Show HN: AgentGuard – Auto-kill AI agents before they burn through your budget

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Your AI agent hits an infinite loop and racks up $2000 in API charges overnight. This happens weekly to AI developers.AgentGuard monitors API calls in real-time and automatically kills your process when it hits your budget limit.How it works:Add 2 lines to any AI project: const agentGuard = require('agent-guard'); await agentGuard.init({ limit: 50 }); // $50 budget // Your existing code runs unchanged const response = await openai.chat.completions.create({...}); // AgentGuard tracks costs automaticallyWhen your code hits $50 in API costs, AgentGuard stops execution and shows you exactly what happened.Why I built this:I got tired of seeing "I accidentally spent $500 on OpenAI" posts. Existing tools like tokencost help you measure costs after the fact, but nothing prevents runaway spending in real-time.AgentGuard is essentially a circuit breaker for AI API costs. It's saved me from several costly bugs during development.Limitations: Only works with OpenAI and Anthropic APIs currently. Cost calculations are estimates based on documented pricing.Source: https://github.com/dipampaul17/AgentGuardInstall: npm i agent-guardComments URL: https://news.ycombinator.com/item?id=44742710Points: 1# Comments: 0