Show HN: Agent Firewall – Go proxy to kill LLM death spirals

I run 6 AI agents as my entire team. Yesterday two agents got stuck in an infinite loop arguing over JSON formatting. Burned $47 in API calls while I slept. Anyone running multi-agent setups (CrewAI, AutoGen, LangGraph) knows the pain: agents go rogue, tokens burn, no circuit breaker. Change one en var (OPENAI_BASE_URL= it detects death spirals and physically cuts the connection. Local-only, no SDK, no cloud, single binary. Ship in 2 weeks if enough people need it. Have you been burned by runaway agents? Comments URL: Points: 2 # Comments: 2.