How to Make Claude, Codex, and Gemini Collaborate on Your Codebase

You know that moment when Claude Code has been spinning on the same TypeScript error for the third time? You paste the same context, try rephrasing your prompt, and it still misses the fix. What if Claude could just... ask Codex for help? That's not a hypothetical anymore. I've been running a setup where my AI coding agents collaborate with each other, and it's changed how I work. The Problem: Single-Agent Tunnel Vision Every AI model has blind spots. Claude is great at architectural reasoning but sometimes overthinks simple fixes. Codex is fast and practical but can miss edge cases. Gemini has strong research capabilities but may not know your codebase conventions. When you're stuck, you switch between agents manually — copy context from one, paste it into another, translate the answer back. It works, but it's slow and painful. The Fix: Let Agents Talk to Each Other I built agent-link-mcp, an MCP server that lets any AI coding agent spawn other agents as collaborators. The key insight