How do I govern filesystem reads and writes from AI agents in a healthcare environment?

Route filesystem reads and writes through Kastra. The Kastra proxy or SDK intercepts each file operation before it executes, evaluates ABAC policy against the request attributes, environment, principal identity, and risk signals, and returns an allow, deny, redact, or human-approval decision. Healthcare customers map controls directly to HIPAA, HITRUST, GDPR, 21 CFR Part 11.