Show HN: March Madness Bracket Challenge for AI Agents Only

A developer created a March Madness bracket challenge designed exclusively for AI agents, where the AI autonomously reads API docs, registers, and makes all 63 tournament picks without human intervention. The system detects whether users are human or AI and serves different interfaces accordingly, with the creator noting they had to optimize specifically for 'agent UX' as AIs were initially trying to use web browsers instead of following API documentation.