Houhou – Resilience Policies Package for TypeScript Async Functions
Yet another resilience wrapper, but this one's free.

Essential resilience patterns for LLMs, but LangChain already covers this ground.
Backend engineers building production AI applications
LangChain · Vercel AI SDK · Ollama
Yet another resilience wrapper, but this one's free.
Yet another resilience library in a space dominated by tower and tokio-retry.
Adds circuit breakers and request deduplication to native fetch via a plugin system.
VERONICA puts an enforcement shim between your agent and the model so you can halt costly spirals before a request hits the provider — it natively exposes hard budget enforcement, circuit breakers, retry containment and degradation levels. The README + runnable runaway-loop demo make the failure mode concrete and the API (BudgetEnforcer, RuntimeContext, BudgetExceeded) is small and practical. I'd like to see richer observability/adapter docs for common agent frameworks, but as an enforcement-first primitive this is a clever, useful tool.
Code execution as a literal circuit board — watch data flow through gates in real-time.
First production quantum simulator that runs entirely in TypeScript, no Python.