Multi-Agent Systems

A real record of connecting an AI team with 4 Claude Code Hooks - PreToolUse as the guardrail, PostToolUse as the logger, Stop as the relay - flipping “human waiting for AI” into AI auto-handoffs. All the pitfalls we’ve hit, laid out bare.

When an Agent says it’s done, that doesn’t mean it’s actually done — this is something we’ve learned the hard way at Judy AI Lab. Silent failures in scheduled tasks, a 40% rejection rate on deliveries forced us to design a five-stage self-review loop: from spec confirmation, implementation, code review, fix, to Xiaoyue’s QA scoring. After going live for over a month, the rejection rate dropped from 40% to 10%.