Mayor-Worker Pattern

Two-tier agent hierarchy for reliable multi-agent orchestration at scale.

When to Use

• Building multi-agent systems (Epic 07+)
• Coordinating 3+ agents on related work
• Preventing "coordination collapse" (79% of multi-agent failures)
• Scaling beyond 10 agents reliably

Core Principle

"More agents can make things WORSE." — Google/MIT Dec 2025

Once a single agent reaches 45% accuracy, adding more agents often degrades performance due to coordination overhead. The fix: strict hierarchy with information hiding.

Architecture