Agent Firewall – Go proxy to kill LLM death spirals

Name: Agent Firewall – Go proxy to kill LLM death spirals
Availability: InStock
Author: wuweiaxin

by wuweiaxin·Mar 9, 2026·2 points·1 comment

Visit Project View on HN

AI Analysis

●●SolidSolve My ProblemShip It

Wire-protocol circuit breaker for agents when LangSmith costs too much.

Strengths

•Reverse proxy means zero code changes to existing agent frameworks
•Single binary, local-only deployment avoids cloud dependency and latency
•Directly addresses costly pain point with measurable ROI ($47 burned example)

Weaknesses

•Not yet shipped—'2 weeks if enough people need it' is pre-product territory
•Death spiral detection logic unspecified; could have false positives

Post Description

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.

Building an open-source Go reverse proxy. Change one env var (OPENAI_BASE_URL=http://localhost:8080/v1), 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?