Killer Feature (In-Game RAG): Beyond social media, I engineered a direct in-game integration for an MMORPG environment. Players can ping the AI directly in the game chat. A webhook sends the character's live context (level, zone, class) to the FastAPI backend, where a pgvector-powered RAG pipeline searches the server's knowledge base. Grok formulates the answer, Claude verifies its safety, and the response is instantly delivered back to the player in-game.