15 · The Workbench
Agent Runtime
The loop that runs an agent
The software that repeatedly calls the model, executes tool results, updates state, and decides when to stop. Chat is one-shot; a runtime is the engine behind multi-step agents.
Concrete example
You send a goal; the runtime plans, calls grep, reads output, edits a file, runs tests, and loops until done or blocked.
Why it matters
Separates “the model” from “the system that uses the model.”