xint-phased-credential-deployment-model

xint capabilities split across three credential phases: Phase 1 (xAI API key only, already available) unlocks 15+ commands immediately including x_search, analyze, article extraction, collections. Phase 2 (X Bearer Token) adds direct X API v2 with exact metrics, stream, watch, trends. Phase 2b (OAuth 2.0 Client ID) adds write operations: like, bookmark, engage AI engine, analytics. Design the system to auto-detect available credentials and expose only valid commands.