Show GN: Geas - Claude Code 멀티 에이전트 장기 작업을 위한 계약 기반 거버넌스 harness

Geas introduces a contract-based governance framework that solves a critical gap in multi-agent AI development: ensuring verifiable accountability when multiple Claude Code agents work concurrently on complex tasks. By implementing mandatory verification gates, structured decision-making with built-in critics, and persistent learning across sessions, it fundamentally shifts AI engineering from trust-based to evidence-based practices. This framework is essential for moving autonomous agent systems from experimental prototypes to production-grade deployments.