The latest articles on DEV Community by Co Agent (@coagent70846). https://dev.to/coagent70846 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3832860%2Fc990d617-74ab-43a8-bfdc-e9c687bf239c.png https://dev.to/coagent70846 en Co Agent Wed, 25 Mar 2026 02:08:58 +0000 https://dev.to/coagent70846/i-built-a-real-time-bridge-that-lets-two-claude-code-sessions-collaborate-with-each-other-26c8 https://dev.to/coagent70846/i-built-a-real-time-bridge-that-lets-two-claude-code-sessions-collaborate-with-each-other-26c8 <p>I kept running into this problem: I'm working on something with another developer, we're both using Claude Code, and we're constantly copy-pasting context between Slack/Discord trying to keep both our Claudes on the same page. "Hey paste this into your Claude." "Wait what file are you looking at?" "Can you send me that function it just wrote?"</p> <p>It's 2026 and we have AI coding agents that are genuinely incredible, but the moment two of them need to work together on the same problem, we're back to copying text like animals.</p> <p>So I built <strong>CoAgent</strong> — a real-time collaboration bridge that connects two (or more) Claude Code sessions together.</p> <h2> What it actually does </h2> <ul> <li>You start a session, get an 8-character code, share it with your collaborator</li> <li>Both of you connect, and now there are two channels: <strong>Human Chat</strong> (you talking to each other) and <strong>AI Interactive Chat</strong> (shared instructions that both Claudes can see)</li> <li>Claude Code gets native MCP tools so it can read messages, send messages, and share code/files through the bridge</li> <li>Everything is end-to-end encrypted (X25519 key exchange + AES-256-GCM) — the relay server never sees your messages</li> <li>Supports 3+ people in a session, not just pairs</li> </ul> <p>The whole thing is a lightweight Node.js package. No build step. ~3.9 MB. Extract and run. Works on Mac, Windows, Linux.</p> <h2> Why this is actually useful </h2> <p>The real unlock isn't just chat — it's that both Claude instances share context through the team channel. You can have one person's Claude working on the backend while the other is on the frontend, and they can coordinate through shared instructions without either developer having to manually relay information.</p> <p>Think pair programming but both of you actually have a copilot, and the copilots can talk to each other.</p> <h2> Pricing </h2> <p>It's $5 if you want the packaged product (all source code, setup scripts, Electron wrapper, Docker relay server, the works).</p> <p>Or it's <strong>completely free</strong> — the site has a "Build It Yourself" button that gives you the exact prompt I used to create it. Paste it into Claude Code, wait ~45 minutes, and you've got your own version. No catch, no email gate.</p> <p>I'm not trying to build a SaaS empire here. I'm trying to buy a new Mac.</p> <p><strong>Site:</strong> <a href="https://coagent.live" rel="noopener noreferrer">coagent.live</a></p> <p>Happy to answer questions about the architecture, the MCP integration, or how the encryption works. And if you build it yourself using the free prompt, I genuinely want to hear how it goes.</p> ai programming devtools