Phasr

Phasr is a free software tool that helps engineering teams manage multiple AI coding assistants at the same time. Instead of letting these AI tools fight over the same files, Phasr creates separate workspaces for each one. This allows developers to review the code changes carefully before merging them into the main project. It is designed to work on computers running macOS and follows an open-source license called MIT.

Benefits

Phasr offers several important advantages for software development teams. First, it enables parallel execution, meaning dozens of AI agents can work on different tasks simultaneously without slowing each other down. The tool provides real-time progress tracking so users can see exactly what every agent is doing. Second, it uses Git worktree isolation to prevent file collisions. Each agent gets its own copy of the project files, so changes do not overwrite one another. This ensures a clean merge path when the work is ready. Third, the system supports universal compatibility. It works with any terminal-based AI agent, including tools from Anthropic, OpenAI, Google, and others. Finally, it includes a strong code review workflow. Users can view file-level diffs and approve or reject changes before they affect the main codebase.

Use Cases

Phasr is best used by engineering teams that want to speed up their development process while maintaining strict control. It is ideal for situations where multiple AI coding agents need to work together on a single project. Teams can use it to ship code faster by running several agents at once. It helps avoid the chaos that often happens when multiple tools try to edit the same files at the same time. Developers can also use Phasr to utilize a variety of AI coding tools without being locked into a single vendor. The tool integrates well with popular development environments like Visual Studio Code, JetBrains, and Neovim. It also connects with project management platforms like GitHub and Linear.

Pricing

Phasr is completely free to use. It is available as open-source software under the MIT license. There are no hidden fees or subscription costs associated with the tool.

Vibes

There are no specific public reviews or testimonials available in the provided information about how users feel about Phasr. The focus remains on its technical capabilities and open-source nature.

Additional Information

Phasr is available exclusively for macOS. The project is open source, which means the community can inspect and modify the code if needed. For more details on engineering playbooks regarding parallel execution and Git worktree isolation, users can refer to the Phasr blog. The tool is agent-agnostic by design, ensuring no vendor lock-in or proprietary protocols are required.