Custodian is a governed multi-agent finance-ops platform: AI agents read invoices, score them for fraud/risk, route approvals, and auto-pay the safe ones. Six real governance layers wrap the agent runtime — Identity, Data, Model, Policy, Agent Runtime, and Operations — so every agent action is auditable and provable after the fact. It's a full Docker stack (Keycloak, SPIRE, Infisical, OpenMetadata, Presidio, LiteLLM, MLflow, Langfuse, Prometheus/Grafana) calling real LLMs (OpenAI + Groq via LiteLLM), not a mocked demo

