JetBrains Air in IDEs opens EAP for Codex, Copilot, Cursor, and Claude
JetBrains opened Early Access for Air in its IDEs (Marketplace plugin or 2026.3 EAP): an agentic-first shell that detects Codex, GitHub Copilot, Cursor, Claude Agent, Junie, and other ACP agents, with parallel sessions, temporary worktrees, and free Junie Lite runs. It ships with no agents installed and sends data to your existing provider, not JetBrains.