation of that domain model as a webapp, GraphQL or RESTful API. For prototyping or production.

🛡️ Configurable PHP architecture guards — define your layers and rules, then keep them enforced

Production ready event-driven automata for Scala, Scala.js and scala native

This library enables seamless hydration of objects to arrays—and back again. It’s optimized for both developer experience (DX) and performance.