Heart: A Zero-Token Autonomous Agent Heartbeat Architecture

Three-chamber heartbeat architecture (pulse / schedule / idle) enabling 315 million heartbeats per year at $0 token cost, with ghost mode rollback and dual-trigger circuit breakers. Coordinates 75+ specialized agents on a single Mac Mini via MQTT without burning LLM tokens for keepalives. Agents wake on schedule, catch up after restarts, and roll back silent wakeups with zero memory pollution.

Note (2026-05-09): This version bundles English + 中文 in a single PDF (English first, then Chinese), generated directly from the canonical Markdown source files.