I’m building a local-first TypeScript guard for runaway AI-agent costs (opens in new tab)

I’m building AI CostGuard, a local-first TypeScript / Node.js runtime safety layer for AI agents. The problem I’m working on is not model quality or prompt engineering. It is the boring failure mode where an agent keeps making provider calls because of bad control flow: retry storms similar prompt loops max-step explosions unknown model pricing accidental budget overruns repeated calls with no useful progress The goal is to block risky calls before the provider API execution happens. The curr...