Learning Design from Mature Coding Agents (38): Agent as a Service — Wrapping Your Loop in Something Other Programs Can Call
rivumi now has a Cloudflare Durable Object run resource with async creation, status/cancel/artifacts, live NDJSON, and Last-Event-ID SSE; remote approvals use a separate short-lived capability. Python also provides an attach client and a stateful conversation WebSocket. Production deployment, cross-runtime parity, and full multi-tenant hardening remain unverified.