I Discovered the Ultimate Multi-Agent Coding Setup with Budget Controls 🔥

Your team uses Claude Code for refactoring. Cursor for autocomplete. GitHub Copilot for quick fixes. All good tools. Then the bill arrives. This is the quiet crisis happening across engineering teams right now. Multiple AI coding assistants are incredible, but they're a financial free-for-all without proper controls. I spent one week discovering exactly what we needed: a central gateway that routes all coding agents through unified budget controls, cost attribution, and intelligent model selection. Here's what I learned.