I built an open-source audit trail for AI agents (after mine silently failed for hours)

The problem I was running a multi-agent pipeline and one of my agents silently failed. The only alert I got said "daily loss limit reached" — completely misleading. The real cause was a missing file the agent never reported. I had zero visibility into what any agent had actually done. What I built AgentLens — a Python SDK for AI agent governance. Three modules: Audit trail — every LLM call and tool use logged to SQLite automatically Authorization — policy-based gates so agents can only call what you've approved Anomaly detection — baseline + threshold config, alerts when behavior drifts One-line integration Drop-in for Anthropic: python from agentlens.integrations.anthropic import TracedAnthropic client = TracedAnthropic(agent_id="my-agent") response = client.messages.create(...) # auto-traced