What should a production-level agent's runtime system look like? The preservation blogger shared this article: 1 To build a good proxy, you need a strong safety harness with tips and tools; a powerful runtime that can handle persistent execution, memory, multi-tenancy, observability, etc. 2 Durable execution uses task queues and checkpoints, so long agent loops survive crashes, deployments, and waiting for human input to recover from the last step. 3 Memory includes short-term memory within threads via checkpoints, and long-term memory across sessions in a namespace key-value store with semantic search. 4 Multi-tenancy uses authentication middleware to isolate user data, enable agents to operate via agent-authenticated user credentials, and uses RBAC to control operator access. 5 Human-in-the-loop uses interruptions for approval and clarification; streaming provides real-time progress, while policies handle double text.
6. Enforce policies such as PII editing and tool restrictions through guardrails in middleware; observability provides traces, time travel enables forked debugging, and sandboxing supports safe code execution.