This architecture pairs a cloud-hosted frontier model (Gemini 3.7 Flash, Claude 4.6 Haiku) as the primary orchestrator with a fleet of local, zero-cost specialized lab models (MuppetLabs LLMs) on Apple Silicon / local compute. By enforcing Prefix-Cache Preservation, 65K Context Auto-Compaction (6.5%), Zero-Polling Asynchronous Delegation, and a Statler-Canti Maker-Checker Quality Loop, per-turn cloud costs drop from $0.11+ down to ~$0.005 while eliminating code and UI defects.
Crucially, offloading heavy tasks to asynchronous subagents unlocks continuous conversational flow: users are never trapped waiting for long execution, test runs, or compilation loops (eliminating the classic "need to interrupt Claude but stuck waiting" UX barrier).