# Documentation thought stream is a spec-driven event system. Its central design claim is simple: an event, a model run, and an external action are different facts and require different receipts. ## Read next - Architecture: components, authority, and the path from ingress to durable evidence. - Security: containment, privacy, and why the public website cannot read the private stream. ## Current boundary This documentation is public and static. Operational data remains private. The private inspector requires an allowlisted ATProto identity or the explicitly configured break-glass Basic credential.