It’s built on the IntelliJ platform, and specifically on JetBrains’ split mode API, which means it works properly when your IDE backend runs on a different machine than your UI. What split mode actually isSplit mode is JetBrains’ name for the architecture behind remote development. For plugin authors, split mode changes where your code runs, and JetBrains is blunt about what happens if you ignore it. Why we designed for it up front instead of retrofittingOur old JetBrains plugin was a webview wrapper. How other agents get into JetBrainsThere are four routes into a JetBrains IDE right now, and they carry different tradeoffs.