{"repo":"OpenSource03/harnss","free":true,"listed":false,"github":"https://github.com/OpenSource03/harnss","clone":"git clone https://github.com/OpenSource03/harnss.git","description":"Open-source, desktop client/UI build to harness Claude Code, Codex and any other Agent accepting Agent Client Protocol. Run multiple AI coding agents side by side with rich tool visualization, MCP integrations, built-in terminal, git, browser and just about anything else you may need.","language":"TypeScript","stars":352,"topics":["agent-client-protocol","agentclientprotocol","ai","chatgpt","claude","claude-code","codex","copilot","gemini"],"license":"MIT","category":"mcp-servers","readme_excerpt":"[!CAUTION] Harnss is currently pending a large rewrite to improve usability, performance and overall codebase into a more production ready app. I will share more info about it soon. [!WARNING] Harnss is in early development and issues are to be expected. Please feel free to report bugs and issues in the Issues section. Harness your AI coding agents. --- Harnss is a cross-platform desktop app that gives you one interface to run, manage, and switch between AI coding agents — Claude Code, Codex, and any ACP-compatible agent — without losing context, sessions, or tool state. Why Harnss? - One app, every agent. Run Claude Code, Codex, and custom ACP agents side by side. No more juggling terminals or losing context when switching tools. - See what your AI is actually doing. Tool calls render as interactive cards with word-level diffs, syntax highlighting, and inline bash output — not raw JSON. - Your workspace, your way. Built-in terminal, browser, git, MCP servers, and file panels — all scoped per project, all staying open while you work. --- Screenshots Terminal, browser, git, and MCP integrations — all in one window. One UI - all agents. Browse entire ACP registry. Click to reveal other screenshots https://github.com/user-attachments/assets/41f5bcbc-c141-4a16-b430-79f8e01d107e Organize your projects in spaces. Every tool call beautifully visualised - even those from popular MCPs. Run multiple agent sessions side by side — switch instantly without losing progress. --- Features Mu","default_branch":null,"files":null,"tree":[],"storefront":"/r/OpenSource03","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/OpenSource03/harnss/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}