Antigravity Manager Skill by ara.so — Daily 2026 Skills collection. Antigravity Manager is a professional AI account manager and proxy gateway. It takes Google (Gemini) and Anthropic (Claude) web session tokens and exposes them as standard API endpoints (OpenAI-compatible, Anthropic-native, and Gemini-native formats) with intelligent multi-account rotation, quota tracking, and automatic failover. Key capabilities: - Multi-account management with real-time quota dashboards - Protocol conversion: web sessions → OpenAI / Anthropic / Gemini API - Auto-rotation on 429/401 errors (millisecond failo…