Show HN: Harness – Manage parallel Claude Code agents across Git worktrees (github.com)

Harness, a new application, allows users to manage multiple Claude Code agents simultaneously across Git worktrees, addressing the need for improved organization and streamlined development workflows. With the ability to run up to ten agents concurrently and control them from mobile devices, developers can expedite their coding processes significantly, sidestepping limitations of the default Claude interface. The app features an embedded editor, live pull request (PR) status updates, and a comprehensive command center for quick oversight of all active worktrees. This tool is particularly significant for the AI/ML community as it optimizes multi-agent interactions and integrates with popular version control systems like Git, facilitating a more efficient coding environment. Technical innovations include customizable hotkeys, a side-by-side code review tool, and a unique feature that allows Claude to autonomously create and manage worktrees. With built-in activity tracking and multi-repo support, Harness aims to empower developers with a user-centric approach to parallel coding using AI, making it a noteworthy addition to the evolving landscape of AI-assisted development tools.