Developer Tools Listings
Compare the best open-source listings for developer tools. SDKs, CLIs and frameworks for building with AI. Ranked by GitHub stars, with install commands, what each one can touch and scan reports where available.
AutoHarness
AutoHarness: Automated Harness Engineering for AI Agents
Nix Config
My Nix system configs!
Plinth
Plinth is an AI-native engineering toolkit for modern Java enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers.
Open Skills
OpenSkills: Run Claude Skills Locally using any LLM
Hypha
Harness-oriented agent system framework for production-grade LLM agent applications
MCP Server Solidworks
This MCP server integrates with SolidWorks API and structuring it into Claude-compatible context streams.
Claude Swarm
Multi-agent orchestration for Claude Code — decompose tasks, coordinate agents, visualize everything in a rich terminal UI
Ai4j
Java 8+ agentic SDK: unified LLM access (OpenAI/Anthropic/DashScope/Doubao/DeepSeek...),unified AI service(image/video/audio...), Tool Calling, MCP, RAG, SKILLS,Agent Runtime, A2A, agent blueprint, agent harness, and a built-in Coding Agent CLI/TUI/ACP.
Dryforge
Bounded-autonomy plugin harness for agents. Intent to implementation: ready, then go.
Harness Remote
Native-session control plane for Codex, Claude Code, OpenCode, OMP and PI. Run, resume and hand off coding sessions across your machines.
Deepseek Harness Local Android
Run the DeepSeek Harness AI agent natively on Android — no root, no Termux, extension center included | 手机本地运行 DeepSeek Agent,免 Root 免 Termux
OwnPilot
Privacy-first personal AI assistant platform with autonomous agents, tool orchestration, and multi-provider support.
SHAFT ENGINE
Java test automation framework for web, mobile, API, CLI, database, and desktop E2E testing with a fluent API and built-in reporting.
Agent Bridge
A local bridge for bidirectional collaboration between Claude Code and Codex. 连接 Claude Code 与 Codex 的本地实时协作桥接工具。
Rsc Harness
Your agent invents things because it has no memory, and can't touch your database because it has no arms. rsc is the meta-harness that gives it both, plus the trade to know the job and the reflexes to not break your repo. For Claude Code, Codex and 15 more.
Flowcraft
Production-grade Go SDK for building AI agents with long-term memory, knowledge retrieval, and voice — runnable as a library, a daemon, or a real-time pipeline.
Cc Sessions Viewer
support cc/codex/grok build/kimicode/pi/antigravity cli/opencode sessions viewer, skills manage, token usage statistics, global search, resume, and export to html
MARS
REST framework for Delphi: JAX-RS style resources and routes, servers and clients, JWT, OpenAPI 3, FireDAC and Devart UniDAC/MyDAC/IBDAC, SSE, MCP servers for AI agents. Windows, Linux, Docker.
Agentenv Framework
Creating realistic RL environments requires collaboration between researchers, engineers, and domain experts across many dimensions: artifacts, environments tools, dynamism of the environment, reproducibility, and more. There is no open source framework for building these environments effectively. Until now.
MCP Flutter
MCP Toolkit for Flutter AI Agent Driven Development (MCP/CLI + custom client side tools) - via closed feedback loop (visual & semantic snapshot) and high client side customization adaptable for any Flutter app. Nowadays it is often called as agentic harness.
Openchatx MCP
Turn ChatGPT into a local agent runtime. Operate your computer, use local tools, discover MCP servers, and delegate work to your own models through one MCP connection.
Ospec
Spec-driven, agentic workflow framework for AI coding agents. Turn a request into a verifiable goal loop — plan, act, verify — with durable specs and evidence in your repo. Works with Claude Code, Codex, Gemini, OpenCode, and plain CLI.
Goofish CLI
闲鱼 CLI · 原生支持 MCP · 为 AI Agent 而生 | Goofish (Xianyu) automation CLI · MCP-ready · Built for AI Agents
Intervals MCP Server
Model Context Protocol (MCP) server for connecting Claude and ChatGPT with the Intervals.icu API.
List refreshed November 15, 2026. Data comes from public GitHub repositories.