Architecture Development Notes

Sep 7, 2026 · Artificial Intelligence

From Chat to Control Plane: Making Agent Sessions Addressable and Orchestratable

This article explores how coding agent sessions are evolving into addressable runtime objects with a control plane enabling external message injection, session overview, inter-session references, and persistent metadata — detailing the architectural shift from chat-bound terminals to orchestratable services, plus engineering challenges like metadata persistence, directory boundaries as security perimeters, external write authentication, and queryable session states.