harnss

by OpenSource03 · TypeScript · ★ 306

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.

#agent-client-protocol#agentclientprotocol#ai#chatgpt#claude#claude-code#codex#copilot#gemini

Install

npx -y github:OpenSource03/harnss

Auto-generated from the repo's primary language — check the repo's own README for its exact install instructions.

Claude Desktop config

A starting point for your claude_desktop_config.json (auto-generated — the repo's README may specify a published package name or required env vars):

{
  "mcpServers": {
    "harnss": {
      "command": "npx",
      "args": [
        "-y",
        "github:OpenSource03/harnss"
      ]
    }
  }
}

From the README

> [!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. 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/41f…

Read full README on GitHub →

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