Show HN: Governor, a firewall for AI agent spend and tool calls

Category: security

Tags: ai-agents, proxy, guardrails, audit-log, cost-control

Score: 4.7/10 (Innovation: 5, Technical: 4, Documentation: 3, Utility: 5)

Governor is a lightweight proxy that sits between AI agents and model providers to enforce spending caps and tool-call policies, signing decisions into an audit log. It addresses a real need for guardrails as agents gain autonomy, but the offering is early and thinly documented.

Target audience: backend developers and platform teams deploying AI agents

Repository: https://bsvkey-governor-demo.fly.dev/

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