Simply put, Relay is just a copy-paster between Claude, Codex and Cursor. It adds a &#x2F;relay command to those GUIs that just sends the chat history since last over to the other side.<p>I’ve been working on this small Mac app called Kanary that offers essential features. While building it, I found myself stupidly repeating the process of being a messenger between Claude and Codex.<p>Then I thought, why not build a feature that helps my development process? What if Kanary could be a meta-app that bridges between harnesses? That’s when I hit on the idea of a meta harness. A wrapper that works IN the GUI apps that we already use, not a new app.<p>It’s still just a copy-paster, but it has changed how I work tremendously. So far it’s a painkiller for me, not a vitamin. I’d love to hear what you think of this simple tool that does this one simple thing.<p>75 free relays per week. Copy is always free.

Simply put, Relay is just a copy-paster between Claude, Codex and Cursor. It adds a &#x2F;relay command to those GUIs that just sends the chat history since last over to the other side.<p>I’ve been working on this small Mac app called Kanary that offers essential features. While building it, I found myself stupidly repeating the process of being a messenger between Claude and Codex.<p>Then I thought, why not build a feature that helps my development process? What if Kanary could be a meta-app that bridges between harnesses? That’s when I hit on the idea of a meta harness. A wrapper that works IN the GUI apps that we already use, not a new app.<p>It’s still just a copy-paster, but it has changed how I work tremendously. So far it’s a painkiller for me, not a vitamin. I’d love to hear what you think of this simple tool that does this one simple thing.