reaatech/circuit-breaker-agents

These packages give you a circuit breaker designed specifically for agent-to-tool and agent-to-agent communication, with per-tool circuit isolation, confidence-aware tripping, and cost-based rate limiting. You would adopt them to prevent cascading failures when an LLM agent repeatedly calls a degraded tool, or to automatically route traffic away from expensive or unreliable model endpoints. The most distinctive thing is that circuits are identified by a logical `circuitId` (not a hostname), and the state machine uses a lazy auto-transition model with no timers, plus optional leader-elected persistence across restarts via Firestore, DynamoDB, or Redis.