A declarative agent is one whose shape (tools, brains, prompts, triggers) is set in the workspace and executed by the runtime, not compiled from code you maintain. The benefits compound: changes are reviewable, prompts hot-reload in 200ms, non-engineers can edit safely, and an agent travels as a single portable unit. You build and run it all in one place instead of wiring a codebase.
Engineering notes from the Digitorn team. No marketing, no launch announcements, no "10 prompts that will change your life". Just the things we write that we'd want to read.